Battery charge fault and no heater fan

[MikeLowrey]

Hey guys
I live in central Europe, Greetings to all of you..
I have question regarding my 406 coupé

My cabin fan blower stopped working while consequently i also have a battery charge fault light/message on the display.
Checked the battery (it's new btw) everything is ok. Checked the alternator and it is charging eventhough it says it's not.
I removed the fuse 5A (under the steering wheel) that is for the Battery +ve signal for Built-in Systems Interface and everything starts working, the fan the battery charge fault is no longer displayed (except for the wipers)...
Tried replacing the fuse with a new one but as soon as i put it back in the same problems...
Also replaced the fan resistor.
I also noticed when the car heats up properly and when at idle, the hanbrake warning light comes on, but as soon as i rise the RPM's the handbrake warning goes away..
Any ideas???
Guys i am desperate

Peugeot 406 coupé 3.0 v6 Es9j4s engine

P.s. i apologies if i have opened a new thread

[frog]

Maybe also post on the other forum: https://406coupeclub.org/PHPBB3/ ?

[frog]

Also it is a good idea to connect with PP2000 software via a Lexia cable on the OBD port (just google "lexia cable pp2000"). Read out the fault codes, especially those of the BSI.

[frog]

A similar topic seems to be https://406coupeclub.org/PHPBB3/viewtopic.php?t=42121 . Solution in that case was the fitting of a new alternator.

[MikeLowrey]

A similar topic seems to be https://406coupeclub.org/PHPBB3/viewtopic.php?t=42121 . Solution in that case was the fitting of a new alternator.

Thanks for replying m8.
If I'm honest i tried connecting with the PP2000 a few month ago ( a good member from our local forum lent it to me) and i can't get it to communicate with the BSI...

Also visited a car electrician, he said that the BSI aas physically damaged.. so i bought one on ebay for 250€.
Called the guy numerous times and he wouldn't answer so took the "new BSI" and the old one to another electrician to make a clone.
Sadly , i witnessed no miracles after replacing the old one.
Also bought and replaced the ignition switch where some say it could be due to burned contacts in the switch and again nothing.

I will post ghe same to the 406coupe org as you suggested, i truly hope i get t the end of this issue.

I appreciate your help and reply

[frog]

I removed the fuse 5A (under the steering wheel) that is for the Battery +ve signal for Built-in Systems Interface and everything starts working, the fan the battery charge fault is no longer displayed (except for the wipers)...

Can you explain a bit more? Which fuse number is that?

So if I understand correctly, you pull the fuse, so that the BSI is no longer powered. Then the fan is working as expected? I.e. you can also control the fan speed?

I have the electrical schematics (SEDRE dvd). I can look up your vehicle but for that I need some information. Most important is the DAM number (also known as RP number or ORGA number) of your vehicle.

No water leaking inside? No wet carpet? See e.g. http://www.406coupeclub.org/PHPBB3/view ... =5&t=39194

[MikeLowrey]

It is fuse no. 9. 5A
For the Battery +ve signal for Built-in Systems Interface (UNDER THE STEERING WHEEL (steering on the left side)

Yes, when i pull the fuse out , the fan starts working normally and i can normally control the fan speed , also the battery charge fault warning on MFD and on the dash goes away.
But if turn the engine off and when turning the ignition to on position i get a warning that says , oil pressure low or something like this.

About a year ago took the car to a local mechanic, for a heater matrix replacement.
After the replacement, i started the car , i can remember the fan blower and the battery charge fault warning came on for a few seconds, but it went away.
I also noticed the carpets were very wet, i later tried and dried the footwell..

I'm trying to post an image of the fuse box but there's no option for it here.
My DAM is "385 2U5" , vin number is VF38CXFXA81270589 if you perhaps need it as well.
I sure do appreciate your help my friend

[frog]

My DAM is "385 2U5" , vin number is VF38CXFXA81270589 if you perhaps need it as well.

That is not a valid DAM number? It translates to date of 27 may 1987. https://406coupeclub.org/Apps_BuildCodeTranslator.php shows where the sticker is located.

I'm afraid I cannot translate the VIN number to the DAM number. If you want you can create an account on https://public.servicebox.peugeot.com/ and pay (I think) € 5 to retrieve your vehicle data (including the correct DAM number).

If the carpet was very wet, the electrical connectors may be corroded. You need to remove the carpets under the steering wheel to check all the connectors.

[MikeLowrey]

My DAM is "385 2U5" , vin number is VF38CXFXA81270589 if you perhaps need it as well.

That is not a valid DAM number? It translates to date of 27 may 1987. https://406coupeclub.org/Apps_BuildCodeTranslator.php shows where the sticker is located.

I'm afraid I cannot translate the VIN number to the DAM number. If you want you can create an account on https://public.servicebox.peugeot.com/ and pay (I think) € 5 to retrieve your vehicle data (including the correct DAM number).

If the carpet was very wet, the electrical connectors may be corroded. You need to remove the carpets under the steering wheel to check all the connectors.

When i get home from work, I'll take a look at it again. The thing is that the DAM No., under the bonnet is somewhat erased, i must have red it wrong.

[MikeLowrey]

Ok.
After taking a 2nd look at it, i think maybe the correct
DAM no., is 8852U5.
There's also the 9630220880 no., on the bottom of the sticker on the edge of drivers door.

[MikeLowrey]

Here's the link t the DAM image
https://postimg.cc/vDbsNw4P

[frog]

Yes, that must be 8852. Build date: Friday, 2nd February 2001. Build code is on nearside front suspension strut under the bonnet, so it must be a D8 (D9 has a sticker on the door).

[MikeLowrey]

You think you can now access the information on your electrical schematics?
D8
Interesting, i always thought mine was a D9.

[frog]

You think you can now access the information on your electrical schematics?
D8
Interesting, i always thought mine was a D9.

I think you are right. But https://406coupeclub.org/Apps_BuildCodeTranslator.php says that D9 have a DAM number sticker on the door, D8 have it printed on the strut. But then again, https://406coupeclub.org/Coupe_Versions.asp says that D9 is from end of 1999 onwards.

I will have a look for the schematics, but I'm not sure if they are very useful for you. Did you ever check the fuse box inside the engine? It is called BM34. Like the BSI box, It has some "computerized logic". I once replaced that BM34 box in my vehicle, and that caused the same "Battery charge fault". So I replaced it back with the original one, then that fault disappeared.

Underneath that box there is a mass connection point. It is very important that all mass connection point have good electrical contact with the chassis.

I am guessing that the "computerized logic" thinks the battery is not being loaded, therefore sends a message to equipment to go to low power mode. For the heater fan it means to shut off completely. I think that, when the BSI box is off, those messages are no longer sent.