Battery: Testing and Inspection

Quiescent Current Measurement
1. Disconnect the battery ground cable.

NOTE: The following quiescent current measurement does not apply to vehicles fitted with the Tracker system. If the vehicle is fitted with the tracker system the quiescent current may be up to 14 milliamps higher. If non-jaguar approved accessories are installed the following measurements may not apply.

2. Check the vehicle off-load battery voltage. If below 12.5 volts, install a fully charged slave battery for the tests and recharge the vehicle battery.
3. Connect a suitable ammeter to the battery with the negative test lead clip to the negative battery terminal, and the positive test lead clip to the battery negative lead.
4. Operate the key fob unlock button to disarm the vehicle security system.
- Switch the ignition to the RUN position for a 10 second duration.
- Switch the ignition to the OFF position. Remove the key.
- Close the vehicle doors and luggage compartment lid.

NOTE: Make sure that all electrical accessories are switched off.

5. Monitor the ammeter reading for 30 minutes.
6. After 30 minutes the quiescent current reading should be no greater than 30 milliamps.
7. Disconnect the ammeter. Reconnect the battery ground cable.