The 4WD ECM monitors the battery voltage to determine, as a safety issue, whether this system can operate normally or not. The normal battery voltage range is essential for controlling this system as intended.
4WD ECM sets this code and turns on warning lamp if excessive low voltage caused by faulty alternator or poor connention in power supply circuit is detected.
Item | Detecting Condition | Possible cause |
DTC Strategy |
•
Battery Voltage Monitoring |
•
Open/short in power circuit.
•
Faulty ground circuit
•
Faulty charging system. |
Enable conditions |
•
Engine "ON" | |
Threshold value |
•
When the usual voltage is lower than a normal value | |
Fail Safe |
•
lamp "ON" |
Bat. Voltage | IG Key ON | ENG. ON |
Approx. 11.8 [V]~12.5 [V] | Approx. 12.5 [V] ~ 14.5 [V] |
