Nissan Sentra B18 (2020-2025) Service Manual / Body Exterior, Doors, Roof & Vehicle Security / Door & Lock :: Dtc/circuit Diagnosis / Hood Switch

Nissan Sentra B18 (2020-2025) Service Manual: Hood Switch

Component Function Check

CHECK FUNCTION

CONSULT

Select "Hood switch" in "Data Monitor" mode of "IPDM E/R".
Check "Hood switch" indication under the following condition:

Monitor item	Condition		Indication
Hood switch	Hood	Open	OFF
Hood switch	Hood	Close	ON

Is the indication normal?

YES >>

Hood switch is OK.

NO >>

Go to Diagnosis Procedure.

Diagnosis Procedure

CHECK HOOD SWITCH SIGNAL CIRCUITS

Ignition switch OFF.
Disconnect hood switch connector.
Check voltage between hood switch harness connector and ground.

(+)	(–)	Voltage (Approx.)
E58	2	Ground	Battery voltage

(+)

(–)

Voltage

(Approx.)

Hood switch

Connector

Terminal

E58

Ground

Battery voltage

Is the inspection result normal?

YES >>

GO TO 3.

NO >>

GO TO 2.

CHECK HOOD SWITCH SIGNAL CIRCUITS

Disconnect IPDM E/R connector.

Check continuity between IPDM E/R harness connector and hood switch harness connector.

IPDM E/R		Hood switch		Continuity
Connector	Terminal	Connector	Terminal	Continuity
E48	52	E58	1	Yes

Check continuity between IPDM E/R harness connector and ground.

IPDM E/R		—	Continuity
Connector	Terminal	—	Continuity
E48	52	Ground	No

Is the inspection result normal?

YES >>

Replace IPDM E/R. Refer to Removal and Installation.

NO >>

Repair or replace harness.

CHECK HOOD SWITCH GROUND CIRCUIT

Check continuity between hood switch harness connector and ground.

Hood switch		—	Continuity
Connector	Terminal	—	Continuity
E58	1	Ground	Yes

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace harness.

CHECK HOOD SWITCH
1. Refer to Component Inspection.
Is the inspection result normal?
YES >>
Inspection End.
NO >>
Replace hood switch. Refer to Removal and Installation.

Component Inspection

CHECK HOOD SWITCH

Ignition switch OFF.
Disconnect hood switch connector.

Check continuity between hood switch terminals.

Hood switch		Condition		Continuity
Terminals		Condition		Continuity
1	2	Hood switch	Press	Yes
1	2	Hood switch	Release	No

Is the inspection result normal?

YES >>

Inspection End.

NO >>

Replace hood switch. Refer to Removal and Installation.

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