Knock Sensor: Testing and Inspection

CIRCUIT DIAGRAM








HARNESS INSPECTION PROCEDURE

SENSOR INSPECTION
1. Disconnect the knock sensor connector.





2. Measure resistance between the terminal 2 and 3.

Standard value: about 5M Ohms [at 20°C (68°F)]

3. If the resistance is continual, replace the knock sensor.

Tightening torque
Knock sensor: 16 - 28 Nm
(160 - 250 kg.cm, 11.8 - 18.4 lb.ft)

4. Measure the capacitance between the terminal 2 & 3.

Standard value: 800 - 1600 pF

DTC P0326 - Knock Sensor:

TROUBLESHOOTING PROCEDURES:
HINT: When knock sensor signal is abnormally low.