DTC U0046-87: Vehicle Communication Bus C - Missing message: Action

NOTE: DO NOT replace the adaptive cruise control module for this DTC

Using the Jaguar Land Rover approved diagnostic equipment, check the snapshot data to determine the missing message source control module. Refer to the electrical circuit diagrams and check the relevant control module power and ground circuits for open circuit, high resistance. Repair the wiring harness as necessary
Refer to the electrical circuit diagrams and check the high speed CAN bus (chassis) circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary
Using the 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 Diagnostic Trouble Code(s) and refer to the relevant DTC index