Question about 2001 Dodge Ram 1500 Truck 2WD
The dash lights just stop working and all the fuses are still good. What could it possible be?
Check to see if the reostat for your dome/dash lights is not turned all the way down.The headlight switch controls the dash lights.
Posted on Feb 15, 2009
I just read somewhere that there may be another fuse box in the trunk, depending on your model. I'm trying to diagnose and fix this exact problem right now. I've already replaced the dimmer switch with one from the junkyard, but it didn't work. If you figure this out please let me know!
Posted on Jul 01, 2009
sounds like a broken wire in the harness. look around the bumper area,sometimes along the frame. may have to peel back some tape covering. also if you have a trailer harness look closely at those.
Posted on Jun 04, 2009
you have to check all fuses with a test light both fuse boxes under hood and under dash... if good next to look for is the light switch itself... has any radio work been done to the lately... if so alot of times hooked up wrong will blow park fuse as one of the wires to radio is the park voltage to tell radio to dim down some
Posted on Sep 06, 2009
SOURCE: Dash lights will not work?
Check that your tailights/parking lights are working (not the headlights) as this fuse and relay feeds all the instument lights too.... Fuse 15amp TAIL & Tailight Relay
If not then check:
The rheostat (also known as the dimmer switch) may be faulty
as it controls all the illumination of all the backlight bulbs and other dimable switches/indicators.
In general bulbs all together draw a fair amount of current so it is possible that the wiring or ground at the major supply junction feeders has failed but that is a less common problem.
So check the rheostat dimmer wiring area first as all illumination power goes through it.
There is further simple testing we can do with the three wires at the rheostat you can check the entire illumination system.
If you jumper the white/blk to the white/blk all the illumination lights should come on (that means the rheostat is bad).
Or use a voltmeter and measure the green rehostat wire to ground it should be 12volts (if not time to check the fuse, relay and wiring)
If not then finally declare the instrument panel faulty (like burned up circuit board trace).
Note of interest: the rheostat also controls (dims) other switches not associated with the instrument cluster such as the cigarette lighter bulb and hazard switch and radio player and A/C control switch. So if those are dimming but not the instrument panel backlights then yes the instrument cluster needs fixing or a very close wiring inspection.
Posted on Oct 04, 2009
I have a 91 lincoln town car. When I turn on the head lights the dash lights go out, turn the head lights back off dash lights come on?????????
Posted on Jul 22, 2010
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Posted on Jan 02, 2017
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