Fail-Safe Mode
FAIL-SAFE MODE TROUBLESHOOTING CHART
| Mode |
Symptom |
Possible Cause |
| [Mode 1] Forced engine shutdown |
|
- ETC system can't proceed reliable algorithm procedure
- Fatal ECM internal programming error
- Faulty intake system or throttle body
|
| [Mode 2] Forced idle&Power management |
- Forced idle state controlled by fuel quantity regulation and ignition timing adjustment
|
- ETC system can't control engine power via throttle device
- Disabled throttle control or broken throttle position information
|
| [Mode 3] Forced idle |
- No response for accelerator activation
- Forced idle state
|
- No information about the accelerator position
- Broken APS 1 and 2, faulty A/D converter or internal controller
|
| [Mode 4] Limit performance&Power management |
- Engine power is determined by accelerator position and idle power requirement (Limited vehicle running)
|
- ETC system can't securely control engine power
|
| [Mode 5] Limit performance |
- Engine power varies with accelerator position
- Driver perceives lack of engine power.
- MIL ON (Normalvehicle running)
|
- Not reliable accelerator position signal or bad maximum power generation
- Faulty APS, ignition voltage or internal controller
|
| [Mode 6] Normal |
|
|