| Main Action |
- During ECM off (engine off), check that engine off timer is incrementing
|
- Poor contact of connector
- Engine Control Module (ECM)
|
| Prerequisite Condition |
Case1 |
- Warmed up condition met at previous DC
- ECT at previous DC is greater than 55°C (131°F)
- IAT deviation is greater than 0°C (32°F) (IAT deviation is difference between IAT at key off previous DC and IAT at key on)
- ECT deviation is greater than 40°C (104°F) (ECT deviation is difference between ECT at key off previous DC and ECT at key "ON")
- IAT or ECT circuit fault not present
|
| Case2 |
- Warmed up condition met at previous DC
- ECT at previous DC is greater than 55°C (131°F)
- IAT deviation is greater than 0°C (32°F) (IAT deviation is difference between IAT at key off previous DC and IAT at key on)
- ECT deviation is greater than 40°C (104°F) (ECT deviation is difference between ECT at key off previous DC and ECT at key "ON")
- IAT or ECT circuit fault not present
|
| Threshold Value |
Case1 |
- Engine off timer is less than threshold (engine off timer at key "ON" too slow)
|
| Case2 |
- Engine off timer is greater than threshold (engine off timer at key "ON" too fast)
|
| Diagnostic Time |
|
| MIL |
|