So my ABS light, traction control light and brake light came on, they conti nued to turn on and off some short others long periods of time. It has been cols and snowy so I thought maybe it was just some moisture somewhere, I p ut it in a heated shop all day. I should add that everything was still work ing even though the lights were on. I had it scanned and of coarse nothing showed up. I talked to some mechanics and they said check all the grounds a nd connections to the module, I also unhooked the battery checked fuses. I made sure all the connections were clean and put dielectric grease on the m, hooked everything back up and started the truck. This is where it gets g ood, every single possible light on the dash turned on from service air ba g, 4 wheel drive, stabilitrak, abs, traction control etc. I hooked the scan ner up and it said no power train connection and module 2 3 and 4 not respo nding. Then all my gauges went dead, truck still running but every light f lashing. Im sure it could be the module but I don't wanna just start guessi ng. I talked to a GM tech and he thinks it's something with wiring not t he module. Can anybody help me has this happened to anybody else
Major problems
Dec 31, 2015
18 Replies
could be the module but I don't wanna just start guessing. I talked to a GM tech and he thinks it's something with wiring not the module. Can anybody help me has this happened to anybody else
Where did you use dielectric grease ? Surely not directly on the electrical contacts themselves ?
That grease is an insulator.
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You'll need to clean all of it off now.
Perhaps someone else can suggest a good cleaner. alcohol maybe?
My first suspiscion would be a bad ground somewhere. What year and model? Do you have a leaky windsheild??
Yes I was told to put them right on the plug connections, I had my suspicion that the grease might be causing it,
I checked all the grounds and even shined them up, 07 chevy no leaky windshield
it
Dialectric grease is an insulator, yes - but where the connectors contact they scrub the grease off and you get an air-tight connection that works and won't corrode. Very common practice "in the trade"
07 chevy what? Fullsize P/U, van, impala, malibu???
Sorry 1500 pick up
I'm going to go and clean the grease off when I get back from work, hopefully that will be the issue
I'm going to go and clean the grease off when I get back from work, hopefully that will be the issue
I'm going to go and clean the grease off when I get back from work, hopefully that will be the issue
I'm going to go and clean the grease off when I get back from work, hopefully that will be the issue
I'm going to go and clean the grease off when I get back from work, hopefully that will be the issue
Not causing it, the mechanical connection does the job.
I do on all my connections. NP.
Similar to mine.
I wouldn't.
could be the module but I don't wanna just start guessing. I talked to a GM tech and he thinks it's something with wiring not the module. Can anybody help me has this happened to anybody else
Similar thing happened to me, on a Blazer. Cold, snow day. I'd gone to a service call, at a country residence. Bounce up and down the driveway. Gages and lights all going nuts.
Phoned a mechanic friend of mine. He said over the passenger side front wheel is the computer. There are several (I think eight) wiring connections. Each comes off with a blue, I think, thing that snaps out with a screw driver tip. And then the plug releases, and the cable comes out, showing about a 24 pin connector. Spray these with a bit of WD-40 or smear some dielectric grease on the open ends of the wiring harness. Put them back together and push in the blue clips.
Worked, for me. Best wishes, and happy new year. How's your hangover?
The connectors go metal to metal, and they work fine. I've used dielectric on plenty of connectors over the years.
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