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On-Vehicle Inspection [11/2016 - ]: Procedure

  1. INSPECT STOP LIGHT SWITCH ASSEMBLY 
    1. Disconnect the A86 stop light switch assembly connector.
      GTY710779Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Stop Light Switch Assembly)
    2. Measure the voltage and resistance on the wire harness side connector according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      A86-7 (B) - A86-2 (GND) Always 11 to 14 V
      A86-6 (B) - A86-2 (GND) Ignition switch ON 11 to 14 V

      Standard Resistance

      Tester Connection Condition Specified Condition
      A86-2 (GND) - Body ground Always Below 1 Ω

      If the result is not as specified, repair or replace the wire harness or connector.

    3. Connect the A86 stop light switch assembly connector.
      GTY700077Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Stop Light Switch Assembly)
    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      A86- 1 (OUT) - A86-2 (GND) Ignition switch off, brake pedal not depressed Below 1 V
      A86-1 (OUT) - A86-2 (GND) Ignition switch off, brake pedal depressed 11 to 14 V
      A86-3 (L) - A86-2 (GND) Ignition switch off, brake pedal not depressed Below 1 V
      A86-3 (L) - A86-2 (GND) Ignition switch off, brake pedal depressed 11 to 14 V
      A86-4 (ACC) - A86-2 (GND) Ignition switch off 11 to 14 V
      A86-5 (L) - A86-2 (GND) Ignition switch ON, brake pedal not depressed 11 to 14 V
      A86-5 (L) - A86-2 (GND) Ignition switch ON, brake pedal depressed Below 1 V

      If the result is not as specified, replace the stop light switch assembly.