dmuldrew
Member
- 33
- 5
- 8
- Location
- Memphis, MO
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Bad ground where, battery, lights, body? not much of a wrench turner but I can sure replace parts! BTW they have worked in the past.Check the dimmer switch. Bad grounds can cause that, or you may be in "bright" and that sidefof the relay failed.
Please keep us informed.
PS... that is a BEAUTIFUL truck!
Things fail over time... it happens.Bad ground where, battery, lights, body? not much of a wrench turner but I can sure replace parts! BTW they have worked in the past.
Yeah I tried bright and dim both and nothing. Dimmer switch looks easy to replace. I'll read over that thread. ThanksThings fail over time... it happens.
Silly as it sounds, have you turned the headlights on and switched from bright to dim/vice versa? That's the easiest way to check the dimmer switch, and I have spent hours in my youth troubleshooting lights and that was the issue. In fact, there is this thread where a young man went through DAYS of tracing wires, connections etc on his deuce and it turns out it was his dimmer switch..... and his trouble was identical to yours.
Try applying the advice in that thread to your Hummer and see if that helps. (Start with the dimmer switch, that was that young man's issue).
Please keep us updated.
Yeah I have no idea how to use a multimeter. I believe I have one my brother gave me when he upgraded, he failed to school me on its useOh, and "replacing parts" is an EXTREMELY expensive way to troubleshoot.
Learning your tools and vehicle will save you so much money and it really does give you piece of mind knowing your vehicle electrically and mechanically.
If you have any questions about electrical troubleshooting (how to use a meter etc) feel free to PM me. We all have to learn somewhere and it's always best to ask and learn before tearing something up.
Technical manual section.
Light switch
I'm guessing/ hoping you actually have the switch in the right position.
Open the hood and see if the wiring harness is connected.
Perhaps your buddy removed the hood and forgot to hook the head light wiring harness back up?
Once again, the internet is your friend:
If the ground harness seems to fix the issue for you, that means you really need to go through the truck and clean up all your ground points.Not much progress today, back to work. I did look over the headlight harness, and yes they are attached. Altho the ends of the wires that connect to the lights are in horrible shape. Can those ends be bought? Any suggestions how to deal with this issue.
Ive decided the first thing I will do in this great adventure is instal a ground harness. I'll see what happens, and proceed from there. Stay tuned.....
Thank you very much!TM'S are located at top of the main screen, under "present conflict vehicles", then go to page last page of items and it will list m998, click that and there will be a multitude of pdf's to open. Some are operator based, maintenance based and parts based.