Question about 2008 Chevrolet Avalanche
Power door lock won't work on drivers door can only be locked/unlocked manually
Posted by Anonymous on
I had the same problem but on the passenger side door. The wire harness on the passenger side had broken wires. Purple wire was for the lock and thicker blue and darker grey was power for the windows. I used butt connectors to repair and it worked like a charm. Area was tight to work in between vehicle frame and door. Was easier to remove door panel and disconnect harness at vehicle frame and pull harness through door to complete the repair.
Posted on Jul 07, 2013
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Posted on Jan 02, 2017
SOURCE: door locks and power window
Just did this procedure I got from coloradofans.com forums:
"any type of power/voltage change seems to trigger this issue
The most common symptom is power locks fail and only the driver window quits, however that is on the extended cab.
Steps to fix and it works every time.
take door panel off driver's door
Disconnect the wiring attached to window and power lock control unit
disconnect battery cables
connect the negative to the positive cable(((NO BATTERY CONNECTED)))
This will act to short residual voltage in the system
5 minutes later
place the key in the ignition and turn to the run position
connect the wiring to the window/lock controller
connect the negative cable to the battery
then the positive
open drivers side door
turn key to the off position((do not remove yet)) you should get a series of dings through speakers telling you the key is still in the ignition
once it begins dinging pull the key out and you should hear the door lock solenoids trigger and the windows should work." - Coloradofans.com forums
Posted on Mar 20, 2010
your issue involves the master control switch panel on the drivers side and or the passenger side as well some how the contact inside the switch assembly has either shorted out or no longer makes contact for the unlock side of the circuit. replace the drivers side panel switchs it's either a series of switc hs or mostimes one sigle board of switchs. you are better off going to an auto parts store rather than a GM dealership this will save you quite a bit on cash on the parts. now as to the rear tailgate. if it is electronic controled and there is an issue with the master switch you can,t manually unlock it because of a safty issue built in the system. you can manually unlock the passenger compartment doors for thew same reasons of safety but doesn't apply to the tailgate. just replace the parts and this will take care of the problem
Posted on Apr 18, 2009
Passenger side of the fender under the hood - check the fuse relay box - about $12.00 a piece - they do go bad from time to time.
exchange the power lock relay with another one and test the locks.
then put the relay back and go to the autostore.
Posted on Aug 12, 2009
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