Question about 1997 GMC Sierra K2500

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Hi . I need the wiring diagram of the 95 GMC Sierra Brake switch. Thank you

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If you sign up on then there wiring diags.will show you what u need

Posted on Nov 30, 2010


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The brake switch should be mounted under the dash, usually attached to a bracket so that the switch contacts the brake pedal lever.

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You hit it on the nail, you have check every thing we would have checked here at my repair shop, it's going to be the turn signal switch, as you now the brake light circuit run's through it and more then likely your center top brake light works.Bad switch (turn signal).

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2005 gmc sierra brake lights won't work

Hi and welcome to FixYa,

Your particular vehicle is not that common in my country. However on similar incidents, possibilities are:
  • a faulty brake switch (above the brake pedal) (least likely);
  • a blown fuse (likely);
  • loose ground in the brake light wiring/harness (most likely). One way to test is to temporarily install a jumper wire from the body/housing of the bulb socket to any exposed metal/screw;
  • open wire/connector along the harness from the engine compartment to the rear (a possibility).
To test for the presence/absence of voltage when the brake pedal is stepped on, a test light is preferred rather than a DVM/VOM.

Good luck and thank you for using FixYa.

Feb 13, 2009 | 2005 GMC Sierra 1500HD

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