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Knock Sensor: Inspection

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KNOCK CONTROL SENSOR
1. Using an ohmmeter, measure the resistance between the terminals.
  Resistance: 120 to 280 kΩ at 20°C (68°F)
  
  If the resistance is not specified, replace the sensor.
  
  Fig 1: Measuring Resistance Between Knock Control Sensor Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002