If the 4WD ECM detects that there is an overcurrent in the Motor Pump circuit, it sets P1820 and lets a warning lamp turn on.
Item | Detecting Condition | Possible cause |
DTC Strategy |
•
Monitoring current in the motor pump circuit | 1. Poor connection 2. Open or short in the circuit 3. Internal error in the coupling |
Enable conditions |
•
Engine " ON " | |
Threshold value |
•
The current in the motor driving circuit > 25A | |
Detecting time |
•
Immediately | |
Fail Safe |
•
Prohibition for 4WD control |
