2003 Ford Expedition Brake Lights Not Working

See the diagram here the power to it comes out of the switch on the light green wire to the high mount lights and in on the lite green red.

2003 ford expedition brake lights not working.

The tail lights back up lights and signal lights all work but not the brake lights. Brake lights 1 answer. Also there is a trailer light harness on the vehicle check at that connection or actually remove the trailer light harness as some have a built in converter that can cause weird issues also. Jack if your sure all the fuse are okay then jumping the break light switch should at least allow the third break light to work.

I have a 2003 ford expedition. Welcome to he forum if the high mount brake lite doesn t work check the brake position switch. Driving without the brake lights working is just as unsafe as if your expedition s brake lights were stuck on. Blinkers working hazards working.

At some point the power is not getting from point a to point b. If bulbs bulb sockets fuses and brake light switch all appear to be good the fault is probably the turn signal switch. We just have to find where that is. The lite green wire with red tracer is voltage to the switch hot all the time.

This seems to be related to the pedal. If none of the brake lights are working we are going to follow the circuit from the fuse box back to the brake pedal. Have taken the fuse out and put it back in a few times.