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BLIND SPOT MONITOR SYSTEM, Diagnostic DTC:C1ABE

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

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

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 LH

  • RCTA buzzer (blind spot monitor buzzer)

  • Harness or connector
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WIRING DIAGRAM

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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.

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PROCEDURE


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    CHECK DTC


    1. Turn the power switch off.

    2. Turn the power switch on (IG).

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


      1. Body Electrical > Blind Spot Monitor Slave > Trouble Codes


      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

  2. Click here

    CHECK HARNESS AND CONNECTOR (RCTA BUZZER [BLIND SPOT MONITOR BUZZER] - AUXILIARY BATTERY AND BLIND SPOT MONITOR SENSOR LH)


    1. Disconnect the L55 RCTA buzzer (blind spot monitor buzzer) connector.

    2. Disconnect the L57 blind spot monitor sensor LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L55-2 (BZN) - L57-3 (BUZ) Always Below 1 Ω
      L55-2 (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
      L55-1 (BZP) - Body ground Power switch on (IG) 11 to 14 V
      L55-1 (BZP) - Body ground Power switch off Below 1 V
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

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    CHECK RCTA BUZZER (BLIND SPOT MONITOR BUZZER)


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

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    2. Clear the DTCs.

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      1. Body Electrical > Blind Spot Monitor Slave > Clear DTCs


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

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      1. Body Electrical > Blind Spot Monitor Slave > Trouble Codes


      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    • OK

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

    • NG

      REPLACE BLIND SPOT MONITOR SENSOR LHClick here