BLIND SPOT MONITOR SYSTEM, Diagnostic DTC:C1AB3

DTC Code DTC Name
C1AB3 Short to GND in Outer Mirror Indicator(Slave)

DESCRIPTION

This DTC is stored when the blind spot monitor sensor LH detects a ground short in the outer rear view mirror indicator LH.

DTC Code DTC Detection Condition Trouble Area
C1AB3

Both of the following conditions are met:


  • Blind spot monitor main switch (integration control and panel assembly) is on.

  • The current that is sent from the blind spot monitor sensor to the indicator is above a specified level for a specified period of time.

  • Harness or connector

  • Outer mirror LH

  • Outer rear view mirror assembly LH

  • Front multiplex network door ECU LH

  • Blind spot monitor sensor LH

WIRING DIAGRAM

A01FDOLE32

INSPECTION PROCEDURE

Note

When checking for DTCs, make sure that the blind spot monitor main switch (integration control and panel 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 Click here.

      OK
      DTC C1AB3 is not output.

    NG

    CHECK HARNESS AND CONNECTOR (BLIND SPOT MONITOR SENSOR LH - FRONT MULTIPLEX NETWORK DOOR ECU LH) Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

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


    1. Disconnect the U59 blind spot monitor sensor LH connector.

    2. Disconnect the Q19 front multiplex network door ECU LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      U59-4 (OMIL) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT OUTER MIRROR LH (OUTER REAR VIEW MIRROR INDICATOR LH)


    1. Remove the outer mirror LH Click here.

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


    NG

    REPLACE OUTER MIRROR LH Click here

    OK

  4. CHECK OUTER REAR VIEW MIRROR ASSEMBLY LH


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

    2. Clear the DTCs Click here.

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

      OK
      DTC C1AB3 is not output.

    NG

    CHECK FRONT MULTIPLEX NETWORK DOOR ECU LH Click here

    OK

    END (OUTER REAR VIEW MIRROR ASSEMBLY LH IS DEFECTIVE)

  5. CHECK FRONT MULTIPLEX NETWORK DOOR ECU LH


    1. Replace the front multiplex network door ECU LH Click here.

    2. Clear the DTCs Click here.

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

      OK
      DTC C1AB3 is not output.

    NG

    REPLACE BLIND SPOT MONITOR SENSOR LH Click here

    OK

    END (FRONT MULTIPLEX NETWORK DOOR ECU LH IS DEFECTIVE)