Help at stupid Dane - Grand Picasso Wiring / CANbus

[CitroenPassion]

Yes.. I know I've been stupid..
Was in the process of installing a webasto heater in our Grand Picasso 1.6 hdi from 2014
Missed a lead-through for the cables. - Drilled a little too close to the wiring harness
So I managed to drill both CANbus and regular wires over.
I've managed to get most of it done.
But there are these errors: C156C 90 - C1560 00 - and C1561 00 the last one as a permanent error.
So there is still a wire / CANbus that is defective - I just can't find it. I've spent 50 hours now :-/
Can anyone help me with a wiring diagram? Preferably with explanations of what the different things are.
Maybe some good advice?
The vehicle identification number is: VF7**************[VIN obfuscated, can be read by forum staff]
Many kind regards
Lasse - From Denmark

[mickthemaverick]

Unfortunately I only have access to wiring diagrams for vehicles up to 2012 but if you are able to get the correct diagram from another member you will find the guide to the diagrams useful. It can be found at:

viewtopic.php?p=782862#p782862

[CitroenPassion]

Yes, I hope someone else can and will help me.
Great with the guide to the diagrams.
Very helpful! Thanks a lot Mickthemaverick