4 Runner 2WD V6-4.0L (1GR-FE) (2006)
Knock Sensor: Testing and Inspection
INSPECT KNOCK SENSOR
a. Using an ohmmeter, measure the resistance between terminals.
Resistance: 120 - 280 kOhms at 20 degrees C (68 degrees F)
HINT: If the resistance is not as specified, replace the sensor.