Eletrical Problem, BSI?

[Daz3nt]

Hi all, im new to this forum. I have a Citroen Berlingo this has been my fav van so far, the problem im getting is there are no lights on dashboard only oil light and airbag light. here is the story from start to finish.

Everything was fine until the battery light came on while i was driving, i disconnected the battery and done a visual check and found nothing, i then reconnected the battery and there was no lights on the dashboard and no badges etc, after a few minutes everything came back on but the battery light was still on.

the next day i removed the alternator and changed the brushes and reconnected everything and got the same fault again (nothing on the dash) but battery voltage was 14V. after about 3 hours everything came back and the battery light was off and charging at 14V. The next day it was really cold and had a bit of trouble starting the engine and took about 20 seconds of cranking to get it to start, but all the cranking drained the battery and the clocks went off again but this time never returned.

I tried a BSI reset but that did nothing, I took it to a repair garage and they plugged a computer in to it and reset it and everything came back to normal again, they drove it around the corner and the BS|I unit started smoking and the wipers where on continuous and all the clocks went off "AGAIN" .

Later that day I got it home with wipers on full, Removed the BSI unit and tried to start it, It started fine wipers where off and wouldnt work (obviously) after a bit of searching on google i found out the immobiliser is part of the ECU and nothing to do with the BSI because it was built before 2002. I found a second hand BSI unit and fitted that and still the clocks dont work. because the battery was flat i havent tried anything else.

Here is a list of things that didnt work when the clocks where off.

Speedometer, rev counter, fuel gauge, indicators worked but didnt make a clicking noise, time, distance, Heater plug light (didnt check plugs)

from what i can remember that was all. Thanks for reading all this and i look forward to some feedback,

Thanks
p.S it's a berlingo W REG

[horsedentist]

I may be wrong (according to the wife I always am) but I am pretty sure you need to program a new bsi unit for it to work.

[Daz3nt]

Even when it gives the same symptoms as the original BSI?

[Daz3nt]

BTW thanks for you reply, im glad some one has the patients to read the full story

[BX]

This usually caused by a stupid fault, a leak at the radio aerial. Water follows the co-ax down from the roof and drips off where the lead turns and rises again. The water goes into the bsi and the result is a burnt pcb in the BSI. A second hand one can be fitted but must have its memory wiped first to remove immobiliser and VIN information. This is done by wiping a ROM chip and cannot be done with the lexia(as far as I know). The BSI now thinks its new and can be customised to the vehicle with the lexia.
Warning to anyone with the original berlingo from about 00 on. Check the aerial lead and re route it away from the BSI or take some other precaution to drip proof the BSI. Yes by all means seal the aerial on the roof but what if it leaks again.
I know that all the above doesn't apply in this case but it may help someone else.
I don't know exactly what mus be done to the ones with the seperate immobiliser but make sure its dry>