DTC U0418-81: Invalid Data Received from Brake System Control Module Invalid Serial Data Received [08/2020 - ]: Procedure

1. Using the Techstream, check for vehicle stability control system DTCs.

   HINT: 

   If DTC U0418-81 is output by the pre-collision system, perform troubleshooting for the vehicle stability control system.

   Chassis > ABS/VSC/TRAC/EPB > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output	A
   DTCs are output	B

Result: 

A 

REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY. Refer to  REMOVAL [08/2020 - ] 

Result: 

B 

GO TO VEHICLE STABILITY CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [02/2017 - ]