BLIND SPOT MONITOR SYSTEM, Diagnostic DTC:C1AB8

DTC Code DTC Name
C1AB8 Destination Information Undefined

DESCRIPTION

This DTC is stored when correct destination information is not sent from the main body ECU (multiplex network body ECU) and destination information cannot be confirmed after a blind spot monitor has been replaced.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1AB8

Destination Information Undefined

The blind spot monitor sensor cannot communicate with the main body ECU (multiplex network body ECU).

  • CAN communication system (for LHD)

  • CAN communication system (for RHD)

  • Main body ECU (multiplex network body ECU)

  • Blind spot monitor sensor LH

  • Blind spot monitor sensor RH

CAUTION / NOTICE / HINT

Note:

  • When checking for DTCs, make sure that the blind spot monitor main switch (warning cancel switch assembly*1 or telltale light assembly*2) is on.

    • *1: for LHD

    • *2: for RHD

  • When replacing the main body ECU (multiplex network body ECU), make sure to replace it with a new one.

PROCEDURE

  1. CHECK DTC

    1. for LHD

      1. Check for CAN Communication System DTCs.

        Click here

    2. for RHD

      1. Check for CAN Communication System DTCs.

        Click here

    Result

    Proceed to

    CAN communication system DTCs are not output

    CAN communication system DTCs are output (for LHD)

    CAN communication system DTCs are output (for RHD)
    CAN communication system DTCs are output (for LHD)

    GO TO CAN COMMUNICATION SYSTEM

    Click here

    CAN communication system DTCs are output (for RHD)

    GO TO CAN COMMUNICATION SYSTEM

    Click here

    CAN communication system DTCs are not output

  2. REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    1. for LHD

      1. Replace the main body ECU (multiplex network body ECU).

        Click here

    2. for RHD

      1. Replace the main body ECU (multiplex network body ECU).

        Click here

    Result

    Proceed to

    NEXT
    NEXT

  3. RECHECK DTC

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

      Click here

      Body Electrical > Blind Spot Monitor Master > Trouble Codes

      Body Electrical > Blind Spot Monitor Slave > Trouble Codes

      Result

      Proceed to

      No DTC is output

      DTC is output from the blind spot monitor sensor LH (Master)

      DTC is output from the blind spot monitor sensor RH (Slave)
    No DTC is output

    END (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) IS DEFECTIVE)

    DTC is output from the blind spot monitor sensor LH (Master)

    REPLACE BLIND SPOT MONITOR SENSOR LH

    Click here

    DTC is output from the blind spot monitor sensor RH (Slave)

    REPLACE BLIND SPOT MONITOR SENSOR RH

    Click here