If any of the following DTCs are recorded, the ECM enters fail-safe mode to allow the vehicle to be driven temporarily.
| DTC | Item | Fail-Safe Operation | Fail-Safe Deactivation Conditions |
|---|---|---|---|
| P0112 and P0113 | Intake Air Temperature (IAT) sensor | ECM assumes that IAT is 20°C (68°F) | "Pass" condition detected |
| P0117 and P0118 | Engine Coolant Temperature (ECT) sensor | ECM performs engine control using estimated ECT calculated from IAT at the time of engine start and intake air volume | "Pass"condition detected |
| P0122 and P0123 | Throttle Position (TP) sensor | ECM performs engine control using TP calculated from engine speed and mass of air flow | "Pass" condition detected |
| P0135 and P0141 | Heated Oxygen Sensor (HO2S) heater | If engine load is specific value or more, heater operates after specified length of time has elapsed | "Pass" condition detected |
| P0301, P0302 and P0303 | Misfire detected | If misfire rate of cylinder exceeds catalytic damage misfire rate, fuel supply to that cylinder is suspended | "Pass" condition detected |
| P0327 | Knock sensor | ECM sets ignition timing to maximum retard | "Pass" condition detected |