Question about 1991 Chevrolet Caprice

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Headlights turn on but will not switch from hi to lo, I know both bulbs work because I manually switched the red wires behind the bulb and can physically change it from high to low assuming my problem lays in the steering column I've checked and everything looks fine.... Next idea was to check the headlight relay which I cannot locate, I've checked online some say its in the light switch, some say there is 2 realays 1 for high beam...1 for low beam (and that's why I can only get one on at a time, possible relay issue) but some also say there is no headlight relay for. 91 caprice.... Any help would be gratefully appreciated!

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Check your fuses,if they are ok ,then check yourdimmer switch, i would also try putting in and trying a set of diferent bulbs.

Posted on Oct 21, 2013

Testimonial: "Thanks for your help Pablo fuses are good, put in different headlights same outcome though, like you said the problem may be in the dimmer switch and is really my only option because I don't think this vehicle has a headlight relay... Thanks again"

  • nicholas tanner
    nicholas tanner Oct 22, 2013

    even though the switch might sound like it's goo and bulbs may be and bulbs may be good if that rod is of if that rod is off track it will not activate high and lo it will not activate high and low beams the rod runs to the base of the steering the rod runs to the base of the steering mechanism there's actually a button that the metal rod prices that you can manually press to check to see if that is the problem process of elimination

  • nicholas tanner
    nicholas tanner Oct 22, 2013

    voice text sorry if that was hard yo understand to sum it up ive seen a few have this same problem after tearing everything apart and putting it back together I found out the problem was the metal rod that was off track from multifunction switch down to the base of the steering column you can manually press in the plastic peice the rod connects to to test if this is your issue


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SOURCE: Headlights do not turn on my 1998 Chevy cavalier.

Problems like these are more often the front wire harness that runs across the inside of you bumper and plugs in underneath the battery tray. A lot of shorts are found in these harnesses. Glad you got yours fixed.

Posted on Nov 05, 2010

  • 721 Answers

SOURCE: low beam headlight /daytime light are not working

It's on the driver's side. Remove all the plastic & it's in there.Big rectangle, black box,about 1.5" thick,lotta wires.

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SOURCE: I have no low beam

Check the connectors that go to the headlight bulbs to see if they are burned or melted. Low beam lights are on longer than high beams. The heat buildup around the connectors normally melts them.

Posted on Sep 27, 2010

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