U0427-51: Invalid Data Received From Vehicle Security Control Module - Not programmed: Action

NOTE: No repair actions relating to the Transmission or Transmission Control Module will rectify this fault

Prioritized steps to perform:
Refer to the electrical circuit diagrams and check the FlexRay bus circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary
Refer to the electrical circuit diagrams and check the body control module power and ground circuits for open circuit, high resistance. Repair the wiring harness as necessary
Using the Jaguar Land Rover approved diagnostic equipment, check the body control module for related DTCs and refer to the relevant DTC index.
Refer to the electrical circuit diagrams and check the Gateway control module power and ground circuits for open circuit, high resistance. Repair the wiring harness as necessary.
Using the Jaguar Land Rover approved diagnostic equipment, check the Gateway control module for related DTCs and refer to the relevant DTC index