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2012 GMC Canyon Electronic Problem Caused by Leaking?

Tiny
TYAZZ
  • MEMBER
  • 2012 GMC CANYON
  • 3.7L
  • 5 CYL
  • 4WD
  • AUTOMATIC
  • 33,600 MILES
Whenever it rains, for the next few days, my truck thinks my door is open. This causes my interior and bed light to stay on. Sometimes while I'm driving, my doors will lock and unlock constantly. I removed my door panel to find wet wiring. I'm not positive this is the problem, but it makes sense. The weather stripping had a few holes from breaking in with a coat hangers, so I sealed them with Flex Seal. That didn't help. My next guess is the water is riding the seal the houses the wiring harnesses located in the doors hinge. What should I do?
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Wednesday, March 25th, 2015 AT 6:37 PM

12 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Have you tried moving the door around in the closed position to see if the light flickers with the key in the run position?
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Wednesday, March 25th, 2015 AT 8:00 PM
Tiny
TYAZZ
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  • 56 POSTS
I tried that. Nothing happens. There's no play in the door. It's closed tightly.
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Thursday, March 26th, 2015 AT 4:01 AM
Tiny
SATURNTECH9
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Let me see if the door switches are part of the latch or a seperate switch. So we can jump the switches to see which one I ls causing the problem. Sotimes its a matter of the switch not being pushed all the way in when there seperate this can happen. Also have seen water get in them and cause issues when it rains like it sounds like could be happening in your case.
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Thursday, March 26th, 2015 AT 6:41 AM
Tiny
TYAZZ
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  • 56 POSTS
Do you need me to take the door panel off and take a picture of the door latch switch or are you going to look it up yourself?
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Thursday, March 26th, 2015 AT 8:26 AM
Tiny
SATURNTECH9
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Iam going to look it up iam at work right now.
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Thursday, March 26th, 2015 AT 1:00 PM
Tiny
SATURNTECH9
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Looks like you have seperate door jamb switches there located on the body of the truck that the door goes up against it when you close the door. They just pop out with some side retaining clips you just push in a little on each side of the switch. While rocking the switch forward. See if its got water in any of them also make sure your switches dont have any screws holding them in you never know.
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Thursday, March 26th, 2015 AT 1:21 PM
Tiny
TYAZZ
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  • 56 POSTS
I found the switch you're referring to. It may be the problem. I was playing with it, watching it change the notification on the dash and turn the interior light on and off. Then, it stopped working. I unclipped it and there's corrosion and rust. The rubber seal around it wasnt flush against the truck. Without it connected, my truck doesn't say the door is open, also doesn't know when it is open. I'm going to head to the store and see if they have any.
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Saturday, March 28th, 2015 AT 10:05 AM
Tiny
SATURNTECH9
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Sounds like you found the problem let me know how it goes when you replace the switch.
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Saturday, March 28th, 2015 AT 11:12 AM
Tiny
TYAZZ
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The bad news is, I can't get the part at any local stores or have it ordered in. I'm sure I can find it online somewhere though. The good news is, without the door jamb switch connected, my interior light stays off. For me, the light staying off is far less inconvenient than it staying on. Thank you for the help. You da man!
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Tuesday, March 31st, 2015 AT 2:54 AM
Tiny
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Look at the switch I posted a picture of does it look like that?
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Tuesday, March 31st, 2015 AT 7:07 AM
Tiny
TYAZZ
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  • 56 POSTS
Yes. That's it. Like $8 at Advanced if it were in stock.
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Tuesday, March 31st, 2015 AT 7:08 AM
Tiny
SATURNTECH9
  • MECHANIC
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The ac delco number is D6075A if you want to try to find one on ebay or something. Glad I could help thats what were here for.
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Tuesday, March 31st, 2015 AT 7:16 AM

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