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 RH detects an open in the outer rear view mirror indicator RH.

DTC No. Detection Item DTC Detection Condition Trouble Area Note
C1AB4 Open in Outer Mirror Indicator(Master)

    Both of the following conditions are met:

  • The blind spot monitor main switch (combination 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 RH (outer rear view mirror indicator RH)

  • Outer rear view mirror assembly RH

  • Harness or connector

  • Blind spot monitor sensor RH

  • Outer mirror control ECU assembly RH

 -

WIRING DIAGRAM

A01MGBTE03

CAUTION / NOTICE / HINT

Note

When checking for DTCs, make sure that the blind spot monitor main switch (combination switch assembly) is on.

PROCEDURE


  1. CHECK DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Blind Spot Monitor Master > Clear DTCs

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


      Body Electrical > Blind Spot Monitor Master > Trouble Codes
      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 RH - OUTER MIRROR CONTROL ECU ASSEMBLY RH AND BODY GROUND)


    1. Disconnect the Q20 blind spot monitor sensor RH connector.

    2. Disconnect the L1 outer mirror control ECU assembly RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q20-4 (OMIR) - L1-13 (BDSR) Always Below 1 Ω
      L1-7 (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 RH


    1. A01MHE6C21
      *a

      Component without harness connected

      (Outer Mirror Control ECU Assembly RH)

      Remove the outer mirror control ECU assembly RH.

      Click here

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L1-13 (BDSR) - z12-8 (BSM+) Always Below 1 Ω
      L1-7 (GND) - z12-12 (-) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY RH Click here

    OK

  4. CHECK OUTER REAR VIEW MIRROR ASSEMBLY RH


    1. Disconnect the z12 outer mirror control ECU assembly RH connector.

    2. Disconnect the IND1 outer rear view mirror RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      z12-8 (BSM+) - IND1-2 (+) Always Below 1 Ω
      z12-12 (-) - IND1-1 (-) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH Click here

    OK

  5. CHECK OUTER REAR VIEW MIRROR ASSEMBLY RH


    1. Replace the outer rear view mirror assembly RH.

      Click here

    2. Clear the DTCs.

      Click here


      Body Electrical > Blind Spot Monitor Master > Clear DTCs

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


      Body Electrical > Blind Spot Monitor Master > Trouble Codes
      OK
      DTC C1AB4 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    END (OUTER REAR VIEW MIRROR ASSEMBLY RH WAS DEFECTIVE)

    NG

    REPLACE BLIND SPOT MONITOR SENSOR RH Click here