LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2024 >> NX 250 FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 53 (Electric Parking Brake System - Diagnostic Codes, Symptom Tests & Circuit Tests) >> ELECTRIC PARKING BRAKE SYSTEM (for HEV Model) >> DTC C060B-12: Left Electric Parking Brake Actuator Control Circuit Short to Battery [11/2021 - ] >> Procedure

DTC C060B-12: Left Electric Parking Brake Actuator Control Circuit Short to Battery [11/2021 - ]: Procedure

WARNING: This page is about a different car, the 2025 Lexus NX 350h, 2024 Lexus NX 350h, 2023 Lexus NX 350h, and 2022 Lexus NX 350h. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR SHORT TO +B 

    Pre-procedure1

    1. Turn the ignition switch off.
    2. Make sure the No. 2 parking brake wire assembly is securely installed.
    3. Disconnect the f4 parking brake actuator assembly LH connector.

      Procedure1

    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      f4-2 (LE+) - f4-1 (LE-) Electric parking brake not operating Below 1 V

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    5. None

    Result: 

    OK 

    REPLACE PARKING BRAKE ACTUATOR ASSEMBLY LH. Refer to  REMOVAL [11/2021 - 03/2024]  , or refer to  REMOVAL [03/2024 - ] 

    Result: 

    NG 

    See step  2

  2. CHECK FOR SHORT TO +B 

    Pre-procedure1

    1. Disconnect the fG3 No. 2 parking brake wire assembly connector.

      Procedure1

    2. Measure the voltage according to the value(s) in the table below.
      GTY1059850Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 2 Parking Brake Wire Assembly)

      Standard Voltage

      Tester Connection Condition Specified Condition
      fG3-1 - fG3-2 Electric parking brake not operating Below 1 V

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    3. None

    Result: 

    OK 

    REPLACE NO. 2 PARKING BRAKE WIRE ASSEMBLY 

    Result: 

    NG 

    See step  3

  3. CHECK FOR SHORT TO +B 

    Pre-procedure1

    1. Disconnect the fG3 No. 2 parking brake wire assembly connector.
    2. Disconnect the A38 No. 2 skid control ECU (brake actuator assembly) connector.

      Procedure1

    3. Measure the voltage according to the value(s) in the table below.
      GTY1059807Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector *b to No. 2 Skid Control ECU (Brake Actuator Assembly)
      *c to No. 2 Parking Brake Wire Assembly - -

      Standard Voltage

      Tester Connection Condition Specified Condition
      fG3-1 or A38-3 (MRL+) - Body ground Always Below 1 V
      fG3-2 or A38-2 (MRL-) - Body ground Always Below 1 V

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. None

    Result: 

    OK 

    REPLACE NO. 2 SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY). Refer to  REMOVAL [11/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

scientia non olet · About LEMON Manuals