Possible Causes

WARNING: This page is about a different car, the 2015 Jaguar XF, 2014 Jaguar XF, and 2013 Jaguar XF. However, it is still accessible from the selected car via links, so may be relevant.

The engine control module measured a signal voltage above a specified range but not necessarily a short circuit to power, gain too high
Mass air flow sensor connector is not correctly latched
Power feed to mass air flow sensor, open circuit
Mass air flow sensor circuit, short circuit to ground, short circuit to power, open circuit, high resistance
Mass air flow sensor failure