DTC U0001-88: High Speed CAN Communication Bus - Bus off: Action

NOTE: Warning Indicator is not directly controlled by the steering angle sensor module. The steering angle sensor module only stops sending valid information

Using the Jaguar Land Rover Approved Diagnostic Equipment, perform a CAN network integrity test. Refer to the appropriate system wiring diagrams and check the high speed CAN bus (chassis) circuit for short circuit to ground, short circuit to power, open circuit, high resistance