| DTC Strategy |
|
- Poor connector connection
- Short to ground in harness
- IATS
- ECM
|
| Enable Condition |
Case1 |
- Engine speed during engine start is greater than between 928 to 1312rpm (Depends on coolant temperature)
- Normal auxiliary battery voltage (11 to 16V)
- ECT is greater than 63°C (145°F)
- Engine off duration is greater than 1 hour
- Difference between minimum and maximum amount of heat stored in intake manifold is greater than 200
|
| Case2 |
- Normal auxiliary battery voltage (10 to 16V)
|
| Case3 |
- Normal auxiliary battery voltage (11 to 16V)
- Engine off duration is greater than 1 hour
- ECT decrease in 35s after start is less than 1.4°C (34°F)
|
| Threshold Value |
Case1 |
- Intake air temperature signal variation since engine start is less than 0.75°C (33°F)
|
| Case2 |
- When the difference value between IAT and filtered IAT is greater than 8.25°C (46°F)
|
| Case3 |
- Deviation between IAT and 3 other temp sensors is greater than 20°C (68°F)
- ECT, NAT temperature deviation among is less than 20°C (68°F)
|
| Diagnostic Time |
Case1 |
|
| Case2 |
|
| Case3 |
|
| MIL ON Condition |
|