If the power voltage for 4WD ECU is lower than a normal value, the 4WD ECU sets P1781 and lets a warning lamp turn on.
Item | Detecting Condition | Possible cause |
DTC Strategy |
•
Checking a power supply voltage | 1. Poor connection 2. Open or short in the power supply circuit 3. Open or short in the charging circuit |
Enable conditions |
•
IG " ON " or Engine " ON " | |
Threshold value |
•
The battery voltage is lower than 8.7V | |
Detecting time |
•
1 second |
