Diagnostic Procedure

DIAGNOSTIC PROCEDURE

Step	Inspection		Action
1	Inspect the door lock/unlock operation using the transmitter. Does it operate normally?	Yes	Inspect the following parts, and repair or replace. BCM (See BODY CONTROL MODULE (BCM) INSPECTION ). Keyless control module (Vehicles with advanced keyless system) (See KEYLESS CONTROL MODULE INSPECTION[ADVANCED KEYLESS SYSTEM] ).
1		No	Go to the next step.
2	Inspect the open/close condition of the doors and the liftgate. Is the reason why they do not lock/unlock because a door or the liftgate is open?	Yes	System is normal (Does not operate when a door or the liftgate is open).
2		No	Go to the next step.
3	Verify whether the key is in the steering lock. Is the reason why they do not lock/unlock because the key is inserted in the steering lock?	Yes	System is normal (Does not operate when the key is inserted in the steering wheel lock)
3		No	Go to the next step.
4	When the lock/unlock operation does not operate for reasons other than the above Steps 2 and 3.	Yes	Inspect the following parts, and repair or replace. Keyless control module (See KEYLESS CONTROL MODULE INSPECTION[ADVANCED KEYLESS SYSTEM] ). Wiring harness between keyless control module and BCM.
4		No	Reinspect for malfunction recurrence. If the malfunction is not corrected, repeat the procedure from Step 1.