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Power door locks not working with door buttons or fob

Tiny
M.J.C.
  • MEMBER
  • 2008 CHEVROLET COBALT
  • 10,000 MILES
The power door locks will not work with the door buttons or the fob. If unlocked when shifting into drive they will lock, when put into park the drivers side will unlock not the passenger side. The locks will sporadically lock and unlock on there own even though I pulled the door lock fuse. Is there a solenoid between the shifter and the BCM? I also think that the actuator on the passenger side may be bad since it does not unlock like the drivers side when put in park.
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Friday, September 21st, 2012 AT 7:52 PM

9 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
The door locks are linked to the "body control module" and this is what you should be looking at.
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Friday, September 21st, 2012 AT 8:20 PM
Tiny
M.J.C.
  • MEMBER
  • 5 POSTS
Does the BCM need to be programmed after install, or if order by the same part number will it already be programmed?
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Tuesday, October 23rd, 2012 AT 3:33 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Yes, a new BCM has to be programmed.
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Tuesday, October 23rd, 2012 AT 6:00 PM
Tiny
M.J.C.
  • MEMBER
  • 5 POSTS
Thank you. Do they need it in the car or can I get it programmed then install it?
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Wednesday, October 24th, 2012 AT 9:02 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
It has to be programmed in-vehicle.
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Thursday, October 25th, 2012 AT 12:53 PM
Tiny
M.J.C.
  • MEMBER
  • 5 POSTS
I figure out what was wrong. The passenger side lock switch was shorting out. I replaced the switch actually I replaced both and the locks are normal now. I have to figure out why the fob does not work for the locks now. The panic and trunk button works fine.
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Tuesday, July 2nd, 2013 AT 8:18 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Since the panic and trunk buttons are working correctly, I believe the button for arming/disarming is bad.
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Wednesday, July 3rd, 2013 AT 6:12 AM
Tiny
M.J.C.
  • MEMBER
  • 5 POSTS
Khlow2008 you are right. I used one of the other buttons and it locked and unlocked. Thanks.
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Friday, July 5th, 2013 AT 4:44 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
You are welcome.

Have a great weekend.
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Saturday, July 6th, 2013 AT 12:30 PM

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