DTC U0046-88: Vehicle Communication Bus C - Bus off: Action

WARNING: This page is about a different car, the 2023 Jaguar F-Pace and 2022 Jaguar F-Pace. However, it is still accessible from the selected car via links, so may be relevant.

Refer to the electrical circuit diagrams and check the power and ground connections to the module
Using the Jaguar Land Rover approved diagnostic equipment, complete a CAN network integrity test. Refer to the electrical circuit diagrams and check the high speed CAN bus (chassis) for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuits as required, clear the DTC and retest