gadoc

2001 F150 crewcab, 5.4l; absolutely no problems (70K mi) and then last week the brake lights fail to turn off..they're stuck on....otherwise truck runs fine. I removed the bulbs to keep the battery from draining; Anyone else hear of this problem? possible solution? where is the brake light switch ? any help is greatly appreciated!

gadoc

Good old Bill

Take a look under the dash at the pedal mechanism. There might be two switches there, believe one wire is lt grn/red and the other is lt grn. Un plug it and see what happens.

gadoc

thanks Bill...I'll take a look

SinCityFX4

I am with bill, sounds the like the switch for the light on the pedal.

gadoc

OK...looked under the dash and found the 5-wire plug on upper brake pedal...first two wires are grn/red and green...unplugged from black plastic module...brake lights still on......must be a short in the wiring harness???

Good old Bill

Rechecked my 02 diagram and it does feed over into the trailer tow circuit. Have to confess, I'm having difficulty following the diagram. Here is a lin k to obtain the diagrams for you truck.
Go to: search.ebscohost.com
USER: greatfalls
PASS: publiclibrary

Select auto repair, year, make, ect..

gadoc

The wiring diagram should do it...will give you and update in a day or two. Thanks for your help!
David Peed
Columbus, GA