BLIND SPOT MONITOR SYSTEM, Diagnostic DTC:C1ABD, C1ABE

DTC Code DTC Name
C1ABD Short to +B in Buzzer
C1ABE Short to GND or Open in Buzzer

DESCRIPTION


DTC No. DTC Detection Condition Trouble Area
C1ABD

    When either of the following conditions is met:

  • The blind spot monitor main switch (warning canceling switch assembly) is on with the ignition switch ON.

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

  • Blind spot monitor sensor LH

  • RCTA buzzer (blind spot monitor buzzer)

  • Wire harness or connector
C1ABE

    When either of the following conditions is met:

  • The blind spot monitor main switch (warning canceling switch assembly) is on with the ignition switch ON.

  • The current flowing to the buzzer is below a specified value when buzzer operation voltage is being sent to the buzzer.

  • Blind spot monitor sensor LH

  • RCTA buzzer (blind spot monitor buzzer)

  • Wire harness or connector

WIRING DIAGRAM

B000L2LE18

INSPECTION PROCEDURE

Note


  • When checking for DTCs, make sure that the blind spot monitor main switch (warning canceling switch assembly) is on.

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

PROCEDURE


  1. CHECK DTC


    1. Clear the DTCs Click here.

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

      OK
      No DTCs are output.

    NG

    CHECK HARNESS AND CONNECTOR (BATTERY, BLIND SPOT MONITOR SENSOR LH - RCTA BUZZER (BLIND SPOT MONITOR BUZZER)) Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  2. CHECK HARNESS AND CONNECTOR (BATTERY, BLIND SPOT MONITOR SENSOR LH - RCTA BUZZER (BLIND SPOT MONITOR BUZZER))


    1. Disconnect the T17 blind spot monitor sensor LH connector.

    2. Disconnect the N42 RCTA buzzer (blind spot monitor buzzer) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N42-2 (BZN) - T17-3 (BUZ) Always Below 1 Ω
      N42-2 (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
      N42-1 (BZP) - Body ground Ignition switch ON 11 to 14 V
      N42-1 (BZP) - Body ground Ignition switch off Below 1 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. REPLACE RCTA BUZZER (BLIND SPOT MONITOR BUZZER)


    1. Replace the RCTA buzzer (blind spot monitor buzzer) with a new or known good one Click here.


    NEXT

  4. CHECK DTC


    1. Clear the DTCs Click here.

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

      OK
      No DTCs are output.

    NG

    REPLACE BLIND SPOT MONITOR SENSOR LH Click here

    OK

    END (RCTA BUZZER (BLIND SPOT MONITOR BUZZER) WAS DEFECTIVE)