DTC C101A-86: Vacuum Pressure Sensor - Signal Invalid: Action
WARNING: This page is about a different car, the 2018 Jaguar XF, 2017 Jaguar XF, and 2016 Jaguar XF. However, it is still accessible from the selected car via links, so may be relevant.
- Check the brake vacuum system components and sensor connections for air leakages. Check the vacuum pump for correct operation. Repair as required
- Using the Jaguar Land Rover Approved Diagnostic Equipment, clear the DTC and retest. If the fault persists, check and install a new vacuum pressure sensor as required