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brake lights won't turn off

2224 Views 3 Replies 2 Participants Last post by  Flywheel

the brake lights on my truck did not turn off after I parked him at work this morning. They were still on after about a quarter of an hour.
I checked the switch on the pedal, looks good. Even unpluging it does not turn off the lights.
I pulled every fuse that somehow had to do with brakes, tail light and/or trailer control.
I do not have an trailer brake controler installed.
I ended up disconnecting the batteries for now to prevent draining them.
I noticed, that the brake lights are not staying on as bright as they are when I apply the brake.

Any ideas?


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Is the third brake light on - or just the two rear ones?
No Telling -

I would be interested to know if there is a relay for the brake lights that may be weak.....

Many have posted better driveability after unplugging the batteries - but you also may have a problem that you cleared out of the PCM..Might want to find a scanner at some point and check for any codes stored.
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