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 Code DTC Detection Condition Trouble Area
C1ABD
  • Both of the following conditions are met:


    • Blind spot monitor main switch assembly (multi-function switch) is on with 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:


    • Blind spot monitor main switch assembly (multi-function switch) 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

A01DQCFE14

INSPECTION PROCEDURE

Note


  • When checking for DTCs, make sure that the blind spot main 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 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.

    NG
    OK
  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
    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.

    NG
    OK