1.CHECK GROUND CONNECTION

1. Turn ignition switch OFF.
2. Check ground connection M95. Refer to Ground Inspection in Circuit Inspection.

Is the inspection result normal?
YES>>GO TO 2.
NO>>Repair or replace ground connection.
2.CHECK KNOCK SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

1. Disconnect knock sensor harness connector and ECM harness connector.
2. Check the continuity between knock sensor harness connector and ECM harness connector.

   DTC | Knock sensor | ECM | Continuity
   Bank | Connector | Terminal | Connector | Terminal
   P0327, P0328 | 1 | F202 | 2 | F102 | 71 | Existed
   P0332, P0333 | 2 | F203 | 2

3. Also check harness for short to ground and short to power.

Is the inspection result normal?
YES>>GO TO 4.
NO>>GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.

- Harness connectors F47, F201
- Harness for open or short between knock sensor and ECM

>>Repair open circuit or short to power in harness or connectors.
4.CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1. Check the continuity between knock sensor harness connector and ECM harness connector.

   DTC | Knock sensor | ECM | Continuity
   Bank | Connector | Terminal | Connector | Terminal
   P0327, P0328 | 1 | F202 | 1 | F102 | 72 | Existed
   P0332, P0333 | 2 | F203 | 1 | 76

2. Also check harness for short to ground and short to power.

Is the inspection result normal?
YES>>GO TO 6.
NO>>GO TO 5.
5.DETECT MALFUNCTIONING PART
Check the following.

- Harness connectors F47, F201
- Harness for open or short between ECM and knock sensor

>>Repair open circuit, short to ground or short to power in harness or connectors.
6.CHECK KNOCK SENSOR
Refer to Component Inspection (GT-R certified NISSAN dealer).
Is the inspection result normal?
YES>>GO TO 7.
NO>>Replace malfunctioning knock sensor.
7.CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident.
>>INSPECTION END