OTOMOTIF CENTER

Power Efficiency

2009-05-28T03:37:00.003+07:00

Power Efficiency Corporation is a clean tech company focused on efficiency technologies for electric motors. Power Efficiency is incorporated in Delaware and is headquartered in Las Vegas, Nevada. The Company has developed a patented and patent-pending technology platform, called E-Save Technology, which has been demonstrated in independent testing to improve the efficiency of electric motors by up to 35% in appropriate applications. Electric motors consume over 25% of the electricity in the U.S. and many operate inefficiently. E-Save Technology can be licensed to motor, controls and equipment manufacturers. Power Efficiency’s products, based on E-Save Technology, include an Industrial Motor Efficiency Controller for three phase applications, such as escalators, crushers, granulators, mixers, saws and MG elevators, and a new Appliance Motor Efficiency Controller for small single phase applications such as residential and light commercial appliances. For more information, go to Power Efficiency.

As a cautionary note to investors, certain matters discussed in this press release may be forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such matters involve risks and uncertainties that may cause actual results to differ materially, including the following: changes in economic conditions; general competitive factors; acceptance of the Company’s products in the market; the Company’s success in technology and product development; the Company’s ability to execute its business model and strategic plans; and all the risks and related information described from time to time in the Company’s SEC filings, including the financial statements and related information contained in the Company’s SEC filing. Power Efficiency assumes no obligation to update the information in this release.
http://www.stockwatch.com

Alexa of Otomotif Center

2009-03-06T17:08:00.004+07:00

Within a week, alexa rank Otomotif Center changes in a very surprising and confusing, from 18 million increase to 3 million for a few days up and down continuously in the radius (18 million - 3 million) and this day changed to 1.7 million. Actually do not know what happened to alexa, why suddenly change every day, when postig normal visitor only and not many are still few.

I hope to continue to increase alexa, he he .. So fast alexanya high rank, if the pains alexa rank is still great value. I just tried to post and blogroll, add a link to external blogs in my friend. Do not forget, I learned in the blog-tutorial, that simple and clear, complete in various info about the new blog.

Automotive Center is a blog about the center of automotive knowledge, from the engine, electric engine and body, ECU (electronic control unit) and the various reviews and info about automotive news. We hope this blog into a blog about the study with automotive technology, information and interesting discussions with the automobile. Good luck always make automotive center.

Electric Engine-Cooling Fans

2009-03-05T23:47:00.002+07:00

Electric engine-cooling fans are used on all transversely and some longitudinally mounted engines. Small, permanent-magnet, high-torque motors are used for this application. They are able to move large amounts of air independent of engine speed. Conventional electric cooling fan circuits incorporate a relay and engine-coolant temperature switch.

When engine coolant temperature increases above 230*F or 100*C, the cooling fan switch closes to energize the relay coil and switch the cooling fan motor ON. The coil is also energized to switch the cooling fan motor ON any time the air conditioning unit is ON. On some vehicles the temperature-switch circuit is hot at all times, allowing the fan to continue to cool the engine compartment and the radiator coolant even if the ignition switch is OFF. For this reason, you should always disconnect the fan motor when working under the hood near it in case it comes on without warning.

Cooling fan motors are also controlled by on-board computer-based electronic control module. A temperature sensor provides the input information used by the computer to determine the exact coolant temperature. Based on this information and other instructions programmed into it, the computer outputs signal that switches the fan circuit ON and OFF.

One advantage of this type of control circuit is that the computer may be programmed to turn the fan OFF. Automatically when the car is traveling at speeds above approximately 35 mi/h. This puts less load on the alternator. The fan is not normally needed when the car travels at road speeds because of forced air flowing across the radiator.

Oxygen (O2) Sensor

2009-02-25T17:09:00.010+07:00

Oxygen Sensor

The exhaust gas or oxygen (O2) sensor is a device used by the vehicle's engine computer to measure the amount of oxygen present in the exhaust stream after combustion has taken place. This information is used by the computer to maintain the ideal air/fuel ratio.
The heart of oxygen sensor is a hollow cone-shaped piece of ceramic material called zirconium dioxide that is platinum coated on the inside and outside. This platinum coating provides the electrodes, as in a battery. During engine operation, exhaust gases are forced to pass over the outside of the sensor element while the inside is exposed to outside air (also referred to as reference gas). When the amount of oxygen in the exhaust differs from the reference gas, a voltage is produced.

A lean air/fuel ratio mixture has higher oxygen content in the exhaust gas. In this condition, the amount of oxygen ions present on both the inner and outer sensor surface are nearly equal, creating a lower output voltage. When the mixture gets too rich, however, there is a high amount of hydrocarbons in the exhaust as well as a low amount of oxygen. This condition causes an unequal amount of oxygen ions present on the exhaust side of the sensor tip compared to the inside, which causes a proportionately higher sensor voltage to be generated. The voltage output of a normal operating oxygen sensor will fluctuate rapidly back and forth between approximately 100mV (0.1V) and 1000mV (1V) at approximately 1200 to 155 RPM with a warm engine. The sensor switch point is the voltage value at which a radical change in output voltage occurs at around the ideal mixture ratio. Voltages above or below the switch point indicate that the air fuel ratio is rich or lean, respectively. The microcomputer tries to keep the sensor voltage at the ideal switch point by controlling fuel input to the engine.

Handling The ECU (Electronic Control Unit)

2009-02-21T06:47:00.008+07:00

ECU (Electronic Control Unit)

ECU (Electronic Control Unit) contains electronic component that are extremely sensitivy to power surges, static, electricity, and phisical shock. Whenever working on or around microcomputer-based system, the following procedures should be used to avoid damaged to electronic component.

Power must always be OFF wen removing or installing Ecu wiring harness connector. Make sure the ignitions is turned off and the ECu Fuse Removed.
To get rid of any static charge buildup, frequently touch a known good ground with your hands or use statistic protection kit during installation of a ECu. This is especially important if you are moving your feet on a carpet or sliding across a seat.
Jumper cable should be connected and disconnected with the ignition OFF to avoid possible power surges. You should avoid both giving and getting jump starts.
Always remove the battery cable before charging the battery in car.
Hande the ECu unit with extreme care. Dropping it from about waist height onto a concrete floor can do permanent damage.

never apply 12V directly to any components of an ECu control System unless intructed specifically to do so. Some components are designed to operate at much lower voltage levels and can be destroyed almost instantly by this higher voltage.
When measureing microcomputer-controlled components, suplay voltage with multimeter and separate ane test probe lead from other. If the two test probe leads accidentally make contact with each other during measurement, the circuit will be stored, resuting in damage to the control unit's power transistor.
When connecting disconnecting pin connectors into or from the microprosessor port, take care not to damage pin terminals.
When installing a replacement engine computer or other electronic module, take the unit out of its protective antistatic bag at the last possible minute.

Ignition Module And Coil Driver

2009-02-19T16:19:00.007+07:00

An ignitions module houses integrated circuits that contai transistor, diodes, resistor and capacitor. A power within the module is used to switch primary current ON and OFF. It works much like a mechanical switch, except that it has no moving part and is turned ON and OFF by timed electrical pulses.

Ignitions module uses a transistor to switch primary current ON and OFF

Although many different type of ignition modules are used, they all perform basically the same function: switch primary current On and Off. That image Shows an ignitions module that uses a singgle transistor to control primary current to ignition coil of a distributor-type ignitions system.

the image shows an ignition module that uses

IGNITION COIL DRIVER POWER IC

The modern ignition coil driver power IC, One chip, small and....

Electronic Variable-Assist Power Steering

2009-02-18T18:40:00.002+07:00

The power steering unit is designed to reduce the mount of effort required to turn the steering wheel. Conventional Power steering system operate by means of hydraulic pump driven by abelt from the crankshaft pulley. This pump provides the fluid pressure and flow needed to operate the system. Maximum pressure line and return line connect the pump to the system. the hydraulic pressure provides most of the force needed for steering. The remaining steering effort provides needed driver feel for googd steering control.
The basic purpose of an electronic variable assist power steering system is to provide maximum power assist for light steering effort during low-speed vehicle maneuvering, such as parking, and minimum power assist for firm steering wheel control and directional stability at higher speeds.

Essendtially, the system is made up of microprosessor-based control modul the recives information on vehicle speed sensor. The control modul prosesses this information and signal an electrically controlled actuator valve in regard to annamount of assist required. During parking and low-speed operation, the control module sends a signal to actuator valve steeper motor, positioning the valve spool to allow for maximum power assist. As vehicle speed increases, the control module signals the actuator valve spool to open gradually, diverting an increased amount af fluid, therefore providing lass power assist. At cruising speeds, maksimum power assist is supplied, providing better road feel.

Motor Blower of AC

2009-02-18T01:04:00.006+07:00

resistor block

An most cases, the blower motor moves air inside a vehicle for air conditioning, heating and defrosting. A blower switch(in dashboard) is used in conjunction swith resistor block to control fan speeds. The resistor block consists of two coil-wound wire resistors connected to terminals. These resistors drop the voltage and reduce the current to the motor, causing it to turn more slowly. The blower switchs directs current through one resistor to run the motor at low speed, through one resistor to run the motor at medium speed, and directly to the motor to run the motor at high speed.

Some computer-controlled blower motor system have eliminated the blower motor resistors. Instead of varying current through the motor with resistors, the current is pulsed trhough the motor. The speed of the motor is hanged by veryingthe amount of ON time as compared with OFF time. This has the same effect as using a resistor to change the current through the motor. This type of control is easy for computers to perform and reduces current draw on alternator due the ON-OFF pulse instead of continous current flow

CHECKING THE ECU CODES

2009-01-02T12:47:00.009+07:00

If your CEL has illuminated, it is more helpful to know WHY it has lit up instead of just guessing at the problem... How do you find out what the error is? Well you will need a short peice of wire or a paperclip.

On the passenger side of your car, under the dash beneath the glove box, you will find a green cover above the kickpanel that houses a blue connector that has two wires.

That you need to do is turn the ignition off, and using the piece of wire or paperclip, jump the blue connector so that you connect the two wires together. Basically stick one end of the paperclip or peice of wire into one prong on the connector and stick the other end of the paperclip or wire into the other prong.

Once you have done this, turn the key to the IGN position and watch your CEL light. It will illuminate in a series of flashes.

You will notice that there will be LONG flashes and SHORT flashes. All of the ECU trouble codes are two-digits. LONG flashes determine the TENS digit by the number of times it flashes, and SHORT flashes determine the ONES digit by the number of times it flashes.

...is the trouble code: 34

3 LONG flashes followed by 4 short flashes, then a long pause. If that is the only code the ECU is throwing, then the code will simply repeat until you remove the key. If, however there are more than one ECU error code, then you will see a different series of flashes followed by the long pause. Once all the ECU codes have been displayed, they will continuously cycle until you remove the key.

...is the trouble code: 21 and 43

Once you have determined the codes, you can simply remove the paperclip or wire from the connector and replace it back in the green housing.

So now you have the codes, what good are the numbers? What do they mean? Refer to the CEL TROUBLE CODES section.

OBD II DTCs ( HONDA)

2009-01-02T12:45:00.009+07:00

Table Diacnostic trouble code (DTC)>> DTC.pdf

CODE	VEHICLE	DEFINITION
1	86-98 Civic 97-98 CRV 85-98 Prelude 94+ Integra	Oxygen Sensor "A" (Primary) defective circuit or unplugged / defective sensor
2	86-87 Civic	Oxygen Sensor "B" defective circuit or unplugged / defective sensor
3	86-98 Civic 97-98 CRV 85-98 Prelude 94+ Integra	MAP Sensor (Manifold Absolute Pressure) defective circuit or unplugged / defective sensor
4	88-98 Civic 97-98 CRV 85-98 Prelude 94+ Integra	CKP Sensor (Crankshaft Position Sensor) defective circuit or unplugged / defective sensor
5	86-98 Civic* 97-98 CRV 85-98 Prelude 94+ Integra	MAP Sensor (Manifold Absolute Pressure) mechanical problem / disconnected piping * not 94-95
6	86-98 Civic 97-98 CRV 85-98 Prelude 94+ Integra	ECT Sensor (Engine Coolant Temperature) defective circuit or unplugged / defective sensor
7	86-98 Civic 97-98 CRV 85-98 Prelude 94+ Integra	TP Sensor (Throttle Position) defective circuit or unplugged / defective sensor
8	86-98 Civic 97-98 CRV 85-98 Prelude 94+ Integra	TDC Sensor (Top Dead Center) defective circuit or unplugged / defective sensor
9	86-98 Civic 97-98 CRV 85-98 Prelude 94+ Integra	CYP Sensor (Cylinder) defective circuit or unplugged / defective sensor * invalid code for throttle body injection Hondas ** invalid code for V6 engines
10	86-98 Civic 97-98 CRV 85-98 Prelude 94+ Integra	IAT Sensor (Intake Air Temperature) defective circuit or unplugged / defective sensor
12	86-98 Civic 85-98 Prelude 94+ Integra	EGR Lift Sensor (Exhaust Gas Recirculation) defective circuit or unplugged / defective sensor * invalid code for non-equipped EGR valve vehicles
13	86-98 Civic 97-98 CRV 85-98 Prelude 94+ Integra	BARO Sensor (Atmospheric Pressure) defective circuit or unplugged / defective sensor
14	88-98 Civic 97-98 CRV 88-98 Prelude 94+ Integra	IAC Valve (Idle Air Control) defective circuit or unplugged / defective sensor
15	88-95 Civic 88-95 Prelude 94+ Integra	Ignition Output Signal missing or defective ignition output signal
16	88-95 Civic 88-85 Prelude 94+ Integra	Fuel Injector System defective circuit or unplugged / defective fuel injector
17	88-98 Civic 97-98 CRV 88-98 Prelude 94+ Integra	VSS (Vehicle Speed Sensor) defective circuit or unplugged / defective sensor
19	88-95 Civic 94+ Integra	Automatic Transmission Lock Up Control Solenoid Valve defective circuit or unplugged / defective solenoid valve
20	88-98 Civic 97-98 CRV 92-98 Prelude 94+ Integra	Electrical Load Detector defective circuit or unplugged / defective sensor
21	92-95 Civic 93-95 Prelude 94+ Integra	VTEC Solenoid Valve defective circuit or unplugged / defective solenoid valve * invalid code for non-VTEC engine ** invalid for V6 engine
22	92-98 Civic 93-98 Prelude 94+ Integra	VTEC Oil Pressure Switch defective circuit or unplugged / defective oil pressure switch * invalid code for non-VTEC engine
23	96-98 Civic 92-98 Prelude 94+ Integra	KS (Knock Sensor) defective circuit or unplugged / defective sensor * invalid code for V6 engine
30	92-98 Prelude 94+ Integra	Automatic Transmission Signal: "A" / SEAF / SEFA / TMA or TMB defective circuit or unplugged / defective sensor * invalid code for 1996
31	92-95 Prelude	Automatic Transmission Signal "B" defective circuit or unplugged / defective sensor
41	92-98 Civic 97-98 CRV 90-98 Prelude 94+ Integra	Primary Oxygen Sensor - Heater circuit malfunction
43	92-95 Civic 90-95 Prelude 94+ Integra	Fuel Supply System defective or malfunctioning fuel supply system
45	96-98 Civic 97-98 CRV 96-98 Prelude 94+ Integra	System Too Lean or Too Rich malfunction in the fuel monitoring systems
48	92-98 Civic 94+ Integra	LAF Sensor (Lean Air Fuel) defective circuit or unplugged / defective sensor
54	96-98 Civic 97-98 CRV 94+ Integra	CKF Sensor (Crankshaft Speed Fluctuation) defective circuit or unplugged / defective sensor
61	96-98 Civic 97-98 CRV 96-98 Prelude 94+ Integra	Oxygen Sensor, Heated - Sensor 1 (Primary) high voltage, low voltage, or slow response
63	96-98 Civic 97-98 CRV 96-98 Prelude 94+ Integra	Oxygen Sensor, Heated - Sensor 2 (Secondary) high voltage, low voltage, or slow response
65	96-98 Civic 97-98 CRV96-98 Prelude 94+ Integra	Oxygen Sensor Heater (Secondary) malfunctioning or defective oxygen sensor heater
67	96-98 Civic 97-98 CRV 96-98 Prelude 94+ Integra	Catalyst system Efficiency Below Threshold malfunctioning or defective catalyst system
70	96-98 Civic 97-98 CRV 96-98 Prelude 94+ Integra	Automatic Transmission malfunction with the automatic transmission controls
71	96-98 Civic 97-98 CRV 96-98 Prelude 94+ Integra	Cylinder 1 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire
72	96-98 Civic 97-98 CRV 96-98 Prelude 94+ Integra	Cylinder 2 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire
73	96-98 Civic 97-98 CRV 96-98 Prelude 94+ Integra	Cylinder 3 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire
74	96-98 Civic 97-98 CRV 96-98 Prelude 94+ Integra	Cylinder 4 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire
80	96-98 Civic 96-98 Prelude 94+ Integra	Exhaust Gas Recirculation insufficient flow detected
86	96-98 Civic 97-98 CRV 96-98 Prelude 94+ Integra	ECT Sensor (Engine Coolant Temperature) circuit range / performance problem
90	96-98 Civic 97-98 Prelude 94+ Integra	Evaporative Emission Control System leak detected in the fuel tank area
91	96-98 Civic 97-98 Prelude 94+ Integra	Fuel Tank Pressure Sensor low input
92	96-98 Civic 97-98 CRV 96-98 Prelude 94+ Integra	Evaporative Emission Control System insufficient purge flow

ECU Pin Out (HONDA)

2009-01-02T12:26:00.010+07:00

OBD1->OBD0 - Function
A01 ->A01 - #1 injector
A02 ->A07 - #4 injector
A03 ->A03 - #2 injector
A04 ->N/C - VTEC solenoid Valve
A05 ->A05 - #3 injector
A06 ->N/C - O2 Sensor Heater Control
A07 ->A12&A14 - Fuel Pump Relay (FLR1)
A08 ->N/C - Fuel Pump Relay (FLR2)
A09 ->A11 - EACV
A10 ->N/C - EGR solenoid valve
A11 ->N/C -
A12 ->N/C -
A13 ->B06 - Check Engine Light (MIL)
A14 ->N/C -
A15 ->B01 - A/C Clutch Relay
A16 ->N/C -
A17 ->N/C -
A18 ->N/C -
A19 ->N/C -
A20 ->B02 - Purge Control Solenoid Valve
A21 ->B15&B17 - Igniter Power Source (IGP1)
A22 ->N/C - Igniter Power Source (IGP2)
A23 ->A02 - Power Ground (PG1)
A24 ->A04 - Power Ground (PG2)

A25 ->A13 - Main Relay IGP1 (IG Power)
A26 ->A18 - Logic Ground (LG1)
A27 ->N/C -
B01 ->A15 - Power Source (IGP2)
B02 ->A16 - Logic Ground (LG2)
B03 ->N/C -
B04 ->N/C - Service Check Connector
B05 ->B08 - A/C Switch (ACS)
B06 ->N/C -
B07 ->N/C -
B08 ->N/C - P/S Pressure Switch
B09 ->B13 - Starter Switch Signal (STS)
B10 ->B16 - Speed Sensor
B11 ->C01 - CYL Sensor
B12 ->C02 - CYL Sensor
B13 ->C03 - TDC Sensor
B14 ->C04 - TDC Sensor
B15 ->B10 - Crank Angle Sensor
B16 ->B12 - Crank Sensor
D01 ->A17 - Back Up Fuse
D02 ->N/C - Brake Switch
D03 ->N/C - Knock Sensor
D04 ->N/C- Service Check & Ignition Timing Connector (SCS)
D05 ->N/C -
D06 ->N/C - VTEC Pressure Switch
D07 ->N/C - Data Link Connector
D08 ->N/C -
D09 ->B14 - Alternator
D10 ->B19 -
D11 ->C07 - Throttle Position Sensor (TPS)
D12 ->N/C -
D13 ->C06 - TW Sensor
D14 ->C16 - O2 Sensor
D15 ->C05 - Intake Air Temperature Sensor
D16 ->N/C -
D17 ->C11 - MAP Sensor
D18 ->N/C -
D19 ->C15 - Sensor Voltage (VCC1)
D20 ->C13 - Sensor Voltage (VCC2)
D21 ->C14 - Sensor Ground (SG1)
D22 ->C12 - Sensor Ground (SG2)
you have to short pin D04 to GND in order to check your CEL codes. btw, this harness has produced no codes in my car, other than the one i was getting before i even installed it.

OBD 0

Pinout	'88 HF/Si	'90-1 DX (Std.)	'90-1 HF/Si	'89-92 EF8/9 SiR
A1	No.1 INJ	Aux INJ w/A3	No.1 INJ	No.1 INJ
A2	GRD w/A4 to Main Relay	GRD w/A4 to Main Relay	GRD w/A4 to Main Relay	GRD w/A4 to Main Relay
A3	No.2 INJ	Aux INJ w/A1	No.2 INJ	No.2 INJ
A4	GRD w/A2 to Main Relay	GRD w/A2 to Main Relay	GRD w/A2 to Main Relay	GRD w/A2 to Main Relay
A5	No.3 INJ	Main INJ w/A7	No.3 INJ	No.3 INJ
A6	Purge Cut-Off Solenoid Valve	Purge Cut-Off Solenoid Valve	Purge Cut-Off Solenoid Valve (HF Only)	Purge Cut-Off Solenoid Valve
A7	No.4 INJ	Main INJ w/A5	No.4 INJ	No.4 INJ
A8	Lock-up Control Solenoid Valve	Lock-up Control Solenoid Valve	Lock-up Control Solenoid Valve	Spool (VTEC) Solenoid Valve
A9	-	-	-	-
A10	-	EGR Valve (CA A/T Only)	EGR Valve (HF Only)	Pressure Regulator Cut-Off Solenoid Valve
A11	EACV w/A17	EACV w/A17	EACV w/A17	EACV
A12	Main Relay w/A14	Main Relay w/A14	Main Relay w/A14	Main Relay w/A14
A13	Main Relay w/A15	Main Relay w/A15	Main Relay w/A15	Main Relay w/A15
A14	Main Relay w/A12	Main Relay w/A12	Main Relay w/A12	Main Relay w/A12
A15	Main Relay w/A13	Main Relay w/A13	Main Relay w/A13	Main Relay w/A13
A16	GRD w/A18	GRD w/A18	GRD w/A18	GRD w/A18
A17	EACV w/A11	-	-	-
A18	GRD w/A16	GRD w/A16	GRD w/A16	GRD w/A16
B1	Hazard Fuse w/Brake Switch	Hazard Fuse w/Brake Switch	-	Hazard Fuse w/Brake Switch
B2	Tandem Valve Control Solenoid Valve	Tandem Valve Control Solenoid Valve	-	-
B3	A/C Clutch Relay	A/C Clutch Relay	Fast Idle Valve	A/C Clutch Relay
B4	Radiator Fan Relay	Radiator Fan Relay	Radiator Fan Relay	-
B5	Alternator	Alternator	Alternator	Oil Pressure Switch
B6	Check Engine Light	Check Engine Light	Check Engine Light	Check Engine Light(10A)
B7	Shift Position Sensor (A/T Only)	Shift Position Sensor (A/T Only)	A/C Switch w/B8	-
B8	A/C Switch	A/C Switch	A/C Switch w/B7	A/C Switch
B9	-	-	-	Brake Switch
B10	-	-	Crank Angle Sensor	Crank Angle Sensor
B11	Shift Position Sensor (AT Only)	Shift Position Sensor (AT Only)	Clutch Switch (HF Only)	Rear Defogger Switch
B12	-	-	Crank Angle Sensor	Crank Angle Sensor
B13	No.2 Fuse (10A)	No.2 Fuse (10A)	No.2 Fuse (10A)	No.2 Fuse (10A)
B14	Alternator	Alternator	Alternator	Alternator
B15	Igniter Unit w/B17	Igniter Unit w/B17	Igniter Unit w/B17	Igniter Unit w/B17
B16	Speed Sensor	Speed Sensor	Speed Sensor	Speed Sensor (Electrical)
B17	Igniter Unit w/B15	Igniter Unit w/B15	Igniter Unit w/B15	Igniter Unit w/B15
B18	-	-	-	-
B19	ELD	ELD	ELD	Knock Sensor
B20	Ign. Timing Adj. Connector	Ign. Timing Adj. Connector	Ign. Timing Adj. Connector	Ign. Timing Adj. Connector
C1	Crank Angle Sensor	Crank Angle Sensor	Cylinder Position Sensor	Cylinder Position Sensor
C2	Crank Angle Sensor	Crank Angle Sensor	Cylinder Position Sensor	Cylinder Position Sensor
C3	TDC Sensor	TDC Sensor	TDC Sensor	TDC Sensor
C4	TDC Sensor	TDC Sensor	TDC Sensor	TDC Sensor
C5	TA Sensor	TA Sensor	TA Sensor	TA Sensor
C6	TW Sensor	TW Sensor	TW Sensor	TW Sensor
C7	Throttle Angle Sensor	Throttle Angle Sensor	Throttle Angle Sensor	Throttle Angle Sensor
C8	-	EGR Valve Lift Sensor (CA A/T Only)	-	O2 Sensor B
C9	PA Sensor	PA Sensor	PA Sensor	P/S oil switch
C10	Brake Switch	Brake Switch	Brake and Reverse Light Switch (HF Only)	Brake Switch
C11	MAP Sensor	MAP Sensor	MAP Sensor	MAP Sensor
C12	PA Sensor	PA Sensor	Throttle Angle Sensor	Throttle Angle Sensor
C13	PA Sensor	PA Sensor	Throttle Angle Sensor	Throttle Angle Sensor
C14	MAP Sensor	MAP Sensor	MAP Sensor	MAP Sensor
C15	MAP Sensor	MAP Sensor	MAP Sensor	MAP Sensor
C16	O2 Sensor A	O2 Sensor A	O2 Sensor A	O2 Sensor A

OBD 1 and 2

OBD2a	OBD2b	Function	OBD1	Color	Notes
A01	B05	Injector 4	A02	Yellow
A02	B04	Injector 3	A05	Light Blue
A03	B03	Injector 2	A03	Red
A04	B11	Injector 1	A01	Brown
A05	A08	SO2H			No connection on OBD1
A06	C01	PO2H	A06	Orange/black
A08	B12	VTS	A04	Orange/White
A09	B20	LG1	A26	Black/Red
A10	B02	PG1	A23	Black
A11	B01	IGP1	A25	Yellow/Black
A12	B23	IACV	A09	Green/White
A15	A06	PCS	A20	Red
A16	A16	FLR	A07	Green/Yellow
A17	A17	ACC	A15	Black/Red
A18	A18	MIL	A13	Green/Orange
A19	A02	ALTC	A16	White/Yellow	No connection on D16Y8 P2Nb
A20	B13	ICM	A21	Red/Green
A22	B22	LG2	B02	Brown
A23	B10	PG2	A24	Black
A24	B09	ICP2	B01	Yellow Black
A27	A20	FANC	A12	Yellow/Green
C01	C31	CKFP			No connection on OBD1
C02	C08	CKPP	B15	Blue/Green
C03	C20	TDCP	B13	Orange/Blue
C04	C29	CYPP	B11	Orange
C05	A27	ACS	B05	Blue/Red
C06	A24	STS	B09	Blue/White
C07	A10	SCS	D04	Brown
C10	B21	VBU	D01	White/Blue
C11	C22	CKFM			No connection on OBD1
C12	C09	CKPM	B16	Blue/Yellow
C13	C21	TDCM	B14	White/Blue
C14	C30	CYPM	B12	White
C15	C10	VTM	D06	Orange/Green	Connected to VTS on OBD2a
C16	A26	PSW	B08	Brown/Red
C17	C05	ALTF	D09	Pink	No connection on D16Y8 P2Nb
C18	C23	VSS	B10	Yellow/Blue
D01	C27	TPS	D11	Pink/Black
D02	C26	ECT	D13	Red/White
D03	C17	MAP	D17	Pink/White
D04	C19	VCC1	D19	Yellow/Green
D05	A32	BKSM	D02	Greem/White
D06	C03	KS	D03	Red/Green	No connection on P08, P28
D07	C16	PO2S	D14	White
D08	C25	IAT	D15
D10	C28	VCC2	D20	Yellow/White
D11	C18	SG2	D22	Green/White
D12	C07	SG1	D21	Green/Blue
D14	A23	SO2S			No connection on OBD1
D16	A30	EL	D10	Green/Red	No connection on D16Y8 P2Nb

Information Source: www.hondaswap.com

Civic Electrical Connections(1998-1999)

2009-01-02T12:15:00.007+07:00

the Schematic of civic electrical connection

ECU Input Sensors

2009-01-02T04:22:00.005+07:00

Mass Air Flow Sensor (MAF)
The mass airflow sensor is placed in the stream of intake air. It measures the intake flow rate by measuring a part of the entire intake flow. It consists of a hot wire that is supplied with electric current from the ECM. The temperature of the hot wire is controlled by the ECM a certain amount. The heat generated by the hot wire is reduced as the intake air flows around it. The more air, the greater the heat loss. Therefore, the ECM must supply more electric current to maintain the temperature of the hot wire as airflow increases. The ECM detects the airflow by means of this current change.
Intake Air Temperature sensor (IAT)
The intake air temperature sensor is mounted to the air duct housing. The sensor detects intake air temperature and transmits a signal to the ECM.
The temperature-sensing unit uses a thermistor that is sensitive to the change in temperature. Electrical resistance of the thermistor decreases in response to the temperature rise.

Camshaft (or Crankshaft) Position Sensor (CPS)
The camshaft position sensor monitors engine speed and piston position. These input signals to the ECM are used to control fuel injection, ignition timing and other functions. The camshaft position sensor has a rotor plate and a wave-forming circuit. The rotor plate has 360 slits for a 1°(POS) signal and 6 slits for a 120°(REF) signal. The wave-forming circuit consists of Light Emitting Diodes (LED) and photo diodes. The rotor plate is positioned between the LED and the photo diode. The LED transmits light to the photo diode. As the rotor plate turns, the slits cut the light to generate rough-shaped pulses. These pulses are converted into on-off signals by the wave-forming circuit and sent to the ECM.

Coolant Temperature Sensor (CTS)
The engine coolant temperature sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the ECM. The modified signal returns to the ECM as the engine coolant temperature input. The sensor uses a thermistor that is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.

Knock Sensor
The knock sensor is attached to the cylinder block. It senses engine knocking using a piezoelectric element. A knocking vibration from the cylinder block is sensed as vibrational pressure. This pressure is converted into a voltage signal and sent to the ECM.

Heated Oxygen Sensor (HO2S)
The HO2S is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared to the outside air. The sensor has a closed-end tube made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. The sensor signal is sent to the ECM. The ECM adjusts the injection pulse duration to achieve the ideal air-fuel ratio. The ideal air-fuel ratio occurs near the radical change from 1V to 0V.

Throttle Position Sensor (TPS)
The throttle position sensor responds to the accelerator pedal movement. This sensor is a kind of potentiometer that transforms the throttle position into output voltage, and emits the voltage signal to the ECM.

In addition, the sensor detects the opening and closing speed of the throttle valve and feeds the voltage signal to the ECM.

The ECM receiving the signal from the throttle position sensor determines idle position of the throttle valve. This sensor controls engine operation such as fuel cut. On the other hand, the "Wide open and closed throttle position switch", which is built into the throttle position sensor unit, is not used for engine control.

Vehicle Speed Sensor (VSS)
The vehicle speed sensor is installed in the transaxle. It contains a pulse generator that provides a vehicle speed signal to the speedometer. The speedometer then sends a signal to the ECM.

Power Steering Pressure Switch (PSPS)
The power steering oil pressure switch is attached to the power steering high-pressure tube and detects a power steering load. When a power steering load is detected, it signals the ECM. The ECM adjusts the idle speed for the increased load.

Manifold Absolute Pressure (MAP)
The Manifold Absolute Pressure sensor measures changes in the intake manifold pressure resulting from engine load and speed changes. The computer sends a 5-volt reference signal to the MAP sensor.

As pressure changes in the intake manifold occur, the electrical resistance of the MAP sensor also changes. By monitoring the sensor output voltage, the computer can determine the manifold absolute pressure.

The higher the MAP voltage output the lower the engine vacuum, which requires more fuel. The lower the MAP voltage output the higher the engine vacuum, which requires less fuel. Under certain conditions, the MAP sensor is also used to measure barometric pressure. This allows the computer to automatically adjust for different altitudes. The computer uses the MAP sensor to control fuel delivery and ignition timing.

Cranking Signal
The control module uses this signal to tell when the vehicle is in the STARTING mode. This information is used to allow enrichment and cancel diagnostics while engine is cranking.

Mitsubishi Trouble Code

2009-01-02T04:15:00.006+07:00

96 & later are OBD2 systems and require a scanner.
Accessing Diagnostic Trouble Codes

* Turn ignition switch to OFF position
* Locate Data Link Connector (DLC), next to fuse box.
* Connect voltmeter positive lead to DLC terminal #1 and Negative lead to terminal #12 (ground).
* Turn Ignition switch to ON position.
* codes are read out by 12 volt pulses of voltmeter.
* A constant repetition of short pulses is normal.
* Signals will appear on voltmeter a long and short 12 volt pulses.
* long pulses represent tens
* short pulses represent ones (4 long pulses and 3 short pulses indicates code 43)

1. Ground Data Link Connector terminal # 1.
2.Set the ignition switch to "ON", the Malfunction Indicator (check engine) Lamp will illuminate for a particular duration and a certain number of times.
3.Clear the trouble codes by disconnecting the vehicle battery negative terminal for 16 seconds or longer

EXAMPLES
No Codes--normal

*The Lamp will illuminate for 0.5 seconds, then stay Off for 0.5 seconds, this pattern will repeat until the ignition is turned OFF.

Code 13

*The Lamp will illuminate one time for approximately 0.5 second. This will represent one unit of ten. There will be approximately a one second delay and then the Lamp will illuminate three times for approximately 0.2 seconds with 0.2 second delay between deflections. This will represent three units of one.

Code 23

*The Lamp will illuminate two times for approximately 0.5 second with approximately 0.3 second delay between deflections. This will represent two units of ten. There will be approximately a one second delay and then the Lamp will illuminate three times for approximately 0.2 seconds with 0.2 second delay between deflections. This will represent three units of one..

Clearing Trouble Codes

Diagnostic trouble codes may be cleared by disconnecting the battery ground cable for at least 20 seconds. Reconnect negative battery cable and recheck codes to confirm the repair.

Diagnostic Codes
Mitsubishi
Without OBD-II
11 Oxygen sensor fault.
12 Airflow sensor fault.
13 Intake air temp sensor fault.
14 Throttle position sensor (TPS) fault.
15 Idle speed control (ISC) motor position sensor fault.
21 Coolant temp sensor fault.
22 Crankshaft position (CKP) sesnor fault.
23 Camshaft position (CMP) sensor fault.
24 Vehicle speed sensor (VSS) fault.
25 Barometric (BARO) pressure sensor fault.
31 Knock sensor fault.
32 MAP sensor faulty.
36 Ignition timing adjustment signal fault.
39 Oxygen (O2) sensor fault.
41 Injector(s) fault
42 Fuel pump fault.
43 EGR fault.
44 Ignition coil (cylinders #1 & #4) fault.
52 Ignition coil (cylinders #2 & #5) fault.
53 Ignition coil (cylinders #3 & #6) fault.
55 Idle air control (IAC) valve position sensor fault.
59 Rear Oxygen (O2) sesnor fault.
61 Transaxle control module torque reduction signal fault.
62 Variable Induction control (VIC) valve position sensor fault.
71 Traction control (TC) vacuum valve solenoid fault.
72 Traction Control (TC) vent valve solenoid fault.

ECI
Voltmeter or Test Light
1 Oxygen Sensor.
2 Ignition Signal.
3 Air Flow Sensor.
4 Pressure Sensor.
5 Throttle Position Sensor.
6 Idle Speed Control Motor Position Switch.
7 Engine Coolant Temperature Sensor.

MPFI
86-88 4 Cyl.
Voltmeter or Test Light
10000 Oxygen Sensor.
01000 Crank Angle Sensor.
11000 Air Flow Sensor.
00100 Atmospheric Pressure Sensor.
10100 Throttle Position Sensor.
01100 Motor Position Sensor.
11100 Engine Coolant Temperature Sensor.
00010 No. 1 Cylinder TDC Sensor.

MPFI
V6 and 89-95 4 Cyl, Voltmeter or Test Light
11 Oxygen Sensor.
12 Air Flow Sensor.
13 Intake Air Temperature Sensor.
14 Throttle Position Sensor.
15 Motor Position Sensor.
21 Engine Coolant Temperature Sensor.
22 Crank Angle Sensor.
23 TDC/CMP Sensor.
24 Vehicle Speed Sensor.
26 BARO Sensor.
31 Knock Sensor.
32 Manifold Absolute Pressure Sensor.
36 Ignition Timing Adjustment Signal.
39 Oxygen Sensor.
41 Injector.
42 Fuel Pump.
43 EGR.
44 Ignition Coil, 4 Cylinder.
44 Ignition Coil Power Transistor Unit, V6 Cylinders 1 & 4.
52 Ignition Coil Power Transistor Unit, V6 Cylinders 2 & 5.
53 Ignition Coil Power Transistor Unit, V6 Cylinders 3 & 6.
55 Idle Air Control Valve/Servo Valve Position Sensor.
59 Oxygen Sensor (Rear), 4 Cylinder.
59 Left hand Bank Heated Oxygen Sensor, V6.
61 Cable from Transaxle Control Unit, For Transmission
61 Torque Reduction Signal (A/T).
62 Induction Control Valve Position Sensor (Non Turbo).
69 Right hand Bank Heated Oxygen Sensor.
71 Traction Control Vacuum Solenoid.
72 Traction Control Ventilation Solenoid.

1. Cycle the ignition key On-Off-On-Off-On within 5 seconds.
2. Count the number of times the malfunction indicator lamp (check engine lamp) on the instrument panel flashes on and off. The number of flashes represents the trouble code. There is a slight pause between the flashes representing the first and second digits of the code. Longer pauses (approx. 4 seconds) separate individual trouble codes.
3. Repair the malfunction while referring to the inspection chart for diagnostic trouble codes.
4. After disconnecting the battery cable from the battery (-) terminal for 10 seconds or more, reconnect the cable.
5. Start the engine and run it at idle for about 15 minutes after the engine has warmed up.

MPFI
95-98 Eclipse (Non-Turbo)
Check Engine/Light Scan Tool
11 Intermittent Loss Of Crankshaft Position Sensor.
11 Misfire Adaptive Numerator at Limit.
11 No Crankshaft Reference Signal at PCM.
11 Timing Belt Skipped 1 Tooth or More.
13 No Change In Manifold Absolute Pressure (MAP) From Start To Run.
14 5-Volt Supply Output Too Low.
14 Manifold Absolute Pressure (MAP) Sensor Voltage Too High.
14 Manifold Absolute Pressure (MAP) Sensor Voltage Too Low.
14 No 5 Volts To Manifold Absolute Pressure (MAP) Sensor.
15 No Vehicle Speed Sensor Signal.
16 Knock Sensor No. 1 Circuit.
17 Closed Loop Temperature Not Reached.
17 Engine Is Cold Too Long.
21 Downstream Heated Oxygen Sensor Heater Failure.
21 Downstream Heated Oxygen Sensor Shorted To Voltage.
21 Downstream Heated Oxygen Sensor Stays at Center.
21 Downstream Heated Oxygen Sensor Stays at Center.
21 Downstream Heated Oxygen Sensor Voltage Grounded.
21 Slow Upstream Heated Oxygen Sensor Circuit during Catalyst Monitor.
21 Upstream Heated Oxygen Sensor Heater Failure.
21 Upstream Heated Oxygen Sensor Response.
21 Upstream Heated Oxygen Sensor Shorted To B+.
21 Upstream Heated Oxygen Sensor Stays at Center.
21 Upstream Heated Oxygen Sensor Voltage Grounded.
22 Engine Coolant Temperature Sensor Voltage High.
22 Engine Coolant Temperature Sensor Voltage Low.
23 Intake Air Temperature Sensor Voltage High.
23 Intake Air Temperature Sensor Voltage Low.
24 No 5 Volts To Throttle Position Sensor.
24 Throttle Position Sensor Voltage Disagrees With Manifold Absolute Pressure.
24 Throttle Position Sensor Voltage High.
24 Throttle Position Sensor Voltage Low.
25 Idle Air Control Motor Circuits.
25 Target Idle Not Reached (plus or minus 200 RPM).
27 Injector No. 1 Control Circuit.
27 Injector No. 2 Control Circuit.
27 Injector No. 3 Control Circuit.
27 Injector No. 4 Control Circuit.
31 EVAP Leak Monitor Pinched Hose found.
31 EVAP Purge Flow Monitor Failure.
31 EVAP Solenoid Circuit.
31 EVAP Solenoid Switch or Mechanical Fault.
31 EVAP System Large Leak.
31 EVAP System Small Leak.
31 EVAP Vent Solenoid Circuit.
31 Engine Coolant Temp sensor voltage too high.
32 EGR Solenoid Circuit.
32 EGR System Failure.
33 A/C Clutch Relay Circuit.
35 High Speed Fan Control Relay Circuit.
35 High Speed Radiator Fan Relay Circuit.
35 Low Speed Fan Control Relay Circuit.
36 PAIR Solenoid Circuit - M/T.
36 Too Little or Too Much Secondary Air.
37 Park/Neutral Position Switch Failure.
41 Alternator Field Not Switching Properly.
42 Fuel Level Sensing Unit Voltage Too High.
42 Fuel Level Sensing Unit Voltage Too Low.
42 Fuel Level Unit No Change Over Miles.
42 Fuel Pump Relay Control Circuit.
42 MFI (ASID) Relay Control Circuit.
42 No MFI (ASD) Relay Output Voltage at PCM.
43 Cylinder No. 1 Misfire.
43 Cylinder No. 2 Misfire.
43 Cylinder No. 3 Misfire.
43 Cylinder No. 4 Misfire.
43 Ignition Coil No. 1 Primary Circuit.
43 Ignition Coil No. 2 Primary Circuit.
43 Multiple Cylinder Misfire.
44 Battery Temperature Sensor Voltage Too High.
44 Battery Temperature Sensor Voltage Too Low.
44 Battery Temperature Voltage out of limit.
45 EATX Controller Trouble Code Present.
46 Charging System Voltage Too High.
47 Charging System Voltage Too Low.
51 Fuel System Lean.
52 Fuel System Rich.
53 Internal Controller Failure.
53 PCM Failure - Serial Peripheral Interface Communications.
54 No Cam Signal at PCM.
61 BARO Pressure Out Of Range.
62 PCM Failure - Service Reminder Indicator Mile Not Stored.
63 PCM Failure - EEPROM Write Denied.
64 Catalytic Converter Efficiency Failure.
65 Power Steering Pressure Switch Failure.
66 No CCD Messages From TCM - A/T.

Subaru Trouble Code Info

2009-01-02T04:08:00.005+07:00

Subaru Trouble Code Info
Retrieving Trouble Codes
96 & later are OBD2 systems

There are self-diagnositic connectors on all models, when connected with the key ON (engine off), flash trouble codes on the LED light of the oxygen moniter of the ECU.

Images used with permission Copyright 2001 ALLDATA LLC.

* The connectors are under the steering wheel, to the left of the module on most models.
* On carberated and SPFI injected 89 models,the test connectors are located on the engine side/driver's side of the firewall.
* Imprenza models have the ECU and test connectors located behind the right side of the dash, instead of the left.
* On SVX models the connectors are located behind the driver's side kick panel.

Test Modes

o With neither test connector connected and the key ON(not running), the codes will display codes related to starting and driving.
o With only the "Read Memory" connector connected, historic codes will be displayed.
o With only the "Test Mode" connector connected, a technician can perform dynamic tests.
o The last mode is for clearing codes.(See Clearing Codes)
Reading Trouble Codes

The codes are displayed as pulses of the LED mounted on the module. Long pulses (1.2 seconds) indicate tens and the short pulses (.2 seconds) indicate ones. Pulses are seperated by .3 second puses and codes are seperated by 1.8 second pauses. NOTE:on 89 MPFI models, the Oxygen Moniter light and ECU are mounted under the rear package shelf and are only accessible from the trunk.
On some later models the Check engine lamp and O2 monitor lamp flash the code(s) corresponding to the faulty part. The long segment (1.2 sec on) indicates a "ten", and the short segment (0.2 sec on) signifies a "one".

* 90 models - Trouble codes on the Justy are viewed on the Oxygen Moniter light, all other models the codes can be viewed on either the Oxygen Moniter light or the MIL (check engine light).
* 95 Imprenza and Legacy models have OBD2 systems and require a scanner,but some basic codes can be retreived using the flashing MIL method.

Clearing Codes

Codes will only clear when the faulty system or circuit has been repaired. After making the repairs, codes can be cleared by connecting 2 pairs of connectors, the "Self-diagnostic" connectors and the "Read Memory" connectors that are usually to the right of the diagnostic connectors.

* Start with a warmed up engine
* Turn off the engine
* Connect both pairs of connectors
* Fianlly start the engine
* This should clear the codes.

Trouble Codes
83 - 88 Subaru carb models
11 Ignition pulse system/crank angle sensor(87 & later)
12 Ignition pulse system (1983 only)/Starter switch (84 & later)
13 Crank angle sensor or circuit
14 Vacuum switches stay on or off (1983 only)/Duty solenoid or circuit(1983 to 1985)/Injectors 1 & 2 (87-up)
15 Solenoid valve stays on or off (1983 only)/Coasting Fuel Cut (CFC) system (1983 to 1985 )
16 Feedback system (1983 to 1985 models)
17 Fuel pump and automatic choke (1983 to 1985 carbureted)
21 Ignition pulse system (1983 only)/coolant temperature sensor or circuit (1983 to 1985 carbureted)
22 Ignition pulse system (1983 only)/Vehicle speed sensor or circuit or VLC solenoid valve or circuit. (1984 to 1988 carbureted)
23 Oxygen sensor or circuit (1983 to 1988)/pressure sensor or circuit (1983 to 1985)
24 Vacuum switches stay on or off (1983 only)/coolant temperature sensor or circuit, or Idle-up solenoid or circuit (1984 to 1988 carbureted)
25 Manifold vacuum sensor or circuit/coolant temperature sensor or circuit on 1984 models)/float chamber vent solenoid valve or circuit (1983 to 1985)
32 Coolant temperature sensor or circuit (1983)/Oxygen sensor or circuit (1984 to 1988)
33 Main system in feedback (1983 to 1988)/Vehicle speed sensor or circuit (1983 to 1985)
34 Choke power stays on or off (1983)/EGR system solenoid or circuit (1883 to 1988)
35 Canister purge solenoid or circuit (1983 to 1985)
41 Vacuum switches stay on or off (1983 only)/Feedback system (California models 1983 to 1985)
42 Vacuum switches stay on or off (1983 only)/clutch switch or circuit (1983 to 1988)
43 Choke power stays on or off (1983)
46 Radiator fan control (1983 to 1985)
52 Solenoid valve control system or clutch switch
53 Fuel pump circuit or Altitude compensator switch
54 Choke control system
55 Upshift control or EGR sensor
56 EGR system
62 Exhaust Gas Recirculation (EGR) solenoid valve control or Idle-up system
63 Canister solenoid valve or circuit/Idle-up system
64 Vacuum line control valve or circuit
65 Float chamber vent control valve circuit
71 Ignition pulse system
73 Ignition pulse system
74 Ignition pulse system
84 - 86 Fuel Injected models
11 Ignition pulse
12 Starter switch off
13 Starter switch on
14 Airflow meter or circuit
15 Atmospheric pressure switch - fixed value
16 Crank angle sensor or circuit
17 Starter switch or circuit
21 Seized airflow meter flap
22 Pressure or vacuum switches - fixed value
23 Idle switch - fixed value
24 Wide open throttle switch - fixed value
25 Throttle sensor idle switch or circuit
31 Speed sensor or circuit
32 Oxygen sensor or circuit
33 Coolant sensor or circuit
34 Abnormal aspirated air thermosensor
35 Air flow meter/EGR solenoid switch or circuit
41 Atmospheric pressure sensor or circuit
42 Fuel injector - fixed value
43 KDLH control system
46 Neutral or parking switch or circuit
47 Fuel injector
53 Fuel pump or circuit
55 KDLH control system
57 Canister control system
58 Air control system
62 EGR control system
88 TBI control unit
87 Fuel Injected models
11 Ignition pulse/crank angle sensor
12 Starter switch or circuit
13 Crank angle sensor or circuit
14 Injectors 1 and 2
15 Injectors 3 and 4
21 Coolant temperature sensor or circuit
22 Knock sensor or circuit
23 Air flow meter or circuit
24 Air control
31 Throttle sensor or circuit
32 Oxygen sensor or circuit
33 Vehicle Speed Sensor (VSS) or circuit
34 EGR solenoid valve stuck on or off
35 Purge control solenoid or circuit
41 Lean fuel mixture indicated
42 Idle switch or circuit
45 Kick-down relay or circuit
51 Neutral switch or curcuit
61 Parking switch or circuit
88 and later models with Single-Point Fuel Injection
11 Crank angle sensor or circuit
12 Starter switch or circuit
13 Crank angle sensor or circuit
14 Fuel injector - abnormal output
21 Coolant temperature or circuit
23 Air flow meter or circuit
24 Air control valve or circuit
31 Throttle sensor or circuit
32 Oxygen sensor or circuit
33 Vehicle Speed Sensor or circuit
34 EGR solenoid or circuit
35 Purge control solenoid or circuit
42 Idle switch or circuit
45 Kick-down control relay or circuit
51 Neutral switch continuously in the on position
55 EGR temperature sensor or circuit
61 Parking switch or circuit
1988 and later models with Multi-Point Fuel Injection (including Legacy)
11 Crank angle sensor or circuit
12 Starter switch or circuit
13 Cam position sensor or circuit (TDC sensor on Justy)
14 Fuel injector no. 1 (Legacy, Impreza, Justy, SVX); Fuel injector 1 and 2 (XT, Loyale, GL, DL)
15 Fuel injector no. 2 (Legacy, Impreza, Justy, SVX); Fuel injector 3 and 4 (Loyale, GL, DL); Fuel injector 5 and 6 (XT6)
16 Fuel injector no. 3 (Legacy, Impreza, Justy, SVX); Fuel injector 3 and 4 (XT)
17 Fuel injector no. 4 (Legacy, Impreza, SVX); Fuel injector 1 and 2 (XT6)
18 Fuel injector no. 5 (SVX)
19 Fuel injector no. 6 (SVX)
21 Coolant temperature sensor or circuit
22 Knock sensor or circuit (right side on SVX)
23 Air flow meter or circuit (exc. Justy); Pressure sensor (Justy)
24 Air control valve or circuit (exc. Justy); Idle speed control solenoid valve (Justy)
25 Fuel Injector 3 and 4 (XT6)
26 Air temperature sensor (Justy)
28 Knock sensor no. 2 (SVX, left side)
29 Crank angle sensor (SVX, no. 2)
31 Throttle position sensor or circuit
32 Oxygen sensor or circuit (no. 1, right side on SVX)
33 Vehicle speed sensor (VSS) or circuit
34 EGR solenoid valve
35 Canister purge solenoid or circuit
36 Air suction solenoid valve (Impreza); Igniter circuit (Justy)
37 Oxygen sensor (no. 2, left side , SVX)
38 Engine torque control (SVX)
41 Air/fuel adaptive control
42 Idle switch or circuit
43 Throttle switch (Justy)
44 Wastegate duty solenoid (turbo)
45 Pressure duty solenoid (turbo)/atmospheric pressure sensor circuit (non-turbo)
49 Airflow sensor
51 Neutral switch (manual transmission)/inhibitor switch (automatic transmission)
52 Parking brake switch (exc. Justy)/Clutch switch (Justy)
55 EGR temperature sensor
56 EGR system
61 Parking brake switch (Loyale)/Fuel tank pressure control solenoid valve (Impreza)
62 Fuel temperature sensor (Impreza)/Electric load signal (Justy)
63 Fuel tank pressure sensor (Impreza)/Blower fan switch (Justy)
65 Vacuum pressure sensor
http://www.troublecodes.net

Diagnostic Codes Kia

2009-01-02T04:05:00.005+07:00

Accessing Diagnostic Trouble Codes
Models up to 95

When trouble occurs in the main input or output devices, check for the cause using the data link connector (DLC) and the malfunction indicator lamp located in the instrument cluster. Failures of each input and output device are indicated and retrieved from the engine control module (ECM) as diagnostic trouble codes.

* Locate DLC at top center of firewall and use jumper wire to connect ENG. TEST and ground terminals.
* On 1995 Sportage models, turn ignition to On, but do not start engine.
* On other models, start and warm engine, then run at 2,000 RPM for 3 minutes.
* Diagnostic trouble codes will be displayed as a series of long and short flashes on the malfunction indicator lamp (MIL).

Trouble Code Interpretation

The ECM indicates stored fault code by flashing the malfunction indicator/check engine lamp. Fault codes 1 through 9 are indicated by individual short blinks and fault codes 10 and above are indicated by long and short blinks. One long blink is equivalent to 10 short blinks. The fault code can be determined by adding the long and short blinks.

Clearing Trouble Codes

Diagnostic trouble codes may be cleared by disconnecting the battery ground cable for at least 20 seconds.

Diagnostic Codes Kia
Without Onboard Diagnostics (OBD-II)
2 Distributor no Signal.
3 Distributor G Signal.
7 Fault on SGT Signal.
8 Mass Air Flow Sensor.
9 Engine Coolant Temperature Sensor.
10 Intake Air Temperature Sensor.
12 Throttle Position Sensor.
14 Atmospheric Pressure Sensor.
15 Oxygen Sensor.
16 EGR Valve Position Sensor.
17 Feedback System.
18 Injector No. 1 open or short.
19 Injector No. 2 open or short.
20 Injector No. 3 open or short.
21 Injector No. 4 open or short.
24 Fuel Pump Relay open or short.
25 Pressure Regulator Control Solenoid Valve.
26 Purge Control Solenoid Valve.
28 Solenoid Valve (EGR) open or short.
34 Idle Speed Control Solenoid Valve.
35 Deteriorated Injector.
36 Deteriorated Air Flow Sensor.
37 Intake System Air Leakage.
41 Variable Inertia Charging System Solenoid Valve.
46 A/C Cut Relay open or short.
48 Power Stage Group 1 Malfunction (inside ECM). Injector 1-4 Purge Solenoid Valve, EGR Solenoid Valve or Damaged Power Stage.
49 Power Stage Group 2 Malfunction (inside ECM). Idle Speed Control Valve Failure or Damaged Power Stage.
56 Idle Speed Control Valve Closing Coil open or short.
57 A/C Compressor Input Signal short.
73 Vehicle Speed Sensor open or short.
87 Malfunction Indicator Lamp short Circuit.
88 ECM Data.
99 Battery.
OBD-II
P0100 Mass Air Flow or Volume Air Flow Circuit Malfunction.
P0101 Mass Air Flow or Volume Air Flow Circuit Range/Performance problem.
P0102 Mass Air Flow or Volume Air Flow Circuit Low Input.
P0103 Mass Air Flow or Volume Air Flow Circuit High Input.
P0107 MAP/BARO Circuit Low Input.
P0108 MAP/BARO Circuit High Input.
P0110 A/T Circuit Malfunction.
P0115 Engine Coolant Temperature Circuit Malfunction.
P0116 Engine Coolant Temperature Circuit Range/Performance Condition.
P0117 Engine Coolant Temperature Circuit Low Input.
P0118 Engine Coolant Temperature Circuit High Input.
P0120 Throttle Position Malfunction - Circuit A.
P0122 APP/TPP Sensor Switch Low Input - Circuit A.
P0123 APP/TPP Sensor Switch High Input - Circuit A.
P0125 Insufficient Coolant Temperature for Closed Loop Fuel Control.
P0130 Oxygen Sensor Circuit Malfunction - Bank 1 Sensor 1.
P0131 Oxygen Sensor Circuit Low Voltage - Bank 1 Sensor 1.
P0132 Oxygen Sensor Circuit High Voltage - Bank 1 Sensor 1.
P0133 Oxygen Sensor Circuit Slow Response - Bank 1 Sensor 1.
P0134 Oxygen Sensor Circuit No Activity detected - Bank 1 Sensor 1.
P0135 Oxygen Sensor Heater Circuit Malfunction - Bank 1 Sensor 1.
P0136 Oxygen Sensor Circuit Malfunction - Bank 1 Sensor 2.
P0137 Oxygen Sensor Circuit Low Voltage - Bank 1 Sensor 2.
P0138 Oxygen Sensor Circuit High Voltage - Bank 1 Sensor 2.
P0139 Oxygen Sensor Circuit Slow Response - Bank 1 Sensor 2.
P0140 Oxygen Sensor Circuit No Activity detected - Bank 1 Sensor 2.
P0141 Oxygen Sensor Heater Circuit Malfunction - Bank 1 Sensor 2.
P0170 Fuel Trim Malfunction - Bank 1.
P0171 System too Lean - Bank 1.
P0172 System too Rich - Bank 1.
P0261 Injector Circuit Low - Cyl. 1.
P0262 Injector Circuit High - Cyl. 1.
P0264 Injector Circuit Low - Cyl. 2.
P0265 Injector Circuit High - Cyl. 2.
P0267 Injector Circuit Low - Cyl. 3.
P0268 Injector Circuit High - Cyl. 3.
P0270 Injector Circuit Low - Cyl. 4.
P0271 Injector Circuit High - Cyl. 4.
P0300 Multiple/Random Misfire detected.
P0301 Misfire detected - Cyls. 1-4.
P0302 Misfire detected - Cyls. 1-4.
P0303 Misfire detected - Cyls. 1-4.
P0304 Misfire detected - Cyls. 1-4.
P0325 Knock Sensor Circuit Malfunction
P0326 Knock Sensor 1 Circuit Range/Performance - Bank 1 or Single Sensor.
P0335 Crankshaft Position Sensor Malfunction - Circuit A.
P0336 Crankshaft Position Sensor Range/Performance - Circuit A.
P0340 Crankshaft Position Sensor Circuit Malfunction.
P0342 Crankshaft Position Sensor Circuit Low Input.
P0343 Crankshaft Position Sensor Circuit High Input.
P0400 EGR Flow Malfunction.
P0403 EGR Circuit Malfunction.
P0404 EGR Circuit Range/Performance Malfunction.
P0420 Catalyst System Efficiency below Threshold - Bank 1.
P0422 Main Catalyst Efficiency below Threshold - Bank 1.
P0440 Evaporative Control Malfunction.
P0441 Evaporative Control System - Improper Purge.
P0442 Evaporative Control System - Small Leak detected.
P0443 Evaporative Control System Purge Control Valve Circuit Malfunction.
P0446 Evaporative Vent Control Circuit Malfunction.
P0447 Evaporative Vent Control Circuit Open.
P0448 Evaporative Vent Control Circuit Short.
P0450 Evaporative System Pressure Sensor Circuit Malfunction.
P0452 Evaporative Control System Pressure Sensor Low Input.
P0453 Evaporative Control System Pressure Sensor High Input.
P0455 Evaporative Control System - Large Leak detected.
P0470 Exhaust Pressure Sensor Malfunction.
P0500 Vehicle Speed Sensor Malfunction.
P0501 Vehicle Speed Sensor Range/Performance.
P0505 Idle Air Control System Malfunction.
P0506 Idle Air Control System Malfunction - RPM Lower than expected.
P0507 Idle Air Control System Malfunction - RPM Higher than expected.
P0510 CTP Switch Malfunction.
P0561 System Voltage Unstable.
P0562 System Voltage Low.
P0563 System Voltage High.
P0601 Internal Control Module Memory Checksum Error.
P0604 Internal Control Module RAM Error.
P0703 Torque Converter/Brake Pedal Switch Malfunction - Circuit B.
P0705 Transaxle Range Sensor Circuit Malfunction (PRNDL Input).
P0706 A/T Range Sensor Circuit Range/ Performance.
P0710 Transaxle Fluid Temperature Sensor Circuit Malfunction.
P0711 A/T Fluid Temperature Sensor Circuit Range/Performance.
P0715 Input/Turbine Speed Sensor Circuit Malfunction.
P0722 Output Speed Sensor Circuit No Signal.
P0726 Engine Speed Input Circuit Range/ Performance.
P0727 Engine Speed Input Circuit - No Signal.
P0731 A/T Gear 1 Improper Ratio.
P0732 A/T Gear 2 Improper Ratio.
P0733 A/T Gear 3 Improper Ratio.
P0734 A/T Gear 4 Improper Ratio.
P0740 Torque Converter Clutch System Malfunction.
P0743 Torque Converter Clutch Circuit Electrical.
P0750 Shift Solenoid "A" Malfunction.
P0753 Shift Solenoid "A" Electrical.
P0755 Shift Solenoid "B" Malfunction.
P0758 Shift Solenoid "B" Electrical.
P0760 Shift Solenoid "C" Malfunction.
P1000 Readiness Function Code.
P1115 Engine Coolant Temperature Signal from ECM to TCM.
P1121 Throttle Position Sensor Signal Malfunction from ECM to TCM.
P1170 Front Heated Oxygen Sensor Stuck.
P1195 EGR Pressure Sensor (1.6L) or Boost Sensor (1.8L) Open or Short.
P1196 Ignition Switch "Start" Open or Short (1.6L).
P1250 Pressure Regulator Control Solenoid Valve Open or Short.
P1252 Pressure Regulator Control Solenoid Valve No. 2 Circuit Malfunction.
P1307 Chassis Acceleration Sensor Signal Malfunction.
P1308 Chassis Acceleration Sensor Signal Low.
P1309 Chassis Acceleration Sensor Signal High.
P1345 No SGC Signal (1.6L).
P1386 Knock Sensor Control Zero Test.
P1402 EGR Valve Position Sensor Open or Short.
P1449 Canister Drain Cut Valve Open or Short (1.8L).
P1450 Excessive Vacuum Leak.
P1455 Fuel Tank Sending Unit Open or Short (1.8L).
P1457 Purge Solenoid Valve Low System Malfunction.
P1458 A/C Compressor Control Signal Malfunction.
P1485 EGR Solenoid Valve Vacuum Open or Short.
P1486 EGR Solenoid Valve Vent Open or Short.
P1487 EGR Boost Sensor Solenoid Valve Open or Short.
P1496 EGR Stepper Motor Malfunction - Circuit 1 (1.8L).
P1497 EGR Stepper Motor Malfunction - Circuit 2 (1.8L).
P1498 EGR Stepper Motor Malfunction - Circuit 3 (1.8L).
P1499 EGR Stepper Motor Malfunction - Circuit 4 (1.8L).
P1500 No Vehicle Speed Signal to TCM.
P1505 Idle Air Control Valve Opening Coil Voltage Low.
P1506 Idle Air Control Valve Opening Coil Voltage High.
P1507 Idle Air Control Valve Closing Coil Voltage Low.
P1508 Idle Air Control Valve Closing Coil Voltage High.
P1523 VICS Solenoid Valve.
P1586 A/T-M/T Codification.
P1608 PCM Malfunction.
P1611 MIL Request Circuit Voltage Low.
P1614 MIL Request Circuit Voltage High.
P1624 MIL Request Signal from TCM to ECM.
P1631 Alternator "T" Open or No Power Output (1.8L).
P1632 Battery Voltage Detection Circuit for Alternator Regulator (1.8L).
P1633 Battery Overcharge.
P1634 Alternator "B" Open (1.8L).
P1693 MIL Circuit Malfunction.
P1743 Torque Converter Clutch Solenoid Valve Open or Short.
P1794 Battery or Circuit Failure.
P1795 4WD Switch Signal Malfunction.
P1797 P or N Range Signal or Clutch Pedal Position Switch Open or Short.

Hyundai Code

2009-01-02T04:02:00.005+07:00

Accessing Trouble Codes
With Multi-Use Tester

Except 1993-95 Scoupe

1. Turn ignition switch to Off.
2. Connect harness connector of multi-use tester to diagnostic connector in fuse box, located on left kick panel.
3. Connect power-source terminal of multi-use tester to cigarette lighter socket.
4. Turn ignition switch On, then use multi-use tester to read self-diagnostic codes.
5. Repair any malfunctions found using tester.
6. Turn ignition switch Off, then disconnect battery ground cable for 10 seconds.
7. Check that no malfunction codes are displayed with multi-use tester.
8. Disconnect multi-use tester. If a test is to made during cranking, the power to cigarette lighter will be interrupted therefore, use a separate battery harness for multi-use tester.

With Analog Voltmeter

Except 1993-95 Scoupe

1. Connect voltmeter to self-diagnosis connector, located in fuse box on left kick panel.
2. Turn ignition switch On and note an immediate indication of ECM (ECU) memory contents will begin. If system is in normal condition, pointer of voltmeter indicates a normal pattern. If any abnormality is in the memory, pointer of voltmeter will deflect indicating an abnormal condition.
3. After recording abnormal items, check and repair each part.
4. After repairs have been completed, disconnect battery ground cable for at least 15 seconds to erase codes from memory.

Using On-Board Diagnostic Lamp

1993-95 Scoupe

1. With ignition switch in the On position, ground the No. 10 terminal (L wire) of diagnostic connector for approximately 2.5 seconds.
2. The diagnostic connector is located on the left hand kick panel. The first diagnostic trouble code or no fault detected will be indicated by the on-board diagnostic lamp. The onboard diagnostic lamp will indicated DTC's by flashing frequencies and 2 second pauses. As an example, one flash, followed by a 2 second pause, followed by two flashes and another 2 second pause, followed by two flashes and a 2 second pause, followed by three flashes and another 2 second pause, indicates a failure code 1223. The fault code will be repeated until the No. 10 terminal of the diagnostic connector is grounded to proceed to the next fault code.
3. The last output consist of the end of output code 3333.

Clearing Trouble Codes

To erase any diagnostic codes, disconnect battery ground cable for 15 seconds and the ECM (ECU) memory will be erased.

COMPUTER CODES for Hyundai Vehicles.

If codes other than these are indicated, repeat self-diagnosis.
If codes reappear, substitute a known good ECM, and recheck codes.

CODE
Hyundai Stellar vehicles.
1 Oxygen sensor or circuit
2 Ignition signal
3 Airflow sensor or circuit
4 Atmospheric pressure sensor or circuit
5 Throttle position sensor or circuit
6 Idle Speed Control (ISC) motor position sensor or circuit
7 Coolant temperature sensor or circuit
8 TDC sensor or circuit
9 System normal

CODE

Hyundai Sonata, Excel(90 on),
Scoupe (91 & 92), Elantra.
1 Electronic Control Unit (ECU) (one long needle sweep)
2 ECU system normal
11 Oxygen sensor or circuit
12 Airflow sensor or circuit
13 Intake air temperature sensor or circuit
14 Throttle Position Sensor (TPS) or circuit
15 Motor position sensor or circuit
21 Coolant temperature sensor or circuit
22 Crank angle sensor or circuit
23 TDC sensor or circuit
24 Vehicle Speed Sensor or circuit
25 Barometric pressure sensor or circuit
41 Fuel injector or circuit
42 Fuel pump or circuit
43 EGR system
44 Ignition coil
59 Oxygen sensor

CODE
Hyundai Scoupe (93 through 95) and Accent vehicles.
1122 ECM failure (ROM/RAM)
1169 ECM failure
1233 ECM failure (ROM)
1234 ECM failure (RAM)
2121 Turbo boost sensor control valve
3112 NO. 1 fuel injector
3114 Idle air control (opening failure)
3116 NO. 3 fuel injector
3117 Mass airflow sensor
3121 Turbo boost sensor failure
3122 Idle air control (closing failure)
3128 Heated oxygen sensor
3135 EVAP purge control solenoid valve
3137 Alternator output low
3145 Engine coolant temperature (ECT) sensor
3149 Air conditioning compressor
3152 Turbocharger overboost
3153 Throttle position switch (TPS)
3159 Vehicle speed sensor (VSS)
3211 Knock sensor
3222 Phase sensor
3224 ECM failure (knock evaluation circuit)
3232 Crank position sensor
3233 Same as 3224
3234 NO. 2 fuel injector
3235 NO. 4 fuel injector
3241 ECM failure (injector or purge solenoid)
3242 ECM failure (IAC or air conditioning relay)
3243 ECM failure
4133 ECM failure
4151 Air/fuel control
4152 Air/fuel adaptive failure
4153 Air/fuel multiple adaptive failure
4154 Air/fuel additive adaptive failure
4155 ECM failure (A/C relay, IAC, PCV or injector)
4156 Same as code 3121
4444 Normal
3333 End of trouble codes

Toyota Trouble Code Info

2009-01-02T03:54:00.003+07:00

Before proceeding, make sure the:
- CHECK ENGINE light circuit is functional. It should be ON when the ignition switch is ON with the engine stopped.
- Battery voltage is above 11 volts.
- Throttle valve is fully closed (Throttle Position Sensor IDL points closed).
- Accessory switches (A/C, etc.) are OFF.
- Engine is at normal operating temperature (if possible).
Turn ignition switch to ON position.
- Do not start the engine.
- Place a jumper wire across TEl and El terminals in engine check connector.
Count number of flashes from CHECK ENGINE light.
- If system is operating normally (with no detected faults), the CHECK ENGINE light will blink continuously
  and evenly about 2 times a second.
Otherwise, the light will blink a number of times equal to the trouble code as follows:
- The light blinks only (.5 second ON, .5 second OFF) when indicating a number.
- The light will be OFF for 1.5 seconds between the first digit and the second digit of the code.
- If more than one code is stored, the light will be OFF for 2.5 seconds before the next code is displayed.
- Once all code(s) have been displayed, the light will be OFF for 4.5 seconds and then the whole sequence will repeat.
The diagnostic code series will continue to repeat as long as the check connecter terminals TEl and El are connected.
When finished, remove the jumper wire.
After repairing the malfunction, clear the codes from the ECUs memory.

Clearing Trouble Codes

All trouble codes must be purged from the ECUs memory after repairing the faults. Otherwise, code(s) would remain in the ECUs memory indefinitely and would appear along with a new code in the event of a future problem.
Remove the EFI fuse (15A) for 30 seconds with the ignition switch OFF to clear any codes. It may take longer than 30 seconds, depending on ambient temperature (the lower the temperature, the longer the fuse must be left out).
Trouble codes can also be cleared by disconnecting the vehicle battery. However, other memory functions (clock, radio, etc.), will need to be reset.
After the codes are cleared, road test the vehicle (as applicable for the fault) and recheck if any codes reset. If so, it indicates that the trouble area has not been repaired correctly.

Trouble Codes

OBD1 Codes
1	Normal Condition.
2	Air Flow Meter signal.
3	Ignition signal.
4	Engine Coolant Temperature Sensor signal.
5	Oxygen Sensor.
6	RPM signal (Crank Angle Pulse).
7	Throttle Position Sensor signal.
8	Intake Air Temperature Sensor signal.
9	Vehicle Speed Sensor signal.
10	Starter signal.
11	Switch signal.
11	ECU/ECM.
12	Knock Control Sensor signal.
12	RPM signal.
13	Knock Control CPU (ECM).
13	RPM signal.
14	Turbocharger Pressure.
14	Ignition signal.
21	Oxygen Sensor.
22	Engine Coolant Temperature Sensor signal.
23	Intake Air Temperature Sensor signal.
24	Intake Air Temperature Sensor signal.
25	Air-Fuel Ratio Lean.
26	Air-Fuel Ratio Rich.
27	Sub Oxygen Sensor signal.
28	No. 2 Oxygen Sensor signal.
31	Air Flow Meter signal (Vacuum Sensor signal).
32	Air Flow Meter signal.
34	Turbocharger Pressure signal.
35	Turbocharger Pressure Sensor signal.
35	HAC Sensor signal.
41	Throttle Position Sensor signal.
42	Vehicle Speed Sensor signal.
43	Starter signal.
51	Switch signal.
52	Knock Sensor signal.
53	Knock Sensor signal.
54	Inter-cooler ECM signal.
71	EGR System.
72	Fuel Cut Solenoid signal.
78	Fuel Pump Control signal.
81	TCM Communication.
83	TCM Communication.
84	TCM Communication.
85	TCM Communication.

OBD II
P0100	Mass Air Flow Circuit.
P0101	Mass Air Flow Circuit Range/Performance.
P0105	Manifold Absolute Pressure Circuit.
P0106	MAP/BARO Circuit Range/Performance.
P0110	Intake Air Temperature Circuit.
P0115	Engine Coolant Temperature Circuit.
P0116	Engine Coolant Temperature Range/Performance.
P0120	Throttle Pedal Sensor Switch "A" Circuit.
P0121	Throttle Pedal Sensor Switch "A" Circuit Range/Performance.
P0125	Insufficient Coolant Temperature for Closed Loop Fuel Control.
P0130	Heated Oxygen Sensor Circuit - Bank 1 Sensor 1.
P0133	Heated Oxygen Sensor Circuit Slow Response Bank 1 Sensor 1.
P0135	Heated Oxygen Sensor Circuit - Bank 1 Sensor 1.
P0136	Heated Oxygen Sensor Circuit - Bank 1 Sensor 2.
P0141	Heated Oxygen Sensor Circuit - Bank 1 Sensor 2.
P0150	Heated Oxygen Sensor Circuit - Bank 2 Sensor 1.
P0153	Heated Oxygen Sensor Circuit Slow Response Bank 2 Sensor 1.
P0155	Heated Oxygen Sensor Circuit - Bank 2 Sensor 1.
P0156	Heated Oxygen Sensor Circuit - Bank 2 Sensor 2.
P0161	Heated Oxygen Sensor Circuit - Bank 2 Sensor 2.
P0170	Fuel Trim malfunction.
P0171	System too Lean.
P0172	System too Rich.
P0201	Injector Circuit - Cyl. 1.
P0202	Injector Circuit - Cyl. 2.
P0203	Injector Circuit - Cyl. 3.
P0204	Injector Circuit - Cyl. 4.
P0205	Injector Circuit - Cyl. 5.
P0206	Injector Circuit - Cyl. 6.
P0300	Random Misfire.
P0301	Misfire Detected - Cyl. 1.
P0302	Misfire Detected - Cyl. 2.
P0303	Misfire Detected - Cyl. 3.
P0304	Misfire Detected - Cyl. 4.
P0305	Misfire Detected - Cyl. 5.
P0306	Misfire Detected - Cyl. 6.
P0325	Knock Sensor 1 Circuit.
P0330	Knock Sensor 2 Circuit.
P0335	Crankshaft Position Sensor "A" Circuit.
P0336	Crankshaft Position Sensor "A" Circuit Range/Performance.
P0340	CMP Sensor Circuit malfunction.
P0385	Crankshaft Position Sensor "B" NE2 Circuit.
P0401	EGR Flow Insufficient.
P0402	EGR Flow Excessive.
P0420	Catalyst System Efficiency below Threshold.
P0430	Catalyst System Efficiency below Threshold Bank 2.
P0440	EVAP Control System.
P0441	EVAP Control System Improper Purge Flow.
P0446	EVAP Control System Vent Control.
P0450	EVAP Control System Pressure Sensor.
P0451	EVAP Control System Pressure Sensor Range/Performance.
P0500	Vehicle Speed Sensor.
P0505	Idle Speed Control System.
P0510	Close Throttle Position Switch.
P1100	BARO Sensor Circuit.
P1120	Accelerator Pedal Position Sensor Circuit.
P1121	Accelerator Pedal Position Sensor Range/Performance Problem.
P1125	Throttle Control Motor Circuit.
P1126	Magnetic Clutch Circuit.
P1127	ETCS Actuator Power Source Circuit.
P1128	Throttle Control Motor Lock.
P1129	Electric Throttle Control System.
P1130	Air-Fuel Sensor Circuit Range/Performance.
P1133	Air-Fuel Sensor Circuit Response.
P1135	Air-Fuel Sensor Heater Circuit Response.
P1150	A/F Sensor Circuit Range/Performance.
P1153	A/F Sensor Circuit Response.
P1155	A/F Sensor Heater Circuit.
P1200	Fuel Pump Relay Circuit.
P1300	Igniter Circuit - No. 1.
P1310	Igniter Circuit - No. 2.
P1335	No Crankshaft Position Sensor Signal - Engine Running.
P1349	VVT System.
P1400	Sub-Throttle Position Sensor.
P1401	Sub-Throttle Position Sensor Range/Performance Problem.
P1405	Turbo Pressure Sensor Circuit.
P1406	Turbo Pressure Sensor Range/Performance Problem.
P1410	EGR Valve Position Sensor Circuit.
P1411	EGR Valve Position Sensor Circuit Range/Performance.
P1500	Starter Signal Circuit.
P1510	Boost Pressure Control Circuit.
P1511	Boost Pressure Low.
P1512	Boost Pressure High.
P1520	Stop Lamp Switch Signal.
P1565	Cruise Control Main Switch Circuit.
P1600	ECM.
P1605	Knock Control CPU.
P1630	Traction Control System.
P1633	ECM.
P1652	Idle Air Control Valve Control Circuit.
P1656	OCV Circuit.
P1658	Wastegate Valve Control Circuit.
P1661	EGR Circuit.
P1662	EGR by-pass Valve Control Circuit.
P1780	Park/Neutral Switch.

DTC (Diagnostic Trouble Codes) Daihatsu

2009-01-02T03:50:00.004+07:00

Accessing Diagnostic Trouble Codes

The ECU self diagnosis circuit detects and stores system malfunctions related to the various sensor and actuator circuits. These malfunctions are stored as DTCs in the ECU as long as battery voltage is applied to the ECU and the Check Engine lamp will remain On as long as the malfunction is present. By analyzing these DTCs, system malfunctions can be easily diagnosed and repaired.

To obtain DTCs stored in the ECU memory, close throttle valve fully and turn all accessory switches off, then proceed as follows:

Short terminals of check connector with check connector test harness tool No. 09991-87702-000, or equivalent.

Check connector test harness

Turn ignition On. Do not start engine.
DTCs stored in ECU will cause Check Engine warning lamp to flash.

Diagnostic Trouble Code Interpretation

Normal System operation is indicated by Check Engine lamp blinking once every 4.5 seconds.
If ECU has detected a system malfunction, Check Engine lamp will blink a number of times to equal to DTC with an interval of 2.5 seconds between DTCs. After all stored DTCs have been read, there will be a 4.5 second pause and all DTCs will repeat.

Clearing Diagnostic Trouble Codes

After service, the DTC retained in the ECU memory must be cleared by disconnecting the battery ground cable or removing the back-up fuse of the relay block assembly in the engine compartment for at least 10 seconds with the ignition turned Off.

Trouble Codes

1	Normal
2	Pressure Sensor
3	Ignition Signal
4	ECT Sensor
5	O2S Signal Or Fuel System
6	Revolution Sensor
7	TP Sensor Signal
8	IAT Sensor Signal
9	VSS Signal
10	Starter Signal
11	Switch Signal
12	EGR Control System
15	Air To Fuel Ratio (Rich)
16	Air To Fuel Ratio (Lean)

Honda Trouble Codes

2009-01-02T03:34:00.005+07:00

85 Accord, 85-87 Civic

ECU Location

The ECU is located under the passenger's seat. Codes are displayed on a series of four LEDs. With the ignition switch in the "on" position and the engine off, codes will be displayed in ascending order.

Note:

Red * indicates LED on. Blue * indicates LED off.

LED Display	Symptom	Possible causes
* * * * with dash warning lamp on	No-start	Disconnected ECU ground, loose connection at ECU main relay resistor, faulty ECU.
* * * * with dash warning lamp on	No-start	Short circuit in the warning lamp or instrument cluster wiring, disconnected ECU ground wire, faulty ECU.
* * * *	System does not operate.	Faulty ECU.
* * * *	System does not operate.	Faulty ECU.
* * * *	Fuel fouled spark plugs, engine stalls, hesitation.	MAP sensor electircal connector disconnected, open circuit in MAP sensor wiring, faulty MAP sensor.
* * * *	System does not operate.	Faulty ECU.
* * * *	Hesitation, fuel fouled spark plugs, engine stalls.	MAP sensor vacuum hose disconnected or broken.
* * * *	High idle speed when engine is cold, extended high idle or hard starting at low temperatures.	Coolant temperature sensor or ciruit open.
* * * *	Hesitation, poor throttle response, engine does not respond to throttle input when cold.	Throttle angle sensor disconnected, throttle angle sensor circuit open, faulty throttle angle sensor.
* * * *	Engine does not rev, high idle speed, erratic idle.	Crank angle sensor circuit shorted or open. Spark plug wire causing interference with crank angle sensor signal. Faulty crank angle sensor.
* * * *	Same as above.	Same as above.
* * * *	High idle speed, erratic idle when cold.	Intake air temperature sensor disconnected or open intake air temp. circuit. Faulty intake air temperature sensor.
* * * *	High idle speed at all times.	Idle mixture adjuster sensor disconnected, idle mixture adjuster sensor ciruit open, faulty idle mixture adjuster.
* * * *	System does not operate.	Faulty ECU.
* * * *	Poor acceleration at high altitude when cold.	Atmospheric pressure sensor (BARO sensor) disconnected, atmospheric pressure sensor circuit open, faulty atmoshperic pressure sensor.
* * * *	System does not operate.	Faulty ECU.
* * * *	Same as above.	Same as above.

86-87 Accord and Prelude

ECU Location

The ECU is located under the driver's seat. With the ignition switch in the "on" position and the engine OFF, the red LED on the ECU will flash the trouble codes. For example, 2 flashes, pause, 3 flashes would mean code 23. Codes are displayed in ascending order.

88-90 Civic, Accord, and Prelude

ECU Location

The ECU is located behind the passenger's side kick panel.

88-91 Civic, Accord, and Prelude

Retrieving Codes

When the CHECK ENGINE warning light has been reported on, turn the ignition ON, pull down the passenger's side carpet inspection flap from under the dashboard, and monitor the LED on the top of the control unit. The LED indicates a system failure code by its blinking frequency.

The control unit LED can indicate any number of simultaneous component problems by blinking separate codes, one after another.

If codes other than those listed are indicated, count the number of blinks again. If the indicator is in fact blinking these codes, substitute a known good ECU and recheck. If the indication goes away, replace the original ECU.

The CHECK ENGINE warning light and control unit LED may come on, indicating a system problem, when in fact, there is a poor or intermittent electrical connection. First, check the electrical connections, clean or repair connections if necessary.

92-95 Accord, Civic, Civic Del Sol and Prelude

Retrieving Codes

With ignition off, insert jumper wire in service check connector terminals, located behind right side of dash on Accord, Civic and Civic Del Sol and near center console on Prelude.
Turn ignition switch to ON position. Diagnostic Trouble Codes (DTCs) will be indicated by a series of long and short flashes on MIL.
The number of long flashes indicates the number in the 10s column. The number of short flashes indicates the number in the 1s column. For example, 4 long flashes followed by 3 short flashes would indicate DTC 43.

Clearing Codes

Disconnect the negative battery cable for at least 10 seconds to clear codes.

Accord, Civic, CRX, CR-V, del Sol, Odyssey & Prelude

PGM-CARB

If the PGM-CARB warning lamp is lit, turn ignition On, pull passenger side carpet inspection flap downward under instrument panel and observe LED on top of control unit. The LED indicates a system failure by its blinking frequency.

The control unit LED can indicate any number of simultaneous component conditions by blinking separate codes, one after another.

If DTCs 7, 9, 11, 12, 13 or any higher than 14 are indicated, count the number of blinks again. If the indicator is in fact blinking these DTCs, substitute a known good control unit and inspect again. If indication goes away, replace the control unit. The PGM-CARB warning lamp and control unit LED may light, indicating a system problem when, in fact, there is a poor or intermittent electrical connection. Clean or repair connections as required.

PGM-FI Exc del Sol, Odyssey, 90–98 Accord, 90–91 Prelude 2.1L,
92–98 Prelude & 91–98 Civic

In the event of a PGM-FI system electrical malfunction, an instrument panel mounted indicator lamp will light and stay lit. If the lamp is on, or if a system malfunction is suspected even though the lamp is off, it is necessary to inspect the electronic control unit LED display. The LED display is on the ECM (ECU), which is located just below the RH side of the instrument panel. The indicator lamps operate whenever the ignition is On and a DTC is stored in the ECM (ECU) memory.

When an abnormality is detected the ECM (ECU) display blinks. The LED blinks a certain number of times, with the number of blinks indicating the number of the DTC. After the LED blinks a number of times there will be a two second pause and the LED will blink out the number of the next DTC.

90–95 Accord Four Cylinder, 90–91 Prelude 2.1L, 92–95 Prelude & 91–95 Civic

If the malfunction indicator/Check Engine lamp remains lit or lights while the engine is operating, the ECM has detected a malfunction and has stored a DTC in its memory. To access the DTC memory, connect a jumper wire between the check connector terminals. On Accord and Civic models, the check connector is located under the RH side of the instrument panel. On 90–91 Prelude models equipped with 2.1L engine, the check connector is located in the engine compartment. On 92–95 Prelude models, the check connector is located in the passenger compartment behind the center console.

On all models, turn the ignition On. The ECM indicates stored DTCs by flashing the malfunction indicator/Check Engine lamp. DTCs one through nine are indicated by individual short blinks. DTCs 10 and above are indicated by long and short blinks. One long blink is equivalent to 10 short blinks. The DTC can be determined by adding the long and short blinks.

95–97 Accord V6 & 96–97 Accord 4 Cyl.

If the malfunction indicator/Check Engine lamp remains lit or comes on while the engine is operating, the ECM has detected a malfunction and has stored a DTC in its memory.

To access the DTC memory using a scan tool, connect the Honda PGM Tester or an OBD II scan tool to the 16-pin DLC. The DLC is located in the center console behind the ashtray. Turn the ignition On and begin troubleshooting as indicated by the tester, following its prompts to diagnose the error. If unsure how to operate the scan tool or PGM tester, refer to the tool user’s manuals for specific operating instructions.

To access DTC memory using the MIL, connect the SCS service connector to the SCS check connector. The SCS 2 pin connector is located under the passengers side of the instrument panel. Place ignition switch in the On position begin MIL flash code diagnosis.

Data Link Connector (DLC) locations. 95-97 Accord V6 & 96-97 Accord 4 cyl. In Console.
Service check connector location. 95-97 Accord V6 & 96-97 Accord 4 cyl. Passenger side, up under glove box.

98–01 Accord

If the malfunction indicator/Check Engine lamp remains lit or comes on while the engine is operating, the ECM has detected a malfunction and has stored a DTC in its memory.

To access the DTC memory using a scan tool, connect the Honda PGM Tester or an OBD II scan tool to the 16-pin DLC. The DLC is located under the drivers side of the instrument panel. Turn the ignition On and begin troubleshooting as indicated by the tester, following its prompts to diagnose the error. If unsure how to operate the scan tool or PGM tester, refer to the tool user’s manuals for specific operating instructions.

Data Link Connector (DLC) locations. 98–01 Accord Drivers side, up under RH side of dash.

96–01 Civic

If the malfunction indicator/Check Engine lamp remains lit or comes on while the engine is operating, the ECM has detected a malfunction and has stored a DTC in its memory.

Data Link Connector (DLC) locations. 96-01 Civic Drivers side, up under RH side of dash.
Service check connector location. 96-01 Civic Up underneath dash on passenger side, below or behind glove box.

CR-V

If the malfunction indicator/Check Engine lamp remains lit or comes on while the engine is operating, the ECM has detected a malfunction and has stored a DTC in its memory.

To access the DTC memory using a scan tool, connect the Honda PGM Tester or an OBD II scan tool to the 16-pin DLC. The DLC is located behind the righthand side of the center console. Turn the ignition On and begin troubleshooting as indicated by the tester, following its prompts to diagnose the error. If unsure how to operate the scan tool or PGM tester, refer to the tool user’s manuals for specific operating instructions.

To access DTC memory using the MIL, connect the SCS service connector to the SCS check connector. The SCS 2 pin connector is located behind the righthand side of the center console. Place ignition switch in the On position begin MIL flash code diagnosis.

Data Link Connector (DLC) locations. CR-V Behind passenger side of console, below dash to the Right of glove box.

Service check connector location. CR-V Up underneath dash on passenger side, below or behind glove box.

96–97 del Sol

If the malfunction indicator/Check Engine lamp remains lit or comes on while the engine is operating, the ECM has detected a malfunction and has stored a DTC in its memory.

To access the DTC memory using a scan tool, connect the Honda PGM Tester or an OBD II scan tool to the 16-pin DLC. The DLC is located on the righthand side of the center console behind a removable cover. Turn the ignition On and begin troubleshooting as indicated by the tester, following its prompts to diagnose the error. If unsure how to operate the scan tool or PGM tester, refer to the tool user’s manuals for specific operating instructions.

To access DTC memory using the MIL, connect the SCS service connector to the SCS check connector. The SCS 2 pin connector is located under the righthand side of the instrument panel. Place ignition switch in the On position begin MIL flash code diagnosis.

Data Link Connector (DLC) locations. 96-97 del Sol Behind passenger side of console, below dash to the Right of glove box.

Service check connector location. 96-97 del Sol Passenger side, up under glove box.

Odyssey

If the malfunction indicator/Check Engine lamp remains lit or comes on while the engine is operating, the ECM has detected a malfunction and has stored a DTC in its memory.

On 96–01 models, to access the DTC memory using a scan tool, connect the Honda PGM Tester or an OBD II scan tool to the 16-pin DLC. The DLC is located behind the righthand side of the center console. Turn the ignition On and begin troubleshooting as indicated by the tester, following its prompts to diagnose the error. If unsure how to operate the scan tool or PGM tester, refer to the tool user’s manuals for specific operating instructions.

On 95–98 models, to access DTC memory using the MIL, connect the SCS service connector to the SCS check connector. The SCS 2 pin connector is located under the righthand side of the instrument panel. Place ignition switch in the On position begin MIL flash code diagnosis.

Data Link Connector (DLC) locations. 96-98 Odyssey Behind passenger side of console, below dash to the Right of glove box.

Data Link Connector (DLC) locations. 99-01 Odyssey Driver's side, up under RH side of dash near the console.

Service check connector location. 95-98 Odyssey Behind passenger side of console, below dash to the Right of glove box.

96 Prelude

If the malfunction indicator/Check Engine lamp remains lit or comes on while the engine is operating, the ECM has detected a malfunction and has stored a DTC in its memory.

To access the DTC memory using a scan tool, connect the Honda PGM Tester or an OBD II scan tool to the 16-pin DLC. The DLC is located under the center console beverage holder. Turn the ignition On and begin troubleshooting as indicated by the tester, following its prompts to diagnose the error. If unsure how to operate the scan tool or PGM tester, refer to the tool user’s manuals for specific operating instructions.

To access DTC memory using the MIL, connect the SCS service connector to the SCS check connector. The SCS 2 pin connector is located behind the front console. Place ignition switch in the On position begin MIL flash code diagnosis.

Data Link Connector (DLC) locations. 96 Prelude In console between seats.

Service check connector location. 96 Prelude Up under Driver's side of the dash, on ht eright near or behind the console.

97–01 Prelude

If the malfunction indicator/Check Engine lamp remains lit or comes on while the engine is operating, the ECM has detected a malfunction and has stored a DTC in its memory.

To access the DTC memory using a scan tool, connect the Honda PGM Tester or an OBD II scan tool to the 16-pin DLC. The DLC is located on right side of center console behind the access cover. Turn the ignition On and begin troubleshooting as indicated by the tester, following its prompts to diagnose the error. If unsure how to operate the scan tool or PGM tester, refer to the tool user’s manuals for specific operating instructions.

To access DTC memory using the MIL, connect the SCS service connector to the SCS check connector. The SCS 2 pin connector is located on right side of center console behind the access cover. Place ignition switch in the On position begin MIL flash code diagnosis.

Data Link Connector (DLC) locations. 97–01 Prelude Behind passenger side of console, below dash to the Right of glove box.

Service check connector location. 97–01 Prelude Behind cover on the passenger side of console.

DTC identification(OBD 2)

2009-01-02T03:26:00.003+07:00

Diagnostic Trouble Code OBD II

OBDII	MIL
P0106	5	MAP Circuit Range Or Performance
P0107	3	MAP Circuit Low Input
P0108	3	MAP Circuit High Input
P0111	10	IAT Sensor Circuit Range/Performance
P0112	10	IAT Sensor Circuit Low Input
P0113	10	IAT Sensor Circuit High Input
P0116	86	ECT Circuit Range Or Performance
P0117	6	ECT Circuit Low Input
P0118	6	ECT Circuit High Input
P0122	7	TP Sensor Circuit Low Input
P0123	7	TP Sensor Circuit High Input
P0131	1	Primary HO2S Circuit Low Voltage (Sensor 1)
P0132	1	Primary HO2S Circuit High Voltage (Sensor 1)
P0133	61	Primary HO2S Circuit Slow Response (Sensor 1)
P0135	41	Front HO2S Heater Circuit Fault (Sensor 1)
P0137	63	Secondary HO2S Circuit Low Voltage (Sensor 2)
P0138	63	Secondary HO2S Circuit High Voltage (Sensor 2)
P0139	63	Secondary HO2S Circuit Slow Response (Sensor 2)
P0141	65	Secondary HO2S Heater Circuit Fault (Sensor 2)
P0171	45	System Too Lean
P0172	45	System Too Rich
P0300	—	Random Misfire
P0301	71	Misfire Cyl. 1 Or Random Misfire
P0302	72	Misfire Cyl. 2 Or Random Misfire
P0303	73	Misfire Cyl. 3 Or Random Misfire
P0304	74	Misfire Cyl. 4 Or Random Misfire
P0305	75	Misfire Cyl. 5 Or Random Misfire
P0306	76	Misfire Cyl. 6 Or Random Misfire
P0325	23	KS Circuit Malfunction
P0335	4	CKP Sensor Circuit Low Input
P0336	4	CKP Sensor Range/Performance
P0401	80	EGR Insufficient Flow Detected
P0420	67	Catalyst System Efficiency Below Threshold
P0441	92	EVAP Emission Control System Improper Purge Flow
P0451	91	Fuel Tank Pressure Sensor Range/Performance
P0452	91	Fuel Tank Pressure Sensor Circuit Low Input
P0453	91	Fuel Tank Pressure Sensor Circuit High Input
P0500	17	VSS Circuit Malfunction (M/T)
P0501	17	VSS Circuit Range/Performance (A/T)
P0505	14	ICS Malfunction
P0560	34	Powertrain Control Module (PCM) Backup Voltage Circuit Low Voltage
P0700, P0715, P0720, P0725, P0730, P0740, P0753, P0758, P0763, P0780	70	A/T Concerns
P1106	13	BARO Circuit Range/Performance
P1107	13	BARO Circuit Low Input
P1108	13	BARO Circuit High Input
P1121	7	Throttle Position Lower Than Expected
P1122	7	Throttle Position Higher Than Expected
P1128	5	MAP Lower Than Expected
P1129	5	MAP Higher Than Expected
P1149	61	Primary HO2S (Sensor 1) Circuit Range/Performance Problem
P1162	48	Primary HO2S (No. 1) Circuit Malfunction
P1163	61	Primary HO2S (No. 1) Circuit Slow Response
P1164	61	Primary HO2S (No. 1) Circuit Range/Performance
P1165	61	Primary HO2S (No. 1) Circuit Range/Performance
P1166	41	Primary HO2S (No. 1) Heater System Electrical
P1167	41	Primary HO2S (No. 1) Heater System
P1168	48	Primary HO2S (No. 1) LABEL Low Input
P1169	48	Primary HO2S (No. 1) LABEL High Input
P1253	21	VTEC System Malfunction
P1257, P1258, P1259	22	VTEC System Malfunction
P1297	20	Electrical Load Detector Circuit Low Input
P1298	20	Electrical Load Detector Circuit High Input
P1300	71–74	Multiple Cylinder Misfire Detected
P1336	54	CSF Sensor Intermittent Interruption
P1337	54	CSF Sensor No Signal
P1359	8	CKP/TDC Sensor Connector Disconnection
P1361	8	TDC Sensor Intermittent Interruption
P1362	8	TDC Sensor No Signal
P1366	58	TDC Sensor No. 2 Intermittent Interruption
P1367	58	TDC Sensor No 2 Signal
P1381	9	Cylinder Position Sensor Intermittent Interruption
P1382	9	Cylinder Position Sensor No Signal
P1456	90	EVAP Emission Control System Leak Detected (Fuel Tank System)
P1457	90	EVAP Emission Control System Leak Detected (Control Canister System)
P1459	92	EVAP Emission Purge Flow Switch Malfunction
P1486	—	Thermostat Range/Performance Problem
P1491	12	EGR Valve Lift Insufficient Detected
P1498	12	EGR Valve Lift Sensor High Voltage
P1508	14	IAC Valve Circuit Failure
P1509	14	IAC Valve Circuit Failure
P1519	14	Idle Air Control Valve Circuit Failure
P1607	—	ECM/PCM Internal Circuit Failure A
P1655	30	SEAF/SEFA/TMA/TMB Signal Line Failure
P1660	70	A/T FI Signal A Circuit Failure
P1676	—	FPTDR Signal Line Failure
P1678	—	FPTDR Signal Line Failure
P1681	30	A/T FI Signal A Low Input
P1682	30	A/T FI Signal A High Input
P1686	31	A/T FI Signal B Low Input
P1687	31	A/T FI Signal B High Input
P1705, P1706, P1738, P1739, P1753, P1758, P1768, P1773, P1785, P1786, P1790, P1791, P1792, P1793, P1794	70	A/T Concerns
P1870, P1873, P1879, P1885, P1886, P1888, P1890, P1891	70	A/T Concerns

DTC identification(OBD 1)

2009-01-02T03:23:00.003+07:00

LED, MIL & Check Engine Lamp Flash

0	Engine Control Module
1	HO2S Or O2S
2	HO2S Or O2S{2}
2	VSS{1}
3	MAP Sensor
4	CKP Sensor{2}
4	Vacuum Switch{1}
5	MAP Sensor
6	ECT Sensor
7	TP Sensor{2}
	M/T Clutch Switch Signal{1}
	A/T Shift Position Signal{1}
8	TDC{2}
8	Ignition Coil Signal{1}
9	No. 1 Cylinder Position Sensor
10	IAT Sensor
12	EGR System
13	BARO Sensor
14	IAC Valve{2}
14	EACV{1}
15	Ignition Output Signal
16	Fuel Injector System
17	VSS
19	Lock-Up Solenoid Valve
20	Electric Load Detector
21	VTEC Solenoid Valve
22	VTEC Pressure Switch
23	KS
30	A/T FI Signal A
31	A/T FI Signal B
41	HO2S Heater
43	Fuel Supply System
48	HO2S{3}

Conversion Harness OBD cable

2009-01-02T02:27:00.002+07:00

OBD0 to OBD1

Convert your 1988-1991 civic/crx and 1990-1991 Integra to run any manual OBD1 1992-1995 ecu. Requirements: All civic/crx models must either be a SI or HF or a MPFI(Multi Point Fuel Injection) converted car. DX and Standard models that are DPFI (Dual Point Fuel Injection) must be converted to MPFI for this conversion to work properly. This conversion is primarily made for a 5 speed chassis. You will need an OBD1 ecu, distributor and a 4 wire O2 sensor.

All Harnesses come with detailed instructions for an easy installation. Also included with the harness is a quick disconnect connector that will allow you to feed the sensor wires through the firewall easily. All sensor wires are color coordinated for an easy installation

OBD2a to OBD1

Convert your 1996-1998 civic, 1996-1999 Integra, 1996-2001 Prelude and 1996-1997 Accord to run any manual OBD1 1992-1995 ecu. All OBD2 to OBD1 harnesses are manufactured using all brand new OEM pieces only!

OBD2b to OBD1

Convert your 1999-2000 Civic, 2000-2001 Integra and 1998-2002 Accord to run any manual
OBD1 1992-1995 ecu.

OBD1 Tuner Harness
This harness allows you to tap into all major sensors, power (12v) and ground on the ECU as well as send a Wideband voltage signal to the ECU without splicing into the customers harness. One side plugs into the stock OBD1 harness ECU plugs, the other side plugs into an OBD1 ECU. (pass thru harness)

As a tuner, this can easily save you 20 minutes of wiring/setup time and also tear down (no heat shrinking or electrical tape on wires you had to tap into.

Personally I use this to power my LM-1 when I tune. Can easily be used with the RPM Convertor to tap into the stock 0-5v sensor wires

The pigtail has the following included for easy access with add-ons or a simple volt meter:

* RPM (ICM)
* Power(12v)
* TPS (Throttle Position Sensor)
* ECT (Engine Coolant Temp)
* O2 Signal Input
* IAT (Intake Air Temp)
* MAP (Manifold Absolute Pressure Sensor)
* Ground

As always, our harnesses are guaranteed for life!
http://www.xenocron.com

OBD1 ECU pinouts(HONDA)

2009-01-02T02:20:00.002+07:00

These are the pin designations for the OBD1 ECU as well as their wire color and voltage. I always have a hard time finding this information when I need it as I'm sure others do, so here it is

KEY:
(voltage values measured in DC Volts unless otherwise specified)
V = Volts
Wht = White
Blk = Black
Grn = Green
Yel = Yellow
Brn = Brown
Blu = Blue
Org = Orange

KOEO = Key On Engine Off
KOER = Key On Engine Running

A, B, D= Slot. Numbers are read up and down from left to right, not straight across (see diagram at end).

A1-INJ1 INJECTOR#1 Brown, Battery Voltage with KOEO
A2-INJ4 INJECTOR#4 Yellow, Battery Voltage with KOEO
A3-INJ2 INJECTOR#2 Red, Battery Voltage with KOEO
A4-VTS VTEC solenoid GRN/YEL, n/a
A5-INJ3 INJECTOR#3 Blue, Battery Voltage with KOEO
A6-PO2SHTC O2 sensor heating element Org/Wht, Battery Voltage with KOEO
A7-FLR1 fuel pump Grn/BLK, Battery Voltage with KOEO
A8-empty A7 and A8 have the same circurt, so they can be the same
A9-IACV IAC valve Blk/Blu, About 10v KOEO on Warm engine
A10-empty
A11-EGR Control Solenoid Valve (if the ECU has it) Red, n/a
A12-FANC engine coolant temp switch Blu/red, n/a
A13-MIL MIL (check engine light) Blu/wht, n/a
A14-empty
A15-ACC (a/c compressor clutch) Red/Blu, n/a
A16-ALT C alternator Wht/Grn, n/a
A17-IAB IAB Solenoid Pink, n/a
A18-Org/Red, Transmission Control Module (A/T), n/a
A19-White, Intake control solenoid, Battery Voltage with KOEO
A20-PCS EVAP purge control solenoid Red/Grn, n/a
A21-ICM Yel/Grn, Ignition Control Module output signal, About 10V KOEO
A22-Igniter, same as A21
A23-PG1 ground Black, Power ground, less than 1V
A24-PG2 ground same as A23
A25-IGP2 to main relay and to ground Yel/blk, Battery positive from Main relay, Battery Voltage with KOEO
A26-LG1 gound Blk/red, less than 1V

B1-IGP2 to pin A25 Yel/Blk, Battery positive from Main relay, Battery Voltage with KOEO
B2-LG2 ground to shields for CYP & TDC Brown/Blk, <1V
B3-Orange, upshift/downshift comparative input, n/a
B4-Pink, upshift/downshift comparative input, n/a
B5-ACS a/c switch Blu/Blk, a/c input, ~5V with KOEO & A/C off; <1V KOER with A/C & blower on
B6-empty
B7-Light green, Park/Neutral switch (A/T), <1V in Park or Neutral with KOEO; 5V in Park or neutral with KOER; Battery voltage in all other positions
B8-PSPSW PSP switch Red/Green, Power steering oil pressure switch, 0V KOEO; Battery Voltage KOER While slowly turning steering wheel
B9-STARTER SIGNAL starter signal Blue/red, Battery Voltage in the START position (clutch depressed on M/T models)
B10-VSS vehicle speed sensor Orange, Pulses 0-12V while turning the left front wheel
B11-CYP P CYP(#1 piston position) -P Orange, CYP sensor input, n/a
B12-CYP M CYP -M White, CYP sensor signal, n/a
B13-TDC P TDC(top dead ceter) -P Org/Blue, TDC sensor input, n/a
B14-TDC M TDC -M Wht/Blue, TDC sensor signal, n/a
B15-CKP P CKP(crank position) -P Blu/Green, CKP Sensor input, n/a
B16-CKP M CKP -M Blu/yel, CKP Sensor signal, n/a

D1-VBU Back Up Power Wht/Yel, Battery positive From battery through Fuse Box, Battery Voltage at ALL times
D2-BKSW brake switch Grn/wht, Battery voltage at all times
D3-KS Knock Sensor Red/Blue, n/a
D4-SCS service check connector Brown/Wht, ~5V (M/T); ~11V (A/T)
D5-empty
D6-VTM VTEC pressure switch Light Blue, n/a
D7-TXD/RXD (data link connector) Light Green/Red, n/a
D8-empty
D9-ALT F alternator Wht/Red, Alternator Charging Signal, ~4.5V KOEO; Decreases under Electrical load (Headlights & rear defogger on) At warm idle
D10-ELD electric load detector input Grn/Blk, n/a
D11-TPS (throttle position sensor) Signal Red/Blk, ~0.5V KOEO with throttle fully closed; ~4.5V KOEO with throttle fully open
D12-Wht/Blk, EGR Valve Lift sensor, ~1.2V KOEO
D13-ECT (engine coolant temp) sensor input Yel/Blu, ~5V KOEO (varies with temperature)
D14-PHO2S O2 sensor White, heated 02 sensor Signal, 0.4-0.5V when ignition is turned on; drops to less than 0.1V within 2 minutes
D15-IAT Intake Air Temperature sensor signal Red/Yel, .05-4.5V KOEO(Varies with temperature)
D16-VREF (no info)
D17-MAP Map Signal Wht/Blu, ~3V KOEO (Varies with Temperature)
D18-Light Green/Blk, Transmission Control Module (A/T Only), n/a
D19-Red/Wht, Reference Voltage, ~5V KOEO
D20-Yel/Wht, Reference Voltage, ~5V KOEO
D21-Blue/Wht, Sensor ground, <1V
D22-Green/Wht, Sensor ground, <1V

OBD II and what about OBD I

2009-01-02T01:59:00.001+07:00

Since the late '70's early '80's vehicles have been equipped with sophisticated electronics to control vehicle emissions and performance.

OBD 0

Through the years several systems have been used, and keeping up with the differences from year to year was a real chore, to say the least. Multiple scanners that attached to the vehicles on-board computer systems were needed, and it was not uncommon for the scanner to become obsolete from model year to model year. These were the days of the "pre-OBD I "(On-Board Diagnosis-First design) systems.

OBD 1

Beginning in '88 CARB (California's Air Resources Board) and the EPA (Environmental Protection Agency) required vehicle manufactures to include a "self diagnostic" program capable of identifying an emission related fault in the On-Board Computer systems. The first generation of On-Board Diagnostics came to be known as OBD I. The CARB conducted studies on the OBD I vehicles and found that the system was not capable of detecting an emission related component unless it had failed. The components that had not failed completely were unable to set a DTC. Also, it was found that some systems not being monitored had failed and yet the vehicle would pass an Emissions Test as the failed part would not be a factor unless the vehicle was being driven or under a load. The CARB and the EPA passed new laws that would address the problems found during the OBD I case study. These new laws and requirements are known as OBD II. Since mid-'94-'95 some vehicles were equipped with the second design, OBD II systems. In '94-'95 only select models were equipped with this new system, and in '96 every vehicle sold in the United States were equipped with the OBD II system. You might be asking, ok, so what? Well, this was the single and largest improvement made to diagnosis and repair of the On-Board Computer systems since their introduction. The DLC (Data Link Connector) that a scanner attaches to, is virtually the same for every vehicle, and the "Generic" DTC's (Diagnostic Trouble Code) are the same for every vehicle. The terminology was changed to terms that would be used by all manufactures. Before this, the computer (PCM), for example, could have been called a Processor, ECU, Control Module, ECM, etc. To know what the name of a part on a specific system was called or how it functioned, or was located, was tough when you worked on multiple vehicle models.
www.troublecodes.net

Diagnostic Trouble Codes OBD2

2009-01-02T01:51:00.001+07:00

Accessing Diagnostic Trouble Codes
96 & later are OBD2 systems

The check engine warning light will come on when the ignition switch is turned On and the engine is not running. When the engine is started, the check engine warning light should go off. If light remains on, the self-diagnosis system has detected a fault in the system.

Battery voltage must be 11 volts or more. Throttle valve must be fully closed. Transmission must be in Neutral position. All accessories must be turned Off.
On pre-OBD II models, turn ignition to On, then use a jumper wire to connect terminals TE1 and El of the data link connector, located under the left hand side of the instrument panel. Codes are indicated by the number of flashes of the check engine warning light. On models with OBD II, utilize an OBDII scan tool , then connect to data link connector (DLC). Turn ignition and scan tool to On, and write down any codes and "freeze-frame data" that appear.

Image used with permission Copyright � 2001 ALLDATA LLC.

Reading Trouble Codes

If the ECU has detected a system malfunction, the check engine light will blink every .5 second. The first number of blinks will equal the first digit of a two digit diagnostic trouble code and after a 1.5 second pause, the second number of blinks will equal the second digit of same diagnostic trouble code. If there are two or more DTC's, there will be a 2.5 second pause between each. After all DTC's have been output there will be a 4.5 second pause and all DTC's will be repeated as long as the terminals TE1 and El of the data link connector are connected. In the event of two or more DTC's, indication will begin from smaller numbered code and continue in order to the larger. After all DTC have been recorded, remove jumper wire.

Clearing Trouble Codes

After service, the diagnostic trouble code or DTC's retained in the ECU memory must be cleared by remove the EFI fuse for approximately 10 seconds or more, depending on ambient temperature (the lower the temperature, the longer the fuse must be left out) with the ignition switch off. The OBD II scan tool has a feature to clear DTC's. Refer to the manufacturer's manual for procedures. DTC clearing can also be done by removing the battery ground cable, other memory systems (clock) will also be cleared. If the diagnostic trouble code is not cleared, it will be retained by the ECU and appear along with a new DTC in future trouble codes. If it is necessary to work on engine components requiring removal of the battery ground cable, confirm no DTC's are stored. After clearing codes, road test the vehicle to check that a normal operation. If the same diagnostic trouble code appears, the trouble has not been corrected.

Without OBD2

12	RPM Signal
13	RPM Signal
14	Ignition Signal
15	Ignition Signal
16	Electronically Controlled Transmission Control Signal
17	CMP No. 1
18	CMP No. 2
21	Main O2S & Heater Signal
22	ECT Sensor Signal
24	IAT Sensor Signal
25	Air–Fuel Ratio Lean Malfunction
26	Air–Fuel Ratio Rich Malfunction
27	Sub O2S Signal
28	Main O2S
29	Sub O2S
31 & 32	Air Flow Meter Signal
35	HAC/Barometric Pressure Sensor Signal
41	TP Sensor Signal
42	VSS Signal
43	Starter Signal
47	Sub TP Sensor
48	Secondary Injection System Malfunction
51	Switch Condition Signal
52	KS Signal
53	Knock Control Signal
55	KS Signal
70	EGR System Malfunction
71	EGR System Malfunction
78	Fuel Pump Control

With OBD2

P0100	MAF Malfunction
P0101	MAF Circuit Range/Performance
P0110	IAT Circuit Malfunction
P0115	ECT Circuit Malfunction
P0116	ECT Circuit Range/Performance
P0120	TP Position Sensor/Switch ‘‘A’’ Circuit Malfunction
P0121	TP Position Sensor/Switch ‘‘A’’ Circuit Range/Performance
P0125	Insufficient Coolant Temperature For Closed Loop Fuel Control
P0130	HO2S Circuit Malfunction, Bank 1 Sensor 1
P0133	HO2S Circuit Slow Response, Bank 1 Sensor 1
P0135	HO2S Heater Circuit Malfunction, Bank 1 Sensor 1
P0136	HO2S Circuit Malfunction, Bank 1 Sensor 2
P0141	HO2S Heater Circuit Malfunction, Bank 1 Sensor 2
P0150	HO2S Circuit Malfunction, Bank 2 Sensor 1
P0153	HO2S Circuit Slow Response, Bank 2 Sensor 1
P0155	HO2S Heater Circuit Malfunction, Bank 2 Sensor 1
P0156	HO2S Sensor Circuit Malfunction, Bank 2 Sensor 2
P0161	HO2S Heater Circuit Malfunction, Bank 2 Sensor 2
P0170	Fuel Trim Malfunction
P0171	System Too Lean (Fuel Trim)
P0172	System Too Rich (Fuel Trim)
P0174	System Too Lean (A/F Lean Malfunction, Bank 2)
P0175	System Too Rich (A/F Rich Malfunction, Bank 2)
P0300	Random Misfire Detected
P0301	Misfire Detected, Cylinder 1
P0302	Misfire Detected, Cylinder 2
P0303	Misfire Detected, Cylinder 3
P0304	Misfire Detected, Cylinder 4
P0305	Misfire Detected, Cylinder 5
P0306	Misfire Detected, Cylinder 6
P0307	Misfire Detected, Cylinder 7
P0308	Misfire Detected, Cylinder 8
P0325	KS 1 Circuit Malfunction
P0330	KS 2 Circuit Malfunction
P0335	CKP Sensor ‘‘A’’ Circuit Malfunction
P0340	CMP Circuit Malfunction
P0385	CKP Sensor ‘‘B’’ Circuit Malfunction
P0401	EGR Insufficient Flow
P0402	EGR Excessive Flow
P0403	EGR Circuit Malfunction
P0420	Catalyst System Efficiency Below Threshold Bank 1
P0430	Catalyst System Efficiency Below Threshold Bank 2
P0440	EVAP Emission Control System Malfunction
P0441	EVAP Emission Control System Improper Purge Flow
P0446	EVAP Emission Control System Vent Control Malfunction
P0450	EVAP Emission Control System Pressure Switch Malfunction
P0451	EVAP Control System Pressure Sensor Range/Performance
P0500	VSS Malfunction
P0505	Idle Control System Malfunction
P0510	Closed TP Switch Malfunction
P0550	Power Steering Pressure Sensor Circuit Malfunction
P1100	BARO Sensor Circuit Malfunction
P1120	Accelerator Pedal Position Sensor Circuit Malfunction
P1121	Accelerator Pedal Position Sensor Range/Performance Problem
P1125	Throttle Control Motor Circuit Malfunction
P1126	Magnetic Clutch Circuit Malfunction
P1127	ECTS Actuator Power Source Circuit Malfunction
P1128	Throttle Control Motor Lock Malfunction
P1129	Electronic Throttle Control System
P1130	Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (Bank 1 Sensor 1)
P1133	Air/Fuel Ratio Sensor Circuit Response Malfunction (Bank 1 Sensor 1)
P1135	Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
P1150	Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (Bank 2 Sensor 1)
P1153	Air/Fuel Ratio Sensor Circuit Response Malfunction (Bank 2 Sensor 1)
P1155	Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
P1200	Fuel Pump Relay/ECU Circuit Malfunction
P1300	Igniter Circuit Malfunction (Bank 1 Or No. 1)
P1305	Igniter Circuit Malfunction, (Bank 2 Or No. 2)
P1310	Igniter Circuit Malfunction (No. 3)
P1315	Igniter Circuit Malfunction (No. 4)
P1320	Igniter Circuit Malfunction (No. 5)
P1325	Igniter Circuit Malfunction (No. 6)
P1330	Igniter Circuit Malfunction (No. 7)
P1335	CKP Sensor Circuit Malfunction During Engine Running
P1340	Igniter Circuit Malfunction (No. 8)
P1345	VVT Sensor Circuit Malfunction (Bank 1)
P1346	VVT Sensor Rang/Performance Problem (Bank 1)
P1349	VVT System Malfunction (Bank 1)
P1350	VVT Sensor Circuit Malfunction (Bank 2)
P1351	VVT Sensor Range/Performance Problem (Bank 2)
P1354	VVT System Malfunction (Bank 2)
P1400	Sub-TP Sensor Malfunction
P1401	Sub-TP Sensor Range/Performance
P1410	EGR Valve Position Sensor Circuit Malfunction
P1411	EGR Valve Position Sensor Circuit Range/Performance Malfunction
P1500	Starter Signal Circuit Malfunction
P1520	Stop Lamp Switch Malfunction
P1565	Cruise Control Main Switch Circuit Malfunction
P1566	Cruise Control Main Switch Circuit Malfunction
P1600	ECM BATT Malfunction
P1605	Knock Control CPU Malfunction
P1633	ECM Malfunction (ETCS Circuit)
P1645	Body ECU Malfunction
P1656	OCV Circuit Malfunction (Bank 1)
P1663	OCV Circuit Malfunction (Bank 2)
P1780	PNP Switch Malfunction
B2785	Ignition Switch On Malfunction (Immobilizer System)
B2786	Ignition Switch Off Malfunction (Immobilizer System)
B2785	Ignition Switch On Malfunction (Immobilizer System)
B2791	Key Unlock Warning Switch Malfunction (Immobilizer System)
B2795	Unmatch Key Code (Immobilizer System)
B2796	No Communication In Immobilizer System
B2797	Communication Malfunction No. 1 (Immobilizer System)
B2798	Communication Malfunction No. 2 (Immobilizer System)

www.troublecodes.net

Definition of ECU(Electronic Control Unit)

2009-01-01T23:50:00.001+07:00

Definition of ECU(Electronic Control Unit)
The Electronic Control Unit (ECU) controls the fuel injection system, ignition timing, and the idle speed control system.

The ECU also interrupts the operation of the air conditioning and EGR systems, and controls power to the fuel pump (through the control relay).

The ECU consists of an 8-bit microprocessor, random access memory (RAM), read only memory (ROM), and an input/output interface.

Based on information from the input sensors (engine coolant temperature, barometric pressure, air flow, etc.),

the ECU determines optimum settings for the output actuators (injection, idle speed, ignition timing, etc.)

Links Friend

2009-01-01T22:23:00.001+07:00

Regular maintenance of the motor

2009-01-01T03:23:00.000+07:00

Regular maintenance of the motor will guarantee long life

CHANGING OIL

The older the oil gets in your car, the more friction it causes. The smooth molycules of oil eventually turn rough and this is when there is wear and tear placed on the motor. Replacing the oil every 5000km will ensure the engine oil will be working well throughout that time. Changing your oil filter at the same service interval will ensure that any dirt is collected before recirculating back through the motor.

SYNTHETIC OIL VS MINERAL OIL
As technology has got better, better technology has been put into the manufacturing of motor oil. These days there are fully synthetic, semi synthetic and minerial based oils. The most popular has been the mineral based oil.

Semi Synthetic oil is a combination of man-made and natural oil.

Synthetic oil is all manufactured as a opposed to mineral oil which is retrieved out of the ground.

Oil filter

Make air filter high quality, replace each 5000km

Air filter

Make air filter high quality, replace each 5000km

OVERHEATING ISSUES

If you notice your car sometimes overheats this is most likely because of a:

Blocked radiator - After a while the radiator can clog and if coolant has not been used the radiator may have rusted out, bonding certain sections of the radiator and making them useless.

Damaged thermostat - Just like a kettle cars have thermostats that are designed to switch off after a certain temperature. If a car thermostat is designed to open (letting water through into the radiator to be cooled) at 85 degrees celcius but remains closed, the temperature of the water (which is not circulating around the radiator) will keep rising. Replacing the thermostat and gasket around the thermostat will need to be done and fresh coolant to replace what was taken out.

Leaking Headgasket - A headgasket sits inbetween the block of the motor and the cylinder head. Inbetween the headgasket there are water jackets all around the piston, and the headgasket must allow coolant to flow through without obstruction. If a headgasket was to break or the head to crack, it would allow a certain amount of water into the combustion chamber and gradually the water in the cooling system will run out which will result in the car overheating.

MAINTAINING YOUR SUSPENSION
Maintain your cars suspension for a smoother ride and better handling

Suspension is an often overlooked maintenance item that can have big impacts on drivability and safety. Sagging springs will make the car handle like a boat and the response time in case of an emergency is greatly reduced. Shock absorbers play a huge role in keeping the car from loosing adhesion to the road on every surface.

Suspension bushes translate all the bumps in the road to the chassis of the car. After a while the rubber made bushes wear away and suspension components have more play in them. This often results in knocking noises, poor car handling and bad steering response.

Keeping these aspects in good condition could save your life.

MAINTAINING YOUR PAINT
Car paint (or known as "Duco") that has been taken care of looks fantastic and pushes the value of the car by quite a bit. It only takes a bit of care towards it to last the distance.

I have owned cars that were 18 years old yet the paint looked like it was out of the factory. Heres how you can ensure yours will last too:

REGULAR WASHES

Washing your car every 2-3 weeks is a great way to keep any dirt from attacking your paint. Bird leavings are one of the worst things to leave on your car, the acid in the leavings will fade sections of paint quite severely.

POLISH

Polishing your car does not have to be done so regularly but if done right will ensure that any dirt on the car during your regular washes will do as little damage as possible. A nicely polished car will have a very impressive shine to it and the procedure to polishing a car is relatively simple. Instructions will be found on the back of the product.

WHAT IS CUT AND POLISH?

A coat of paint has hundreds of layers, but with time the top layers who are subjected to rain, heat and cold eventually oxidise which will leave the paint colour looking flat and lacking much shine. The idea behind a cut and polish is that it cuts into one of those layers and removes the oxidised paint.

Car Ignition System Works

2009-01-01T02:58:00.000+07:00

Car Ignition System Works

The ignition system in your car ignites the fuel inside the engine's combustion chamber at the optimal time in the piston stroke to produce the most power while emitting the least amount of emissions as possible. There are many configurations of ignition systems but all operate on the same principle, create a low energy field and collapse it onto a high energy coil and that transfers the electrical energy into the secondary ignition system, coil wire, distributor cap and rotor (if equipped) plug wires and finally the spark plug.

Typical Ignition System in Operation

This system is triggered by the primary ignition system, this system varies depending on manufacturer but all operate on the same principle, use some kind of low voltage trigger system i.e. crankshaft position sensor, camshaft position sensor. This low voltage system (1.5 to 3.0 volts) is amplified to 12 volts by using a ignition module (amplifier) and then transferred to the primary side of the ignition coil. The ECM (engine control module) controls the engine ignition timing by advancing and retarding the primary trigger signal. In old cars a points, condenser and a vacuum advance unit performed this job.

This ignition coil is a pulse-type it consists, in part, of two coils of wire. These wires are wrapped around two iron cores. Because this is a step-up transformer, the secondary coil has far more turns of wire than the primary coil. The secondary coil has several thousand turns of thin wire, while the primary coil has just a few hundred raps. This allows 40,000 volts or more of voltage to be generated by a car battery.

This electrical signal is generated by the crankshaft position sensor, camshaft position sensor. The ECM calculates spark timing by using the computer system.

Some ignition systems have a coil for each spark plug. This is called Direct Ignition (DI) system, there are no plug wires in this system just individually controlled ignition coils. The amount of coils or spark plugs depend on the number of cylinders the engine is designed with.

The initial power supplied to the ignition system is generated from the battery. All vehicles use an alternator to recharge the battery during normal operation. A low battery can cause an engine not to start even if the engine is cranking over slowly. This is because the vehicle voltage has dropped below 12 volts. If any component of the ignition system is not functioning properly, it can cause an entire ignition system failure. Proper maintenance such as a tune up can help ensure that the vehicle's ignition system operates at peak performance.

Spark Plug in Operation

When an engine misfires under power it is typically caused by the ignition system. To troubleshoot the cause of the ignition system failure scan the ECM for trouble codes and repair as needed. Maintenance to the ignition system includes changing the spark plugs and distributor cap and spark plug wires if equipped. Changing the spark plugs and wires usually is a simple task that most people can perform themselves.
by www.2carpros.com

Discription otomotif center

2008-12-31T19:12:00.000+07:00

the otomotif center is blog for sharing information of otomotif, about of triks and triks. we will not be clever, without the input and information sharing, from the media or from close friends.

Technology developed rapidly because of the information systems that support advanced, fast and accurate.
Internet is a media distributor and the most immediate information on access from all over the world. automotive world so broad and so fast development. without sharing the information as if the problem will lag the specialty automotive information. I hope this blog becomes a place to exchange information and sharing a comfortable and satisfying.

OTOMOTIF CENTER

Power Efficiency

Alexa of Otomotif Center

Electric Engine-Cooling Fans

Oxygen (O2) Sensor

Handling The ECU (Electronic Control Unit)

Ignition Module And Coil Driver

Electronic Variable-Assist Power Steering

Motor Blower of AC

CHECKING THE ECU CODES

OBD II DTCs ( HONDA)

ECU Pin Out (HONDA)

Civic Electrical Connections(1998-1999)

ECU Input Sensors

Mitsubishi Trouble Code

Subaru Trouble Code Info

Diagnostic Codes Kia

Hyundai Code

Toyota Trouble Code Info

Clearing Trouble Codes

Trouble Codes

OBD II

DTC (Diagnostic Trouble Codes) Daihatsu

Accessing Diagnostic Trouble Codes

Diagnostic Trouble Code Interpretation

Clearing Diagnostic Trouble Codes

Trouble Codes

Honda Trouble Codes

92-95 Accord, Civic, Civic Del Sol and Prelude

Accord, Civic, CRX, CR-V, del Sol, Odyssey & Prelude

PGM-FI Exc del Sol, Odyssey, 90–98 Accord, 90–91 Prelude 2.1L, 92–98 Prelude & 91–98 Civic

90–95 Accord Four Cylinder, 90–91 Prelude 2.1L, 92–95 Prelude & 91–95 Civic

95–97 Accord V6 & 96–97 Accord 4 Cyl.

98–01 Accord

96–01 Civic

CR-V

96–97 del Sol

Odyssey

96 Prelude

97–01 Prelude

DTC identification(OBD 2)

Diagnostic Trouble Code OBD II

DTC identification(OBD 1)

Conversion Harness OBD cable

OBD1 ECU pinouts(HONDA)

OBD II and what about OBD I

Diagnostic Trouble Codes OBD2

Reading Trouble Codes

Clearing Trouble Codes

Without OBD2

With OBD2

Definition of ECU(Electronic Control Unit)

Links Friend

Regular maintenance of the motor

Car Ignition System Works

Discription otomotif center

PGM-FI Exc del Sol, Odyssey, 90–98 Accord, 90–91 Prelude 2.1L,
92–98 Prelude & 91–98 Civic