Nissan Sentra B18 (2020-2025) Service Manual / Body Exterior, Doors, Roof & Vehicle Security / Security Control System :: Intelligent Key System / Dtc/circuit Diagnosis / Clutch Master Cylinder (clutch Switch)

Nissan Sentra B18 (2020-2025) Service Manual: Clutch Master Cylinder (clutch Switch)

Component Function Check

Component Function Check

CHECK FUNCTION

CONSULT

Ignition switch ON.
Select “INTELLIGENT KEY” mode of “BCM”.
Select “Clutch end SW”, “Clutch start SW” in “Data Monitor” mode.
Check that the function operates normally according to the following conditions.

Monitor item	Condition		Status
Clutch end SW	Clutch pedal	RELEASED	Off
Clutch end SW		DEPRESSED	On
Clutch start SW		RELEASED	Off
Clutch start SW		DEPRESSED	On

Is the inspection result normal?

YES >>

Clutch master cylinder (clutch switch) is OK.

NO >>

Refer to: Diagnosis Procedure.

Diagnosis Procedure

Diagnosis Procedure

CHECK CLUTCH MASTER CYLINDER (CLUTCH SWITCH) POWER SUPPLY

Disconnect clutch master cylinder (clutch switch) connector.
Ignition switch ON.

Check voltage between clutch master cylinder (clutch switch) harness connector and ground.

(+)	(–)	Voltage (Approx.)
E32	8	Ground	Battery voltage

(+)

(–)

Voltage

(Approx.)

Clutch master cylinder (clutch switch)

Connector

Terminal

E32

Ground

Battery voltage

Is the inspection result normal?

YES >>

GO TO 2.

NO >>

Repair or replace harness.

CHECK CLUTCH MASTER CYLINDER (CLUTCH SWITCH) GROUND CIRCUIT

Check continuity between clutch master cylinder (clutch switch) harness connector and ground.

Clutch master cylinder (clutch switch)		—	Continuity
Connector	Terminal	—	Continuity
E32	7	Ground	Yes

Is the inspection result normal?

YES >>

GO TO 3.

NO >>

Repair or replace harness.

CHECK CLUTCH MASTER CYLINDER (CLUTCH SWITCH) START CIRCUIT

Ignition switch OFF.
Disconnect BCM connector.

Check continuity between clutch master cylinder (clutch switch) harness connector and BCM harness connector.

Clutch master cylinder (clutch switch)		BCM		Continuity
Connector	Terminal	Connector	Terminal	Continuity
E32	5	M142	113	Yes

Is the inspection result normal?

YES >>

GO TO 4.

NO >>

Repair or replace harness.

CHECK CLUTCH MASTER CYLINDER (CLUTCH SWITCH) END CIRCUIT

Ignition switch OFF.
Disconnect BCM connector.

Check continuity between clutch master cylinder (clutch switch) harness connector and BCM harness connector.

Clutch master cylinder (clutch switch)		BCM		Continuity
Connector	Terminal	Connector	Terminal	Continuity
E32	6	M142	112	Yes

Is the inspection result normal?

YES >>

GO TO 5.

NO >>

Replace clutch master cylinder (clutch switch). Refer to Removal and Installation.

CHECK INTERMITTENT INCIDENT
1. Refer to Intermittent Incident.
YES >>
Inspection End.

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