Jaguar Repair Problems? Ask a Jaguar Repairs Expert.
I assume that the engine is cranking normally but not starting? Any recent work done to the vehicle?
Ok the ECM can be the problem. I would first recommend we check the ground on the alternator bracket to make sure it is clean and secure. We also should make sure we have battery voltage to the coils with the ignition on. Let me know. The problem is if a new or used ECM is installed the security system must be programmed.
Ok look closely at the wire harness to make sure there are no signs of damage . For some reason the ECM is cutting off the ignition. Did you have the problem before the ECM was repaired.