| No Code |
System Normal |
System Normal |
| 12 |
RPM Signal |
Distributor or Circuit, Starter Signal, Ignitor, ECU |
| 13 |
RPM Signal |
Distributor, Ignitor or Circuit, ECU |
| 14 |
Ignition Signal |
Ignition Coil, Ignitor or Circuit, ECU |
| 21 |
O2 Sensor or O2 Heater Signal |
O2 Sensor, O2 Heater Signal or Circuit, ECU |
| 22 |
Coolant Temp. Sensor Signal |
Coolant Temp. Sensor or Circuit, ECU |
| 24 |
Intake Air Temp. Sensor Signal |
Intake Air Temp. Sensor or Circuit, ECU |
| 25 |
Lean Air/Fuel Mixture |
Injector or Circuit, O2 Sensor, O2 Sensor Circuit, Fuel Line Pressure, Airflow Meter, ECU, Air Intake System, Ignition System |
| 26 |
Rich Air/Fuel Mixture |
Inj or Circuit, Fuel Pressure, Cold Start Injector, Airflow Meter, O2 Sensor or Circuit, ECU |
| 27 |
Sub-O2 Sensor Signal |
O2 Sensor/Heater or Circuit, ECU |
| 31 |
Airflow Meter Signal |
Airflow Meter or Circuit, ECU |
| 41 |
TPS Signal |
TPS or Circuit, ECU |
| 42 |
Vehicle Speed Sensor Signal |
Speed Sensor or Circuit, ECU |
| 43 |
Starter Signal |
Ignition Switch or Circuit, Starter Signal Circuit, ECU |
| 51 |
Switch Signal |
Accelerator Pedal or Cable, A/C Switch Circuit, A/C Amplifier, ECU, Neutral/Start Switch or Circuit, TPS Sensor or Circuit |
| 71 |
EGR System Malfunction |
EGR System, EGR Temp. Sensor, Sensor Circuit, EGR BVSV or VSV, BVSV or VSV Circuit, ECU |