STEP 2. Wiring harness check
(1) Check the wiring harness between the AWC-ECU connector (terminal FSL+, FSL-) and the electronic control coupling solenoid connector (front) for damage or other problem.
(2) Check the wiring harness between the AWC-ECU connector (terminal SOL+, SOL-) and the electronic control coupling solenoid connector (center) for damage or other problem.
(3) Check the connector(s) or terminal(s) or wiring harness above for damage or other problem.
Is the check result normal?
Go to Step 3. Repair the connector(s) or terminal(s) or wiring harness.