Clock on dash turning off when I turn on headlights - 1994 - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 4 Old 04-25-2002, 01:19 PM Thread Starter
 
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Question Clock on dash turning off when I turn on headlights - 1994

A few weeks ago my clock on my dash started turning off completely when I turned on my headlights or driving lights. When it turns off it keeps the time that last displayed and shows that time when I turn the lights back off. The clock always works when the lights are off. I think it could be a bad connection though, because it will flash on for a few seconds when I have the headlights on sometimes, but immediately turns back off. This is my 94 GT everyday driver, not my race car listed below. Was wondering if anyone else has had this problem or if anyone knew how to fix it.

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post #2 of 4 Old 04-25-2002, 02:33 PM
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I have the same problem, started about a year ago. Try this, if you dim the lights in the interior ( dash, radio, etc. ) the clock starts to flicker and then it will come on completely. I have yet to determine what causes this to happen, possibly a faulty voltage regulator somewhere? Does anyone know how to fix this?


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post #3 of 4 Old 04-25-2002, 05:46 PM
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Not 100% on this, but when you turn on the head lights the clock dims. The clock has 2 lights inside, the bright one when the head lights are off, so you can see it in the sunlight and the other one for when the head lights are turned on, dimmer as not to blind you at night. I think the dim light went out. When I say light, it is not a light bulb per say. There is 1 wire going to the clock from the dash lights, dims & brightens the clock. Since the clock is digital it would be done with a regulator inside the clock. Looks like it is time for a new clock, could get one from a wrecking yard.

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post #4 of 4 Old 04-25-2002, 05:53 PM
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Quote:
Originally posted by 94CobraPace
Not 100% on this, but when you turn on the head lights the clock dims. The clock has 2 lights inside, the bright one when the head lights are off, so you can see it in the sunlight and the other one for when the head lights are turned on, dimmer as not to blind you at night. I think the dim light went out. When I say light, it is not a light bulb per say. There is 1 wire going to the clock from the dash lights, dims & brightens the clock. Since the clock is digital it would be done with a regulator inside the clock. Looks like it is time for a new clock, could get one from a wrecking yard.
You may be right, the only thing is if I turn the dimmer down, the clock turns back on, if you play with it you can get it to flash on and off... almost seems that it won't work if it's too bright? Does that make any sense?

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