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BLIND SPOT MONITOR SYSTEM, Diagnostic DTC:C1AC1

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DTC Code DTC Name
C1AC1 Master Module Horizontal Axis Misalignment
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DESCRIPTION

This DTC is stored when the angle of the blind spot monitor sensor RH deviates more than the allowable range from the horizontal axis.

Tip:

  • If a drum tester such as a speedometer tester, brake/speedometer combination tester or chassis dynamometer is used with the blind spot monitor system on, the blind spot monitor sensor may store this DTC by mistake.

  • When mud, snow, ice, a sticker, etc. is covering the sensor or its surrounding area on the rear bumper, the blind spot monitor sensor may store this DTC by mistake.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1AC1 Master Module Horizontal Axis Misalignment When the blind spot monitor sensor deviates 5 degrees or more from the horizontal axis when the system is activated Blind spot monitor sensor RH
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CAUTION / NOTICE / HINT

Note:

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

  • If the bumper is damaged or the vehicle has a history of body repair, there is a possibility that the installation area of the blind spot monitor sensor may be deformed and the blind spot monitor sensor system may not operate correctly, so visually inspect the blind spot monitor sensor installation area (frame, stud bolt) to make sure it is not dented or bent.

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    If the visual inspection finds a problem, check the installation condition of the blind spot monitor sensor, and adjust the installation position of the blind spot monitor sensor as necessary.

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PROCEDURE


  1. Click here

    CHECK VEHICLE CONDITION


    1. Check the condition of the rear bumper around the blind spot monitor sensors.

      Tip:

      When mud, snow, ice, a sticker, etc. is covering the sensor or its surrounding area on the rear bumper, the blind spot monitor sensor may store this DTC by mistake.

      Result
      Result Proceed to
      A sticker, mud, snow, ice, etc. is covering the sensor or surrounding area on the rear bumper. A
      There are scratches or dents on the rear bumper around the sensors. B
      No abnormalities.

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    PERFORM BEAM AXIS CONFIRMATION


    1. Clean the rear bumper.

    2. Perform Blind Spot Monitor Beam Axis Confirmation using the GTS.

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      1. Body Electrical > Blind Spot Monitor Master > Utility
        Tester Display
        BSM Master Beam Axis Display





      1. Body Electrical > Blind Spot Monitor Master > Utility
        Tester Display
        BSM Master Beam Axis Adjustment




      Result
      Proceed to
      OK
      NG

    • OK

      END

    • NG

      REPLACE BLIND SPOT MONITOR SENSOR RHClick here

      Note:

      Before replacing the blind spot monitor sensor RH, visually check for damage to the stud bolts or area surrounding the blind spot monitor sensor RH.

      If there is any damage to the stud bolts or area surrounding the blind spot monitor sensor RH, perform Blind Spot Monitor Sensor Installation Condition Inspection and adjust according to the result.

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  3. Click here

    CHECK INSTALLATION CONDITION


    1. Check the installation condition of the blind spot monitor sensor RH.

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      OK
      The blind spot monitor installation position is within the specified range
      Result
      Proceed to
      OK
      NG

  4. Click here

    ADJUST THE INSTALLATION POSITION OF THE BLIND SPOT MONITOR SENSOR RH

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    Result
    Proceed to
    NEXT

  5. Click here

    PERFORM BEAM AXIS CONFIRMATION


    1. Perform Blind Spot Monitor Beam Axis Confirmation using the GTS.

      Click here


      1. Body Electrical > Blind Spot Monitor Master > Utility
        Tester Display
        BSM Master Beam Axis Display





      1. Body Electrical > Blind Spot Monitor Master > Utility
        Tester Display
        BSM Master Beam Axis Adjustment




      Result
      Proceed to
      OK
      NG

    • OK

      END

    • NG

      REPLACE BLIND SPOT MONITOR SENSOR RHClick here