DTC Diagnosis Procedure
WARNING: This page is about a different car, the 2019 Nissan NV3500 HD and 2019 Nissan NV2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK KNOCK SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
- Disconnect knock sensor harness connector and ECM harness connector.
- 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
F218
2
F78
20
Existed
P0332, P0333
2
F219
2
- Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
GO TO 3.
NO
GO TO 2.
- DETECT MALFUNCTIONING PART
Check the following.
- Harness for open or short between knock sensor and ECM
- Loose or poor connection for each connector and harness
Repair open circuit or short to power in harness or connectors.
- CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
- 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
F218
1
F78
15
Existed
P0332, P0333
2
F219
1
18
- Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
GO TO 5.
NO
GO TO 4.
- Check the continuity between knock sensor harness connector and ECM harness connector.
- DETECT MALFUNCTIONING PART
Check the following.
- Harness for open or short between ECM and knock sensor
- Loose or poor connection for each connector and harness
Repair open circuit, short to ground or short to power in harness or connectors.
- CHECK KNOCK SENSOR
Refer to Component Inspection (Knock Sensor) .
Is the inspection result normal?
YES
INSPECTION END
NO
Replace malfunctioning knock sensor. Refer to Exploded View .