When the ignition switch is turned "ON", battery voltage is applied from the battery to the ECM through the main relay. In case that the ignition switch is turned "OFF", the ECM is supplied with power through the battery power input line to control the basic operation of vehicle.
If the battery power input line has a problem, ECM sets P2507 and MIL(Malfunction Indication Lamp) turns on.
Item | Detecting Condition | Possible cause |
DTC Strategy |
•
Monitor the battery power input line | 1. Poor connection 2. Open or short to ground in line 3. Faulty ECM |
EnableConditions |
•
- | |
Threshold value |
•
Open or short to ground in line | |
Diagnosis Time |
•
Continuous (More than 5 sec.failure for every 10 sec.test) | |
MIL On Condition |
•
2 driving cycle |
