Parked the car & when I come back out to it, the doors are all deadlocked and the remote wont work.
Use the key to unlock the drivers door, turn on the ignition all lights go out, but green key light is flashing. Engine cranks but wont start.
I've had a few flat battery issues in the last year or so and put in a new batter a few weeks a go.

New battery in the key fob & and I get a red light on when I operate it.

No fault code in the ECU

Any ideas?

 

Your car thinks you are a thief.