Question about 2002 GMC Sierra 1500

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No low beams on fisher v plow brand new already switched isolation box

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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roniecon
  • 6826 Answers

SOURCE: low beams wont come on

There are head light relays in the relay box,this could be the problem.

Posted on Dec 06, 2009

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  • 67 Answers

SOURCE: with plow lights pluged in do not have low beam on

ca mention may be wrong un plug the 2 chk fuse and start overthen u no

Posted on Dec 11, 2009

SOURCE: Lights on a fisher xtreme plow wont work

Check your harness plug ends for broken pins. Also the isolation module could be defective

Posted on Feb 07, 2012

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Putting a 2006 fisher plow on a 2007 Chevrolet no low beam head lites how to switch wires to fix


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Jan 14, 2016 | Chevrolet Cars & Trucks

1 Answer

My low beams are not working, tried the bulbs, tried the fuses. high beams and fog lights work fine, not sure what to do now


Look at relay #45 in the fuse box under the hood. Next time the low beams don't work,(a lot of times it's intermitent) switch the relay with relay #46 which runs the fan, but is the same relay. Your low beams should now work. For me, I cleaned the relay terminals with fine sandpaper. Although I keep a brand new relay in the glovebox, cleaning the relay terminals worked for me, and lowbeams have not gone out once since the cleaning. I do keep a brand new relay in the glovebox just in case though. Very common problem with Trailblazers and Envoys.

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Low beams not working on 2004 e 350 box truck. Already replacad fuse


There's two possibilities: first and most likely is that you need a new bright switch. The second possibility is that the low beam filaments have burned out in both head lights.

Mar 29, 2010 | 2007 Ford E-350 Super Duty Length XLT

1 Answer

Ford 2003, F250 Desel, 7.3 Liter Head lights


first thing i would check is the wiring were the plow wiring is spliced in at this is most likly the culprate. or you may have a bad multi function switch in the steering column

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2 Answers

Lights on a fisher xtreme plow wont work


I'm guessing that you have already checked to make sure there is power going to the plow lights. If not use a test light and make sure. The most likely problem is the grounds from the plow lights themselves to the frame. Take the lights apart and check and/or replace the grounds, wires inside the case take a lot of vibration and that can cause them to fail.Don't forget to check the bulbs to be sure they're good too. Hope this helps.

Dec 17, 2009 | 2007 GMC Sierra 2500HD

1 Answer

No low beams.


To start ensure that it is not just a blown fuse. If that is not the problem, then you need to read voltages at the back of fuse box, to check if there is volts on wiring from fuse out to light when switch is on. If there is no power you localize the problem on wiring from light switch to fuse box. In this case you may need to take apart the steering column to repair wiring harness (switch has already been replaced).
If instead there is power getting to light fuse, and power out from fuse box to light, then test and repair the wiring to lights from fuse box, if you do not find the problem you may need a rebuild. This can be done by a mechanic or by a car electrician.

Apr 17, 2009 | 1992 Ford Mustang

3 Answers

2008 Ford F-250 Low beams do not work. High beams are fine.


it could be Bad dimmer switch .just check out the switch.

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