Question about 2003 Chevrolet TrailBlazer
Gauges on dash do not work abs light on air bag light on battery light on shifter selector lights up does not indecate what gear its in
Your alternator probably is not charging please have checked to see if charging auto zone will do this for you.
Posted on Feb 19, 2009
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Posted on Jan 02, 2017
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Your shifter is a column shifter, not a floor shifter, right? Is the headlight switch mounted on the steering column? If so, then this "combination switch" may be the problem. If not, start looking for loose wires, especially ground wires, around the steering column area and the headlight switch area.
It would also be a good idea to get access to a wire diagram from a factory repair manual and find out if GM had any Technical Service Bulletins addressing this problem. If I get a chance, I will ask around and see if any of my co-workers ever heard of this problem.
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