Question about 1994 GMC Yukon

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Change back-up light switch, how?

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  • pdooley6 Oct 20, 2008

    I finally found it; on automatic Yukons, the back-up light switch is monted on the top of steering column, close to the fire wall.

    Hard to access and seems impossible to remove. Hard to see. Still to be removed.



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Trans beside the shifting mechanism, when you have a buddy shift it into reverse you can see where the switch is

Posted on Oct 19, 2008


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Will a faulty or failing signal turn switch on a 1999 chevy lumina cause the break lights to not work?

Only the left and right brake lights are wired through the turn signal switch. Don't go out and buy a new turn signal switch until after you try my trick.
Does the center brake light illuminate when you depress the brake pedal? If it does, that will confirm the operation of the brake light switch at the brake pedal.
Now try this:
First get a helper to watch the lights, or park where you can see the reflection of the brake lights.
To see what you have to work with, perform the following steps:
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The trick is to build an external positioning device that keeps the lever from moving forward.
See how the lever extends through an opening in the steering column shroud?
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I found a piece of black rubber hose and:
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I hope that helps.
If you need a photo, let me know.
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Did you check the fuse for the high beams ? ( Cab fuse panel, fuse # 16 ) with a meter or test light on both pins on the back of the fuse ? To have power on this fuse you need the main headlamp switch turned to the headlamp position, and the MFS pushed forward ( or holding the FTP function ).

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Directions in your owners manual on getting to the bulb connector by removing the headlamp housing ( ie. changing the bulb ).

If you did not get an owners manual with your truck ( purchased used ), you can download one from Ford :

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Please just remove the battery connectors for 5 minutes and connect back afterward.

That should fix your car.

Good luck and remember to rate this immediately with a testimonial too.


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