Citroen C5 Aircross 1.5 BlueHDI Wiper Wiring Diagram Needed

[kelleci]

Hi,
Here is my story. My car was diagnosed with EGR heat exchanger leak problem, EGR heat exchanger is changed by a local freelance mechanic with a new original part then my problems started.

My front wiper and wiper water pump is not working after this repair. Back window wiper is working fine. I don't know if did cause this problem or not. They of course claiming it is not theit fault

So I checked marked relays and fuses they all seems fine.

I measured big white fuse, small green fuse and gray big relay they all seemed fine.

Then i suspected if wiper motor may damaged so i removed it. Connected motor to bench power supply(+12V and GND as shown in image) and verified it works.

Then I measured wiper motor harness with multimeter.

Multimeter COM Negative probe is connected to battery negative while taking these measurements:

1st pin(Small pink wire): Wiper motor speed signal i believe. This measures +8.85V between battery negative post.
2nd pin: Not Connected
3rd pin(Green-Yellow wire): This should be switching to GND i believe but there is no connection at all.This measures infinite ohm between battery negative post. Measures 0V between positive battery post. Also measures 0V between 4th blue pin.
4th pin(Blue wire) Constant +12v supply i believe. This measures +12.35V between battery negative post.

As far as i understand that issue is GND 3rd pin is missing. I don't know where it goes(some kind of relay?Some kind of computer?) thats why i need wiring schematics for wiper circuit.
Also my wiper fluid pump is not working. I measured pump connector there is 0 Volts. I believe these systems are interconnected(maybe with a wiper ECU-Computer?) but i may be wrong. Back wiper works as normal.

In a nutshell i need wiper wiring diagram for 2020 Citroen C5 Aircross 1.5 BlueHDI if someone have. I need to troubleshoot this issue.

Thanks in advance.

[mickthemaverick]

I'm afraid your car is too new for my collection of diagrams but hopefully someone will be able to help. Good luck

[kelleci]

Hi,
Many thanks for reply.
I wonder if official "Service Box"(https://public.servicebox.peugeot.com/d ... Parametres?) 1 day subscription may have these diagrams? Do you have any idea?
Regards.

[mickthemaverick]

Yes I believe it will have, but unless you are desperate I'd give it at least this evening to see if a member who has access can help,

[kelleci]

Many many thanks for advices. Let's hope and see if someone helps.

[xantia_v6]

Hi,
Many thanks for reply.
I wonder if official "Service Box"(https://public.servicebox.peugeot.com/d ... Parametres?) 1 day subscription may have these diagrams? Do you have any idea?
Regards.

That would have worked a few years ago, but you need to create an account to get access. Stellantis will now only activate an account if you have official documents showing that you are a professional business in the field of vehicle repair. The documents required are different according to country, but in most European countries include a VAT registration certificate.

[kelleci]

@xantia_v6
Oh i see. Sadly i am not a professional business just a guy who wants to fix his car.
Then only option left is someone who have wiring diagrams.

According to my searchs on internet wiper wiring is connected to BSI in other models. Can anyone confirm it?
Here is C5 Aircross example BSI photo that i found on internet:

Regards.

Another update: Wiper fluid pump car harness side measures 0ohm. Pump harness side is 3 ohms. It seems pump car harness side is shorted. Checked each pin to car battery and negative posts it measures infinite ohms.