Trouble Code Identification
TROUBLE CODE IDENTIFICATION
| Code No. |
System Affected |
Probable Cause |
| 12 |
System Normal |
System Normal |
| 13 |
O2 Sensor Ckt |
Sensor, Sensor Ckt, ECM |
| 14 |
Coolant Temp. Sensor |
Temp. Sensor, Sensor Ckt, ECM |
| 15 |
Coolant Temp. Sensor |
Temp. Sensor, Sensor Ckt, ECM |
| 21 |
TPS Switch Signal (High Voltage) |
TPS Adjustment, TPS, ECM |
| 22 |
TPS Switch Signal (Low Voltage) |
TPS Adjustment, TPS, ECM |
| 24 |
Vehicle Speed Sensor Ckt |
Sensor, Sensor Ckt, ECM |
| 32 |
EGR System Malfunction |
EGR Valve, Ckt, Backpressure Transducer, Gas Temp. Sensor, VSV |
| 33 |
MAP Sensor Signal (High Voltage) |
Sensor, Sensor Ckt, ECM |
| 34 |
MAP Sensor Signal (Low Voltage) |
Sensor, Sensor Ckt, ECM |
| 43 |
Elect. Spark Control Ckt |
Knock Sensor, Ckt, ESC Module, ECM |
| 44 |
O2 Sensor - Lean Mixture |
Injectors, Fuel Pressure, EGR, Exhaust Leaks, O2 Sensor & Wiring, MAP Sensor, ECM |
| 45 |
O2 Sensor - Rich Mixture |
Injectors, Fuel Pressure, EGR, Exhaust Leaks, O2 Sensor & Wiring, MAP Sensor, TPS, Canister Purge, Ignition Shielding, ECM |
| 51 |
MEM-CAL or PROM Error |
Defective MEM-CAL, PROM, ECM |