Jaguar Repair Problems? Ask a Jaguar Repairs Expert.
I'm assuming that the battery you've replaced is the one in the key fob?
so you must have issues with central locking or the immobiliser?
in which case its worth trying resetting the ECU by disconnecting the battery cables and clamping them together for 10 mins. Remove both battery leads from the battery then use a nut and bolt or G-clamp to hold both battery lead terminals together.
This discharges any capacitors / memory within the ECU and around the car so ensures all memory settings are wiped clear - back to the factory default.
This will reset all the systems on the car and you may need the radio security code to get it going again, and ensure that the keys are in your hand when you re-connect the battery as the car may lock and turn on the alarm
if this doesn't help then sorry to say you'll need to get the car to a Jaguar specialist / dealer as only they carry the top level kit to reset the vehicle keys and match them back to the security module
do you still need help?
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