Jaguar Repair Problems? Ask a Jaguar Repairs Expert.
So right now the engine will not crank? Does it power up normally with the ignition ON and foot on the brake?
What do you mean by the ignition system keeps locking up?
Yes we first need to check the battery and cable connections. There are two parts for the security as there is the perimeter locking part and the ignition. We could have a problem with the key itself or the reader coil which is the part that goes around the ignition cylinder that reads the key. start the vehicle and lower the driver window. Lock the vehicle with the remote. Then reach in through the open window and open the driver door. The alarm should sound. Then if you place the key into the ignition and turn it on the alarm should stop. If not then unlock the door using the key in the door lock cylinder to disarm it. If it does not disarm the alarm in the ignition then the key or reader coil is the most likely problem.
As long as you can unlock the vehicle using the key in the driver door this will also disarm the security.
Ok then it can also be the security locking module located in the trunk under the trunk fuse box. Unfortunately without the Jag tool it will be difficult to diagnose.
In the trunk near the battery under the cover.
Let me know if you need anything else from me. The question is still open on my end until you give a positive rating.