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Trouble Code Definition

TROUBLE CODE IDENTIFICATION

Code System Affected Probable Cause
12 System Normal System Normal
13  O2 Sensor Sensor or Circuit ECM
14 (1) Coolant Temperature Sensor Sensor or Circuit, ECM
15 (2) Coolant Temperature Sensor Sensor or Circuit, ECM
21  TPS Signal (High) TPS Adjustment, TPS, ECM
22  TPS Signal (Low) TPS Adjustment, TPS, ECM
24  Vehicle Speed Sensor Sensor or Circuit, ECM
32  EGR System EGR Valve, Wiring CircuitEGR Solenoid, EGR Filter EVRV, ECM
33  MAP Sensor Signal (High) Sensor or Circuit, ECM
34  MAP Sensor Signal (Low) Sensor or Circuit,ECM
42  Electronic Spark Timing Wiring Circuit, Ignition Module, ECM
43  Electronic Spark Control Knock Sensor or Circuit, ESC Module or ECM
44  O2 Sensor (Lean) Injectors, Fuel Pressure,Exhaust Leaks, O2 Sensor or Circuit, MAP Sensor or ECM
45  O2 Sensor (Rich) Injectors, Fuel Pressure,O2 Sensor or Circuit, MAP Sensor, TPS, Canister Purge, Ignition Shielding ECM
51  PROM Error PROM or ECM
52  EEPROM Error EEPROM or ECM
54  Fuel Pump Circuit (Low) Fuel Pump Relay, Wiring Circuit, Oil Pressure Switch, Back-up Relay, ECM
55  Faulty ECM ECM
(1) High temperature indicated by temperature sensor.
(2) Low temperature indicated by temperature sensor.
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