Hello fellow forklifters!

I have got a problem with a Linde H50D-01, H2X394B01818 (2011).
It indicates the error D160, communication error with the Linde particle filter system.

1. I can´t connect to it with my service computer and regeneration not possible, Fuses and voltage feed to box ok.
2. I have controlled the wire harness to the specified unit and opened it up for cable breakage-control but none found. CAN-bus included.
3. I replaced the particle filter control unit, but to no effect.

Might still be a CAN-bus fault towards the display since it is a displaycode?

Anyone got any more ideas? Help much appreciated!