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All electrics cut out (except headlights) when driving

electrics indicators wipers

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#1 tmitc

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Posted 11 April 2013 - 08:44 AM

Hi,

 

I've had my secondhand 2001(ish) Picasso for a couple of years.

 

A year or so ago I experiened a problem where teh electrics all stopped working on start-up. No wipers, indicators, windows, radio etc - only the headlighst worked.

 

Pressing the internal light buttons a few times usually made the electrics all come back on.

 

This problem went away after a few weeks and only reappeared a week or so ago.

 

Now, though, pressing the lights does not work at all.

 

I read somewhere that this could be a computer fault and that there was a remedy involving pressing the button on the key fob (my key has been missing its button since I bought it).

 

Any ideas?

 

FYI, I know as much about the inner workings of a car as I do about the inner workings of a fridge, iPhone or space shuttle, so be gentle :)



#2 Charliee

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Posted 11 April 2013 - 09:44 AM

I think you are confusing this with a software re-boot. Key fob won't do this. The correct way to do a software re-boot is in FAQs, and worth a try in your case. Do follow the rules.  After doing it you may notice car runs a little sluggishly for a hundred miles or so - don't worry, this is the computer adjusting for optimum and takes a while.


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#3 tmitc

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Posted 11 April 2013 - 10:29 AM

Thanks for that, I'll give it a try.



#4 tmitc

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Posted 11 April 2013 - 10:38 AM

Sorry, I may be thick, but when you say software reboot, do you mean this? I've searched for software reboot and found nothing:

 

Correct procedure - Battery Disconnection.

PROCEDURE FOR BATTERY DIS-CONNECTION (The 3 Minute Rule)
Whenever a vehicle battery has to be dis-connected, switch off all equipment,
interior lights etc, close the doors leaving the drivers window open.
Switch off the ignition and remove the key and any DIAG equipment.

Wait a full 3 minutes before disconnecting the battery.

The BSi must be allowed to go to SLEEP i.e. into "power save mode". Do not
operate any equipment on the vehicle during this time. Remember, even
opening the bonnet will wake the BSi on a vehicle fitted with alarm.

If the battery is under the bonnet, open the bonnet first and leave it up. 807
batteries can be dis-connected through the drivers window, remove floor cover
first. (note, Pics are under the passenger seat)

ALWAYS disconnect any DIAG equipment and do not operate any plips from
other vehicles during the 3 minute waiting period.


PROCEDURE FOR BATTERY RECONNECTION
Unless otherwise instructed by Product Service, you must always
carry out the following procedure, often referred to as a "soft re-boot", to
minimise the possibility of the BSi corrupting its own software when
reconnecting the vehicles battery supply.
Ensure the procedure for battery disconnection has been adhered to and
importantly all BSi functions were switched off with the drivers window left
down.
1 Close all doors
2 Remove ignition key if left in ignition
3 Reconnect battery. DO NOT open any doors
4 Wait 10 seconds
5 Switch on headlights through the drivers window (you will hear a "bong") (note: Snap-on says Side-lights)
6 Switch on ignition then start the vehicle and check system functions

NOTE: Upon reconnection, if any vehicle function controlled by the BSi i.e .
interior light is switched on,the internal operation of the BSi has the potential
to spike or corrupt its configuration and software program......



#5 rawthey

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Posted 11 April 2013 - 10:58 AM

That's the one, except that it's the generic instructions for Citroen models with batteries in the conventional place under the bonnet. You don't really need to struggle trying to disconnect the Picasso battery under the passenger seat by by reaching through an open window!.

 

Stay in the car, shut the doors, turn everything off, remove the ignition key and wait 3 minutes before disconnecting the battery. When once the battery has been disconnected you can open and close doors as much as you like because the electrics won't know about it. Just make sure that all the doors are shut and everything is still switched off before you reconnect the battery.


Edited by rawthey, 11 April 2013 - 11:00 AM.

Mike
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#6 tmitc

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Posted 11 April 2013 - 11:15 AM

Cheers, I'll report back!



#7 tmitc

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Posted 11 April 2013 - 04:45 PM

Tried the software reboot (three times!) problem still there.

 

No electrics other than headlights (and, briefly, windows).

 

How long should I be leaving the battery disconnected for?



#8 tmitc

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Posted 11 April 2013 - 04:52 PM

Other forums talk about holding down the lock button on the key when you start the ignition after reconnecting the battery. I have no button on my key though...



#9 stimulator

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Posted 12 April 2013 - 08:07 AM

The key fob button pressing is only to reconnect the key fob to the car IF when changing the battery the LOCKS will not operate. It has nothing to do with anything else.

 

Your problem would appear to be in your electrics. possible the BSI has corroded pins or your under bonnet battery + terminal is loose or dirty


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#10 tmitc

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Posted 12 April 2013 - 08:52 AM

Thanks, I'll take a look.

 

If it's any help, when I reconnect the battery and turn the lights on, I don't hear a 'bong'



#11 gittos

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Posted 12 April 2013 - 09:48 AM

Thanks, I'll take a look.
 
If it's any help, when I reconnect the battery and turn the lights on, I don't hear a 'bong'


Mine doesn't, seems to be other cit/pug models.
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#12 stimulator

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Posted 12 April 2013 - 10:31 AM

[attachment=15933:ABS block.jpg]

 

This photo shows the under bonnet battery terminal. It's under the black cover with + on it middle lower of the picture. One lead goes from here to the battery the other to a) starter motor B) other electrical points. Remove cover and undo the terminals, clean and apply battery terminal grease, refit and do up tight. Hopefully cure fault.


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#13 tmitc

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Posted 12 April 2013 - 11:32 AM

Thanks. Do I need to disconnect the battery first?



#14 stimulator

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Posted 13 April 2013 - 07:10 AM

I would as although this also the battery terminal it will be live and you don't want to short it to any car part. There is a procedure in FAQs on how to disconnect the battery and that should be followed before disturbing this terminal.


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#15 tmitc

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Posted 13 April 2013 - 11:20 AM

attachicon.gifABS block.jpg

 

This photo shows the under bonnet battery terminal. It's under the black cover with + on it middle lower of the picture. One lead goes from here to the battery the other to a) starter motor B) other electrical points. Remove cover and undo the terminals, clean and apply battery terminal grease, refit and do up tight. Hopefully cure fault.

 

Tried this, tried soft reboot, problem still there - all my electrics (dash, indicators, wipers, radio, windows) do not work. Could it be fuse-related? Seems odd, because for a while on Thursday, all the electrics were working, then went off, then came back immediately when I pressed the interior light button.

 

If a fuse was blown, surely it wouldn't work at all.

 

I fear that I'm going to end up taking the car to a Citroen garage and I'll end up with a massive bill.

 

Don't suppose anyone on here lives near Rutland and fancies a tinker?



#16 tmitc

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Posted 13 April 2013 - 11:22 AM

possible the BSI has corroded pins 

 

How would I check this?



#17 tmitc

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Posted 13 April 2013 - 11:29 AM

Should mention: the orange engine light comes on and beeps on start-up, or when the electrics cut out when driving. Sometimes, when I press the internal lights, it beeps again, but does not restore electrics







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