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Engine Switch: Inspection

  1. INSPECT ENGINE SWITCH 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 1: Identifying Engine Switch Connector Terminals
      G05415405Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      STANDARD RESISTANCE CHART

      Tester Connection Switch Condition Specified Condition
      7 (SS1) - 5 (GND) Not pushed 10 kΩ or higher
      2 (SS2) - 5 (GND) Not pushed 10 kΩ or higher
      7 (SS1) - 5 (GND) Pushed 15 Ω
      2 (SS2) - 5 (GND) Pushed 15 Ω

      If the result is not as specified, replace the engine switch.

    2. Apply battery voltage between the terminals of the switch, and check the illumination condition of the switch.

      HINT:

      • If the positive (+) lead and the negative (-) lead are incorrectly connected, the engine switch indicator light will not illuminate.
      • If the voltage is too low, the indicator light will not illuminate.

    OK 

    MEASUREMENT CONDITION CHART

    Measurement Condition Specified Condition
    Battery positive (+) → Terminal 11 (SWIL)
    Battery negative (-) → Terminal 4 (COM) or 5 (GND)    		 Illuminates
    Battery positive (+) → Terminal 12 (INDS)
    Battery negative (-) → Terminal 4 (COM) or 5 (GND)    		 Illuminates
    Battery positive (+) → Terminal 13 (INDW)
    Battery negative (-) → Terminal 4 (COM) or 5 (GND)    		 Illuminates
    Fig 2: Identifying Engine Switch Connector Terminals
    G05415406Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    If the result is not as specified, replace the engine switch.

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