Question about 1999 GMC Jimmy
I have a problem with my 1999 GMC Jimmy. At night with my headlights turned on, the light which illuminates the speedometer and tachometer does not come on but the led lights work fine. I discovered that I can get the light to come on when I turn on the dome light or other overhead map lights. What can the problem be and how do I fix it?
I have a buddy with a Jimmy and his lights did something similar, but once the dash illumination quit, nothing would make them come back on. We ended up replacing the entire light switch assembly, and it fixed it. We assume the dash illumination dimmer switch was shorted out. You may try getting a can of contact cleaner and taking the switch out and spraying all electrical connections related to your lighting to clean them up, THEN look into a new switch if that doesnt help. Hope this helped!!
Posted on Oct 26, 2012
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Posted on Jan 02, 2017
SOURCE: 1994 gmc safari
When you say you 'lose instrument panel', does that mean instrument panel lighting or the gauges go dead?
When you flip off the headlights, does the instrument panel come back? If it does, forget the fuse box.
If it's the instrument lighting, I'd be looking at headlight switch itself. In Safari's, the headlight switch and panel dimmer switch reside in one assembly. Coincidence? I think not.
I recommend replacing the switch. You can find one at a salvage yard for $5.00.
When you do the replacement, inspect the plugs and wiring attached to the old one for anything suspicious (loose wires, frayed insulation, bare wire, charred wire, etc.)
Let me know how it turns out.
If this works out for you, please take a sec and rate my solution.
Posted on Jul 15, 2008
well we just fixed our truck it was a wire that connects to the starter had some out! might want to see if there are any wires disconnected there
Posted on Dec 31, 2008
there is a plug at the back of the radio connecting it to the vehicle wiring loom. If you can get at thes plug, either from below or by removing the radio unit, make sure the plug is tight and secure. I can't think that the amp has gone or you would have lost all sound, so this is more than likely the problem.
Posted on Jul 11, 2009
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