406 PH2 Electrical faults.

[FromDK]

---EDIT--- I've red some more around the board, appearently, good wiring connections is a joke to this car. So i will try to remove the BSI, clean the wiring, and also look under the drivers carpet for the connectors there and clean them. My car is LHD.

Hi Guys. Im gonna ask you guys as we dont really have a Peugeot Board in Denmark.

Hi have just bought a 406 Phase 2 Estate 136hp 2.0 as of Friday.

The front windscreen wipers have their own life, any of the functions just turns on the wipers and turns them off again, at a random point after 10 - 15 wipes or so.
The rear screen wiper has no functionability at all.
A/C Does not turn on. (Light turns on in display but the pump does not turn on)
Both seat heaters have no functionability. (The light turns but nothing happens)
CD electrical engine thingie (The device that spins the CD around) does not work either.

There may be some more faults, but this is what i can remember right now.

I've been reading around, and i suspect my BSI computer to be defective, other than the faults, the car runs PERFECTLY (Its a really nice drive! Nothing that i would have expected from a French car), it has 218.xxx km on the clock, so here in Denmark it would be considered a high value car (For resale) also the car has been taken care of very nicely, but was sold due to these faults, i bought it thinking i would repair it and use it for daily driving..
Its a very comfortable car, and im getting 15.6 km/l with 125 km/t THAT is REALLY impressive!

ANYWAY, my question is: Im not really sure its the BSI, but as there are no faulty fuses, i suspect the BSI, can you guys confirm my thoughts?
It is correctly assumed that the BSI controls the above listed functions, right?


Thanks in advance, and what a wonderfull board

[FromDK]

Hello.


Crawling thru the forum for my faults (and solutions) I've stumbled across the CD fix. I'm gonna try that tomorrow and edit this post if it had worked

[FromDK]

Ive checked out the wiring under the drivers carpet and everything was clean and dry. The BSI was all clean without corrosion, the motherboard inside did not appear to have any damage at all. Wouldnt it show on the board if there had been a shortcut?

Would the wiper motor act like this if it were done?

[steve_earwig]

appearently, good wiring connections is a joke to this car

They're usually pretty good, no cheap connectors in these, but like every other car on the roads connectors inside the car don't like getting wet...

The front windscreen wipers have their own life, any of the functions just turns on the wipers and turns them off again, at a random point after 10 - 15 wipes or so.

I've heard of this before but I don't think I ever saw a solution for it. Must be worth a search on this forum as well as the coupe club's forum - http://www.406coupeclub.org/ I don't think it has anything to do with the BSI but...

The rear screen wiper has no functionability at all.

Check for voltage at the connector. On my D8 the motor had seized solid where the shaft comes through the body.

A/C Does not turn on. (Light turns on in display but the pump does not turn on)

Is there any pressure in the system? If there is maybe the pressure sensor is dead. Try engaging the clutch manually by putting 12 volts to the wire.

Both seat heaters have no functionability. (The light turns but nothing happens)

The elements do eventually burn out, they can be repaired (there's a how to on the coupe club forum) but it's not for the faint hearted. As before, a test on the supply wires might tell you what to look at. The connectors are the 2-way light brown normal-sized ones.

CD electrical engine thingie (The device that spins the CD around) does not work either.

[/quote][/quote]Ah, this I know nothing at all about. Apart from they wear out like anything else (including me )

[FromDK]

The most annoying thing is probably the wiper problem, i've been searching the internet consistently for a solution but without luck.
I will try to measure the wiper motor later today maybe. About the A/C i'm going to have it serviced later this month, its probably just the pressure.
The seatheaters probably needs fixing as the elements may have gone busted, but i will measure later today aswell.

[Doggy]

The BSI does control the wipers, including the parking position, (which is kind of odd to my way of thinking). IIRC puggy had a similar problem with his, but I can't remember how it ended, sorry.

I suspect there will be two relays in the BSI to operate the motor on slow and fast speeds, but my usual source bizarely doesn't have a diagram for the wipers. Maybe steve can oblige?

[mjb]

Try the BSI reset procedure before removing it - might save a whole load of work

[FromDK]

I may fail the BSI reset procedure as the button on my key as come off beyond my ownership of the car.

But i can still shortcut the key with a little wiring-loop, so i may actually try this (again, but with more caution), i tried it before but i failed to hold the "button" for a full 10 seconds.

As far as i remember (im at work right now), the 2 speed settings work fine, but still stops randomly, the autowipe also wipes 10 times and stops randomly as does the single wipe option and washer option.


I will try the BSI reset very carefully when i'm off duty around 4 PM, and ill report back.

Thanks a lot for all your answers, they are highly appreciated!



Is everyone mods here?

[dirtydirtydiesel]

With in depth knowledge of 406 electrics yes

[steve_earwig]

The BSI does control the wipers, including the parking position, (which is kind of odd to my way of thinking).

It's all tied in with the rain sensor. Actually, the relays for it are inside the BSI on semis and in the engine fuse panel on fulls.

It might help to know which it is - semi-mux (1999-mid 2001) or full-mux (mid 2001 - end)

Oh yeah, the wipers also change speeds depending if the car is moving or stationary too.

[steve_earwig]

I've now had a look through the coupe club forums, passion-406 and 406coupe.com but no joy on the wipers. I couldn't even find any references to the fault on the French ones All sorts of other wiper issues (wipers won't turn off? ) so I know I was using the right words.

[steve_earwig]

http://www.frenchcarforum.co.uk/forum/v ... op#p286970 - I guess that's a semi if he can hear the relay.

[FromDK]

I guess its a semi mux, its from 2000.

I can def hear a relay for the rear wiper, not sure about the front tho. But it has rain sensor, yea.

Also went thru the coupe foru, but with no luck, ive found a similar problem but without a solution.

[steve_earwig]

That's all I found on there, which was more than I found on the French 406 forums.

What about that thread on the French Car Forum? Is that not a similar/the same fault as yours?

[FromDK]

Not sure which one you are thinking about?


I can hear a relay for the front wipers, but isnt just the one on/in the BSI?

I'm pretty sure all D9's uses BSI to control fronwipers, and only D8's have the old type, correct me if i'm wrong? (I would actually be glad to be wrong, because 600£ for a fix, is gonna make me cry )