In Jaguar S-Type you can enter instrument cluster hidden menu. Press and hold TRIP button on the left stalk and turn the ignition on. Release the button when you see „TEST MODE” on the display. Use TRIP button to navigate through tests and diagnostic data. In hidden menu you can perform needles sweep, indicators and display test, read DTC fault codes, access live data from vehicle speed, engine RPMs, temperature from various sensors, battery voltage, fuel flow and much more diagnostic data.