BLIND SPOT MONITOR SYSTEM, Diagnostic DTC:C1AB1

DTC Code DTC Name
C1AB1 Short to +B in Outer Mirror Indicator(Slave)

DESCRIPTION

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

DTC No. Detection Item DTC Detection Condition Trouble Area
C1AB1 Short to +B in Outer Mirror Indicator(Slave)

    Both of the following conditions are met:

  • The blind spot monitor system is on


  • The blind spot monitor sensor is not sending voltage to the indicator but the indicator receives voltage above a specified level for a specified period of time

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

  • Outer mirror actuator assembly LH

  • Harness or connector

  • Blind spot monitor sensor LH

  • Front multiplex network door ECU LH

WIRING DIAGRAM

B006FFEE40

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CHECK DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Blind Spot Monitor Slave > Clear DTCs

    2. Turn the engine switch off.

    3. Turn the engine switch on (IG).

    4. Check for DTCs and check if the same DTC is output again.


      Body Electrical > Blind Spot Monitor Slave > Trouble Codes
      OK
      DTC C1AB1 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  2. CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR INDICATOR CIRCUIT)


    1. Disconnect the blind spot monitor sensor LH connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      L57-4 (OMIL) - Body ground Engine switch on (IG) Below 1 V
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE BLIND SPOT MONITOR SENSOR LH Click here

    NG

  3. CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR INDICATOR CIRCUIT)


    1. Disconnect the L57 blind spot monitor sensor LH connector.

    2. Disconnect the IND2 outer mirror LH (outer rear view mirror indicator LH) connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      L57-4 (OMIL) - Body ground Engine switch on (IG) Below 1 V
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

  4. CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR INDICATOR CIRCUIT)


    1. Disconnect the L57 blind spot monitor sensor LH connector.

    2. Disconnect the z38 outer rear view mirror assembly LH connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      L57-4 (OMIL) - Body ground Engine switch on (IG) Below 1 V
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE OUTER MIRROR ACTUATOR ASSEMBLY LH Click here

    NG

  5. CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR INDICATOR CIRCUIT)


    1. Disconnect the L57 blind spot monitor sensor LH connector.

    2. Disconnect the H31 front multiplex network door ECU LH connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      L57-4 (OMIL) - Body ground Engine switch on (IG) Below 1 V
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE FRONT MULTIPLEX NETWORK DOOR ECU LH Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR