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Home >> Lexus >> 2018 >> RC 350 Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Pre-Collision System - Diagnostic Codes (2 Of 2) & Circuit Tests >> Pre-Collision System >> DTC U1306-51: Software Incompatibility with Power Steering Control Module Rear Not Programmed; DTC U1306-57: Software Incompatibility with Power Steering Control Module Rear Invalid / Incompatible Software Component [10/2022 - ] >> Description
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DTC U1306-51: Software Incompatibility with Power Steering Control Module Rear Not Programmed; DTC U1306-57: Software Incompatibility with Power Steering Control Module Rear Invalid / Incompatible Software Component [10/2022 - ]: Description

The forward recognition camera receives the steering sensor vehicle specification information from the DRS ECU (rear steering control ECU) via a CAN communication line.

When the forward recognition camera cannot confirm the vehicle information from the steering sensor vehicle specification information sent from the DRS ECU (rear steering control ECU), the forward recognition camera stores DTC U1306-51.

When the value of steering sensor vehicle specification information sent from the DRS ECU (rear steering control ECU) does not match the value stored in the forward recognition camera, the forward recognition camera stores DTC U1306-57.

DTC No. Detection Item DTC Detection Condition Trouble Area
U1306-51 Software Incompatibility with Power Steering Control Module Rear Not Programmed After 3 seconds have elapsed since the engine switch is turned to on (IG), information sent from the DRS ECU (rear steering control ECU) indicating whether the vehicle is equipped with DRS cannot be confirmed for 10 seconds or more.
  • Dynamic rear steering system
  • DRS ECU (rear steering control ECU)
U1306-57 Software Incompatibility with Power Steering Control Module Rear Invalid / Incompatible Software Component After 3 seconds have elapsed since the engine switch is turned to on (IG), the value of the information sent from the DRS ECU (rear steering control ECU) indicating whether the vehicle is equipped with DRS does not match the value stored in the forward recognition camera for 3 seconds or more.
  • Dynamic rear steering system
  • DRS ECU (rear steering control ECU)