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Home >> Lexus >> 2020 >> LS 500h AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Panoramic View Monitor System (W/O Advanced Park) - Diagnostic Codes (2 Of 2) & Symptom Tests >> PANORAMIC VIEW MONITOR SYSTEM (w/o Advanced Park) >> DTC C2A5D: BSM Buzzer Malfunction [10/2017 - 10/2020] >> Procedure

DTC C2A5D: BSM Buzzer Malfunction [10/2017 - 10/2020]: Procedure

  1. READ VALUE USING TECHSTREAM (BLIND SPOT MONITOR SENSOR LH STATUS) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Blind Spot Monitor Slave / Data List.
    5. Read the Data List according to the display on the Techstream.

      Body Electrical > Blind Spot Monitor Slave > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Buzzer Connection Status of the buzzer connection Valid or Invalid Valid: Buzzer connection is valid
      Invalid: Buzzer connection is invalid
      -
      Slave Side RCTA Function Switches the RCTA function on and off OFF or ON OFF: RCTA function off
      ON: RCTA function on
      -

      Body Electrical > Blind Spot Monitor Slave > Data List 

      Tester Display
      Buzzer Connection
      Slave Side RCTA Function

      Result

      Result Proceed to
      "Valid" and "ON" is displayed for all items. A
      "Invalid" or "OFF" is displayed. B

    Result: 

    GO TO BLIND SPOT MONITOR SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2017 - 10/2023] 

    Result: 

    See step  2

  2. CHECK FOR DTC 
    1. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [10/2017 - 10/2020]

      Chassis > Parking Assist Camera > Clear DTCs 

    2. Recheck for DTCs and check that no DTCs are output.

      Refer to DTC CHECK / CLEAR [10/2017 - 10/2020]

      Chassis > Parking Assist Camera > Trouble Codes 

      Result

      Result Proceed to
      DTC C2A5D is not output A
      DTC C2A5D is output B

    Result: 

    REPLACE REAR TELEVISION CAMERA ASSEMBLY. Refer to  REMOVAL [10/2017 - 10/2020] 

    Result: 

    See step  3

  3. CHECK FOR DTC (BLIND SPOT MONITOR SYSTEM [C1ABE]) 
    1. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [10/2017 - 10/2023]

      Body Electrical > Blind Spot Monitor Slave > Clear DTCs 

    2. Recheck for DTCs and check that no DTCs are output.

      Refer to DTC CHECK / CLEAR [10/2017 - 10/2023]

      Body Electrical > Blind Spot Monitor Slave > Trouble Codes 

      Result

      Result Proceed to
      DTC C1ABE is not output A
      DTC C1ABE is output B

    Result: 

    GO TO PARKING SUPPORT ALERT SYSTEM (PROBLEM SYMPTOMS TABLE). Refer to  PROBLEM SYMPTOMS TABLE [10/2017 - 10/2020] 

    Result: 

    GO TO DIAGNOSTIC TROUBLE CODE CHART (C1ABE). Refer to  DTC C1ABE: Short to GND or Open in Buzzer [10/2017 - 10/2023]