DTC U0319-51: Software Incompatibility with Steering Effort Control Module Not Programmed; DTC U0319-57: Software Incompatibility with Steering Effort Control Module Invalid/Incompatible Software Component [05/2023 - ]: Procedure

1. Check for DTCs.

   Chassis > VGRS > Trouble Codes 

   HINT: 

   If the pre-collision system outputs U0319-51 or U0319-57, variable gear ratio steering system DTCs may also have been output. Check the variable gear ratio steering system first.

   Result

   Result	Proceed to
   DTC are not output	A
   DTC is output (Variable Gear Ratio Steering System)	B

Result: 

A 

REPLACE VGRS ECU (FRONT STEERING CONTROL ECU). Refer to  REMOVAL [05/2023 - ] 

Result: 

B 

GO TO VARIABLE GEAR RATIO STEERING SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [01/2017 - ]