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Trouble Code Charts

TROUBLE CODE IDENTIFICATION

Code System Affected Probable Cause
12 System Normal System Normal
13  O2 Sensor (Open) (DOHC Non-Turbo) Sensor or Circuit, ECM
13  O2 Sensor (Open) (Turbo) Sensor or Circuit, ECM
13  O2 Sensor (Open) (SOHC) Sensor or Circuit, ECM
14 (1)(2) Coolant Temp. Sensor Sensor or Circuit, ECM
14A  Coolant Temp. Sensor Sensor or Circuit, ECM
14B  Coolant Temp. Sensor Sensor or Circuit, ECM
15 (2)(3) Coolant Temp. Sensor Sensor or Circuit, ECM
21 (2) TPS Signal (High) Sensor or Circuit, ECM
21A  TPS Signal (High) Sensor or Circuit, ECM
21B  TPS Signal (Low) Sensor or Circuit, ECM
22 (2) TPS Signal (Low) Sensor or Circuit, ECM
23 (2)(3) MAT Sensor Sensor or Circuit, ECM
23A  MAT Sensor Sensor or Circuit, ECM
23B  MAT Sensor Sensor or Circuit, ECM
24  Vehicle Speed Sensor Sensor or Circuit, ECM
25 (1)(2) MAT Sensor Sensor or Circuit, ECM
31 (2) Turbo Overboost Wastegate Actuator, Control Valve, Vacuum Hose, Air Filter, ECM
32  EGR Temp. Sensor EGR Valve, Sensor or Circuit, ECM
33 (2) MAP Sensor (High) Sensor or Circuit, ECM
33A  MAP Sensor (High) Sensor or Circuit, ECM
33B  MAP Sensor (Low) Sensor or Circuit, ECM
34 (2) MAP Sensor (Low) Sensor or Circuit, ECM
41 (2) Cam Signal Sensor or Circuit, ECM
42  Elec. Spark Timing Circuit, Ign. Module, ECM
43 (2) Elec. Spark Control Knock Sensor or Circuit, MEM-CAL, ECM
44  O2 Sensor (Lean) (DOHC Non-Turbo) Injectors, Fuel Pressure, EGR, Exhaust Leaks, O2 Sensor or Circuit, MAP Sensor, ECM
44  O2 Sensor (Lean) (Turbo) Injectors, Fuel Pressure, EGR, Exhaust Leaks, O2 Sensor or Circuit, MAP Sensor, ECM
44  O2 Sensor (Lean) (SOHC) Injectors, Fuel Pressure, EGR, Exhaust Leaks, O2 Sensor or Circuit, MAP Sensor, ECM
45  O2 Sensor (Rich) (DOHC Non-Turbo) Injectors, Fuel Pressure, EGR, O2 Sensor or Circuit, MAP Sensor, TPS, Canister Purge, Ignition Shielding, ECM
45  O2 Sensor (Rich) (Turbo) Injectors, Fuel Pressure, EGR, O2 Sensor or Circuit, MAP Sensor, TPS, Canister Purge, Ignition Shielding, ECM
45  O2 Sensor (Rich) (SOHC) Injectors, Fuel Pressure, EGR, O2 Sensor or Circuit, MAP Sensor, TPS, Canister Purge, Ignition Shielding, ECM
51  ECM/MEM-CAL Failure ECM, EEPROM or MEM-CA Failure
(1) High temperature indicated by temperature sensor.
(2) Impulse turbocharged 1.6L only.
(3) Low temperature indicated by temperature sensor.
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