Only Back Door Lock / Unlock Functions Do Not Operate

DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: Only Back Door LOCK / UNLOCK Functions do not Operate

Only Back Door LOCK / UNLOCK Functions do not Operate

DESCRIPTION

The main body ECU receives lock / unlock switch signals and activates the door lock motor accordingly.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT BACK DOOR WITH MOTOR LOCK ASSEMBLY





(a) Apply the battery voltage to the door lock motor and check the operation of the door lock motor.
OK:






NG -- REPLACE BACK DOOR WITH MOTOR LOCK ASSEMBLY
OK -- Continue to next step.
2. CHECK WIRE HARNESS (DOOR LOCK - ECU)





(a) Disconnect the Q7 door lock connector.
(b) Disconnect the IH junction block connector.
(c) Measure the resistance of the wire harness side connectors.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU)