BLIND SPOT MONITOR SYSTEM, Diagnostic DTC:C1AB4

DTC Code DTC Name
C1AB4 Open in Outer Mirror Indicator(Master)

DESCRIPTION

This DTC is stored when the blind spot monitor sensor LH detects an open in the outer rear view mirror indicator LH.

DTC No. DTC Detection Condition Trouble Area
C1AB4

    Both of the following conditions are met:

  • The blind spot monitor system is on

  • The current flowing to the indicator is below a specified value when indicator operation voltage is being sent to the indicator

  • Outer mirror LH (outer rear view mirror indicator LH)

  • Outer rear view mirror assembly LH

  • Harness or connector

  • Blind spot monitor sensor LH

  • Outer mirror control ECU assembly LH

WIRING DIAGRAM

B001G25E33

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CHECK DTC


    1. Clear the DTCs.

      Click here

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

      OK
      DTC C1AB4 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  2. CHECK HARNESS AND CONNECTOR (BLIND SPOT MONITOR SENSOR LH - OUTER MIRROR CONTROL ECU ASSEMBLY LH AND BODY GROUND)


    1. Disconnect the R42 blind spot monitor sensor LH connector.

    2. Disconnect the K12 outer mirror control ECU assembly LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      R42-4 (OMIL) - K12-13 (BDSL) Always Below 1 Ω
      K12-7 (GND) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT OUTER MIRROR CONTROL ECU ASSEMBLY LH


    1. B001F6GC29
      *a

      Component without harness connected

      (Outer Mirror Control ECU Assembly LH)

      Remove the outer mirror control ECU assembly LH.

      Click here

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K12-13 (BDSL) - z18-8 (BDIL) Always Below 1 Ω
      K12-7 (GND) - z18-12 (HTR-) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH Click here

    OK

  4. CHECK OUTER REAR VIEW MIRROR ASSEMBLY LH


    1. Disconnect the z18 outer mirror control ECU assembly LH connector.

    2. Disconnect the IND2 outer mirror LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      z18-8 (BDIL) - IND2-2 (+) Always Below 1 Ω
      z18-12 (HTR-) - IND1-2 (-) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH Click here

    OK

  5. CHECK OUTER MIRROR LH


    1. Replace the outer mirror LH.

      Click here

    2. Clear the DTCs.

      Click here

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

      OK
      DTC C1AB4 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    END (OUTER MIRROR LH WAS DEFECTIVE)

    NG

    REPLACE BLIND SPOT MONITOR SENSOR LH Click here