If any of the following codes are recorded, the ECM enters fail-safe mode.
| DTC No. | Item | Fail-safe Operation | Fail-safe Deactivation Condition |
|---|---|---|---|
| P0011 | Variable Valve Timing (VVT) System |
|
Pass condition detected |
| P0031 P0032 |
Air-Fuel Ratio Sensor | A/F heater is turned off | Ignition switch turned OFF |
| P0037 P0038 |
Heated Oxygen Sensor | Heated Oxygen Sensor (HO2S) heater is turned off | Ignition switch turned OFF |
| P0100/31 P0102/31 P0103/31 |
Mass Air Flow Meter | If engine is running at over 3,000 rpm, ECM performs fuel cut. | "Pass" condition detected |
| P0110/24 P0112/24 P0113/24 |
Intake Air Temperature Sensor | ECM fixes intake air temperature at 20°C (68°F). | "Pass" condition detected |
| P0115/22 P0117/22 P0118/22 |
Engine Coolant Temperature Sensor |
ECM fixes engine coolant temperature at 80°C (176°F). | "Pass" condition detected |
| P0120/41 P0121/41 P0122/41 P0123/41 P0220/41 P0222/41 P0223/41 P0604/89 P0606/89 P060A P060D P060E P0657/89 P2102/41 P2103/41 P2111/41 P2112/41 P2118/89 P2119/89 P2135/41 |
Electronic Throttle Control System | If electronic throttle control system is malfunctioning, ECM cuts off current to throttle actuator. Throttle control valve returns to predetermined throttle position (approximately 6.5°) by force of return spring. Then, required engine power is calculated by using ignition timing and accelerator pedal position. Engine is controlled by intermittent fuel-cut. If accelerator pedal is depressed firmly and slowly, vehicle can be driven at minimum speed. If accelerator pedal is depressed quickly, vehicle may speed up and slow down erratically. |
"Pass" condition detected and then ignition switch turned to OFF |
| P0327/52 P0328/52 |
Knock Sensor | ECM sets ignition timing delay to maximum. | Ignition switch turned OFF |
| P0351/14 P0352/15 P0353/14 P0354/15 |
Igniter | If engine is running at over 500 rpm, ECM performs fuel cut in malfunctioning cylinders. Engine performs fuel cut in all cylinders if: 1) engine is running at over 1500 rpm, and 2) engine load rate is 20 to 89% or more. |
"Pass" condition detected |
| P2120/19 P2121/19 P2122/19 P2123/19 P2125/19 P2127/19 P2128/19 P2138/19 |
Accelerator Pedal Position Sensor | Engine is stuck on idle or output is limited. | "Pass" condition detected and then ignition switch turned OFF |