DIC AND COMPASS PROBLEMS - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 12-27-2002, 06:53 PM   #1
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Default DIC AND COMPASS PROBLEMS

HI, I have a 90' Bonneville SSE and my DIC and Compass only come on half the time, and when they do come on they only come on at half brightness. I have tried all fuses under the dash, and the fuses behind the glove compartment. what else could it possibly be?

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Devon
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Old 12-28-2002, 02:23 PM   #2
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It sounds like you have a problem with the circuitry that dims the VF displays, or the wiring to or from it. When your headlamps are on, those displays should be at half brightness.
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Old 02-08-2003, 12:58 PM   #3
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Is there a relay for them? because they do dim when you turn on the headlamps even more, sometimes shuting them off completely... I would really like to get them working at full brightness.
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Old 02-08-2003, 04:02 PM   #4
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Turn the headlamps on. What happens when you spin the dimmer dial up and down? How do the rest of the red interior lamps respond? How do the VF displays respond?
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Old 02-08-2003, 04:09 PM   #5
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everything dims properly except the climate control... the DIC and Compass do dim further, and when you turn the dial they go further, until they shut off...
but the strange thing is that they sometimes they work 100% perfect.

Devon
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Old 02-08-2003, 04:16 PM   #6
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I know the 92-99s have a problem with those same displays. I'm not sure where the circuitry is for the VF displays in the 90. You need the wiring diagram from the factory service manual. On my car it is inside the instrument panel, which means the whole panel would have to be replaced. The climate control VF dimmer is actually inside the radio on 92-93 models.

But, on yours, I'm not sure. Wherever it is it sounds like the wiring to or from it, or the circuitry is going bad. Your headlamp dimmer switch and its wiring seem to be fine.
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Old 02-08-2003, 04:32 PM   #7
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Does anyone have the wiring diagrams for my 90 SSE? i would really like to get theses working soon. its not a really big deal if i have to replace the instrument panel, but b4 i do, i would like to make sure it is that...
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Old 02-11-2003, 02:09 PM   #8
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This is where I would send my instrument panel to be repaired. These guys do GM work. Possibly they can answer questions.

www.unitedradio.com
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