BLIND SPOT MONITOR SYSTEM Buzzer does not Sound

WIRING DIAGRAM

A003P37E84

CAUTION / NOTICE / HINT

Note


  • When checking for DTCs, make sure that the blind spot monitor system is turned on.

  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. CHECK RCTA BUZZER (BLIND SPOT MONITOR BUZZER)


    1. Check that the RCTA buzzer (blind pot monitor buzzer) sounds when the initial check is performed.

      Click here

      OK
      RCTA Buzzer sounds
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE BLIND SPOT MONITOR SENSOR RH Click here

    NG

  2. CHECK DTC


    1. Turn the power switch off.

    2. Turn the power switch on (IG).

    3. Recheck for DTCs and check if the same DTC is output again.


      Body Electrical > Blind Spot Monitor Slave > Trouble Codes
      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    NG

    GO TO DTC CHART Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (RCTA BUZZER - BLIND SPOT MONITOR SENSOR RH)


    1. Disconnect the N52*1 or N53*2 RCTA buzzer (blind spot monitor buzzer) connector.


      • *1: for LHD

      • *2: for RHD

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage (for LHD)
      Tester Connection Switch Condition Specified Condition
      N52-1 (BZP) - Body ground Power switch on (IG) 11 to 14 V
      N52-2 (BZN) - Body ground Below 1 V
      N52-2 (BZN) - N52-1 (BZP) Below 1 V
      Standard Voltage (for RHD)
      Tester Connection Switch Condition Specified Condition
      N53-1 (BZP) - Body ground Power switch on (IG) 11 to 14 V
      N53-2 (BZN) - Body ground Below 1 V
      N53-2 (BZN) - N53-1 (BZP) Below 1 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (RCTA BUZZER - BLIND SPOT MONITOR SENSOR RH AND AUXILIARY BATTERY)


    1. Disconnect the N52*1 or N53*2 RCTA buzzer (blind spot monitor buzzer) connector.


      • *1: for LHD

      • *2: for RHD

    2. Disconnect the N51 blind spot monitor sensor RH connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (for LHD)
      Tester Connection Condition Specified Condition
      N52-2 (BZN) - N51-3 (BUZ) Always Below 1 Ω
      N52-2 (BZN) or N51-3 (BUZ) - Body ground Always 10 kΩ or higher
      Standard Resistance (for RHD)
      Tester Connection Condition Specified Condition
      N53-2 (BZN) - N51-3 (BUZ) Always Below 1 Ω
      N53-2 (BZN) or N51-3 (BUZ) - Body ground Always 10 kΩ or higher

    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage (LHD)
      Tester Connection Switch Condition Specified Condition
      N52-2 (BZN) or N51-3 (BUZ) - Body ground Power switch on (IG) Below 1 V
      N52-1 (BZP) - Body ground Power switch on (IG) 11 to 14 V
      N52-1 (BZP) - Body ground Power switch off Below 1 V
      Standard Voltage (for RHD)
      Tester Connection Switch Condition Specified Condition
      N53-2 (BZN) or N51-3 (BUZ) - Body ground Power switch on (IG) Below 1 V
      N53-1 (BZP) - Body ground Power switch on (IG) 11 to 14 V
      N53-1 (BZP) - Body ground Power switch off Below 1 V
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE BLIND SPOT MONITOR BUZZER Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR