I have a 2009 1.6 TDCI that won't start.

It also won't connect to Forscan, which is odd, so must be a clue as to whats going on.

The immobiliser LED is giving me 1 and 6.

I think the PATS code of 1:6 and DTC code of U2510 (comms between PATS and PCM) means there is a fault in the canbus wiring.

I'm going to check for dry joints / cracked joints on the instrument cluster but this is a hard fault and not intermittent.

Also going to check correct resitance across Canbus on at the OBDII port.

No blown fuses.

I got the codes out via the built in dashboard display.

Anything else worth checking?