General Information: DTC Detecting Condition
DTC DETECTING CONDITION AND POSSIBLE CAUSES
| Item |
Detecting Condition |
Possible Cause |
| DTC Strategy |
|
- Poor connection or damaged harness
- Faulty IAT sensor
|
| Enable Conditions |
Case 1 |
- Engine running
- Battery voltage > 6V
- No relevant failure
- Engine Coolant Temp. ≥ 73°C (163°F)
- ECT at engine start - ECT at Eng. stop at previous driving cycle > 5.3°C (41.5°F)
- Cumulative time for IAT signal increase check (low load driving condition : air flow < 20kg/h) > 200 sec.
- Cumulative time for IAT signal decrease check (high load driving condition : air flow > 40kg/h) > 160 sec.
|
| Case 2 |
- Ignition "ON"
- Battery voltage ≥ 6V
- No Intake Air Temp. (IAT) sensor electrical error
|
| Threshold Value |
Case 1 |
- Signal stuck : Intake air temperature signal variation since Engine Start < 1.5 °C ~ 40 °C
|
| Case 2 |
- Noisy signal : IAT - IAT moving mean value > 8 °C
|
| Diagnostic Time |
Case 1 |
|
| Case 2 |
|
| MIL On Condition |
|