We're collecting dead cars at the moment! AA brought this one in yesterday. The customer called them out as the car was loosing power and stalling but he managed to get it home. AA man looks at car and it won't start at all, just flashes engine management light. He's obviously spent some time on it as well!
Code P1503 immobiliser wrong signal recorded in engine ECU. Live data shows immobiliser signal recieved but immobiliser active.
Immobiliser has no fault codes stored, key 2 used and recognised, engine request received and immobiliser signal received.
I've removed the engine ECU and check connections etc. All looks good. Don't know where to go from here!