Nissan Sentra B18 (2020-2025) Service Manual / Engine / Work Procedure (After Replacing Electric Throttle Control Actuator) / Dtc/circuit Diagnosis / P0335 Ckp Sensor

Nissan Sentra B18 (2020-2025) Service Manual: 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 sensor “A” circuit)	Diagnosis condition	Engine running or cranking
		Signal (terminal)	Crankshaft position sensor (POS) signal
		Threshold	The crankshaft position sensor (POS) signal is not detected by the ECM during the first few seconds of engine cranking The proper pulse signal from the crankshaft position sensor (POS) is not sent to ECM while the engine is running
		Diagnosis delay time	—

POSSIBLE CAUSE

Harness or connectors [Crankshaft position sensor (POS) circuit is open or shorted.]
Crankshaft position sensor (POS)
Signal plate

FAIL-SAFE

Engine Control System

Engine operating condition in fail-safe mode
Fail safe mode		Nissan Sentra Vehicle behavior
Device fix mode		This mode fixes the electric IVT motor and the EVT control solenoid valve in the reference position. The intake manifold runner control valve motor is turned OFF (intake manifold runner control valve opens).
Combustion control mode	Stratified charge combustion control at starting	No stratified charge combustion at starting (cold start).
	Idle speed control	Stops feedback control of idle speed and controls with specified speed.
	Recovery speed control at decelerating	Stops recovery speed control by the fuel cut at decelerating and controls with specified speed.
	Idle neutral control	Stops idle neutral control.

Idle Start/Stop System

When a DTC is detected, the start/stop indicator lamp blinks slowly and the idle start/stop system operation is prohibited.

When ECM detects error while operating the idle start/stop system, ECM restarts the engine.

Confirmation Procedure

Confirmation Procedure

CHECK DTC PRIORITY

If DTC P0335 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.

Is applicable DTC detected?
YES >>
Perform diagnosis of applicable. Refer to DTC Description.
NO >>
GO TO 2.
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 10.5 V at idle.

>>
GO TO 3.
PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for at least 5 seconds.
  
  If engine does not start, crank engine for at least 2 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 DTC PRIORITY

If DTC P0335 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.

Is applicable DTC detected?
YES >>
Perform diagnosis of applicable. Refer to DTC Description.
NO >>
GO TO 2.
CHECK HARNESS CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect crankshaft position (CKP) sensor harness connectors.
3. Reconnect crankshaft position (CKP) sensor harness connectors.
4. Perform DTC confirmation procedure
Is DTC detected?
YES >>
GO TO 3.
NO >>
INSPECTION END
CHECK GROUND CONNECTION

Check ground connection.

Is the in spection result normal?
YES >>
GO TO 4.
NO >>
Repair or replace ground connection.

CHECK CKP SENSOR (POS) POWER SUPPLY CIRCUIT-1

Turn ignition switch OFF.
Disconnect crankshaft position (CKP) sensor (POS) harness connector.
Turn ignition switch ON.

Check the voltage between CKP sensor (POS) harness connector and ground.

CKP sensor (POS)			Condition	Voltage (Approx.)
Connector	+	−
Connector	Terminal
F22^1 F40^2	1	2	Ignition switch: ON	5 V
F22^1 F40^2	1	2	Ignition switch: OFF	0 V

*1: Without idle start/stop system

*2: With idle start/stop system

Is the inspection result normal?

YES >>

GO TO 9.

NO >>

GO TO 5.

CHECK CKP SENSOR (POS) POWER SUPPLY CIRCUIT-2

Turn ignition switch OFF.
Disconnect ECM harness connector.
Check the continuity between CKP sensor (POS) harness connector and ECM harness connector.

CKP sensor (POS)	ECM	Continuity
F22^1 F40^2	1	F24	16	Existed

CKP sensor (POS)

ECM

Continuity

Connector

Terminal

Connector

Terminal

F22^*1

F40^*2

F24

Existed

*1: Without idle start/stop system

*2: With idle start/stop system

Is the inspection result normal?

YES >>

GO TO 6.

NO >>

Repair or replace malfunctioning part.

CHECK CKP SENSOR (POS) GROUND CIRCUIT

Turn ignition switch OFF.
Disconnect ECM harness connector.

Check the continuity between CKP sensor (POS) harness connector and ECM harness connector.

CKP sensor (POS)	ECM	Continuity
F22^1 F40^2	2	F24	17	Existed

CKP sensor (POS)

ECM

Continuity

Connector

Terminal

Connector

Terminal

F22^*1

F40^*2

F24

Existed

*1: Without idle start/stop system

*2: With idle start/stop system

Is the inspection result normal?

YES >>

GO TO 7.

NO >>

Repair or replace malfunctioning part.

CHECK ECM GROUND CIRCUIT

Check the continuity between ECM harness connector and ground.

ECM		—	Continuity
Connector	Terminal	—	Continuity
F24	5	Ground	Existed
F24	65
F25	69
E16	157
	159
	162

Also check harness for short to power.

Is the inspection result normal?

YES >>

GO TO 8.

NO >>

Repair or replace malfunctioning part.

CHECK CKP SENSOR (POS) POWER SUPPLY CIRCUIT-3

Turn ignition switch OFF.
Disconnect ECM harness connector.

Check the continuity between CKP sensor (POS) harness connector and ECM harness connector.

CKP sensor (POS)	ECM	Continuity
F22^1 F40^2	3	F24	21	Existed

CKP sensor (POS)

ECM

Continuity

Connector

Terminal

Connector

Terminal

F22^*1

F40^*2

F24

Existed

*1: Without idle start/stop system

*2: With idle start/stop system

Is the inspection result normal?

YES >>

GO TO 9.

NO >>

Repair or replace malfunctioning part.

CHECK CKP SENSOR (POS)

Refer to Component Inspection.

Is the inspection result normal?
YES >>
GO TO 10.
NO >>
Replace crankshaft position sensor (POS). Refer to Exploded View.
CHECK GEAR TOOTH
1. Remove crankshaft position sensor (POS). Refer to Exploded View.
2. Look into the mounting hole of the crankshaft position sensor (POS) to check that there is no missing gear tooth in the signal plate .
Is the inspection result normal?
YES >>
INSPECTION END
NO >>
Replace the signal plate. Refer to Exploded View.

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