Nissan Sentra B18 (2020-2025) Service Manual / Engine / Work Procedure (After Replacing Electric Throttle Control Actuator) / Dtc/circuit Diagnosis / P0327 Ks

Nissan Sentra B18 (2020-2025) Service Manual: P0327 Ks

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
P0327	KNOCK SEN/CIRC-B1 (Knock sensor 1 circuit low bank 1 or single sensor)	Diagnosis condition	Engine running at idle
		Signal (terminal)	Knock sensor signal
		Threshold	An excessively low voltage from the sensor is sent to ECM
		Diagnosis delay time	—

POSSIBLE CAUSE

Harness or connectors (The knock sensor circuit is open or shorted.)
Knock sensor

FAIL-SAFE

Not applicable

Confirmation Procedure

Confirmation Procedure

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.

>>
GO TO 2.
PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine and let it idle for at least 5 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >>
Proceed to DTC Diagnosis Procedure.
NO-1 >>
To check malfunction symptom before repair: Refer to Intermittent Incident.
NO-2 >>
Confirmation after repair: INSPECTION END

Dtc Diagnosis Procedure

DTC Diagnosis Procedure

CHECK KNOCK SENSOR GROUND CIRCUIT

Turn ignition switch OFF.
Disconnect knock sensor harness connector.
Disconnect ECM harness connector.

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

Knock sensor		ECM		Continuity
Connector	Terminal	Connector	Terminal	Continuity
F62	1	F24	62	Existed

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

Is the inspection result normal?

YES >>

GO TO 2.

NO >>

Repair or replace malfunctioning part.

CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT

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

Knock sensor		ECM		Continuity
Connector	Terminal	Connector	Terminal	Continuity
F62	2	F24	63	Existed

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

Is the inspection result normal?

YES >>

GO TO 3.

NO >>

Repair or replace malfunctioning part.

CHECK KNOCK SENSOR

Refer to Component Inspection.

Is the inspection result normal?
YES >>
INSPECTION END
NO >>
Replace knock sensor. Refer to Exploded View.

 P0326 Knock Sensor

Dtc Description DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detected condition P0326 00 KNOCK SENSOR 1 B1 (Knock/Combustion Vibr...

 P0335 Ckp Sensor

Dtc Description DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition P0335 CKP SEN/CIRCUIT (Crankshaft position senso...

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