Citroen c5 2011 wiper master gets its configuration deleted.

[Sweden]

Hi.
My first reply/post on the forum.

Helping a friend with his 2011 c5 and it has no wipers at all and the code is 0f1A (No lin com between motors) has checked both sides with picoscope and all signals are there.

The strange part is the scanner side of the story, i has an icarsoft cs ultra with topology and when i scanned it displays only 1 motor, cant remember the name for the module MOTEV maybe?, looked at a youtubeclip with lexia and there it shows 2 motors, (maybe a clue or a scanner issue).

However no codes in the wiper module but 01fA in the bsi.
When i go in the wipermotor the (MOTEV?) and look at module information it only shows a bunch of fffffffffffff in every line... partnumber, softwere nr, etc and in configuration it dosent show what drive car is, it was 2 values i forgot the second...it shows NO VALUES on both.

I looked at another similar c5 and that showed numbers in every line in moduleinfo and it knew wich drive the bloody thing was, however it only shows 1 motor when i scanned it.
This made me feel good enugh to buy a used master for 150€ and plugged that in...went in the moduleinfo and it show less fff (but still f:s thoug) it displayed partnr etc but still didnt know wich drive the car was,
did a bsi reset (or tryed to) and guess what now it shows only ffffffffff in moduleinfo, square 1.

Were do the motor gets its value from?
Can i do a soft coding maybe?
Why are the info gets erased?
Iam going to a friends friend who had a shop with a updated onlineconnected launch...pro stuff.

Any ideas someone?

Mattias

[GiveMeABreak]

All I can tell you is that the motors operate in a Master / Slave configuration (lots of info in my various posts on this if you search the Forum), so the apparently faulty one is not always the culprit.

Main issue with these is water ingress to the PCB. Sometimes clearing the circuits up and resealing can resolve the issues, but be aware that the motors for Left Hand Drive and Right Hand Drive vehicles are NOT interchangeable.

[Sweden]

All I can tell you is that the motors operate in a Master / Slave configuration (lots of info in my various posts on this if you search the Forum), so the apparently faulty one is not always the culprit.

Main issue with these is water ingress to the PCB. Sometimes clearing the circuits up and resealing can resolve the issues, but be aware that the motors for Left Hand Drive and Right Hand Drive vehicles are NOT interchangeable.

Yes i think i have reed everething on the forum about the topic.
The issue is that the master gets wiped out, now i suspect the slave but it can be the bsi to.

And the slave is hard as a unicorn to found used here in sweden. 900€ at the dealer.