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'05 Focus Tailgate/boot Problem


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#31 andybrad

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Posted 24 January 2011 - 08:32 AM

hello,

i have the exact same problem with the boot opening with the brake pedel being released! the switch works on the outside. Ive pulled the boot liner off and you can disconnect the micro switch and this has no effect on the issue. there doesnt seem to eb much, if any, water ingress.

im stuck as to what to look at now as this is obviously not an isolated issue. and would like to know how to proceed. im thinking of swapping the lock mechanism out but as this appears to work (although at the wrong times) i dont want to spend 60 quid on something thats probably not the issue.


does anyone else have any thoughts? are there any common issues with the wiring loom rubbing in the boot?

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#32 andybrad

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Posted 24 January 2011 - 08:45 AM

ive found this

http://passionford.c...se-problem.html

and this

http://www.honestjoh...dex.htm?t=66847

will investigate tomorrow.

#33 Santiago

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Posted 24 January 2011 - 11:20 AM

hello,

i have the exact same problem with the boot opening with the brake pedel being released! the switch works on the outside. Ive pulled the boot liner off and you can disconnect the micro switch and this has no effect on the issue. there doesnt seem to eb much, if any, water ingress.

im stuck as to what to look at now as this is obviously not an isolated issue. and would like to know how to proceed. im thinking of swapping the lock mechanism out but as this appears to work (although at the wrong times) i dont want to spend 60 quid on something thats probably not the issue.


does anyone else have any thoughts? are there any common issues with the wiring loom rubbing in the boot?

Hi Andybrad
Thanks for the feedback Nice to know mine is not an isolated incident.
I discounted a wiring loom problem as the fault occurs when the brake pedal is released., plus my loom seems in good order.
I have still not got a lot further other than I left my inside plastic tailgate liner off for a couple of days so that I could disconnect the latch assembly easily and drive without it opening, only to find that the fault has now disappeared.
this leads me to think it may well be a faulty latch assembly which is being affected by condensation after the cold weather?
Apparently there is an electronic module within the assembly which has a microswitch which plays up?
I understand electrics but not electronics, however damp and electronics dont mix.
I am going to remove the latch assembly and take off the plastic covers and see if there is any obvious damage.

As there seems to be a common problem with this latch I am also looking into ways of insulating the inside of the outer skin to the tailgate with something like thin polystyrene in the hope that this cures any condensation problems. I will post the outcome asap but sorry I am a bit busy to tackle it at present. cheers John.

#34 andybrad

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Posted 25 January 2011 - 09:35 AM

RIGHT,

i took the boot lining out on the passenger side. found a multi connector and took it appart and sprayed with a bit of 3in1 oil. went to the gym. when i got back it seemed to be sorted. happy days. I took the oppertunity to give the lock mechanism a good dousing with it as well.

seems to be sorted but i dont know if its just because its dried out a bit. either way its working

#35 Santiago

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Posted 26 January 2011 - 09:15 AM

RIGHT,

i took the boot lining out on the passenger side. found a multi connector and took it appart and sprayed with a bit of 3in1 oil. went to the gym. when i got back it seemed to be sorted. happy days. I took the oppertunity to give the lock mechanism a good dousing with it as well.

seems to be sorted but i dont know if its just because its dried out a bit. either way its working


Thanks for that.
Hav'nt tried the connector yet but sounds like a good idea. In the mean time I spoke to my local ford dealer who was suprisingly helpful. He indicated the same connector but also said that the Gen board which is located under the dash passenger side gives loads of wierd electrical problems. It to is affected by damp and green deposists can be found which causes electrical tracking this makes sense to me but I hope that is not my problem as it costs about 325 for the part and it has to be programmed back in. you have to be careful when disconnecting multi connectors on this board as for instance the green one will require the key code to the radio if disconnected.
Happy hunting.

#36 starfield

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Posted 30 January 2011 - 03:16 PM

I have got a 56 reg focus zetec hatch.
I do not have the tail gate switch problem but i have noticed while lifting the tailgate up that there has been water ingress in the number plate lights. (some dried up brown deposit, water has been there before)
Is this the start of the tailgate switch problem?

Does anybody know where does the water enters the tailgate to damage the tailgate switch?

#37 gr33ns

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Posted 26 April 2011 - 08:37 PM

I have got a 06 focus saloon I could not open my boot, some times it would open then it would not, I took the lock apart lock was ok
if I closed the boot half way it would work if I shut boot fully it would not work also the boot light stopped working, so I started looking at the wiring
and found where the wiring goes from the boot lid to the boot through the (rubber boot) the wiring was broken and frayed


I have now sorted the wiring out and all is working fine now

Hope this helps some one out

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#38 airedale

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Posted 06 May 2011 - 05:58 PM

Nice write up Catch. Would be interesting to hear the theories on why disconnecting and subsequently reconnecting the battery causes this problem to rear it head?
As said, my next line of attack will be to clean the switch contacts as i suspect them.

Hi
I removed the rubber cover on the Tailgate On my Estate water came out of it.I had to replace the Switch (30).Water was getting in on the Plastic Trim that holds the Reg Plate lights etc i put clear sylicon sealer around the trim before i tighned the 4 nuts up this has cured it and there is no water getting in.

#39 David-RA

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Posted 12 July 2012 - 10:10 PM

Hi All

Seem to have solved this problem of releasing the brake pedal unlocking the tailgate and the release switch not working.

Pull back the near side rear boot liner and there will be a big black connector. Just moving the bunch of cables operated the tailgate lock. When I pulled it apart there was a little water inside. Liberal spray of WD40 on both sides of the connector and then reassembly and everything works fine.

It is a bit difficult to get the trim back into place. I had to remove the trim moulding across the rear of the inside of the boot. It is only held in by some push-in plastic clips which are a bit of a challenge.

All this recent rain must be the cause but at least it only took a couple of sprays of WD40. I'll try some extra sealer on the gromet that the tail light wires and the screw holes as that is only place the water can have come from.

I have had to do the same to the bulb holders in the rear lights and indicators in the past to get them working again.

Thanks for you help

Regards


David

#40 memoryweaver

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Posted 04 December 2012 - 12:02 PM

I too have recently had the problem where the boot switch refuses to work, the boot unlatches when the break pedal is released, and the keyfob button works okay. At first I thought it must be the boot switch unit, not helped by the fact that the problem goes away a couple of days after the rain has stopped. Cleaned out the switch, no real sign of water ingress in it -- couple of days (and some more rain) later, problem reoccurred.

Have read through all the info here, and eventually homed in on the black connector block, near side, behind lots of hard to remove trim -- nothing obviously wrong with it, no sign of dampness, but touching it caused the latch to start jumping madly. Fiddled around a bit, and the latch started working normally, rear button works, no activity on break light deactivation.

Still not certain as to exactly where the problem lies -- it must be a short somewhere, there's a cable disappearing from the black connector into the reversing lights / rear fog light assembly -- this is very low down and must constantly be exposed to kick-up moisture from the road.There was significant water ingress around the center rear break light, but disconnecting this assembly made no difference. There was slight water ingress around the tail-light assembly, particularly on the near side, indicating that moisture may have made it down to the connector block, but there's no sign on the block itself.

Will have to keep monitoring the situation -- will post back if any more determinative information.

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