P003C-77: A Camshaft Profile Control Performance/Stuck Off (Bank 1) - Commanded position not reachable: Action

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.

Refer to the relevant sections of the service information and check the oil pressure is within specification. Check oil supply to camshaft is correct and that oil gallery is free from debris
Check engine control module for additional DTCs and refer to relevant DTC index. Rectify these first
Refer to the applicable SYSTEM WIRING DIAGRAM(S) and check camshaft profile switching solenoid circuit for short circuit to ground, short circuit to power, open circuit, high resistance
Check and install new camshaft profile switching solenoid as required
Using the manufacturer approved diagnostic system clear all stored DTCs using the `Diagnosis Menu' tab and retest