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Door locks not working properly

Tiny
MARK VOLK
  • MEMBER
  • 2000 GMC SIERRA
  • 0.6L
  • V8
  • 4WD
  • AUTOMATIC
  • 186,000 MILES
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.
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Wednesday, April 7th, 2021 AT 1:40 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 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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Wednesday, April 7th, 2021 AT 2:35 PM

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