If any of the following DTCs are stored, the ECM enters fail-safe mode to allow the vehicle to be driven temporarily or stops fuel injection.
| DTC Code | Component | Fail-Safe Operation | Fail-Safe Deactivation Condition |
|---|---|---|---|
| P0031 P0032 P101D |
Air fuel ratio sensor heater | The ECM turns off the air fuel ratio sensor heater. | Power switch off |
| P0037 P0038 P102D |
Heated oxygen sensor heater | The ECM turns off the heated oxygen sensor heater. | Power switch off |
| P0087 P0088 |
Fuel pump (for high pressure) |
|
Pass condition detected and then power switch turned off |
| P0102 P0103 |
Mass air flow meter sub-assembly | The ECM calculates ignition timing according to the engine speed and throttle valve position. | Pass condition detected |
| P0112 P0113 |
Intake air temperature sensor | The ECM estimates the intake air temperature to be 20°C (68°F). | Pass condition detected |
| P0115 P0117 P0118 |
Engine coolant temperature sensor | The ECM estimates the engine coolant temperature to be 80°C (176°F). | Pass condition detected |
| P0120 P0121 P0122 P0123 P0220 P0222 P0223 P0604 P0606 P060A P060B P060E P0657 P2102 P2103 P2111 P2112 P2118 P2119 P2135 |
Electronic throttle control system | The ECM cuts off throttle actuator current and the throttle valve is returned to a 6° throttle position by the return spring. The ECM stops the engine and the vehicle can be driven using solely the hybrid system.*1 |
Pass condition detected and then power switch turned off |
| P0192 P0193 P1235 |
Fuel pressure sensor |
|
Pass condition detected and then power switch turned off |
| P0201 P0202 P0203 P0204 P062D |
Injector driver (EDU) | The ECM performs fuel-cut when the engine speed is 1000 rpm or more and the fuel trim is more than a specified value. | Pass condition detected and then power switch turned off |
| P0327 P0328 |
Knock control sensor | The ECM sets the ignition timing to maximum retard. | Power switch off |
| P0351 P0352 P0353 P0354 |
Ignition coil assembly | The ECM cuts the fuel injection. | Pass condition detected |
| P1276 P1277 P1278 P1279 |
Fuel injector assembly (for port injection) | The ECM performs fuel-cut when the engine speed is 1000 rpm or more and the fuel trim is more than a specified value. | Pass condition detected and then power switch turned off |
| P2237 P2238 P2239 P2252 P2253 |
Air fuel ratio sensor | Air fuel ratio feedback control is stopped | Pass condition detected and then power switch turned off |
Tech Tips
*1: The vehicle can be driven slowly when the accelerator pedal is depressed firmly and slowly.