U0400-81: Invalid data received - Invalid serial data received: Action
- Using the Jaguar Land Rover approved diagnostic equipment, inspect the Anti-lock Brake System Control Module (ABS) is transmitting the VehicleSpeed QF message with a valid value. Inspect the ABS Diagnostic trouble Codes and refer to the ABS Diagnostic Trouble Code index. Repair as necessary
- Using the Jaguar Land Rover approved diagnostic equipment, reset the AAM (11 01)
- Using the Jaguar Land Rover approved diagnostic equipment, clear the Diagnostic Trouble Codes (14 FF FF FF) and retest
- Using the Jaguar Land Rover approved diagnostic equipment, read the Snapshot Data Identifier 19 (SID19) Diagnostic Trouble Codes (19 02 08). If the Diagnostic Trouble Code persists raise a Technical Assistance (TA)