Ford Repair Questions? Ask a Mechanic for Answers ASAP
Hello, I'm Chris, a current Ford Lincoln Mercury employee.
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I have attached all the turn signal and stop light wire diagrams so you can follow the signals from the brake pedal position switch and the multifunction switch. Sounds like your experienceing wire breakage somewhere in the circuit but I can pinpoint it from my end without the vehicle. The signal is going to come out of the flasher unit then to the fuse box before lighting the lights. All lower brake light signals first have to go through the multifunction switch.