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Old 03-09-2004, 03:22 PM
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s-10 turn signal problem

I have a 1990 s-10 with the digital dash and when I turn on the left directional, it works fine on the exterior, but the whole dash flashes. Now when I have my headlights or parking lights on it will just stick on, both inside and out. All the left directional lights will come on except the front side marker(with the cover of you can barely see the fillament glowing). I replaced that bulb and the flasher and it didn't help. Also when the headlights are off and I hit the brake the whole dash will dim all the way down. I think it may be a ground problem, but not sure where that system is grounded. Any ideas? A wiring diagram may be helpfull if anyone has one.


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Old 03-09-2004, 05:43 PM
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Haynes has full diagrams in the '82-93 S-10 book.

$15 would be cheaper than a fire. Doesn't sound good.

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Old 03-14-2004, 02:41 PM
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having an open ground can cause really weird stuff to happen. A lot of times, voltage will try and find a ground through the computer, causeing really strange stuff to happen. I would inspect underneath the steering column for any kind of funkyness.

good luck.

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Old 03-14-2004, 02:48 PM
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Definately a ground problem....S10s are famous for it. The ground has come loose on the circuit board that the guages fit into.
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