Jaguar Repair Problems? Ask a Jaguar Repairs Expert.
Does the security light on the console flash very rapidly when you turn the ignition on? Will the shifter release from park with the ignition on and foot on the brake?
Ok check to make sue the inertia switch has not tripped. To reset it just depress the top of it as it is located behind the passenger side kick panel. There should be a hole in the panel where you can put your finger through to depress the top. We then need to check power to all fuses.
OK not sure about the start button since it is not factory. With the ignition ON see if the throttle motor is buzzing/whinning as this tells us the ECM is functioning. We should check all the fuses with a digital multimeter checking for battery voltage to both sides of the fuse which will also test the switched system power relays. Also see if the P is lite up on the shifter.
Ok those fuses are the windshield heater and headlamps so they will not have power. Sounds like we may have a network problem since the shifter is stuck in park and the vehicle will not crank. FIRST DISCONNECT JUST THE NEGATIVE TERMINAL for about 30 minutes to see if it will reset. Then with your meter go to the data link connector and set your meter to resistance. With the ignition off and battery disconnected place on elead of your meter to pin 6 and the other meter lead to pin 14. See what your resistance reads.
Sounds like we may have a problem with the ECM. We definitely should read resistance. 60 ohms on pin 6 to pin 14. Let me know.
Yes. I am on the road right now but Google OBD II connector for a pin diagram.
OK the resistance is good. Check the ECM connector in the passenger rear of the engine compartment and check the ground next to the power steering reservoir. The ECM may have a security torx bolt securing it. Then check the large square connector next to the coolant reservoir to make sure the 10mm bolt is tight and the connector is not corroded.
Double check all those fuses. See if the throttle is buzzing with the ignition ON. COuld be ECM relay or diode since it is not communicating.