DTC U0418-81: Invalid Data Received from Brake System Control Module Invalid Serial Data Received [05/2023 - ]: Procedure
WARNING: This page is about a different car, the 2024 Lexus LC 500h. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK ELECTRONICALLY CONTROLLED BRAKE SYSTEM
- Check for DTCs.
Chassis > ABS/VSC/TRAC > Trouble Codes
HINT:
If U0418-81 is output in the pre-collision system, electronically controlled brake system DTCs may also have been output. Check the electronically controlled brake system first.
Result
Result Proceed to Electronically controlled brake system DTC are not output A Electronically controlled brake system DTC are output B
Result:
A
REPLACE FORWARD RECOGNITION CAMERA. Refer to REMOVAL [05/2023 - ]
Result:
B
GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2018 - ]
- Check for DTCs.