Boot Lock Not Locking

[Lloyd]

hello everybody first post,

the boot in my girlfriends car wouldn't open the other day so she decided to push it from the inside to open it (which worked) but now it won't lock. 

The two catches work on the outer parts of the boot but the electro switch seems to be in the locked position. 

 

also if anyone could please explain how the middle boot lock works

Any help would be great, if you need any more info let me know 

Thanks 

Lloyd

[coastline taxis]

maybe a battery disconect and reconect may reset everything. Or it may need to be plugged in to reset the switch but start with the cheapest option 1st

[Johndouglas]

Hi Lloyd.   Steve - Coastline suggested disconnecting the battery.   If you are new to Citroens it's worth knowing that some electrical niggles can be sorted by resetting the BSI - disconnecting the battery.   It doesn't always work but it's the cheapest thing to try first.    But it's important that it's done correctly.   Here's how:-

 

Put the driver's window down, lift the bonnet and ensure all equipment is switched off.
Ensure all doors are closed and remove key from the ignition.
Wait for 3 minutes, disconnect the vehicle battery and wait 15 seconds.
Reconnect the vehicle battery, wait a further 10 seconds (do not open doors.).
Switch on the side lights through the driver's window.
Switch on the ignition and check system's functionality.
Hold lock button on key down for 10 seconds.
Remove key open & close door test central locking system.
Start the engine and complete the system's check.

Reset the clock and date.
Failure to follow this procedure could result in incorrect operation of many BSI related items.

 

When you've tried it, come back and tell how it is.

[paul.h]

Your posts do not mention which model of car you have, if the central locking is working properly and I do not understand what you mean by the 2 catches on the outer parts of the boot - on the C3 hatchback, it is like any boot/hatch door with a single latch in the middle which on closing locks around a stud on the body work.

 

It may well be you need a new switch/latch. With the boot open, you can put a screwdriver through the latch hook and pull it down to maybe undo the lock, then push it back up to close the lock to show it works before pulling it open again so the boot can be closed. If the electric switch is not working and none of the previous posts help, if you pull off the boot plastic trim, you can check if the switch wiring and connector are ok. You should also check the wiring is not broken between the body and the boot in the rubber tubing. Check for a 12 volt supply at the switch.

[Lloyd]

Hi guys thanks for the input, 

 

It is a pluriel so doesn't have a traditional boot. i have attached a picture.

 

I just tired resetting the BSI and nothing happened.

 

The two locks in the red are working and it is the middle one in the green that is not working. It is not a latch and looks like a magnet.  

 

http://i473.photobucket.com/albums/rr96/Lloyd_Earle/a28f0197-9afd-435c-818b-eca24965e190_zps2767f64a.jpg

 

 

 

 

Here is a close up 

 

http://i473.photobucket.com/albums/rr96/Lloyd_Earle/20130814_180101_zps1bfb6dcc.jpg

[Lloyd]

i have also checked that all the windows work and the roof goes all the way back 

[coastline taxis]

Are you meaning the glass is not opening  But the whole boot section is

[coastline taxis]

4got to ask does yours have the folding roof

[Lloyd]

yes it has a folding roof which works fine. the mechanism that controls this is next to the middle lock (the round sliver thing in the picture).

 

The boot is open in the picture but when i close it usually the magnet engages and then the outer (traditional) latches engage. Now nothing happens when i close it.

 

I know the latches still work as they are controlled by the boot button. they can still be activated if i push down on the boot to close it. also if i manually flip the latches across they still pop open when i use the boot lock.

[coastline taxis]

check your roof switch as this wil stop the boot from opening. Maybe open ane close the roof a few times

[paul.h]

I have not seen a Pluriel before and from what it gives in the handbook (seen on Citroen Service site), it seems a bit complicated.

 

You could check where the wiring goes through the bottom of the boot from the body in the rubber bellows to see if there are any breaks in it. I am guessing the magnet may be an electro magnet if it can be able to be switched on and off and if so then maybe it is not getting any power - however, there is no obvious mention of it in the Citroen procedures.

 

Diagnostic equipment at a dealer can check for the boot and rear window opening control faults - it may be you need to have this done, otherwise it may be a case of checking each component and switch for a power supply and that it works and that the switches are clean and not damp.

 

If it helps to see the different parts, you can see the Citroen diagrams on the service.citroen website, register as another professional, member of the Citroen Owners Club. The boot and rear screen can be seen under bodywork, rear section, lock.

[Lloyd]

thanks guys,

 

I have opened and closed the roof a few times to check it. 

 

It looks like i will have to chase the wires to make sure i am not missing something obvious. 

 

Do you have link to the citroen webpage to look at the diagram?

 

On another note the horn has just stopped working. any advice on common faults with that?

 

Cheers Lloyd

[paul.h]

Citroen service site, you will need to register to see the free services parts diagrams but the handbooks can be seen without registering.

http://service.citroen.com/do/changerParametres

 

The horn could be the start of a problem with the comms 2000 unit which is the big bit under the steering wheel which includes the wiper and lights and indicator switches. However, first try 12volts direct at the horn to see if it works and check its wiring and connector. Also check the list of fuses in the handbook in case it is a fuse.

 

You could check if the boot door has a magnet by seeing if it attracts something steel such as a key or screwdriver.

[THOMASROBLOT]

hello I know pretty well the C3 plural, I am used to work on it. I read your problem, and the first things you have to do, is to reboot your roof computer. It isn't complicated to do, but it is a bite hard for me to explain it. So excuse my english mistakes...........so you have to check the roof system. first start your engine, secondly go down the roof completely you must go on the boot. thirdly go up the roof and when your roof is completely closed normally your switch must be completely turned and now the more important thing you have to push on the roof switch during 30 seconds and after this time you must hear a sound like a motor that move. and now I hope everything will goes well for your car boot. perhaps it could be an other problem on your car.. first you must try this, and we could try other things later.... good luck

 

I leave below a picture of the roof switch I told you

 

Edited August 17, 2013 by THOMASROBLOT

[Lloyd]

Hi Thomasroblot, 

 

Thank you for your reply. Your english is very good much better than my french.

 

I tried the method you described and nothing happened. i could not hear the motor you described. 

 

What else would you advise?

 

All the best Lloyd

[Lloyd]

I went to the car just now to have another look at it and now the outer locks won't even work so now i can not get into the boot at all. 

then i thought i would try the roof and that now only goes back a little bit (like a sunroof) and then struggles to get back in the closed position. 

The horn is still not working and i will check it with the 12v battery today.

Is there any chance that all of these problems are connected or have i just had three different things go wrong. 

 

Any help would be great 

 

Lloyd

[Lloyd]

just checked the horn on the battery and that is working fine.

[THOMASROBLOT]

Hi

Does your roof goes back on the boot?

Had you tried to push on the switch during several second?

[THOMASROBLOT]

It is sur that your problem are not connected.

Except for the roof and the boot. The twice work together.

Try an other time to close the roof completely and to push 30second on it.

[THOMASROBLOT]

And does your central locking working?