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
C1AB4 Open in Outer Mirror Indicator(Master)

    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 RH (outer rear view mirror indicator RH)

  • Outer mirror actuator assembly RH

  • Harness or connector

  • Blind spot monitor sensor RH

  • Front multiplex network door ECU RH

WIRING DIAGRAM

B000ZB6E26

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CHECK DTC


    1. Turn the engine switch off.

    2. Turn the engine switch on (IG).

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


      Body Electrical > Blind Spot Monitor Master > Trouble Codes
      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  2. CHECK HARNESS AND CONNECTOR (FRONT MULTIPLEX NETWORK DOOR ECU RH - BLIND SPOT MONITOR SENSOR RH AND BODY GROUND)


    1. Disconnect the X53 blind spot monitor sensor RH connector.

    2. Disconnect the R9 front multiplex network door ECU RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      X53-4 (OMIR) - R9-21 (BSMI) Always Below 1 Ω
      R9-1 (GND) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT FRONT MULTIPLEX NETWORK DOOR ECU RH


    1. B000XH5C03
      *a

      Component without harness connected

      (Front Multiplex Network Door ECU RH)

      Disconnect the front multiplex network door ECU RH connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      R9-21 (BSMI) - R10-8 (BSM+) Always Below 1 Ω
      R9-1 (GND) - R10-12 (HTR-) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT MULTIPLEX NETWORK DOOR ECU RH Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (FRONT MULTIPLEX NETWORK DOOR ECU RH - OUTER MIRROR ACTUATOR ASSEMBLY RH)


    1. Disconnect the R10 front multiplex network door ECU RH connector.

    2. Disconnect the R6 outer mirror actuator assembly RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      R10-8 (BSM+) - R6-8 (BSR+) Always Below 1 Ω
      R10-12 (HTR-) - R6-12 (-) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT OUTER MIRROR ACTUATOR ASSEMBLY RH


    1. Disconnect the R6 outer mirror actuator assembly RH connector.

    2. Disconnect the IND1 outer mirror RH (outer rear view mirror indicator RH) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      R6-8 (BSR+) - IND1-2 (+) Always Below 1 Ω
      R6-12 (-) - IND1-1 (-) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE OUTER MIRROR ACTUATOR ASSEMBLY RH Click here

    OK

  6. INSPECT OUTER MIRROR RH (OUTER REAR VIEW MIRROR INDICATOR RH)


    1. Remove the outer mirror RH (outer rear view mirror indicator RH).

      Click here

    2. Inspect the outer mirror RH (outer rear view mirror indicator RH).

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE BLIND SPOT MONITOR SENSOR RH Click here

    NG

    REPLACE OUTER MIRROR RH (OUTER REAR VIEW MIRROR INDICATOR RH) Click here