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1994 CHEVY K1500 BRAKE LIGHTS DON'T WORK TOP CAB LIGHT WORKS

BULBS ARE GOOD REPLACED BRAKE SWITCH STILL NO LIGHTS DRIVING LIGHTS WORK

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  • topdown63 Nov 17, 2008

    same problem here. Apparently a few people on this site are having same problem.

    Turn signals work, reverse lights, but no brake lights.

    I replaced:

    Brake pedal switch

    all bulbs

    fuses all ok

    tail light assemblies

    still no brake lights, then my headlights went out too, 2 days later. I will try the relays as you suggested. If anyone else has any other possibility, please post! thank you!

  • Anonymous Apr 10, 2009

    I have the same problem. My lights all work if the wheel is tilted all the way up. once I come down 3 notches the drivers side read brake and turn signals do not work.

    I suspect that it is a problem in the multifunction switch contained within the steering column.


  • topdown63 May 11, 2010

    I'm still working on this problem.

    The turn signals do work.

    Running lights work.

    Reverse Lights work.

    License plate lights work.



    This all started with my license plate lights going out. Then my brake lights went out. Then my headlights went out.

    Just replaced the License plate lights. I had replaced the Brake light bulbs, even the Brake light assembly. I replaced the Headlight switch, now the headlights work again. Just installed a new battery too.



    My center high mount stop light (top of cab), had all the bulbs burnt out. I bought all new bulbs, installed but still no brake lights. Even the cargo lights on the same assembly don't work.

    There IS power going to the plug there, but nothing from the brake switch.

    I now have a schematic that shows there is a Relay that powers the High Mount Brake Light. I've seen on another forum that this Relay is either located in the Engine Compartment on the firewall, or in the glovebox. I only have a Fuel Pump Relay in the Engine Compartment, so I took apart the glovebox and there were 4 Relays there. As I jumped from 30 to 87 on each Relay, it turned on the Load Component. All 4 were for the AC system. No other Relays in that area.

    Someone stated the Relay could be located on the left side of steering wheel on the side of the dash but no such luck.

    Below the fuse panel I found the Horn Relay and the Starter Relay.



    I read on another forum the problem was the ground for the High Mount Stop light Relay. It also said that the ground comes from the block and I checked the ground, on the back of the engine block and it's good.



    Any suggestions would be greatly appreciated

  • Anonymous Mar 26, 2014

    cab break light works fuses good but no brake lights on back of the truck

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I figured out my problem!
From the VERY BEGINING... I changed my brake pedal switch with a BRAND NEW switch, and the lights still didn't work.

Well, I went back down there with a live wire and touched the contacts..and guess what.. the brake lights lit up!

I got a faulty NEW brake pedal switch!! I went a year with this problem, so learn from my issue, test even your new parts if it doesn't fix the problem to completely rule it out!

I hope you guys figure out what's going on with your issue.

Posted on Apr 21, 2009

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I have/had the same problem recently. I found out that if I tilt my steering wheel up or down my brake lights quit working. I haven't finished tracing the problem yet but I do know it is some how connected to the tilt steering. Try starting with your steering wheel tilted all the way up and holding your brake pedal down. Then slowly adjust the wheel down one click at a time and see if the lights come on. I'm interested to see if this works for anyone else. And no this is not a joke, I'm serious.

Posted on Mar 07, 2009

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I don't know if it is the time of year (lots of condensation) or it's just happens alot but my mantra appears to have become check the relays. I suspect the brake light relay would be in the engine compartment fuse panel but on yours it may be in the fuse panel under your dash or in the glove compartment.... car companys seem to like hiding them.

Robert

Posted on Sep 25, 2008

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