Ok. So when I turn on the headlights, my trunk pops open. *sigh* - Ford Focus Forum, Ford Focus ST Forum
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Old 10-23-2008, 08:45 AM   #1
iggy097
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Ok. So when I turn on the headlights, my trunk pops open. *sigh*

As if I needed another problem, as stated above, now when I turn the headlights on, my trunk releases.
Any advice? Not sure how much the repair would cost, is there a fuse perhaps that I could just remove for the time being that controls the trunk release? I couldn't find it in the manual.
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Old 10-23-2008, 08:47 AM   #2
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Seems like you have some wires crossed?
(Ok, but you have to admit, this is quite hilarious! Sorry, it was to me. )
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Old 10-23-2008, 10:14 AM   #3
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Hahaha, sorry but this is funny.

X2 on the ^^ post above.
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Old 10-23-2008, 10:15 AM   #4
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lmao, jeez what a pita! Maybe its one of your earths? One of my earth wires corroded and my doors used to lock and unlock on their own every so often :S
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Old 10-23-2008, 10:54 AM   #5
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this reminds me of those new carmax commercials(guy is flipping down visor and trunk and hood keep popping)
"this car isnt carmax worthy!"
ok theres my laugh someone please help this person!
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Old 10-23-2008, 10:55 AM   #6
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I would guess that the wiring for the hatch release (you said "trunk" but if you have a ZX3 I presume you meant "hatch") runs through the hatch itself, and the wiring bundle that goes from the body to the hatch on the Focus has a known issue relating to problems with the insulation on that bundle fraying/cracking. If you have broken or frayed insulation there, the wires could be touching, causing a short between the vehicle lighting circuit and the hatch release solenoid. If that's the case, then turning on your lights would actuate the release solenoid.

I've checked my harness, and I do have some cracked insulation. Doesn't seem to be causing any shorts for me, but after seeing the post above I felt motivated to check it, and now I'm aware that it exists. My wiring bundle has been taped up either at the factory or by a previous owner, and the tape seems to be what's preventing any shorts. I may eventually repair the broken wiring myself, but that's a job for the winter months when the car will be garaged (unless it starts causing problems before that).

Hope this helps!
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Old 10-23-2008, 02:27 PM   #7
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Ha! Sure enough, my wires were split, just like the pics. I fiddles around with them, moved a few around, gave them a stern talking to, and viola! No more posessed car!! Thanks JB
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Old 10-23-2008, 09:09 PM   #8
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Quote:
Originally Posted by iggy097 View Post
Ha! Sure enough, my wires were split, just like the pics. I fiddles around with them, moved a few around, gave them a stern talking to, and viola! No more posessed car!! Thanks JB


Glad to help, Iggy! I'm sure it was the stern talking to that really did it (usually works for me, anyway)!



I hadn't heard any reports about this wiring issue causing people's trunks to open when turning on the lights, but given the things connected to that wiring bundle it seemed like that could easily be causing your problems under the right circumstances.

Now, repeat after me:





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Old 10-25-2008, 03:49 AM   #9
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Quote:
Originally Posted by jbodin View Post


Glad to help, Iggy! I'm sure it was the stern talking to that really did it (usually works for me, anyway)!



I hadn't heard any reports about this wiring issue causing people's trunks to open when turning on the lights, but given the things connected to that wiring bundle it seemed like that could easily be causing your problems under the right circumstances.

Now, repeat after me:





LOL there was 4 threads related to this recently and how to's on a temp fix till i fish my harness out from my car LOL

Pssst.. Wagon 1 had no third light when u hit the brake it would activate the wiper, hit the wiper the wiper would work and so would my license plate lights hit the rear defrost the trunk would pop and wiper would turn on ( please note the sheathing on my wires on Focus 1 turned to dust and everything was corroded hehehe )

P.S. #1 there notorious for cracking and #2 certain year certain model focuses actually ahve a recall on them for that
:( sadly neither of mine are one of the recalled

hehehe heres my harness on Wagon 2.. almost identical breaks and cracks to Wagon #1
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Old 10-25-2008, 08:13 AM   #10
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^^^
Yup -- wiring bundle on my ZX3 hatch looked very similar.

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