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View Full Version : Citroen C4 1.6HDI 2006 BSI and BSM problems...



WinWoj
30th May, 2015, 04:53 PM
Hi mates. I have C4 1.6hdi, which has strange electrical problems.
First, when is wet whether windscreen wiper working by itself, not driven.. Also engine can stop after driving. Schematics shows that both engine powering and wipers are energised by BSM. But question is what first I should check, this module is flooded gum or silicone. Should I open it and scratch gum and mesure diodes and check pcb? When is sunny day problem not exist..

Second thing is lights, mirrors and power windows... All signals from driver side door switch or steering wheel switch are recognozed by BSI (checked by DiagBox) but only driver window working. Mirror are driven only driver side, passenger not. Rear left fog lamp is damaged - is one of few faults, but in car is only one rear fog lamp (right) - wrong codding??

Some electrician opened BSI before, I found missing (I think) smd component, but I'm not sure.. Solder looks like something was placed there (see pictures). Maybe someone has such BSI opened and could see if there are empty place, or not? Will be greatfull.

http://www.digital-kaos.co.uk/forums/attachment.php?attachmentid=315827&stc=1http://www.digital-kaos.co.uk/forums/attachment.php?attachmentid=315828&stc=1http://www.digital-kaos.co.uk/forums/attachment.php?attachmentid=315829&stc=1http://www.digital-kaos.co.uk/forums/attachment.php?attachmentid=315830&stc=1http://www.digital-kaos.co.uk/forums/attachment.php?attachmentid=315831&stc=1

WinWoj
11th June, 2015, 09:51 PM
Hi. None can halp me??? As I checked before, eventual component is on ADC leg of mcu... Maybe is filter, maybe another stage... Who knows.. After assembly problem with wipers and car dead gone. I also cleaned PSF1 box under hood. But, when I coded by diagbox clima, door modules and few another things in BSI, then present new problem! Before display not waring, now, 2-4 minutes after engine run display shouts "Batery or charging system fault". Also switch on "SERVICE" in cluster... 14,5V present, after this indication, all electric load is switched off (clima, windows, mirrors...)... Please help me, is it possible to wrong coding BSI to assume such result with "Batery charging foult" and "SERVICE" indication..? It was my 1st use of diagbox...

PS: poles checked, cleaned, battery replaced, grund point cleaned, 14,5V present.

Regards,