Door locks not working properly

2000 GMC SIERRA

186,000 MILES • 0.6L • V8 • 4WD • AUTOMATIC

MARK VOLK

MEMBER
1 POST

When I put my truck in drive the door will not lock it self for a minute or two when we are driving it. When we stop and put in park it will not open the lock have to unlock have to use electronic lock button. I also cannot get it program to reprogram my new remote lock key.

Apr 7, 2021 at 1:40 PM

ASEMASTER6371

✓ASE Certified Mechanic
52,796 POSTS

Good afternoon,

The body control module. controls the operation of the door locks in gear.

Good possibility the body control module is bad. I attached a wiring diagram and high lighted the wires for the locks. You need an advanced scan tool to monitor the operation of the locks.

https://www.2carpros.com/articles/how-to-check-wiring

I attached the procedure for replacing and programming for you if it is the BCM.

https://www.2carpros.com/articles/how-to-replace-a-bcm-body-control-module

Roy

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Professional Diagram for 2CarPros Members
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Apr 7, 2021 at 2:35 PM