ECM sets P2502 when there is difference between battery voltage at power supply terminal of ECM and the voltage from battery senor.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Signal monitoring | 1. Poor connector connection 2. Open or short in circuit 3. Faulty Battery Sensor |
Enable Condition |
•
Engine "ON"
•
No LIN communication related DTCs | |
Threshold Value |
•
Difference between voltage at power supply terminal of ECM and voltage from battery sensor is higher than 3V | |
Diagnosis Time |
•
Continuous | |
MIL ON Condition |
•
- |
