Car was running had done about 50miles customer turn it off, then it would not start again.
Fault codes found are
P0335 - engine speed sensor signal permanent
U2000 - remote contrelled wake up fault: reception of main wake up signal peranent fault
P1693 - controlled engine start and stop permanent fault
P1536 - stop lamp information / coherence permanent fault
We have changed the battery, checked out the brake pedel switch(as you have to press the brake to start the car), we have checked the fuses, also there is no power going to the small signal wire on the starter motor.
Every so often the windows radio and other things stop working.
Dash clocks do not always say the gearbox is not in N as this has a auto gearbox.
Many thanks for your help in advance.

try cycling through the gears we had this and took about 20mins to get it to start again .

We had one with this fault was the battery terminal replaced to push fit one with a clamp one.

You will need to do the bsi reset to get the gears back, can't remember the sequence but something like, wind down drivers window, turn off leave 3 minutes for bsi to shut down, disconnect battery put the two battery leads together to discharge caps, reconnect, reach in through window and turn on side lights to wake bsi, enter vehicle press brake and turn on ignition, and wait 3 mins the autobox should clunk as it goes through its gears and the display come back on and start.

Steve

Fitted a new starter motor triger wire.