Trouble Code Table
| Trouble Code | Information Sensor | Cause of Fault |
|---|---|---|
| 10 | EEPROM | not programmed |
| 13 | O2 sensor 1 | Lead interruption |
| 14 | Coolant temperature sensor | Voltage low |
| 15 | Coolant temperature sensor | Voltage high |
| 16 | Knock sensor 1 | Signal missing / short circuit |
| 17 | Knock sensor 2 | Signal missing / short circuit |
| 18 | Knock control module | Defective |
| I9 | Inductive pulse pick - up | Incorrect engine speed signal |
| 21 | Throttle valve potentiometer | Voltage high |
| 22 | Throttle valve potentiometer | Voltage low |
| 25 | Injector 1 | Voltage high |
| 26 | Injector 2 | Voltage high |
| 27 | Injector 3 | Voltage high |
| 28 | Injector 4 | Voltage high |
| 29 | Injector 5 | Voltage high |
| 31 | Inductive pulse pick - up | No engine speed signal |
| 32 | Injector 6 | Voltage high |
| 33 | Exhaust gas recirculation valve | Voltage high |
| 34 | Exhaust gas recirculation valve | Voltage high |
| 38 | O2 sensor loop 1 | Voltage low |
| 39 | O2 sensor loop 1 | Voltage high |
| 46 | Secondary air pump relay | Voltage high |
| 47 | Secondary air pump relay | Voltage low |
| 48 | Battery | Voltage low |
| 49 | Battery | Voltage high |
| 52 | Telltale | Voltage high |
| 53 | Fuel pump relay | Voltage low |
| 54 | Fuel pump relay | Voltage high |
| 55 | Control unit | Defective |
| 56 | Idle air control | Voltage high |
| 57 | Idle air control | Voltage low |
| 59 | Intake manifold solenoid valve 1: | Voltage high |
| 61 | Fuel tank vent valve | Voltage low |
| 62 | Fuel tank vent valve | Voltage high |
| 63 | Intake manifold solenoid valve 1: | Voltage low |
| 69 | Intake air temperature sensor | Voltage low |
| 71 | Intake air temperature sensor | Voltage high |
| 73 | Hot film mass air flow meter | Voltage low |
| 74 | Hot film mass air flow meter | Voltage high |
| 75 | Torque control | Voltage low |
| 76 | Torque control | Engagement period too long |
| 81 | Injector 1 | voltage low |
| 82 | Injector 2 | Voltage low |
| 83 | Injector 3 | Voltage low |
| 84 | Injector 4 | Voltage low |
| 85 | Injector 5 | Voltage low |
| 86 | Injector 6 | Voltage low |
| 87 | AC cutoff relay | Voltage low |
| 88 | AC cutoff relay | Voltage high |
| 89 | O2 sensor loop 2 | Voltage low |
| 91 | O2 sensor loop 2 | Voltage high |
| 93 | Hall sensor | Voltage low |
| 94 | Hall sensor | Voltage high |
| 98 | O2 sensor 2 | Lead interruption |
| 123 | Intake manifold valve 1 | Blocked |
| 124 | Intake manifold valve 2 | Blocked |
| 132 | Exhaust gas recirculation poti. | Signal implausible |
| 133 | Exhaust gas recirculation valve 2 | Voltage high |
| 134 | Exhaust gas recirculation valve 2 | Voltage low |
| 135 | Telltale | Voltage high |
Note:
Modifications relative to the Motronic M 2.8 from the C 25 XE engine in the Vectra / Cavalier / Calibra are printed in bold face.
At times, components have different designations in reference to TECH 1.