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Door locks not working

Tiny
BRYANC
  • MEMBER
  • 2006 PONTIAC GRAND PRIX
  • 90,000 MILES
Power door lock problems it started with the rear drivers side door not unlocking then the passenger rear door not unlocking then a few weeks later the passenger front door not unlocking. They won’t unlock with either the remote key unlock button or the unlock button on the doors. The doors will lock correctly. I find it hard to believe the lock actuators in three doors went bad. Any ideas where to start? Thank you Bryan
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Thursday, January 5th, 2012 AT 1:38 AM

6 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,833 POSTS
Hello,

It looks like you have a BCM that is going out because it controls all of the doors but to be sure lets check the fuses that run the system.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

If the fuses are good then you will need to get the new BCM programmed by a shop. Here is the BCM location and the fuse panel diagrams. Check out the diagrams (Below) Please run this test and get back to us.
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Sunday, December 24th, 2017 AT 12:01 PM
Tiny
BEARHOUNDOG
  • MEMBER
  • 0 POST
Thanks for this post I had this problem and had to get a new BCM cost me $340.00 all set. I love this site.
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Monday, July 1st, 2019 AT 4:27 PM
Tiny
WADERK
  • MEMBER
  • 1 POST
  • 2005 PONTIAC GRAND PRIX
  • 107,325 MILES
I just replaced the power door lock actuator and it still
does not work. All of the other ones work. Just the rear passenger
one does not work.
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Monday, July 1st, 2019 AT 4:27 PM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Have you checked to see which your missing at the door lock actuator connector power or ground when locking or unlocking the door?
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Monday, July 1st, 2019 AT 4:27 PM (Merged)
Tiny
VOOTSJKV
  • MEMBER
  • 1 POST
  • 2001 PONTIAC GRAND PRIX
The door lock button on my drivers side door does not work. The key fob locks the door, and the door locks when I put the car in gear. What might be wrong with the button on the door and is there a way to fix it myself?
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Monday, July 1st, 2019 AT 4:27 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
They have plastic clips that hold them to the door lock connection. Alot of times those clips break and the linkage doesn't work any longer. You need to remove the door panel to get the clip to fix it. The clip costs about a quarter.
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Monday, July 1st, 2019 AT 4:27 PM (Merged)

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