DTC U0400-81: Invalid Data Received - Invalid serial data received: Action
NOTE:
- DO NOT replace the driver assistance domain controller for this DTC alone
- If snapshot data D020 indicates a missing signal from the IPMA, check the anti-lock braking system control module and restraints control module for related Diagnostic Trouble Code(s) first
- Using the Jaguar Land Rover approved diagnostic equipment, inspect the status bits of the DTC on the DTC information page. If 'Confirmed DTC' status bit is not set ('NO' on display) ignore this DTC
- Using the Jaguar Land Rover approved diagnostic equipment, check the snapshot data D020 to determine the invalid data source control module. Check the relevant control module for related Diagnostic Trouble Code(s) and refer to the relevant DTC index, rectify faults and retest
- Modules that could lead to this DTC
- Anti-Lock Brake System Control Module (ABS)
- Body Control Module (BCM)
- Cruise Control Module (CCM)
- Chassis Control Module (CHCM)
- Gateway Module (GWM)
- Image Processing Module A (IPMA)
- Powertrain Control Module (PCM)
- Power Steering Control Module (PSCM)
- Restraints Control Module (RCM)
- Steering Angle Sensor Module (SASM)
- Side Obstacle Detection Control Module - Left/Right (SODL/SODR)
- Transfer Case Control Module (TCCM)
- Transmission Control Module (TCM)
- Using the Jaguar Land Rover approved diagnostic equipment, clear the Diagnostic Trouble Code(s) cycle the ignition and perform routine - On Demand Self Test (0x0202) and retest
- If the fault persists contact Jaguar Land Rover technical assistance