[Gravter]

Wondering if anyone can help me isolate where is my short.
Whenever I replace FUSE #42 (10A Stop lamps, Shift interlock), and apply the brakes, the fuse blows and I am without brake lights!
Where does the wire harness go through the car?

PS, this if for my 2007 ST.

Thanks

[Gravter]

I more or less isolated it to the rear.
I unplugged both harness in the trunk and the fuse does not blow now.
I took apart the third brake light and all seams ok.
The licence plate lights do not turn on with light switch on, and are heavily corroded.

[Gravter]

Anyone have the wiring diagrams for the 2007 Focus?
Also, I 'd like to know, do your brake lights turn on when you push the pedal without turning on key switch at all? I thought they are supposed to, mine don't but don't blow the fuse unless my key position is either on ACC or start.
I follow the wires pretty much everywhere and still can't find the short
Thanks

[ZTWsquared]

I've got a couple of Ford DVDs, I'll see if I can find something useful. In the meantime, your brake lights won't work with the ignition off; "the stoplamp switch routes voltage to the generic electronic module (GEM) ... and the GEM then supplies voltage to the rear lamps." IE: no power to the GEM, no power to the stop lamps.

(09-15-2014, 08:33 AM)Gravter Wrote: Anyone have the wiring diagrams for the 2007 Focus?
Also, I 'd like to know, do your brake lights turn on when you push the pedal without turning on key switch at all? I thought they are supposed to, mine don't but don't blow the fuse unless my key position is either on ACC or start.
I follow the wires pretty much everywhere and still can't find the short
Thanks

[Gravter]

Oh! That's how it works!
I thought the brake lights came on whenever the pedal was engaged.
Oh well, learn something new everyday eh!
I hope to get this fixed up soon as this is my winter car. My '14 ST will be sleeping in the garage this winter :p
Thanks!