Foutcodelijst
Als een Honda een foutcode geeft, gaat het motormanagement lampje branden.
Om te kunnen controleren wat precies de fout is kan dit uitgelezen worden door een knippercode.
Het motormanagement alarm gaat branden en door middel van de snelheid geeft hij de tientallen en enkelen aan om zo achter de foutcode nummer(s) te komen.
Om er vervolgens achter te komen wat de foutcode betekent, hebben wij een lijst met alle foutcodes en de betekenis hiervan.
Een complete lijst met OBD1 en OBD0 foutcodes kan je hieronder vinden.
ECU identificeren
| Cel Code | Problem | Cause |
|---|---|---|
| 1 | Oxygen Sensor "A" (Primary) | Bad wiring or unplugged / bad sensor |
| 2 | Oxygen Sensor "B" | Bad wiring or unplugged / bad sensor |
| 3 | MAP Sensor (Manifold Absolute Pressure) | Bad wiring or unplugged / bad sensor / boost |
| 4 | CKP Sensor (Crankshaft Position Sensor) | Bad wiring or unplugged / bad sensor |
| 5 | MAP Sensor (Manifold Absolute Pressure) | Mechanical problem / disconnected piping |
| 6 | ECT Sensor (Engine Coolant Temperature) | Bad wiring or unplugged / bad sensor / low fluid |
| 7 | TP Sensor (Throttle Position) (TPS) | Bad wiring or unplugged / bad sensor |
| 8 | TDC Sensor (Top Dead Center) | Bad wiring or unplugged / bad sensor |
| 9 | CYP Sensor (Cylinder) | Bad wiring or unplugged / bad sensor |
| 10 | IAT Sensor (Intake Air Temperature) | Bad wiring or unplugged / bad sensor |
| 12 | EGR Lift Sensor (Exhaust Gas Recirculation) | Bad wiring or unplugged / bad sensor |
| 13 | BARO Sensor (Atmospheric Pressure) | Bad wiring or unplugged / bad sensor |
| 14 | IAC Valve (Idle Air Control) | Bad wiring or unplugged / bad sensor |
| 15 | Ignition Output Signal | Missing or defective ignition output signal |
| 16 | Fuel Injector System | Bad wiring or unplugged / defective fuel injector |
| 17 | VSS (Vehicle Speed Sensor) | Bad wiring or unplugged / bad sensor |
| 19 | Automatic Transmission Lock Up Control Solenoid Valve | Bad wiring or unplugged / bad sensor |
| 20 | Electrical Load Detector | Bad wiring or unplugged / bad sensor |
| 21 | VTEC Solenoid Valve | Bad wiring or unplugged / defective solenoid valve |
| 22 | VTEC Oil Pressure Switch | Bad wiring or unplugged / defective oil pressure switch |
| 23 | KS (Knock Sensor) | Bad wiring or unplugged / bad sensor |
| 30 | Automatic Transmission Signal "A" / SEAF / SEFA / TMA / TMB | Bad wiring or unplugged / bad sensor |
| 31 | Automatic Transmission Signal "B" | Bad wiring or unplugged / bad sensor |
| 41 | Primary Oxygen Sensor - Heater | Circuit malfunction |
| 43 | Fuel Supply System | Defective or malfunctioning fuel supply system |
| 45 | System Too Lean or Too Rich | Malfunction in the fuel monitoring systems |
| 48 | LAF Sensor (Lean Air Fuel) | Bad wiring or unplugged / bad sensor |
| 54 | CKF Sensor (Crankshaft Speed Fluctuation) | Bad wiring or unplugged / bad sensor |
| 61 | Oxygen Sensor, Heated - Sensor 1 (Primary) | High voltage, low voltage, or slow response |
| 65 | Oxygen Sensor Heater (Secondary) | Malfunctioning or defective oxygen sensor heater |
| 67 | Catalyst system Efficiency Below Threshold | Malfunctioning or defective catalyst system (bad cat) |
| 70 | Automatic Transmission | Malfunction with the automatic transmission controls |
| 71 | Cylinder 1 | Misfire or a Random Misfire a condition is present that is creating a cylinder misfire |
| 72 | Cylinder 2 | Misfire or a Random Misfire a condition is present that is creating a cylinder misfire |
| 73 | Cylinder 3 | Misfire or a Random Misfire a condition is present that is creating a cylinder misfire |
| 74 | Cylinder 4 | Misfire or a Random Misfire a condition is present that is creating a cylinder misfire |
| 75 | Cylinder 5 | Misfire or a Random Misfire a condition is present that is creating a cylinder misfire |
| 76 | Cylinder 6 | Misfire or a Random Misfire a condition is present that is creating a cylinder misfire |
Identifying your ECU
To identify your ECU you will need to know its generation, part number and possibly its ROM number.
The ECU can be located in several places: under a metal plate in the passenger's footwell (models up to 91), in the passenger's footwell behind a plastic panel (models 92-99) or by the driver's footwell under a plastic panel (some models 2000+)
The computer is connected via three connectors that pull out when a plastic clip is pressed. Remove the computer, and with a philips screwdriver remove the metal lid from the top of the computer. There may be small daughter circuit board covering some of the main circuitry. Unscrew this and lift it out of the way.
ECU Generations
Honda ECUs run in generations, which use different connectors. Below is a stack of ECUs running from the newest generation at the top to the oldest generation at the bottom.
| Afbeelding | OBD2B (left 3 plugs used) OBD2A ECU OBD1 ECU OBD0 (JDM PR3 and PWO) |
ECU Part Numbers
All Honda ECUs have a part number which is located on the side of the ECU and inside the ECU on the connector. e.g. 37820-P72-A01
The part number consists of three components:
- Honda's part number for ECU, which is always 37820
- Three characters (which are loosely related to the model of car/engine). e.g P72
- Three characters (which are the revision of the ECU) e.g. A01 or G52
The middle three characters are the most useful to identify what the ECU is. Different generation ECUs may use the same characters. e.g. a P72 OBD I ECU is different from a P72 OBD II ECU. Here is a list of common ECUs:
The last 3 characters are broken down into 3 parts. "A" generally is used for US ECUs. "G" is European, and "J" is Japanese. There are other versions of this, but you get the idea. The second digit "0" typically means manual transmission, where a "5" means automatic transmission, and the last digit "1" is the version number.
- PG7 : 86-89 Integra (86-87 vac advance, 88-89 electronic advance)
- PM5 : 88-91 Civic/CRX DX
- PM6 : 88-91 Civic/CRX SOHC Si
- PM7 : 89-91 DOHC ZC (JDM 'EF' ECU)
- PM8 : 88-91 CRX HF
- PR2 : 89-91 ZC (Euro)
- PR3 : 89-91 JDM B16A EF8/9
- PR3 -J00 or J51 : 92 JDM Integra B16A EF8/9
- PW0 : 89-91 JDM B16A EF8/9 DA6-XSi
- PR4 : 90-91 Integra LS/GS
- PS9 : 88-91 4 door Civic EX Auto
- P05 : 92-95 OBD-1 Civic CX
- P06 : 92-95 OBD-1 Civic DX
- P07 : 92-95 OBD-1 Civic VX
- P08 : 92-95 OBD-1 Civic D15 JDM
- P0A : 94-95 OBD-1 Accord EX
- P13 : 93-95 OBD-1 Prelude Vtec
- P14 : 93-95 OBD-1 Prelude Si (non Vtec)
- P27 : 92-95 OBD-1 EG JDM Civic 1600 sohc
- P28 : 92-95 OBD-1 Civic Si/Ex
- P30 : 92-95 OBD-1 DelSol DOHC Vtec Si/EG SiR
- P54-G31 : 1997 Honda Accord 1.8 LS
- P61 : 92-93 OBD-1 Integra GSR
- P72 : 94-95 OBD-1 Integra GSR
- P72 : 96-00 OBD-2 Integra GSR
- P73 : 96-00 OBD-2 Integra Type-R (JDM & USDM)
- P74/75: 92-95 OBD-1 Integra LS/GS
- P75 : 96-00 OBD-2 Integra LS/GS
- P2N : 96+ OBD-2 Civic HX Coupe
- P2P : 96+ OBD-2 Civic EX Coupe
- P2E : 96+ OBD-2 Civic DX Coupe
- P2M : 96+ OBD-2 NZ Civic SOHC VTEC
- P2T : 99+ OBD-? Civic Si Coupe
- P5P : 97-00 OBD-2 Prelude Type-S (JDM ECU)
- PBA : 97+ US Acura 1.6EL
- PCT : 98+ JDM ITR / CTR
- PCX : 99+ OBD-? S2000
ECU ROM Numbers
As further identification Honda ECUs have a software revision number inside the ECU. This is usually a two or three digit number stamped on the 28 pin ROM, or main processor. Accord and Prelude ECUs can use a letter and number code.