BLIND SPOT MONITOR SYSTEM, Diagnostic DTC:C1ABE

DTC Code DTC Name
C1ABE Short to GND or Open in Buzzer

DESCRIPTION


DTC No. Detection Item DTC Detection Condition Trouble Area
C1ABE Short to GND or Open in Buzzer

    Both of the following conditions are met:

  • The blind spot monitor system is on

  • The blind spot monitor sensor is not sounding the buzzer but the buzzer receives voltage below a specified level for a specified period of time.

  • Blind spot monitor sensor RH

  • Rear crossing traffic alert buzzer (blind spot monitor buzzer)

  • Wire harness or connector

WIRING DIAGRAM

A0027F7E75

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 procedure.

PROCEDURE


  1. CHECK DTC


    1. Turn the ignition switch off.

    2. Turn the ignition switch to ON.

    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

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  2. CHECK HARNESS AND CONNECTOR (REAR CROSSING TRAFFIC ALERT BUZZER - BATTERY AND BLIND SPOT MONITOR SENSOR RH)


    1. Disconnect the M44 rear crossing traffic alert buzzer (blind spot monitor buzzer) connector.

    2. Disconnect the L23 blind spot monitor sensor RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      M44-2 (BZN) - L23-3 (BUZ) Always Below 1 Ω
      M44-2 (BZN) - Body ground Always 10 kΩ or higher

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      M44-1 (BZP) - Body ground Ignition Switch ON 11 to 14 V
      M44-1 (BZP) - Body ground Ignition Switch off Below 1 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. REPLACE REAR CROSSING TRAFFIC ALERT BUZZER (BLIND SPOT MONITOR BUZZER)


    1. Replace the rear crossing traffic alert buzzer (blind spot monitor buzzer).

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  4. CHECK DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Blind Spot Monitor Slave > Clear DTCs

    2. 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

    OK

    END

    NG

    REPLACE BLIND SPOT MONITOR SENSOR RH Click here