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 - ]: Description
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.
Forward recognition camera receives the variable gear ratio steering system information from the VGRS ECU (front steering control ECU) via CAN communication line.
If the forward recognition camera cannot store the variable gear ratio steering system information, DTC U0319-51 is stored.
If the variable gear ratio steering system information stored in the forward recognition camera is different from that stored in the VGRS ECU (front steering control ECU), DTC U0319-57 is stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
|---|---|---|---|---|
| U0319-51 | Software Incompatibility with Steering Effort Control Module Not Programmed | With 3 seconds elapsed after the power switch is on (IG), the vehicle information sent from the VGRS ECU (front steering control ECU) remains undefined for 10 seconds or more. |
|
Pre-Collision System |
| U0319-57 | Software Incompatibility with Steering Effort Control Module Invalid/Incompatible Software Component | With 3 seconds elapsed after the power switch is on (IG), the stored value for the vehicle information in the forward recognition camera does not match the received value from the VGRS ECU (front steering control ECU) for 3 seconds or more. |
|
Pre-Collision System |