Foutcodes GM Multec inspuitsysteem
The warning lamp will illuminate when the ignition is switched on, but as soon as the engine is started the warning lamp will go out. If the warning lamp stays on or comes on while the engine is running, then the ecu has detected a fault. If the ecu detects a serious fault then the ecu will switch to an emergency programme which will allow the vehicle to be driven to a garage, so that the fault can be cured.
When pin D8 off the ecu is grounded or the diagnostic socket pins A and B connected together by a wire, then the fault codes will be displayed from the fault code light as flashes, e.g. fault code 12 displays as one flash, pause, then two flashes.
To erase the fault code, turn the ignition on/off for 25 times, if this is unsuccessful then disconnect the battery earth lead for at least one minute. The disadvantage for removing the earth lead is that it will erase the memory from other electronic units, eg. security coded radio.
| Fault Code | Associated Component/Cause Of Fault |
| 12 | Diagnosis Initiated |
| 13 | Lambda Sensor (Open Circuit) |
| 14 | Coolant Temperature Sensor (Voltage Low) |
| 15 | Coolant Temperature Sensor (Voltage High) |
| 16 | Knock Signal Circuit |
| 18 | Knock Control System |
| 19 | Incorrect Rpm Signal |
| 21 | Throttle Position Sensor (Voltage High) |
| 22 | Throttle Position Sensor (Voltage Low) |
| 24 | Speed Sensor (No Signal) |
| 25 | Injector Valve (Voltage Low) |
| 29 | Fuel Pump Relay (Voltage Low) |
| 32 | Fuel Pump Relay (Voltage High) |
| 33 | Map Sensor (Voltage High) |
| 34 | Map Sensor (Voltage Low) |
| 35 | Stepper Motor (No Idle Speed Control) |
| 41 | EST Line Coil Cylinder 2 & 3 (Voltage High) |
| 42 | EST Line Coil Cylinder 1 & 4 (Voltage High) |
| 43 | Linear EGR System |
| 44 | Lambda Sensor (Mixture Too Weak) |
| 45 | Lambda Sensor (Mixture Too Rich) |
| 47 | Linear EGR Position |
| 49 | Battery Voltage High |
| 51 | Electronic Control Unit (Memory Failure) |
| 55 | Electronic Control Unit |
| 63 | EST Line Coil Cylinder 2 & 3 (Voltage Low) |
| 64 | EST Line Coil Cylinder 1 & 4 (Voltage Low) |
| 75 | Torque Control (Voltage Low) |
| 76 | Torque Control (Continuous) |
| 81 | Injector Valve (Voltage High) |
| 93 | Quad Driver Module |
Bron: http://ecusdirect.co.uk/addinfo.htm
PDF document met algemene informatie over het inspuitsysteem (Nederlands)
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