gauge illumination issue
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Junior Member
Joined: Apr 2011
Posts: 99
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From: Arlington, Tx
Car: 1988 T/A
Engine: 305 TBI
Transmission: 700r4
gauge illumination issue
After I installed my new radio, none of my gauge illumination lights come on when I turn my headlights on its pitch black only my turn signals and warning lights come on and the fuses are all good
88TA
88TA
Joined: Aug 1999
Posts: 19,282
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: gauge illumination issue
Supreme Member
Joined: Jan 2006
Posts: 3,341
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From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Light Fight
Originally Posted by ROADKILL76
I have no power at the fuse......
If the parking lamps illuminate, your problem is a bad connection FROM the switch internals where the connection is made to the potentiometer TO the input side of the aforementioned fuse.
Using a voltmeter or test light (the type for testing for voltage, not a continuity tester) probe the green wire at the headlight switch when the parking lights are on.
Is there power there?
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Thread Starter
Junior Member
Joined: Apr 2011
Posts: 99
Likes: 0
From: Arlington, Tx
Car: 1988 T/A
Engine: 305 TBI
Transmission: 700r4
Re: gauge illumination issue
So I found out I'm an idiot and missed the gray "illumination" wire that was stripped and sitting off to the side in my radio pod for some reason. What could that've shorted out?...
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Supreme Member
Joined: Jan 2006
Posts: 3,341
Likes: 10
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Light Fight
Originally Posted by ROADKILL76
yes it does have power at the switch but still no lights
For example, a broken or disconnected wire.
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I Hit The Water Barrels Because My Car Was Dirty
Thread Starter
Junior Member
Joined: Apr 2011
Posts: 99
Likes: 0
From: Arlington, Tx
Car: 1988 T/A
Engine: 305 TBI
Transmission: 700r4
Re: gauge illumination issue
Does the gray illumination wire HAVE to be connected for the dash lights to work? My pioneer doesn't have an illumination wire
Supreme Member
Joined: Jan 2006
Posts: 3,341
Likes: 10
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Light Fight
Originally Posted by ROADKILL76
Does the gray illumination wire HAVE to be connected for the dash lights to work? My pioneer doesn't have an illumination wire
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