MAIN LINE BETWEEN 4WD AND BCM CIRCUIT

1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side).
• Harness connector B201
• Harness connector M117

YES>>GO TO 2.

NO>>Repair the terminal and connector.

1. Disconnect the harness connectors B201 and M117.
2. Check the continuity between the harness connector terminals.
   

   Connector No.	Terminal No.		Continuity
   B201	70	62	Existed
   	69	61	Existed

   
   

YES>>GO TO 3.

NO>>Repair the main line between the AWD control unit and the harness connector B201.

1. Disconnect the connector of BCM.
2. Check the continuity between the harness connector and the BCM harness connector.
   

   Harness connector		BCM harness connector		Continuity
   Connector No.	Terminal No.	Connector No.	Terminal No.
   M117	70	M122	91	Existed
   	69		90	Existed

   
   

YES (Present error)>>Connect all the connectors and diagnose again. Refer to Trouble Diagnosis Flow Chart.

YES (Past error)>>Error was detected in the main line between the AWD control unit and the BCM.

NO>>Repair the main line between the harness connector M117 and the BCM.