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2004 Buick Ranier Pwer Door Locks

Tiny
HDMCINTYRE
  • MEMBER
  • 2004 BUICK RANIER
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 56,000 MILES
When using either the door switch or the remote, the two rear doors will not lock. However, if you lock them manually, they will unlock using either the door switch or the remote.
Sunday, September 27th, 2009 AT 6:45 PM

3 Replies

Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Ok looking over the wiring diagram I see that the rear doors have their own lock and unlock relay. So I would check the lock relay for the rear doors. It is located in the rear fuse block under the left (drivers side) rear seat. It is relay number 18. If you have a multi meter or test light you can check it. Simply back probe the gray wires that go the locks (the gray wires are the lock side) hit the lock on the switch and see if you get power. If you don't get power then the relay is bad just replace it and it should work again. Thanks and let me know how it goes.
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Friday, October 2nd, 2009 AT 9:04 AM
Tiny
HDMCINTYRE
  • MEMBER
  • 2 POSTS
It was a bad connection on the gray wire. Probably wouldn't hace found it without your help. Thank You!
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Tuesday, October 6th, 2009 AT 10:56 AM
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Great glad to hear that it is working again. Thanks for your support and if you have any other questions just ask.
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Wednesday, October 7th, 2009 AT 10:16 AM

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