2012 Toyota Prius VFACTORY OEM SERVICE PROCEDURE

Pre-Collision Brake Cancel Switch: Inspection: Inspection

  1. INSPECT PRE-COLLISION BRAKE CANCEL SWITCH ASSEMBLYΒ 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 1: Inspect Pre-Collision Brake Cancel Switch Assembly With Connector End View
      GTY328008Courtesy of Β© TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      1 - 2 Pressed Below 1 Ξ©
      Not pressed 10 kΞ© or higher
      TEXT IN ILLUSTRATION

      *a Component without harness connected
      (Pre-collision Brake Cancel Switch Assembly)
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.