Question about 1997 Chevrolet S-10 Pickup

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!997 Chevrolet S10 headlight problem

Been there done that. Lights still went from low or high beam to no daytime running light when I took the fuse out. I also tried to hot wire across the relay and that didn't help. Any other suggestions? Know where I can get a copy of the headlight wiring diagram anywhere?

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I have had the same problem with my 97 S10. I looked at the GM iring diagram and found that the headlight circuit runs directly through the main headlight switch with no fuse or relay at all. The high low beam switch cannot shut the circuit off completely and therefore make the clicking relay sound that is heard. The daytime running light module looks for a headlight on signal and therefore shuts off the running lights. So when the headlights cut on and off the clicking you hear is the day time running light relay, turning them on thinking you are shutting the headlight switch on and off. Inside the headlight switch itself is a thermal metallic circuit protector similar to whats inside a flasher switch. This is the only logical place for the headlight circuit to cut out since it is a directly wired circuit as explained before. Replace your headlight switch for less than 20 bucks from autozone.

Posted on Oct 27, 2008

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Ya know it kinda sounds like the headlight switch that switches from high beam to low beam has a bad contact. You don't have one of those 4-beam modules that turn on all 4 lights on high beam do you? that thing screwed my whole headlight system up, I ended up throwing it in the trash.

I have the chiltons and haynes manual, I'm sure between the two we'll find a good diagram. I gotta get my youngin to open house at school, but I'll pull the books out and send you the wiring diagram.

Posted on Aug 07, 2008

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Visual Inspection Chart Mechanical Electrical
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Well, where to start...
First there are 4 different headlamp systems available for 2001 Dodge Ram 1500.

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So providing you with an EXACT flow chart of what happens depends on which system your truck is equipped with.

However, the general jist of it goes like this:

The Violet wire you mention is your power feed to the bulbs (high beam and low beam elements) from the headlamp fuse (HOT AT ALL TIMES). The dimmer switch basically determines which of the two headlamp elements is going to get grounded to complete the circuit. When the Violet/White wire gets grounded, that is low beam. When the Red/Orange wire gets grounded, that is high beam.

Just a little "Automotive Electrical Systems 101":

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I would check the switch which is separate from the module that controls the daytime running lamps.
Check for fuses blown for the headlamps.

Also, check for the relay operation by following the wires back to it, if so equipped.

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If you have daytime run lights, the following may be of help.

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It may be possible to disable the daytime run lights by cutting the yellow wire going into the module and then connecting it to ground. Tape off the other end.


This will help. Thanks please keep updated.please do rate the solution positively .thank you for using fixya

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