Low beam won't work on my '91 Nissan pickup, Replaced the lamp, and fuses. Headlight works on high beam but not low. Appears to ground itself out. Is there a switch or relay I should try? If so, where is it located?
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Every single time I have had a failure of low beam in a headlight without failure of high beam, it has been because the lamp bulb or halogen lamp module has reached the end of its serviceable life, not because of any wiring problems. Low beam burns out first because it is on the most. If low beam is lost simultaneously in both headlights, I would check fuse first, then the headlight switch. If low beam is lost on one side only, it is almost always going to be due to the bulb or lamp module needing to be replaced. In that case, replace them in both headlights because the other one will be going kaput in short order, as well.Also if you already replaced the fuse and bulb check the headlight dimmer control switch. Thanks for using Fixya.
i have a 94 nissan pickup, the right side light beam works low and high but the left side dosnt work.... my friend thinks its aground problem how ever there appears to be ablack box looking like a day time night time module located at the left fender inside ...behind the battery fastened by two screws holding it to the body....
Hello. Generally when this happens, the high-low beam switch has gone bad and needs to be replaced. If you are handy you can do this your self. Otherwise, any autoelectric repair shop is your best bet. J.