ECM monitors temperature changes resulting from soaking the vehicle. Therefore, Coolant temperature and Intake temperature should be changed. If ECM detects intake air temperature correlated to coolant temperature does not change ECM determines that a fault exists and a DTC is stored.
Item | Detecting Condition | Possible Cause | |
DTC Strategy |
•
Signal check | 1. Poor connection 2. IATS | |
Enable Conditions |
•
- | ||
Threshold Value | Case1 |
•
The IAT temperature and minimum ECTS temperature difference value is higher than 20.3℃ | |
Case2 |
•
The maximum temperature and minimum temperature difference value is lower than 1.5℃ | ||
Diagnostic Time |
•
5 sec. | ||
MIL ON Condition |
•
DTC only | ||
