July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!
DTC U0001-88: High Speed CAN Communication Bus - Bus off: Action
Using the Jaguar Land Rover approved diagnostic equipment, perform a CAN network integrity test. Refer to the applicable SYSTEM WIRING DIAGRAMS and check the high speed CAN bus (comfort) circuit for short circuit to ground, short circuit to power, open circuit, high resistance