CAN bus misery - Fiat Doblo Family 1.9MultiJet type 223

[Siscoo]

Hello

Still have issues with CAN wiring. I try to physically locate the bad connection/connector/wire.
If you have useful pinout for Bosch EDC16c39 CF4 ECU and/or Marelli MY03 bodycomp thats gonna be great!
I`ve got a post connection with this: http://www.fiatforum.com/doblo/423207-c ... isery.html

Yani, if I connect to bodycomp with MultiEcuScan v1.7 registered +ELM 1.3, its using the K-line only?

The adaptor is good, working with other cars too.
Problem is, I can`t see engine & electric steering in the active/configured nodes (not worried about electric steering).
For me CAN bus error (see pics).

As I seen the K-line is physically connected matching to the e-learn (Fiat service man. from fiatforum) pinouts, but the CAN lines are not exist!!!
I seen other twisted pairs, i will try to trace them.
If I`m right, the engine wiring loom start from radio->dash->bodycomp then D4A coupling in engine bay->ECU(?) It is right? Should I see 120Ohm if I check the CAN wires?

Thanks for reading & for the possibly help.
Have a nice day