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Knock Sensor, Intake Manifold: Inspection

  1. INSPECT KNOCK SENSOR 
    1. Check the resistance.
      1. Using an ohmmeter, measure the resistance between the terminals.
        Fig 1: Measuring Resistance Between Knock Sensor Terminals
        G04968238Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Resistance 

        TERMINALS RESISTANCE SPECIFICATION

        Tester Connection Specified Condition
        1 (Ground)-2 (Output) 120 to 280 kΩ at 20°C (68°F)

        If the result is not as specified, replace the knock sensor.