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Home >> Lexus >> 2017 >> CT 200h Base >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System - Diagnostic Codes & Circuit Tests >> Pre-Collision System >> DTC B2090: Driving Support System Malfunction [08/2014 - ] >> Procedure

DTC B2090: Driving Support System Malfunction [08/2014 - ]: Procedure

  1. CHECK DTC OUTPUT (DYNAMIC RADAR CRUISE CONTROL SYSTEM) 
    1. Check DTCs for the dynamic radar cruise control system (Refer to DTC Check / Clear [08/2014 - ] ).

      OK

      Dynamic radar cruise control system DTCs are not output.

    Result:  NG

    NG 

    GO TO DYNAMIC RADAR CRUISE CONTROL SYSTEM 

    (Refer to Diagnostic Trouble Code Chart [08/2014 - ] )

    Result:  OK

    OK 

    Refer to  2

  2. CHECK DTC OUTPUT (DRIVING SUPPORT ECU (PRE-COLLISION 2)) 
    1. Using the Techstream, enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes.
    2. Check for DTCs (Refer to DTC Check / Clear [08/2014 - ] ).

      OK

      "Pre-Collision 2" DTC is not output.

    Result:  NG

    NG 

    GO TO DIAGNOSTIC TROUBLE CODE CHART 

    (Refer to Diagnostic Trouble Code Chart [08/2014 - ] )

    Result:  OK

    OK 

    Refer to  3

  3. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM) 
    1. Using the Techstream, enter the following menus: Body Electrical / Pre-Collision / Trouble Codes.
    2. Clear the DTCs (Refer to DTC Check / Clear [08/2014 - ] ).
    3. Recheck for DTCs.

      OK

      DTC B2090 is not output.

    Result:  OK

    OK 

    END 

    Result:  NG

    NG 

    REPLACE SEAT BELT CONTROL ECU 

    (Refer to Removal [08/2014 - ] )