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

Both of the following conditions are met:


  • The blind spot monitor main switch (steering pad switch assembly [multi-function switch]) is on with the engine switch on (IG).

  • 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 RH

  • RCTA buzzer (blind spot monitor buzzer)

  • Harness or connector
C1ABE

Both of the following conditions are met:


  • The blind spot monitor main switch (steering pad switch assembly [multi-function switch]) is on with the engine switch on (IG).

  • 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 RH

  • RCTA buzzer (blind spot monitor buzzer)

  • Harness or connector

WIRING DIAGRAM

B0018O2E06

CAUTION / NOTICE / HINT

Note


  • When checking for DTCs, make sure that the blind spot main switch (steering pad switch assembly [multi-function switch]) is on.

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

PROCEDURE


  1. CHECK FOR 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.

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

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


    1. Disconnect the L65 RCTA buzzer (blind spot monitor buzzer) connector.

    2. Disconnect the o1 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
      L65-2 (BZN) - o1-3 (BUZ) Always Below 1 Ω
      L65-2 (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 Switch Condition Specified Condition
      L65-1 (BZP) - Body ground Engine switch on (IG) 11 to 14 V
      L65-1 (BZP) - Body ground Engine 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) Click here.


    NEXT

  4. CHECK FOR 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.

    OK

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

    NG

    REPLACE BLIND SPOT MONITOR SENSOR RH Click here