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Home >> Toyota >> 2023 >> Prius LE >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System - Diagnostic Codes (1 Of 6) >> Electronically Controlled Brake System >> Inspection [12/2022 - 03/2023] >> Procedure

Inspection [12/2022 - 03/2023]: Procedure

  1. INSPECT VSC OFF SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1146181Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (VSC OFF Switch (Electric Parking Brake Switch Assembly))

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K22-3 (+) - K22-7 (E) Switch pushed Below 1 Ω Ω
      K22-3 (+) - K22-7 (E) Switch not pushed 10 kΩ or higher kΩ
  2. INSPECT BRAKE HOLD SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY1146180Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Brake Hold Switch (Electric Parking Brake Switch Assembly))

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      K22-6 (+B) - K22-7 (E) Switch pushed Below 1 Ω Ω
      K22-6 (+B) - K22-7 (E) Switch not pushed 10 kΩ or higher kΩ
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