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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Brakes >> Parking Brake System >> Electric Parking Brake System (Except HV) - Diagnostic Codes & Symptom Tests >> ELECTRIC PARKING BRAKE SYSTEM (for Gasoline Model) >> DTC C13B5-16: Electric Parking Brake Actuator Supply Voltage Circuit Voltage Below Threshold [12/2019 - ] >> Procedure

DTC C13B5-16: Electric Parking Brake Actuator Supply Voltage Circuit Voltage Below Threshold [12/2019 - ]: Procedure

  1. CHECK HARNESS AND CONNECTOR (+BS TERMINAL VOLTAGE) 
    1. Disconnect the A39 skid control ECU (brake actuator assembly) connector.
    2. Measure the voltage according to the value(s) in the table below.
      GTY907396Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Skid Control ECU (Brake Actuator Assembly))

      Standard Voltage

      Tester Connection Condition Specified Condition
      A39-14 (+BS) - Body ground Always 11 to 14 V

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY). Refer to  REMOVAL [12/2019 - 10/2022]  , or refer to  REMOVAL [10/2022 - 11/2023]  , or refer to  REMOVAL [11/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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