| DETECTION CONDITION |
- The exhaust pipe temperature is estimated from the vehicle driving conditions if the estimated exhaust gas temperature is the specified value or more for a certain period of time.
Diagnostic support note
- This is a continuous monitor (CCM).
- The check engine light does not illuminate.
- FREEZE FRAME DATA is not available.
- Snapshot data is available.
- DTC is stored in the PCM memory.
|
| FAIL-SAFE FUNCTION |
- Operates the cooling fan (high speed rotation)
- Fixed charging efficiency
|
| POSSIBLE CAUSE |
- Cooling fan and cooling equipment malfunction
- High engine speed condition continues
- Fuel injection control too lean
- Air suction in intake air system
- A/F sensor malfunction
- Fuel injector clogged
- Ignition timing control improper operation
- PCM malfunction
|
| System Wiring Diagram |
Not applicable |