SOURCE: !997 Chevrolet S10 headlight problem
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.
SOURCE: DRL and High Beam do not work right on Honda Accord EX 1998
Some time back I found some data on a similar website suggesting that the Day Light Running circuit board, just under the steering column, developed cracks in some of the soldered joints. Your high beams should also be affected with loss of day light running lights.
Resoldering repaired the continuity of the circuits. Ours is now working quite reliably. Some of the defective areas developed slight brownish discoloration, that's how I was told to recognise the areas to be resoldered. Hope this will help you solve your problem.
SOURCE: 1997 Chevy S10 pickup Fan switch for heater runs on high only.
replace the blower motor resistor located on the heater box were the blower motor is located the wiring to the blower may go to it. This is very easy to locate if you buy the part first.
SOURCE: i have a 2003 chevy cavalier. headlight issue
The blinking light is telling you that you have a headlight out, if you look the service light should be coming on when the light stops blinking.
Replace the head light and all should be fine.
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