2004 chevy trailblazer- headlights wont come on, parking lights will come on. no blown fuses. battery power is fine. help!!
Was sent in by another poster, just posting his results which fixed mine. Problem was relay $50.00 at GM only.
Check the relay module. 45 or 46. on the engine relay block. you can
swap the two they are the same part number, then you will know. Dont
start the engine, just check the lights. If it works replace the relay
module. You may have to order the part from the parts store. Or go to
the dealer to get it.
I know this sounds ridiculous, but check the bulbs. Has faked out many
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I have the same problem, headlights wont come on, but parking lights work. Fuse OK, Bulbs OK. I will check relay 45 or 46 tonight. Hope this works!!
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