DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> Blind Spot Monitor System - Diagnostic Codes & Symptom Tests >> Blind Spot Monitor System >> DTC C1A47: Steering Angle Sensor [12/2019 - 11/2023] >> Procedure

DTC C1A47: Steering Angle Sensor [12/2019 - 11/2023]: Procedure

  1. CHECK DTC 
    1. Turn the ignition switch off.
    2. Turn the ignition switch to ON.
    3. Recheck for DTCs and check if the same DTC is output again.

      Body Electrical > Blind Spot Monitor Master > Trouble Codes 

      Body Electrical > Blind Spot Monitor Slave > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - ] 

    Result: 

    NG 

    See step  2

  2. REPLACE STEERING SENSOR 
    1. Replace the steering sensor.

      Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  3

  3. RECHECK DTC 
    1. Turn the ignition switch off.
    2. Turn the ignition switch to ON.
    3. Recheck for DTCs and check if the same DTC is output again.

      Body Electrical > Blind Spot Monitor Master > Trouble Codes 

      Body Electrical > Blind Spot Monitor Slave > Trouble Codes 

      Result

      Result Proceed to
      No DTCs are output A
      DTC C1A47 is output ("Blind Spot Monitor Master") B
      DTC C1A47 is output ("Blind Spot Monitor Slave") C

    Result: 

    END 

    Result: 

    REPLACE BLIND SPOT MONITOR SENSOR LH (MASTER). Refer to  REMOVAL [12/2019 - 10/2022]  , or refer to  REMOVAL [10/2022 - 11/2023] 

    Result: 

    REPLACE BLIND SPOT MONITOR SENSOR RH (SLAVE). Refer to  REMOVAL [12/2019 - 10/2022]  , or refer to  REMOVAL [10/2022 - 11/2023]