LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2017 >> GS 450h Base >> Repair and Diagnosis (Single Page) >> Restraints >> Restraints Control Systems >> Pre-Collision System (Diagnostic Codes & Circuit Tests) >> Pre-Collision System >> DTC B2085: Communication Error from Driving Support ECU to VSC ECU [09/2014 - 10/2015] >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC B2085: Communication Error from Driving Support ECU to VSC ECU [09/2014 - 10/2015]: Procedure

  1. CHECK FOR DTC (CAN COMMUNICATION SYSTEM) 
    1. Select "Bus Check" from the "System Select" (See page. Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2014 - 10/2015] ).
    2. Select "Communication Malfunction DTC" from the "Bus Check" screen, and then select "Enter".

      OK

      CAN communication system DTC is not output.

    Result:  NG

    NG 

    GO TO CAN COMMUNICATION SYSTEM 

    (See page. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] )

    Result:  OK

    OK 

    See step  2

  2. CHECK FOR DTC (PRE-COLLISION SYSTEM) 
    1. Clear the DTCs (See page. Refer to DTC CHECK / CLEAR [09/2014 - 10/2015] ).
    2. Check for DTCs (See page. Refer to DTC CHECK / CLEAR [09/2014 - 10/2015] ).

      OK

      DTC B2085 is not output.

    Result:  OK

    OK 

    USE SIMULATION METHOD TO CHECK 

    (See page. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] )

    Result:  NG

    NG 

    REPLACE SEAT BELT CONTROL ECU 

    (See page. Refer to REMOVAL [09/2014 - 10/2015] )