DTC U0046-87: Vehicle Communication Bus C - Missing message: 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: Do NOT install a new integrated suspension control module as this will NOT rectify the fault.

Using Jaguar Land Rover approved diagnostic equipment, check the snapshot data to determine the missing message source control module. Check the relevant control module for related DTCs and refer to the relevant DTC index
Refer to the appropriate system wiring diagrams and check the relevant control module (i.e. as indicated by the snapshot data) power and ground circuits for open circuit. Repair circuits as required, clear DTC and retest
Using Jaguar Land Rover approved diagnostic equipment, complete a CAN network integrity test. Refer to the appropriate system wiring diagrams and check the high speed CAN network (chassis) between the relevant control module (i.e. as indicated by the snapshot data) and the suspension control module