Odd Central Locking Problem

[nigelbrooks]

A bit of a weird central locking problem with which I would appreciate some advice.

 

My car is a 2000 (W) Mk.2 Alhambra (Galaxy with a sombrero).

The central locking operates all locks except the boot.

The boot lock operates with the key. I can also unlock the rest of the car via the boot lock and lower the windows etc. All other electrics at the rear of the car are working fine and I cannot see any chaffed cabling (having searched the forum most locking problems seem related to this). There is no clunk from the, I guess, actuator which opens/closes the lock.

 

Before I strip out the tailgate, have I missed something obvious?

 

Any advice would be appreciated.

 

Thanks in advance.

Edited March 18, 2012 by nigelbrooks

[daddyfixit]

lift the tailgate, top corner ---right hand side;

 

theres a rubber boot that the wiring loom runs inside, pop it off with your fingers and inside there is a bunch of about 12 or more thin wires.

 

1 or more of them will be broken, its dead common, you need to solder in a new length of wire------------in fact i am going outside to check mine again as i could see any gone yesterday, and my c/l is also playing up.

 

there are loads of threads on here if you search through the site.

[daddyfixit]

just spent over an hour sorting out more broken wires--------------not in the tailgate !!!!!!!!

 

no, the new area that needs attention is the drivers door loom;

 

car would lock from inside but wouldnt open again (using the switches on door handle) so i tried to access faqs on here, but pc wouldnt let me. using 12 yr old daughters xmas pressie, i logged back on here to access faqs section, the door wiring looms.

 

10 mins to find 3 broken wires; red,brown, black/yellow--all spliced/soldered and heatshrunk. then 45 minutes taking osf lower dashboard and various panels for access to the round amp connector, as it had fallen back into the a-pillar !!!! what a turd of a job as i do not have fingers like E.T or any disney characters !!!

 

anyway its all back together and working, so thanks to the people who posted the faq.

[nigelbrooks]

Cheers.

 

I checked within the boot but none of the wires are broken/chaffed.

 

Any other suggestions gratefully received.

 

I also can't access the FAQ's for a PC or a MAC so I've contacted the forum mods to ask them to check as they are an invaluable source of advice.

[Barclayboy]

Hi I have a T reg Galaxy. The other night the winows decided to all open....after reading stuff previously I started having a look under seat for the ccm. Which it doesn't have. It dry under thecseat anyway as the first thing I did when I got the car was clear all the drain holes and fix the washer pipe!! I did find some chafged wires in the boot loom which I have taped or repaired. But it still keeps doing it. The door open warning for the tailgate is alight but dimly when boot shut and comes on properly when open. Im thinking it the micro switch in the latch or water ingress into harness giving a resistance fault? Jist wantes somenopinions on it and whether this would be the cause for the windows opening....as that is my main concern rather than a light on the the dash!!

[Barclayboy]

Hi I have a T reg Galaxy. The other night the winows decided to all open....after reading stuff previously I started having a look under seat for the ccm. Which it doesn't have. It dry under thecseat anyway as the first thing I did when I got the car was clear all the drain holes and fix the washer pipe!! I did find some chafged wires in the boot loom which I have taped or repaired. But it still keeps doing it. The door open warning for the tailgate is alight but dimly when boot shut and comes on properly when open. Im thinking it the micro switch in the latch or water ingress into harness giving a resistance fault? Jist wantes somenopinions on it and whether this would be the cause for the windows opening....as that is my main concern rather than a light on the the dash!!

[BrianH]

Hi I have a T reg Galaxy. The other night the winows decided to all open....after reading stuff previously I started having a look under seat for the ccm. Which it doesn't have. It dry under thecseat anyway as the first thing I did when I got the car was clear all the drain holes and fix the washer pipe!! I did find some chafged wires in the boot loom which I have taped or repaired. But it still keeps doing it. The door open warning for the tailgate is alight but dimly when boot shut and comes on properly when open. Im thinking it the micro switch in the latch or water ingress into harness giving a resistance fault? Jist wantes somenopinions on it and whether this would be the cause for the windows opening....as that is my main concern rather than a light on the the dash!!

 

its likly to be a faulty switch - I'd start by trying to operate the passenger door one a few times in both directions just in case its decided to play up (put the key in and operate the lock from outside). If this doesn't clear it then I'd consider unplugging the switches on whichever door you think the culprit is (the drivers would be where i'd start looking inside the gaiter for a broken wire - its possible something is shorting out and the drivers door is the likly cause as its most used followed by the boot gaiter listed above). If none of these seem to solve the problem its possible to unplug the microswitch as its on a seperate connection but involves taking the door card off to do so (check the wires first its easier!)

 

just reread your post - the dimly lit boot adjar light would sound like one of your repaired wires isn't making good contact. Its possible you have more than 1 break in a wire and one of those breaks could account for the dimly lit light, Its recommended on here to splice in new wires rather than rejoining where you can see they are broken so i'd start by doing that first. If you want to isolate the problem to a particular door you can unplug the door from the pillar by removing the multiplug (it twists apart to seperate - if you leave the car with the door unplugged this should tell you which one the problem is with.

Edited February 10, 2013 by BrianH

[gregers]

yep gota agree start at the repaired wires and thoroughly check them.