1997 Chevrolet Silverado Brake lights

1997 CHEVROLET SILVERADO
186,000 MILES • 5.7L • V8 • 4WD • AUTOMATIC
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CANINE1
  • MEMBER
  • 1 POST
I have 97 K 1500 4x4 Silverado and the brake lights don't work and the third light doesn't work. Things that I have done: replaced the following parts
1 fuses in side and under hood and brake relay.
2 rear tail lights
3 brake switches two from auto zone and the third one from Chevrolet dealer.
4 turn signal switch
5 Third light.

Raced all the wiring from the rear to fire wall no bad wires along the frame and the talight harness. All fuses showing 12 volts on my meter. All the other lights wok well. Got any ideas
Sep 5, 2015 at 8:05 AM
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HMAC300
  • CERTIFIED EXPERT
  • 48,601 POSTS
check to see if power goes in and out of brake light switch, then check t/s switch for rear lights . for upper light wiring is in cab so may have a short there.
Sep 6, 2015 at 8:24 AM