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Old 09-07-2006, 07:21 AM
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no brake lights on suburban

I've got a buddy who has a '00 Suburban. His lower brake lights don't work, but his 3rd(upper) does. He's replaced the bulbs, switch, fuse, etc. Any suggestions?

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Old 09-07-2006, 07:28 AM
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Good chance its the multi-function switch (behind the steering wheel, it holds the turn signal stalk). Try messing with the hazard switch on to of steering column, if that makes the brake lights work, replace the M-F switch.

I have replaced way to many to count for the same problem.

Steve
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Old 09-07-2006, 07:40 AM
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there is a control module for the lights under the truck in the rear i seen that weather fooks them up. i would pull that out and see if thats it cause if you have the third light on top that means everything from the front of the truck is working like fuse and brake switch hope this helps i can get a wiring diagram if needed
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Old 09-07-2006, 07:59 AM
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Quote:
Originally Posted by kardoc
if you have the third light on top that means everything from the front of the truck is working like fuse and brake switch
The third brake light is on its own circuit, yes it is on the brake light circuit but the normal brake lights run through the multi-function switch.

Steve
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