DTC C101A-81: Vacuum Pressure Sensor - Invalid Serial Data Received: 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.

NOTE: A single occurrence of this DTC could be due to RF interference external to the vehicle. Clear the DTCs and retest. If the fault persists continue with the test steps below

Refer to the appropriate system wiring diagrams and check the vacuum pressure sensor circuits for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuit 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
Using the Jaguar Land Rover Approved Diagnostic Equipment, clear the DTC and retest. If the fault persists, check and install a new anti-lock brake system control module as required