unlocking itself..

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

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lionyo
1.8 16v
Posts: 99
Joined: Sun Nov 01, 2009 5:11 pm
Location: UK

unlocking itself..

Post by lionyo »

Hi,

My 406 unlocks itself. When I press the lock button on the key fob the car makes a siren like sound and unlocks itself...

Anyone know to resolve this?

Many thanks!
GingerMagic
3.0 24v
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Joined: Fri Apr 06, 2012 9:02 pm
Location: Bournemouth

Re: unlocking itself..

Post by GingerMagic »

Hi, mine does this too, but only if a door or bonnet is open or ajar.
Maybe double check all is closed properly and if it still happens then it could be an open circuit or bad connection somewhere?
2003 2.2hdi estate - mine
1998 Volvo 940 auto estate - also mine
2019 Citroen C3 something - the wife's
PP2000 user, can help with faults / diagnostics in the Bournemouth area.
teamster1975
Site Admin & Mad Biker!
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Location: Woking, Surrey

Re: unlocking itself..

Post by teamster1975 »

The boot latch sticking can cause this, certainly did on my old D8's!
1996 406 1.8LX Got a bad case of hydro lock!
1996 406 Executive 2.0 Turbo XU10J2TE No longer hangin' on in there :(
1997 Honda CB500V
2003 Volvo V40 1.8 GDi SE killed by a nutter in a beemer 5 series
2008 Mondeo 2.0 TDCi Titanium X

"Always look on the bright side of life, dedo, dedo dedodedo"
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lionyo
1.8 16v
Posts: 99
Joined: Sun Nov 01, 2009 5:11 pm
Location: UK

Re: unlocking itself..

Post by lionyo »

Nothing says that the doors are open... Where is the connections ? I think something might be loose?
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DaiRees
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Location: Merthyr Tydfil, South Wales (God's Country!)

Re: unlocking itself..

Post by DaiRees »

just thinking here, but if any door fails to lock the car will unlock itself, so perhaps one of the lock solenoids is giving up?
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