C5 electric problem

[Arturs]

Hello. Pleace help. I have problem with electric. Not working hidraulic suspention, automatic lights, spidometer, engine temperature, cabin fen electric motor, seet heating, back glass heating, seet belt red light. On control panel is on STOP, ABS, hand brake, Service light. Showing imobilaiser fault, ABS fault, brake fault. Like that is not every time its coming then agan disapier. Citroen deeler, dont know where is a problem. The engine start, driving normal.
Citroen C5 weekend st car
2002
2.0i

[Hell Razor5543]

Sometimes a battery reset can clear down a lot af faults. From what I have read on the forum, the C5 is very sensitive about the electrical power. If the battery is on the way out it can cause a lot of (apparently unrelated) problems. I would suggest following the battery reset routine to see if that helps. I would also get the battery itself checked to see if it is up to the job.

This link covers the battery reset. It can take a couple of hours, but it is worth doing it properly;

http://www.frenchcarforum.co.uk/forum/v ... 11&t=40407" onclick="window.open(this.href);return false;

[Arturs]

I chek the battery whit tester and is ok. I read in forum, can be also BSM modul. I change use one. One month was ok and now again the same problem. Maby can by problem with generator, becauce I found bifore when come problem the head ligts geting dearker.

[Ben82]

Arturs, if you read my "Time for a new Battery?" thread, you'll find my battery appeared to check out fine, until one day it finally gave up, and was replaced.
You'll notice also near the end of the thread, that there was part of the negative clamp missing (also has a picture of it), that was often causing a bad ground connection. Mandrake also has a process in that thread for testing the alternator too, so you might want to check that.

[Arturs]

Ok, I do like that

[Arturs]

Hello again. I change a battery, I do every thing how its writen but its the same, not change anything. Maby have some another idea?

[Arturs]

I chek the groun cabels, is clean. Just in case I clean, no results.

[myglaren]

Nothing comes to mind at the moment but your experience of the headlighs dimming is a concern. May be related or may be a red herring.

[Ben82]

Does the car start fine each time? or does that have issues too?

[Arturs]

The car start every time, sometimes takes 3s to start, moustly start good.

[birstall]

Could a "dead spot" on the ignition switch cause this?
I had this issue on a Xantia, but it was only the blower motor and rear windscreen heater that didn't work. Can anyone clarify what happens on the C5 for a similar issue?