Question about 1998 Chevrolet Express

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Headlight won't come on

After plugging in boat trailer light wire to my 2006 chevy van for the first time I turned a corner and lost all lights and instrument panel. I checked fuses, relays. ok Tail lights and instrument panel lights are working now but I still have no headlights or running lights. Thanks, John

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  • Cathy Wingert
    Cathy Wingert Jul 28, 2009

    I found the fuse box under the hood. In it is fuses# 42 & 43 for the headlights. When the head light switch is on I get power thru the fuses and relay but no headlights or front clearence lights. I have unpluged the lights and turned them on and tested for power at the plug thinking it may be a ground problem, but I am not getting any power at the plugs.

  • Cathy Wingert
    Cathy Wingert Jul 28, 2009

    I will have to check the continuity tomorrow in the day light. I did see the lights once today .I ran a wire from the battery to the left side of the mini fuse #42 and both lights came on. I was holding the wire in my hand and it didn't seem to get hot or even warm. I looked under the fuse panel for any signs of a burnt wire or connector and nothing looked burnt John

  • David Katrenick
    David Katrenick May 11, 2010

    Have you tried to check continuity from the plug wires to the frame? Maybe there is a wire grounded somewhere? Or check continuity from the plug to the relay and the fuses? Maybe your problem has nothing to do with the trailor.

  • David Katrenick
    David Katrenick May 11, 2010

    There has to be another fuse or relay you need to change. Cold be in the power box under the hood. You most likely pinched a trailer wire when you turned. Check the wires on the trailer all the way back or you will keep blowing fuses.


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Did you pull the fuse all the way out to check it? Sometimes they show good with a meter but thier still blown.

Posted on Jul 29, 2009

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The headlights have 2 fuses. One is a main power feed under the hood in the distrabution box and the other is under the dashboard. Check the fuses and then check for power at the switch. If you have power at the switch then its not a fuse its the switch and the trailer you had connected most likely shorted and back fed into the parking and dash light circuit. Those circuits also run from the light switch.

Posted on Jul 28, 2009

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