Posted on Feb 28, 2018

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My cruise control doesnt work on my 1991 GMC Sierra K1500, I have put in a new actuator but it still doesnt work. What I need to know is what fuse runs it, what,if any relays are involved, and if the switch right near the brake light switch is the one to deactivate the cruise control

1 Answer

toddgilbert

GMC Master 6,360 Answers
Posted on Mar 14, 2018

toddgilbert

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Joined: Sep 07, 2017

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Wiring, schematic, electrical diagrams, fuse diag, error codes, torque settings etc are basic contents of these online books they have here on this website www.reliable-store.com I have attached. Must check it out

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reliable-store.com

5 Related Answers

daveleeyates

65 Answers
Posted on Mar 23, 2009

SOURCE: Brake lights quit working.

if all fuses and bulbs are ok get to the brake switch and see ifits stiff or stuck, if it just has two wires on it you could join themtogether to see if the brake lights come on though obviuosly dont leave them joined.Good luck davelee

Anonymous

71 Answers
Posted on Mar 29, 2009

SOURCE: brake lights dont work

make sure your geetin 12v to brake switch if not jumper a wire then try it

Anonymous

11896 Answers
Posted on Apr 24, 2009

SOURCE: My cruise stopped working on my 1991 GMC Sierra

Check your cruise control fuse or relay. It will be in your owners manual. If fuse is good than the cruise itself may be faulty. Check continuity on cruise controler itself. If there is power, than the controller itself is bad and need to be replaced. If there is no power than it may be a faulty switch.

Anonymous

12 Answers
Posted on Oct 11, 2009

SOURCE: 1999 GMC Suburban, K1500 4WD. Top brake light bar

third light is different circuit. saftey reason check fuses grounds wires

dogwood32

432 Answers
Posted on Feb 05, 2010

SOURCE: 1990 GMC Sierra 1500 pickup. Windshield wipers, Cruise Control

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.

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