Knock Sensor: Inspection

INSPECT 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 result is not as specified, replace the sensor.
Fig 1: Inspecting Knock Control Sensor
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.