Last post on Apr 08, 2013 at 9:06 AM
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Chevrolet TrailBlazer, Chevrolet TrailBlazer EXT, Electrical, SUV
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#129 of 284 Re: 2006 Chevy Trailblazer Electrical Short [burdawg]
Feb 17, 2010 (10:28 am)
I also had to replace the camshaft position sensor which is a small device with a short wire that sits on the top of the motor. This is not active when the car is off. The only burn problem I have had is the small wire harness inside the headlights. It actually burned off the bakalite connector.I don't know when this happened as I discovered it when replacing a "failed" headlight bulb.
#130 of 284 Re: 2006 Chevy Trailblazer Electrical Short [nutrinoman]
Feb 17, 2010 (3:54 pm)
Okay, in regards to the electrical burning part. I was informed this morning that my Electronic Brake Control Module or EBCM shorted out and caught on fire. I was also informed "You're very luck sir because the fuel line runs about 4 inches below the EBCM and that could have burned your house down." I was told to file a claim with my insurance company since this was not a mechanical or parts failure but a freak electrical accident. $3000 dollar repair estimate. I'm not sure I want this POS back in my garage. I'm outside of warranty and I found a list of possible recalls in the future for grounding problems on the EBCM for multiple vehicles within the GM line.
#131 of 284 Re: Electrical Problems--Battery or Alternator or what? [triumph57]
Mar 23, 2010 (7:18 am)
Just wondering if you ever found out what the problem was, I am having the exact same problem.
#132 of 284 Re: Electrical Problems--Battery or Alternator or what? [eckrut]
Mar 23, 2010 (8:44 am)
The Electronic Brake Control Module shorted out and caught fire. GM replaced as a manufacturer defect although my insurance had to cover the initial repairs. Just yesterday I returned the Trailblazer to the shop due to the ABS / Stabilitrac lights coming on again. This was the same set of lights that came on the day before the EBCM burned up. They better figure this out and soon because it's the fifth time it's been in the shop since the original fire.
#133 of 284 Re: Electrical Problems--Battery or Alternator or what? [eckrut]
Mar 27, 2010 (10:49 am)
No, never heard a word or suggestion. Since it was so cold, I ended up unplugging the windows inside the right front door. Thought I was unplugging just that window but none work now. Since it's warming up outside, I need a proper fix. I just know it's going to cost an arm and a leg. Good luck.
#134 of 284 Re: Electrical Problems--Battery or Alternator or what? [minchey]
Mar 27, 2010 (12:04 pm)
#135 of 284 '03 TB EXT LT 4WD V-8
Apr 18, 2010 (2:27 am)
I have had my Tb since Dec '03, my airbag light has been on almost since the beginning...the dealer replaced the instrument cluster at least twice, once on them and once on me....the light is still on...I just ignore it and live with it. While turning 164,500 miles, my 3rd gear clutch pistons began slipping...4500 rpms to do 40 mpg...solution...replace transmission ($3000.00 parts and labor). I need more light at night while doing daily night driving in Pennsylvania....so...QUESTION??? Dare I risk running HID's ? Will they fry my wiring? Will 8000's get me pulled over? R GE Nighthawks a better solution? Can I up grade my headlights to a new one'10 ? I need more light at night....HELP!! (hopefully my rebuilt tranny is a done deal)..thanks
#137 of 284 02 Trailblazer, Electrical Prob
May 11, 2010 (11:21 am)
I own a 2002 Chevy TB, after 6 recalls before my warranty went out, its been a mess. I am currently experiencing what seem to be electrical problems. My air bag light sometimes comes on, my cruise control works then doesnt, my a/c blows cold then doesn't. Its been in and out of the shop for the last 6 days and the mechanic cant seem to figure it out. Check engine light back on after sensors were replaced. The panel for radio seems to get blazing hot when radio is on. Anyone had these problems, if so what did you find out that it could be?
#138 of 284 Re: 02 Trailblazer, Electrical Prob [kimmi4]
May 12, 2010 (7:28 am)
Do you mean that sometimes after you start it certain things don't work, but other times they do? Or do these things just stop working randomly? If it's the first, I would look at the ignition switch.
The hot radio panel was discussed lots of times early on and I expect it's just normal. The heatsink for the output driver transistors may be close to the front, I don't know for sure but it's a possibility.
The A/C has always been quirky on my 02, it has to do with the cooling fan design. It's a long technical explanantion. If the A/C is not working at all that's another story.
The most common reason for a CEL to come on is the fuel cap being loose, crooked, or the seal on the cap being worn or cracked. I found the latter to be the problem on mine. The seal isn't just an O ring but a special grooved extrusion (kind of like an O ring with a lip) that gets small cracks over time. I was able to just turn it over and get another year or so out of it before I replaced the entire cap (couldn't just get the seal). Keep in mind that the CEL won't go off right away on it's own even if the problem is cleared. It will take several start cycles. It can be reset through the OBD connection however.
I've had the airbag light stay on after starting a couple of times in 8 years, but shutting it off and re-starting has always taken care of it.
I don't remember 6 recalls. I remember the wiper motor, tail light bulb socket assembly, and the trans lockout button (which I opted not to do). There was also a few TSB's that were done during service but those aren't "recalls".
Good luck finding your solutions.