Question about Chevrolet TrailBlazer
Power locks will not lock when taken out of gear and interior lights will not shut off. What could be the cause?
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Posted on Jan 02, 2017
Most likely is a fuse. There is a fuse box at the end of the right side of the dash. Open front passenger door and there is a cover that says fuses on the end of dash. There is also a fuse box located under the hood at the right front of engine compartment. It should have a cover with a round knob in the middle of it .Unscrew the knob to remove cover.
Posted on Feb 18, 2009
The drivers power window switch is also a computer. I have found a broken wire in the pass through loom between the drivers door and body.
Posted on Feb 26, 2009
SOURCE: power locks not working right
Hey, this might work.....get in truck, close doors, put key in ignition in lock position.....hold down the door lock button on driver side door control and wait for the lock control to be displayed on the information screen(odometer read-out).....it should say like lock 1, lock 2, lock 3, lock 4.....or something, I always reset mine to LOCK 1, to do this hold the odometer reset button on dash for a sec or two til it changes settings, then release, repeat till you get to LOCK 1, then quickly press and release odometer reset button to exit program, this is the function to lock doors over 15 mph and when out of park and to unlock doors when returned to park......yours' might be set to another function number....try it out, let me know if this helps.........good luck!
Posted on Mar 06, 2009
i've got the same problem. i've taken it to 2 shops, a master mechanic, and visited the dealership [$$$$]. your body control module [bcm] has an issue. it's the computer behind the fuse pannel. you can TRY to update the driver at the local dealership, but that will run you about $100, and there's no guarantee. worst case, you have to buy a new one from the dealership- $300-400 is what i was quoted. don't bother with a junkyard, as the computers are vin specific and you would still have to pay the$100 to 'reflash/reprogram' it.. but doing that only updates the driver, if applicable, and matches the computer's vin with the vin on your car. once these computers are formatted, they can not be 'wiped' or 'rewritten'. you're gonna have to either deal with the accessories not working, or fork out the $ for a new one. sucks, huh?
Posted on Jun 09, 2009
This is as a result of a short occurring most likely in the radio harness.
It happened me while working on a customers car. In my case checked all fuses and they all appeared fine, both those under the hood/bonnet and those underneath the steering wheel.
After studying the workshop electrical schemmatics for the car it appears that the clock, interior lights, central locking receiver and radio permanent live/battery are all on the one line.
In effect damage had occurred after the internal fuse panel, therefore all fuses were ok and supplying power across them, but at some point after there was a break in the wire.
However you DO NOT need to remove dash and or replace harnesses to rectify.
Look at the fuse panel underneath the steering wheel. Slot 18 (bottom RHS) and you will see in raised plastic 'BACK UP'. Inserting a 10A fuse here will restore the interior lights, radio, clock and your central locking.
There is a small plastic piece in the way which prevents a fuse going in. Simply use a thin pair of pliers, scissors or a screwdriver (or similar tool) to break this and all pieces of it away until you are able to insert the 10A mini blade fuse.
(I believe the fact this back up exists is because the designers of electrical system at mitsibushi realised it had shortcomings or this would be a potential problem - and included the back up for such an occurence)
(7 years experienced auto electrician & owner of Car Audio company in Perth Western Australia)
Posted on Sep 17, 2012
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