Knock Sensor: Inspection

REMOVE THROTTLE BODY (See REMOVAL or REMOVAL )
REMOVE RADIATOR RESERVOIR (See REMOVAL )
REMOVE INTAKE MANIFOLD (See REMOVAL )
1ZZ-FE: REMOVE KNOCK SENSOR
1. Disconnect the knock sensor connector.
2. Using SST, remove the knock sensor.
  - SST 09816-30010
Fig 1: Removing Knock Sensor
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2ZZ-GE: REMOVE KNOCK SENSOR
1. Disconnect the knock sensor connector.
2. Remove the nut and knock sensor.
Fig 2: Removing Nut & Knock Sensor
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1ZZ-FE: INSPECT KNOCK SENSOR
Using an ohmmeter, check that there is continuity between the terminal and body.

If there is continuity, replace the sensor.

Fig 3: Checking There Is Continuity Between Terminal & Body Using An Ohmmeter
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2ZZ-GE: INSPECT KNOCK SENSOR
Using an ohmmeter, measure the resistance between terminals.

Fig 4: Measuring Resistance Between Terminals Using An Ohmmeter
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Resistance: 120-280 kΩ at 20°C (68°F)
If the resistance is not specified, replace the sensor.
1ZZ-FE: REINSTALL KNOCK SENSOR
1. Using SST, install the knock sensor.
  - SST 09816-30010
2. Connect the knock sensor connector.
2ZZ-GE: REINSTALL KNOCK SENSOR
1. Install the knock sensor with the nut.
2. Connect the knock sensor connector.
REINSTALL INTAKE MANIFOLD (See INSTALLATION )
REINSTALL RADIATOR RESERVOIR (See INSTALLATION )
REINSTALL THROTTLE BODY (See REMOVAL or REMOVAL )