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)]

Fig 1: Checking Resistance Between Knock Sensor Terminal 1 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

CAUTION: Never use any knock sensors that have been dropped or physically damaged. Use only new ones.
If NG, replace knock sensor. Refer to "DISASSEMBLY AND ASSEMBLY ".