DTC U0402-81: Invalid Data Received From TCM - Invalid serial data received: Action
NOTE:
- This is not a vehicle harness issue or anti-lock brake system control module issue. The data source module, in this case the Transmission Control Module has sent information which it has marked as Invalid
- In the case of battery electric vehicles, all transmission control module network handling is performed by the powertrain control module
- Do NOT replace the anti-lock brake system control module for this DTC only
- Using the Jaguar Land Rover approved diagnostic equipment, check the transmission control module for related Diagnostic Trouble Code(s) and refer to the relevant DTC index
- Using the Jaguar Land Rover approved diagnostic equipment, clear the Diagnostic Trouble Code(s) and perform routine - On Demand Self Test (0x0202) for the transmission control module