2001 HDI Estate Electrical Fault

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

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paulb2004uk
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2001 HDI Estate Electrical Fault

Post by paulb2004uk »

Never I hear you say lol

I have a problem with my electrics. Symptoms are as follows
If I have the drivers door open and try to start the car I get immobiliser fault, close the door, it starts ok
If I open the door with the drivers window open, it loses it memory so won't wind to the top automatically
When I open the drivers door, the battery light comes on then goes off when the door closed.
The interior light comes on when removing key from ignition, goes out when opening the drivers door
the comes on again when the door is closed then goes out after 15 to 20 seconds.

Not sure if its related, battery seems low if the car is left a couple of days (Battery 3 months old) - engine slow to turn over when starting.

Any idea where to look.

Thanks for any advice

Paul.
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highlander
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Re: 2001 HDI Estate Electrical Fault

Post by highlander »

Lift the carpets in the footwells and ensure the carpets, plus the insulating foam underneath them, are not full of water.

Water ingress can cause pooling in and under the carpets - which is a shame because that's exactly where Peugeot decided to put a lot of very important electrical connectors. This has happened to a number of people before - bizarre electrical gremlins seem to be triggered by causing these connections to short and cross-talk. It would also explain why your battery is being drained faster than you'd expect it to be.

Also check the spare wheel well in the boot (turns into a swimming pool, commonly caused by water coming in through the tail light clusters), check the headlining around the base of your aerial (water can leak through the aerial base), check your sunroof (if your car has one) isn't leaking, and ensure the rubber seals around your doors aren't perished, damaged, or missing.

Hope it's not water ingress, because that's a bloody nuisance.
2002 (D9) Peugeot 406 Coupe SE, 2.2 litre Petrol. Scarlet Red/Rouge Ecarlate/Rosso Scarlatto. Black Leather interior. SOLD :(
2008 (E60 LCI) BMW 525i M-Sport, 3.0 litre Petrol. Carbonschwarz Metallic. Black Dakota Leather and Myrtlewood interior.
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lozz
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Re: 2001 HDI Estate Electrical Fault

Post by lozz »

Iwouid check for broken/chaffed wires in the door loom,
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mjb
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Re: 2001 HDI Estate Electrical Fault

Post by mjb »

lozz wrote:Iwouid check for broken/chaffed wires in the door loom,
:arrowu: Wot he said

Failing that, try disconnecting stuff in the door one thing at a time (even the speaker!) to see if what's knackered, but I'm reasonably confident you've got a knackered door harness. If you lower the window with the door card off, you'll probably see movement in the loom - that'll be your problem, or the cause of it at least
<steve_earwig> I think this forum is more about keeping our cars going with minimal outlay than giving our cars more reason to go bang
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