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406oc.co.uk • View topic - Center lock won't work after few seconds

Center lock won't work after few seconds

Talk about the 406's electrical system, what wires do what, how to add extra functionality, etc.

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Center lock won't work after few seconds

Postby paniya88 » Thu Apr 20, 2017 5:55 am

Center lock won't work few seconds after I took the key from ignition barrel
It seems like power to the doors will be cut down after few seconds. Door puddle light also turn off and Display time & radio channels reset when I turn on the key.
What might be causing this? Car is 2001 peugeot 406 2.0 16v
paniya88
1.6 8v
 
Posts: 15
Joined: Tue Mar 21, 2017 4:35 am

Re: Center lock won't work after few seconds

Postby paniya88 » Thu Apr 20, 2017 5:17 pm

anyone ?
paniya88
1.6 8v
 
Posts: 15
Joined: Tue Mar 21, 2017 4:35 am

Re: Center lock won't work after few seconds

Postby NinoB » Fri Apr 21, 2017 6:20 am

Try resetting your bsi
NinoB
1.8 16v
 
Posts: 62
Joined: Tue Jul 22, 2014 10:39 am

Re: Center lock won't work after few seconds

Postby frog » Fri Apr 21, 2017 9:18 am

Maybe a blown fuse, from Haynes it looks like MF8 (maxi-fuse 8, "Passenger compartment fuse") or MF9 ("Built-in system interface") are good candidates to check. Maxi fuses are in the engine compartment fuse box (BM34). In some models, the maxi fuses cannot be accessed directly, they in a separate box under the normal printed circuit board; see images on https://citroenc3owners.com/citroen-c3- ... s-t36.html (search for text MAXI).

See also http://www.bba-reman.com/forums/Topic162464.aspx that seems to describe the same issue.

See also this image: http://www.mediahump.com/image/57320 .
Current "fleet":
2003 406 Estate 2.0HDi 110 (109 PS) - 7 seater
2001 Citroen Saxo 1.6i 8v 100 (98 PS)

Previously owned:
2000 406 Sedan 2.0 HDi 90 (90 PS)
2000 406 Coupé 2.0i 16v 138 (135 PS) - Riviera Blue

PP2000 user, can help with faults / diagnostics in the Netherlands.
frog
2.0 16v
 
Posts: 110
Joined: Sun Aug 24, 2014 12:18 pm
Location: Netherlands

Re: Center lock won't work after few seconds

Postby paniya88 » Fri Apr 21, 2017 12:02 pm

paniya88
1.6 8v
 
Posts: 15
Joined: Tue Mar 21, 2017 4:35 am

Re: Center lock won't work after few seconds

Postby paniya88 » Wed Apr 26, 2017 2:59 pm

paniya88
1.6 8v
 
Posts: 15
Joined: Tue Mar 21, 2017 4:35 am

Re: Center lock won't work after few seconds

Postby frog » Fri Apr 28, 2017 9:16 am

I summarize your issues. After contact off and removal of key, after 30 seconds:
- Radio loses all its memorised channels
- Door puddle lights turn off
- Central door locking does not work, key operates only mechanically opening one door at a time

I looked in SEDRE (the DVD with the electrical schematics) and found the following schematics (see below) that seem to be applicable to your car model.

As you say the radio loses all its memorised channels, so it must be the permanent power feed (+ 12 V) that is failing. The first schematic shows its path (indicated in yellow): Battery --> BM34 MF8 --> BH28 SH (Shunt) --> F10 . Maybe it is not a blown fuse but a broken wire?

BM34 = engine fuse box
BH28 = passenger compartment fuse box

The line via MF9 cannot be the problem, it is via this line that the BSI powers the radio for another 30 seconds after key contact off.

I also added the diagram to all the power feeds to the BSI box. And I added the diagram for the interior lighting. Hope this is helpful for you.

Radio schematic:
Image

BSI power schematic:
Image

Interior lighting schematic:
Image
Attachments
Interior Lighting Schematic.jpg
BSI Power Schematic.jpg
(108.6 KiB) Not downloaded yet
Radio Schematic - Permanent +12V.jpg
Current "fleet":
2003 406 Estate 2.0HDi 110 (109 PS) - 7 seater
2001 Citroen Saxo 1.6i 8v 100 (98 PS)

Previously owned:
2000 406 Sedan 2.0 HDi 90 (90 PS)
2000 406 Coupé 2.0i 16v 138 (135 PS) - Riviera Blue

PP2000 user, can help with faults / diagnostics in the Netherlands.
frog
2.0 16v
 
Posts: 110
Joined: Sun Aug 24, 2014 12:18 pm
Location: Netherlands

Re: Center lock won't work after few seconds

Postby paniya88 » Fri Apr 28, 2017 9:56 am

paniya88
1.6 8v
 
Posts: 15
Joined: Tue Mar 21, 2017 4:35 am

Re: Center lock won't work after few seconds

Postby paniya88 » Wed Jun 07, 2017 4:07 pm

Thanks for everyone. Finally issue has been solved. It was broken wire like you told. My mechanic checked wire harness and found the broken wire. Thanks again everyone specially frog
paniya88
1.6 8v
 
Posts: 15
Joined: Tue Mar 21, 2017 4:35 am

Re: Center lock won't work after few seconds

Postby frog » Thu Jun 08, 2017 6:59 am

You're welcome. Glad you got it fixed! :D
Current "fleet":
2003 406 Estate 2.0HDi 110 (109 PS) - 7 seater
2001 Citroen Saxo 1.6i 8v 100 (98 PS)

Previously owned:
2000 406 Sedan 2.0 HDi 90 (90 PS)
2000 406 Coupé 2.0i 16v 138 (135 PS) - Riviera Blue

PP2000 user, can help with faults / diagnostics in the Netherlands.
frog
2.0 16v
 
Posts: 110
Joined: Sun Aug 24, 2014 12:18 pm
Location: Netherlands


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