hi just would like you to check your obd2 port flap under the dash to the right of the steering wheel, had an issue where it can stop the odd things working for no reason, the flap has a little jumper in it that makes contact when closed. just a thought apart from that have you check to see if you have 12v and meter out to see if the earth is 100%. V8 facelift Range Rover Autobiography 22" wheels.
1976 Harley Davidson Iron Head Sportster