Peugeot 508 2011 Radio/CAN issues

[Fladdan]

Hi. As the title says my Peugeot 508 from 2011 has some issues with the radio and the little screen in the dashboard. I get among other fault code u1f0a 88. No communication with the canbus network. And the little screens just blinks. No buttons on the panel works. Parking assistant does work but does not beep.

Tries to switch the radio unit but with no luck. Disconnected battery over night and also did nothing. Remove the codes did nothing.
Checked 99% of all the fuses in the car and all are fine.

Where and how do I go forward with this?
I have diagbox.
VIN: VF3**************[VIN obfuscated, can be read by forum staff]
Best regards from a confused Swede.

[mickthemaverick]

The first thing I would do is check all the plugs in the BSi are clean and connected properly and any other plugs in the back of the dash, then clear the codes and run a new scan and post up the result of that scan

[Fladdan]

Where do I find the BSI? Big fuse box in the engine bay? I have checked the connections back of the radio unit and under both seats and all are without corrosion.

[mickthemaverick]

There are videos on Youtube showing where the BSi is, behind the glove box I think.

[Fladdan]

Thanks, will check it!

[Fladdan]

Nothing behind the glove box. Some small plastic box but doubt it's the bsi. Tried the bsi reset strategy but did nothing. Checked the fuses, contacts. Disassemble the panel, cleaned it, nothing. Checked the radio module, nothing.

Does anyone have the schematic for the can system with the radio module?

Also deleted codes via diagbox but no luck.