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        General >> Problems >> no electrics
        
(Message started by: dca on Jun 16^th, 2007, 10:40am)

Title: no electrics
Post by dca on Jun 16^th, 2007, 10:40am

hi, i have 2.3 l 16 v scorpio ultima and NO ELECTRICS
HAVE checked battery & terminals seem ok .any ideas plse. david a

PLSE. SEE REPLY BELOW FROM DCASVW MY SCORP IS STILL GOING FINE (KEEPING OUT THE RAIN 'TILL GET THE BATTERY TRAY & ECU PINS LOOKED AT) ;) ;)

Title: Re: no electrics
Post by v4-max aka Cheekyboy1 on Jun 16^th, 2007, 11:50am

check all fuses on battery side fusebox, due to the recent inclement weather conditions the fuse box may have got damp, and blown the fuses.

Title: Re: no electrics
Post by Spannerdemon on Jun 16^th, 2007, 12:53pm

Have you got a battery cover, and covers over ALL of your fuse boxes?

Also check the OTHER ends of your battery connections for security, particularly the Earth strap is firmly bolted on. There's also a small black wire which must be connected to the battery, have you forgotten it?

HERE (http://www.fordscorpio.co.uk/battery.htm) See the last bit of advice on this page.

Also go under your glove box, and make sure that the multi plug going into your ECU is secure and that the pins are dry.
You'll need a 10mm spanner to remove the plug.
If water has gone down the back of the battery through the large grommet on thre bulkhead, it will trickle down and short out the pins on the ECU.

Max has already dealt with the possible fuse issues, so hopefully you'll be able to diagnose the problem now. ;)

Title: Re: no electrics
Post by Highlander on Jun 16^th, 2007, 4:50pm

No electrics at all? nothing?

Title: Re: no electrics
Post by sector-9 on Jun 17^th, 2007, 11:51pm

If you've got a multimeter or test lamp then you can find where the power goes to before it stops. It's almost certainly getting to the alternator and starter. Make sure you connect the black lead (or earth lead of lamp) direct to the battery negative terminal first, then repeat with it connected to the body as it may be an earth fault.

The other possibility is a badly broken battery which shows a voltage across the terminals - until you put any kind of load on it then it drops right down. You can tell by measuring the terminal voltage with the ignition off, then when turned on.

Darren

Title: Re: no electrics
Post by dcasvw on Jun 26^th, 2007, 5:26pm

i had green flag man out for a look . he pronounced battery flat & jump started the car which has been ok since!!!
he was not sure about battery or alternator being faulty so i went to a "lucas depot " in yeovil uk & they pronounced both o k .
my guess is battery was drained by a "watery fault" after car was out in some bad weather.
that suggestion about water shorting the ecu sounds interesting passengers have mentioned the odd splash on there legs !!
anyway scorp is back in the garage keeping dry we made it back home to france
despite the b ....wet weather you guys gave us during the last two weeks.
thnks for all help as ever impressed with response

Title: Re: no electrics
Post by tintin on Jun 26^th, 2007, 10:06pm

keep your eye on that passenger water leak, when mine went (big hole under the battery), soaked ECU and PCM, finally fixed (bodged) and working for a few months, but got myself another damp ecu last week..... the problem will only get worse ;) when i get mine working again, its going in a plastic bag !!

Title: Re: no electrics
Post by Spannerdemon on Jun 26^th, 2007, 10:12pm

Quote:

that suggestion about water shorting the ecu sounds interesting passengers have mentioned the odd splash on there legs !!

Don't ignore this. Water gets behind the battery where there is a large grommet. It then travels down the loom (above the the front footwell), into the ECU plug. The pins in the ECU are quite delicate, so my advice would be to remove this plug ASAP, and give all the pins a VERY GENTLE clean, and then seal the plug back in with a good spray of silicone to keep water away in future.

Checking the ECU is a ten minute job. It sits in a drop down tray just under the glovebox, and you'll need a 10mm spanner to remove the plug. Once done, it will be obvious if water has got into it. If so, you need to deal with it , or it could well cost you another ECU in due course.

This was mine about a year ago. I was lucky enough to get a spare one from another member. ;) You can see where corrosion had started along the bottom side of the ECU pins. Green oxidisation had started to actually damage two pins which were loose as a result.

http://i52.photobucket.com/albums/g25/xtr42gpnd/ECU2.jpg

If you HAVE got this problem, then you need to re-seal the grommet behind the battery. Remember to clean the pins and socket plug GENTLY........they are quite easy to damage. Make sure that the battery is disconnected when you do it, you don't want to short out anything. :o

Welcome to the site. ;)

Title: Re: no electrics
Post by mikesmount on Jun 27^th, 2007, 8:43pm

I have twice had a total electrical failure ... once in Normandy, when I sat in the car paralysed with fright about getting home again. Tried again in ten minutes, and everything came back on.

The second time was today. Nothing at all worked, although a few minutes before all was fine. But my son-in-law and I had been working on the car, and I concluded that it thought it was being stolen and had immobilised itself.

With a computer I would have done a hard reset, so we disconnected the battery for a few minutes, then connected up again. Everything was back!

There is nothing wrong with battery, alternator or anything else much. I think it is a software problem.

But what di I know? ???