Hi all, first post on the first forum I have joined so here goes, Jaguar X400 2.0d 2007 brought to me from another garage as a non starter. I have very intermittent coms with ECU and GEM but all others connect ok, have checked resistance at the DLC and at varoius point around the system and have the expected 60 ohms also continuity between modules and the DLC with no problems showing. I have U1900 and B2141 codes in the instrument cluster also relating to CAN fault. My main focus at the moment is to restore consistent coms with the modules then obviously the non start which may be hand in hand. Scoping the system at varoius points brings very similar waveforms to the (very poor) pictures of the laptop screen. Any futher testing strategy/ advise will be a great help.