Brake lights not working

Tiny
DMRUIZ
  • MEMBER
  • 1998 CHEVROLET SILVERADO
Electrical problem V8 Four Wheel Drive Automatic 230000 miles

my brake lights on my chevy p/u do not work. I have backup lights taillights blinkers but no brake lights. I have ckd the bulbs changed the blk electrical circuit board in the rear. Also chkd all fuses and changed the one under the brake pedal. Help im at my witts end and driving dangerously.

thanks deb
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Wednesday, August 13th, 2008 AT 9:45 AM

12 Replies

Tiny
KEN
  • ADMIN
Hey Deb,

There is a brake light relay that sounds like it has gone out. Here are a couple of guides and a wiring diagram to help you get the problem fixed. Test for power using a test light.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

and

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Please run some tests and get back to us so we can continue helping you.

Best, Ken

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Friday, February 24th, 2017 AT 2:55 PM
Tiny
MAARTENVR
  • MEMBER
  • 1998 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 245,000 MILES
Electrical problem
1998 Chevy Silverado V8 Four Wheel Drive Automatic 245000 miles

For some reason the brake lights stopped working on my 1998 Chevy Silverady. The bulbs and fuses are fine.

How can I fix?
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Friday, February 24th, 2017 AT 2:55 PM (Merged)
Tiny
MHPAUTOS
  • EXPERT
Hi there,

Check that there is power at the brake light switch and that power flows throw the switch with the pedal pressed, this switch is located at the top of the brake pedal.

Mark (mhpautos)
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-1
Friday, February 24th, 2017 AT 2:55 PM (Merged)
Tiny
GREGLONG
  • MEMBER
  • 1998 CHEVROLET SILVERADO
  • V8
  • 2WD
  • AUTOMATIC
  • 148,000 MILES
Electrical problem
1998 Chevy Silverado V8 Two Wheel Drive Automatic 148000 miles

My blinkers, Brake lights and Hazards went out. I have changed the bulbs, fusses and relay. Any ideas.
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Friday, February 24th, 2017 AT 2:55 PM (Merged)
Tiny
YENDY2
  • MEMBER
Check to make sure your ground wire is attached to the frame. This causes all kinds of problems if its not attached.
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Friday, February 24th, 2017 AT 2:55 PM (Merged)
Tiny
WILLIE WILLIAMS
  • MEMBER
  • 1998 CHEVROLET SILVERADO
  • 5.0L
  • V8
  • 2WD
  • AUTOMATIC
  • 191,000 MILES
Brake lights don't work turn work hazard work tail work already changed pedal switch no change
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Friday, February 24th, 2017 AT 2:55 PM (Merged)
Tiny
KNOWLEDGE IS POWER
  • EXPERT
Make sure the brake light fuse is good first
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Friday, February 24th, 2017 AT 2:55 PM (Merged)
Tiny
WILLIE WILLIAMS
  • MEMBER
Fuses are good so is relay maybe multi switch?
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Friday, February 24th, 2017 AT 2:55 PM (Merged)
Tiny
KNOWLEDGE IS POWER
  • EXPERT
No I don't think so. You've established that the turns and hazards work so we know that circuit is good to the bulbs and the bulbs are also good. The multifunction switch doesn't have anything to do with brake lights. If the switch is new and the lights work on all but brake then theres got to be a wire problem. Check the brake switch plug and the wires going into them for rubs or breaks
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Friday, February 24th, 2017 AT 2:55 PM (Merged)
Tiny
SUSAN CORTEVILLE
  • MEMBER
  • 1998 CHEVROLET SILVERADO
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 188,963 MILES
When I step on brake pedal fuse blows. Brake light and hazards on same 20 amp fuse hazards will work, but when step on brake pedal fuse blows. Found white wire in multi function switch and cut to eliminate multi function switch and it still blows fuse. Third brake light does not work either.
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Monday, August 14th, 2017 AT 2:25 PM (Merged)
Tiny
HMAC300
  • EXPERT
When you cut the wire to the multi function switch you lost your rear brake lights because they go through that to operate. The third brake light has its own wire leading to it. You have a short and must be sorted out can be a bulb and or bare spot in wire which in your case check the wire leading to third light it may have rubbed through.
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Monday, August 14th, 2017 AT 2:25 PM (Merged)
Tiny
NEDDERS
  • MEMBER
  • 1998 CHEVROLET SILVERADO
  • 174,000 MILES
No brake light the third brake light works. Everything else works just no brake light.
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Monday, August 14th, 2017 AT 2:25 PM (Merged)

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