Other information:
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Recover the refrigerant with a recovery/recycling/charging station.
3.
When the engine is cool, drain the engine coolant from the radiator ...
Circuit Diagram
4WD ECU Connector
4WD ECU Terminal function
Pin
Function
1
CAN communication line (Low)
2
CAN communication line (High)
3
-
...