Knock Sensor

Check resistance between knock sensor terminal 1 and ground.

NOTE: It is necessary to use an ohmmeter which can measure more than 10 MΩ.
Resistance: Approximately 532 - 588 kΩ [at 20°C (68°F)]

CAUTION: Do not use any knock sensors that have been dropped or physically damaged. Use only new ones.

Fig 1: Checking Resistance Between Knock Sensor Terminal 1 And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.