2006 LR3 wont start. 1 click only, no crank.
Here are the fault codes that it's showing:

P0851 - Park / Neutral switch input circuit low
&
U0101 - Lost communication with TCM

any else pulled these codes and truck wouldn't start?
still hoping to fix with minimal labor.

new brake switch, all Land Rover lights, new battery...
Thanks.

 

The wiring diagrams show a cable from Transmission module and starter realy headed to the P/N terminal of the ECU. The other side of the starter relay coil goes to another spot on the ECU. Believe it is green with orange color wire for the first cable, and blue with red foir second cable. Page 30 of 241 in the wiring diagrams. Free link to downloads in my signature.

 

hi, did you end up fixing the issue? i have exact same problem now. thanks