BLIND SPOT MONITOR SYSTEM, Diagnostic DTC:C1AC1

DTC Code DTC Name
C1AC1 Master Module Horizontal Axis Misalignment

DESCRIPTION

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

Tech Tips


  • If a drum tester such as a speedometer tester, brake/speedometer combination tester or chassis dynamometer is used with the blind spot monitor main switch (warning canceling switch assembly) 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 LH

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.

    Click here

  • 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.

PROCEDURE


  1. CHECK VEHICLE CONDITION


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

      Tech Tips

      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.

    B

    CHECK INSTALLATION CONDITION Click here

    A

  2. PERFORM BEAM AXIS CONFIRMATION


    1. Clean the rear bumper.

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

      Click here


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

      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 LH Click here Before replacing the blind spot monitor sensor LH, visually check for damage to the stud bolts or area surrounding the blind spot monitor sensor LH. If there is any damage to the stud bolts or area surrounding the blind spot monitor sensor LH, perform Blind Spot Monitor Sensor Installation Condition Inspection and adjust according to the result. Click here

  3. CHECK INSTALLATION CONDITION


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

      Click here

      Tech Tips

      Take the appropriate action in accordance with the result.

      Result
      Proceed to
      NEXT

    NEXT

  4. PERFORM BEAM AXIS CONFIRMATION


    1. Install the rear bumper.

      Click here

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

      Click here


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

      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 LH Click here