BLIND SPOT MONITOR SYSTEM, Diagnostic DTC:C1A45

DTC Code DTC Name
C1A45 Vehicle Speed Sensor

DESCRIPTION

The blind spot monitor sensor receives vehicle speed signals from the brake actuator assembly via CAN communication.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1A45

Vehicle Speed Sensor

A fail flag is transmitted from the brake actuator assembly.

  • Anti-lock brake system (w/o VSC)

  • Vehicle stability control system (w/ VSC)

  • 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

PROCEDURE

  1. CHECK BRAKE CONTROL SYSTEM

    1. Check brake control system.

    Result

    Proceed to

    w/o VSC

    w/ VSC
    w/ VSC

    CHECK OTHER DTC OUTPUT (VEHICLE STABILITY CONTROL SYSTEM)Click here

    w/o VSC

  2. CHECK OTHER DTC OUTPUT (ANTI-LOCK BRAKE SYSTEM)

    1. Check for anti-lock brake system DTCs.

      Click here

      Chassis > ABS/VSC/TRC > Trouble Codes

    Result

    Proceed to

    Anti-lock brake system DTCs are not output

    Anti-lock brake system DTCs are output
    Anti-lock brake system DTCs are output

    GO TO ANTI-LOCK BRAKE SYSTEM

    Click here

    Anti-lock brake system DTCs are not output

  3. CHECK DTC

    1. Clear the DTCs.

      Click here

      Chassis > ABS/VSC/TRC > Clear DTCs

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

      Click here

      Chassis > ABS/VSC/TRC > 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

    USE SIMULATION METHOD TO CHECK

    Click hereClick hereClick hereClick here

    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

  4. CHECK OTHER DTC OUTPUT (VEHICLE STABILITY CONTROL SYSTEM)

    1. Check for vehicle stability control system DTCs.

      Click here

    Chassis > ABS/VSC/TRC > Trouble Codes

    Result

    Proceed to

    Vehicle stability control system DTCs are not output

    Vehicle stability control system DTCs are output
    Vehicle stability control system DTCs are output

    GO TO VEHICLE STABILITY CONTROL SYSTEM

    Click here

    Vehicle stability control system DTCs are not output

  5. CHECK DTC

    1. Clear the DTCs.

      Click here

      Chassis > ABS/VSC/TRC > Clear DTCs

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

      Click here

      Chassis > ABS/VSC/TRC > 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

    USE SIMULATION METHOD TO CHECK

    Click hereClick hereClick hereClick here

    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