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:

  • Blind spot monitor main switch (warning canceling switch assembly) is on.


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

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

  • Outer rear view mirror assembly LH

  • Wire harness or connector

  • Blind spot monitor sensor LH

  • Outer mirror control ECU assembly LH

WIRING DIAGRAM

A01W0UIE19

CAUTION / NOTICE / HINT

Note

When checking for DTCs, make sure that the blind spot monitor main switch (warning canceling switch assembly) 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
      No DTCs are output.

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

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


    1. Disconnect the U8 blind spot monitor sensor LH connector.

    2. Disconnect the M9 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
      U8-4 (OMIL) - M9-13 (BDSL) Always Below 1 Ω
      M9-7 (GND) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT OUTER MIRROR CONTROL ECU ASSEMBLY LH


    1. Disconnect the z7 outer mirror control ECU assembly LH connector.

    2. A01W3OTE03
      Text in Illustration
      *a

      Component without harness connected

      (Outer Mirror Control ECU Assembly LH)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      M9-13 (BDSL) - z7-8 (BSM) Always Below 1 Ω
      M9-7 (GND) - z7-12 (-) Always Below 1 Ω

    NG

    REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY LH - OUTER REAR VIEW MIRROR LH)


    1. Disconnect the IND2 outer rear view mirror LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      z7-8 (BSM) - IND2-1 (+) Always Below 1 Ω
      z7-12 (-) - IND2-2 (-) Always Below 1 Ω

    NG

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH Click here

    OK

  5. REPLACE OUTER REAR VIEW MIRROR LH


    1. Replace the outer rear view mirror LH Click here.


    NEXT

  6. CHECK DTC


    1. Clear the DTCs Click here.

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

      OK
      No DTCs are output.

    OK

    END (OUTER REAR VIEW MIRROR LH WAS DEFECTIVE)

    NG

    REPLACE BLIND SPOT MONITOR SENSOR LH Click here