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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 36 (Electronically Controlled Brake System (HV) - Diagnostic Codes (06 Of 11)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C05C1-00: Brake Pedal Position Sensor "B" [12/2019 - 11/2023] >> Procedure

DTC C05C1-00: Brake Pedal Position Sensor "B" [12/2019 - 11/2023]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK BRAKE PEDAL 
    1. Check that the brake pedal and the brake pedal stroke sensor assembly are properly installed and that the pedal can be depressed normally.
    2. Check and adjust the brake pedal height.

      Refer to ADJUSTMENT [12/2019 - 10/2022] , or refer to ADJUSTMENT [10/2022 - ]

    3. Adjust the brake pedal stroke sensor assembly.

      Refer to INSTALLATION [12/2019 - 11/2023]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  2

  2. PERFORM BRAKE PEDAL STROKE SENSOR ASSEMBLY ZERO POINT CALIBRATION 
    1. Perform brake pedal stroke sensor assembly zero point calibration.

      Refer to UTILITY [12/2019 - 11/2023]

      Chassis > Brake/EPB > Utility 

      Tester Display
      Reset Memory

      Chassis > Brake/EPB > Utility 

      Tester Display
      Calibration

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  3

  3. CLEAR DTC 
    1. Clear the DTCs.

      Chassis > Brake Booster > Clear DTCs 

      Chassis > Brake/EPB > Clear DTCs 

    2. Turn the ignition switch off.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  4

  4. RECONFIRM DTC 
    1. Based on the Freeze Frame Data and interview with the customer, attempt to reproduce the conditions when the malfunction occurred.
    2. Check if the same DTC is output.

      Chassis > Brake Booster > Trouble Codes 

      Chassis > Brake/EPB > Trouble Codes 

      Result

      Result Proceed to
      Only DTC C05C1-00 is output. A
      DTCs are not output. B
      DTCs other than C05C1-00 are output. C

    Result: 

    B 

    END 

    Result: 

    C 

    REPAIR CIRCUITS INDICATED BY OUTPUT DTCS. Refer to  DIAGNOSTIC TROUBLE CODE CHART [12/2019 - 10/2021]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [10/2021 - 11/2023] 

    Result: 

    A 

    See step  5

  5. INSPECT BRAKE ACTUATOR ASSEMBLY (SENSOR OUTPUT) 
    1. Turn the ignition switch off.
      GTY920157Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Brake Pedal Stroke Sensor Assembly)
    2. Make sure that there is no looseness at the locking part and the connecting part of the connectors.

      OK

      The connector is securely connected.

    3. Disconnect the A43 brake pedal stroke sensor assembly connector.
    4. Check both the connector case and the terminals for deformation and corrosion.

      OK

      No deformation or corrosion.

    5. Turn the ignition switch to ON.
    6. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      A43-2 (VSK2) - A43-3 (SKG2) Ignition switch ON 4.84 to 5.16 V

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE BRAKE PEDAL STROKE SENSOR ASSEMBLY. Refer to  REMOVAL [12/2019 - 10/2022]  , or refer to  REMOVAL [10/2022 - 11/2023] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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