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Old 02-17-2008, 02:42 PM   #1
red2003
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Lightbulb Exterior brake lights stay on (right, center, and left)

With the transmission in Drive and no pressure on the brake pedal, the exterior brake lights are still on.

This is not a problem caused by the brake pedal switch (both of the plunger switches located at the pedal test ok). With the car ignition on and the transmission in park, no pressure on the brake pedal, the brake lights are NOT on. Pushing the pedal causes the brake lights to come on and causes the solenoid release pin to activate, allowing the transmission selector to be moved out of park. If the selector is left in park, releasing the brake pedal causes the brake lights to go out, that part of the brake circuit seems to be working ok. The problem with the brake lights staying happens when the transmission is moved out of park to any other position, including neutral and allowing the car to stand with no brakes on or to just coast, the brake lights still stay on when there is no pressure on the brake pedal.

I don't have a wiring diagram for the car, does anyone know where they can be obtained for free or low cost? It appears there may be a relay in the interlock circuit that connects the brake pedal switches, transmission selector switch, and ignition switch.


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Old 09-04-2009, 01:17 AM   #2
2002focusSEwagon
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The same problem exactly, with my 2002 Focus SE wagon. Also, the third break light does not light at all. Here's the problem....The wires in the umbilical cord connecting the body to the hatch are "trashed". The insulation is brittle and cracked. Two of the wires are completely severed. Poor engineering at this critical junction. I'll try to put up some pictures. You will likely find the same problem with yours.
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Old 09-04-2009, 10:57 AM   #3
2002focusSEwagon
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Here are the pictures of the broken wires
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Old 07-20-2010, 08:48 PM   #4
MalcolmRoachjr.
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Thumbs up Awsome Information and details bro!

Today i had the same problem come up on my focus , i opened up this thread and the info was helpful and right on the money. I plan on re wiring the entire area this weekend and modifing the entire area so this will never happen again.

I appriciate your details and help , you saved me some money and that put a smile on my face
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Old 07-20-2010, 09:33 PM   #5
arlenn
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how did you make the repair? Its hard to get fingers in there, and we have not got to fingers and tools yet.


Quote:
Originally Posted by 2002focusSEwagon View Post
Here are the pictures of the broken wires
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Old 08-02-2010, 04:18 PM   #6
psenechal
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Same issue here

Thanks for the posting. I have the exact same issue going on and will be checking this wiring out tonight. I'll post pictures of what I find as well in case it helps anyone.
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Old 06-25-2011, 02:33 PM   #7
DonRamon
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Quote:
Originally Posted by 2002focusSEwagon View Post
Here are the pictures of the broken wires
Thankyou, i had the same problem with my ZX3, looked at your pics and found same problem, one of the wires was cut the rest are stripped, its a mess in there, but i reconnected the broken wire and now it all works. Your post was very helpfull.
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Old 01-12-2013, 05:15 PM   #8
muststang66
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To 2002focusSEwagon, Brake lights wiring problem.
Thank you for taking your time to post the photos of the focus wagon, i really appreciate it. i would have never isolated this.
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Old 01-12-2013, 05:17 PM   #9
muststang66
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To 2002focusSEwagon, Thank you for taking your time to post the photos of the focus wagon, i really appreciate it. i would have never isolated this.
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Old 10-24-2013, 03:32 PM   #10
numzi
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you just helped me a lot .I had the same brake light problem and with your help I just fixed it. THANK YOU
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