DTC U0064-87: Vehicle Communication Bus E - Missing message: Action

NOTE: Do NOT install a new HVAC control module as this will NOT rectify the fault.

Using the Jaguar Land Rover approved diagnostic equipment, check the snapshot data to determine the invalid data source control module. Check the relevant control module for related Diagnostic Trouble Code(s) and refer to the relevant DTC index
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 network (chassis) between the relevant control module (for example as indicated by the snapshot data) and the HVAC control module