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Hi beam troubleshooting 2000 chevrolet cavalier low beam lights work running lights and high beam lights donot also the hi beam light on dash comes on fuses are ok and replaced hi beam light. also the check service lt came on as well thanks
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The headlight relay provides power to the dimmer relay, then power goes thru a fuse for each light for each circuit (4). The low beam fuses are in fuse block 2. The dimmer relay is controlled by the daytime running light module. The headlight and dimmer switches send signals to the DRL module. You may need a shop manual to troubleshoot the circuits.
First, be sure that the headlights are actually coming on. These cars have daytime running lights that use the headlight bulbs at a lower voltage. If the car is only using the daytime running lights, the tail lights will not be on with the headlights. The multifunction lever always turns on the high beams when you pull on it (it's called 'flash to pass'). Make sure the headlight switch is working, and also check the headlight circuit breaker.
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.
next would be to check the hi-lo beam switch, play with the lever and see if you can get them to flicker, if so, replace the hi-lo beam switch (combination switch)
the daytime running lamps are the high beam bulbs connected in a series which puts a lower voltage to them causing them to appear dimmer. if your low beams are not working i'd start by checking the bulbs to make sure they're not just burnt out. then check the fuses. if that doesnt work let me know and i'll help you trouble shoot it further
Solution was a corroded pink wire out side the his impacted the running lights as well as the high beam. note the low beams worked okay.
thanks
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