GM Truck Club
THE PREMIER CHEVY TRUCK & SUV FORUM
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 6 of 6
  1. #1

    Default 1999 GMC Sierra rear brake lights out(3rd works) I have searched..

    Hello

    New to the forum, thanks for having me

    I have performed a forum search for my problem. But could use a little more guidance if someone would lend a hand, I would appreciate it.

    In addition to what the title says I should add that I have aftermarket LED rear lights. The lights work up front, the back parking lights, turn signals and hazards all work. Just not the brake lights on the tail lights. Turn signals use the same LED's that the brakes do. No blown fuse. Got the test light out and started poking around. The wires coming off of the switch on the brake pedal all made the test light light up. All had power without pressing the brake, except for one, it had power when the brake was pressed. Then I got under the bed where the buss is, unplugged the one coming from the cab. Test light never went off when the brakes were pressed.

    After searching the forum I read a reply from crabtruck that mentioned a relay. He said when you press the pedal you should hear the relay click. I don't hear that. That combined with the previous testing I have done would point to that. Problem is I can't find it anywhere. Following the wires quickly went into a rabbit hole. And my searching for this relay has gone for naught.

    Could someone help me find this or tell me I'm looking in the wrong place?

    Thanks!

  2. #2

    Default

    Welcome to the club. Sorry I can't help you but I'm sure someone on the site can.
    :cool:

    2005 Chevy Silverado Z71 Crew Cab
    6" Skyjacker lift w/Edlebrock dual front remote resoviour shocks, single rear remote. Rancho skid-plate.
    17" x 9" M/T Classic Lock Wheels, 35" BFG A/T or M/T tires
    4.10 PercisionGears w/factory locker, T/A Performance rear-end cover
    Banks CAI intake, ported throttlebody, JBA coated headers, over-sized Magnaflow cats, Magnaflow cat back exhaust, Diablo tuned
    B&M aluminum deep transmission pan
    Warn brush guard w/Warn 9.5 XP winch, PIAA bulbs, Line-X bedliner, AWS Black tool chest, Extang tonneau cover
    Weather Tech floor mats
    Cover-Craft seat covers
    Dash mat cover
    Formula One window tint
    One black Lab in rear seat.
    :glasses:

  3. #3

  4. #4

    Default

    I had the same problem on my 2000 silverado. My solution was pulling off the bed (it was easier) and just where the cab and bed meet up should be a plug setup for your rear lights. i bypassed the entire thing and hardwired it all. didnt have a problem after that
    "Silly Honda. My lug nuts take more torque than your car makes."

  5. #5

    Default

    Quote Originally Posted by mohamie View Post
    Hello

    New to the forum, thanks for having me

    I have performed a forum search for my problem. But could use a little more guidance if someone would lend a hand, I would appreciate it.

    In addition to what the title says I should add that I have aftermarket LED rear lights. The lights work up front, the back parking lights, turn signals and hazards all work. Just not the brake lights on the tail lights. Turn signals use the same LED's that the brakes do. No blown fuse. Got the test light out and started poking around. The wires coming off of the switch on the brake pedal all made the test light light up. All had power without pressing the brake, except for one, it had power when the brake was pressed. Then I got under the bed where the buss is, unplugged the one coming from the cab. Test light never went off when the brakes were pressed.

    After searching the forum I read a reply from crabtruck that mentioned a relay. He said when you press the pedal you should hear the relay click. I don't hear that. That combined with the previous testing I have done would point to that. Problem is I can't find it anywhere. Following the wires quickly went into a rabbit hole. And my searching for this relay has gone for naught.

    Could someone help me find this or tell me I'm looking in the wrong place?

    Thanks!
    You say the 3rd brake light works? Did the LED brake lights work at one time or did this start with the addition of the LED tails? I have seen some after market tails not have load resistors and this causes issues.

    If these lights have worked before I would double check your fuses..not sure if the 99's have fuses under the hood but the fuse should be labled STP LAMP or something like that.


    GMTruckClub members receive discounts off our normal rates! PM me for quotes! Check out our Films gallery - updated with over 200 Hydro Dip films!

    If it can be painted - it can be Hydro Dipped!

    Get the Gorilla!

    gorilladip.com

    sales@gorilladip.com

  6. #6

    Default

    Quote Originally Posted by sstoner911 View Post
    You say the 3rd brake light works? Did the LED brake lights work at one time or did this start with the addition of the LED tails? I have seen some after market tails not have load resistors and this causes issues.

    If these lights have worked before I would double check your fuses..not sure if the 99's have fuses under the hood but the fuse should be labled STP LAMP or something like that.
    I have had them working for 6 months or so. I will check, thanks!

Similar Threads

  1. Rear Shock Question ( i searched i promise)
    By torqydd in forum Lifted & Offroad Suspension
    Replies: 3
    Last Post: 06-15-2011, 10:36 PM
  2. 1999 GMC Sierra Odometer lights
    By BBodie in forum Lighting Discussion
    Replies: 3
    Last Post: 10-19-2010, 12:19 PM
  3. 1999 2500 with no brake lights
    By jason.bierschwale in forum Chevy Suburban Forum (GMC Yukon XL)
    Replies: 8
    Last Post: 12-16-2008, 07:09 PM
  4. 1999 2500 suburban no brake lights
    By jason.bierschwale in forum Audio, Video & Gadget Tech
    Replies: 2
    Last Post: 11-17-2008, 12:44 PM
  5. the rear deflector thats on top rear above 3rd brake lights [Expired Topic]
    By 97bigredburban in forum Chevy Suburban Forum (GMC Yukon XL)
    Replies: 7
    Last Post: 09-13-2005, 12:34 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •