Peugeot 508 front wipers problem

[credoline]

Hi friends. I have next problem. Front wiper, only on driver side work all the time, on passenger side not work. On driver side work in slow mode and not in full deviation. And work after ignition off for one time. I guess wipers work in some protection mode, because of absence of communication with vehicle. When i make full diagnosis with OEM diag i have no communication with Trailer module, Auxiliary heater module and with Front right and front left wiper module (or master and slave, i cant remember names). All fuses in passenger compartment are okay, on driver side fuses location i do not have +12v at any on fuses, most of them are 3A, 5A and some of 10A (i did not pull them out). Under hood all fuses are okay. I do not have schematic diagram for this vehicle. I am interested, did some of this 4 modules have 2 x 2 CAN lines, like CAN H CAN L in and out and that module is in problem and because of him i do not have pass trough communication with other modules. And if anyone can tell where is Auxiliary heater module is located, and where is located Trailer module.
And the last, to not forget, i have complain in BSI and one more module on LIN line problem.
Or someone have the same propblem.
Thank you

[Cascais94]

electrical diagram here.

[rafal]

have a look inside of wiper motor for water demage............. check wiring or buy used wiper motor

[credoline]

I did. Passenger side motor is okay, checking all components. If i disconnect that motor and driver side motor stop to work, that mean that passenger and driver side motor have communication. Today i will open driver side motor to check what problem it have. I am found some video on YT where was problem in bad soldering inside. From time when they start to use lead free soldering problems are multiplied.

[credoline]

Today opened driver side motor and problem was there. Water inside, couple of via was broken, one 10nf capacitor, and one line from connector to circuit board was rotten. Everything repaired, cleaned and now only to test on vehicle. And its working. 4 hours job.