Question about 1999 GMC Sierra
Hi i wanted to know if anyone had any idea waht could be causing this, horn and cruise dont work, airbag light isnt on and i also wanted to know wjere the horn is i was told under the air box, removed it and didnt see the horn there
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Posted on Jan 02, 2017
SOURCE: 1985 gmc sierra light issue
The most simple solution to this Problem Which is VERY Common on this model Truck (Had a 85' Chevy) is to get an Electrical Tester from any Auto Parts Store or Wal-Mart and Unplug the Headlights one at a time and check the Leads in the Harness. If they test ok then go to the Fuse Box and Check there after you Pull out the fuse and reattach the Light Harness to the Bulb. There should be a Short under the Dash on the Stearing Column. It is a Task to fix on your own But, Can be done. I went so far as to Install a GT Grant Steering Wheel and REwired the Horn to solve that Problem. You could have messed up the Harness for these when you adjusted the Clutch But, These wires only go through the FireWall and Not under the Truck. Get a Tester and start Pokin around. Any good Parts Shop will be able to tell you how to work the Tester and there are all Kinds of MANY Price Ranges. Just let them know what the Problem is and they will know which one you need!
Posted on Dec 30, 2008
SOURCE: cruise control wont work
normally the brake switch is the issue with these trucks. it is located under the dash where the brake pedal meets the linkage to the brake booster.
Posted on Feb 16, 2009
May want to look at replacing the wiper circuit board.It is located on the firewall adjacent to the wiper motor and has a some what square black cover with 3 torx screws and wireing harness pluged into the side.We had a truck that every time you washed it the wipers would stay on until it dryed out.You can try removing it and spaying it down with contact cleaner just watch the brease on the two contact tips.Well hope this helps.
Posted on Feb 05, 2010
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