BLIND SPOT MONITOR SYSTEM, Diagnostic DTC:C1ABE

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

DESCRIPTION

DTC C1ABE is stored when the blind spot monitor sensor RH detects a ground short or open in RCTA buzzer (blind spot monitor buzzer) circuit.

DTC Code DTC Detection Condition Trouble Area
C1ABE

  • Both of the following conditions are met:


    • Blind spot monitor system is on with 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

B001IC3E63

CAUTION / NOTICE / HINT

Note


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

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

PROCEDURE


  1. CHECK DTC


    1. Clear the DTCs Click here.

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

      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 R44 RCTA buzzer (blind spot monitor buzzer) connector.

    2. Disconnect the R43 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
      R44-2 (BZN) - R43-3 (BUZ) Always Below 1 Ω
      R44-2 (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
      R44-1 (BZP) - Body ground Engine switch on (IG) 11 to 14 V
      R44-1 (BZP) - Body ground Engine switch off Below 1 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. REPLACE BLIND SPOT MONITOR BUZZER (RCTA BUZZER)


    1. Replace the RCTA buzzer (blind spot monitor buzzer) with a new or normally functioning 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 Click here.

      OK
      No DTCs are output.

    OK

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

    NG

    REPLACE BLIND SPOT MONITOR SENSOR RH Click here