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
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 FOR DTC (VARIABLE GEAR RATIO STEERING SYSTEM)
- 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 - ]
- Check for DTCs.