Nissan Sentra B18 (2020-2025) Service Manual: Diagnosis Procedure

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

Diagnosis Procedure

CHECK TRUNK LID OPENER REQUEST SWITCH OUTPUT SIGNAL

Ignition switch OFF.

Check voltage between trunk lid opener request switch harness connector and ground.

(+)	(–)	Voltage (Approx.)
B14	1	Ground	Battery voltage

(+)

(–)

Voltage

(Approx.)

Trunk lid opener request switch

Connector

Terminal

B14

Ground

Battery voltage

Is the inspection result normal?

YES >>

GO TO 3.

NO >>

GO TO 2.

CHECK TRUNK LID OPENER REQUEST SWITCH CIRCUIT

Disconnect BCM connector and trunk lid opener request switch connector.

Check continuity between BCM harness connector and trunk lid opener request switch harness connector.

BCM		Trunk lid opener request switch		Continuity
Connector	Terminal	Connector	Terminal	Continuity
M85	98	B14	1	Yes

Check continuity between BCM harness connector and ground.

BCM		—	Continuity
Connector	Terminal	—	Continuity
M85	98	Ground	No

Is the inspection result normal?

YES>>

Replace BCM. Refer to Removal and Installation.

NO>>

Repair or replace harness.

CHECK TRUNK LID OPENER REQUEST SWITCH GROUND CIRCUIT

Disconnect trunk lid opener request switch connector.

Check continuity between trunk lid opener request switch harness connector and ground.

Trunk lid opener request switch		—	Continuity
Connector	Terminal	—	Continuity
B14	4	Ground	Yes

Is the inspection result normal?

YES >>

GO TO 4.

NO >>

Repair or replace harness.

CHECK TRUNK LID OPENER REQUEST SWITCH
1. Refer to Component Inspection.
Is the inspection result normal?
YES >>
GO TO 5.
NO >>
Replace trunk lid opener request switch. Refer to Removal and Installation.
CHECK INTERMITTENT INCIDENT
1. Refer to Intermittent Incident.
>>
Inspection End.

Component Function Check

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Component Inspection

Component Inspection CHECK TRUNK LID OPENER REQUEST SWITCH Ignition switch OFF. Disc ...

Other materials:

Component Function Check
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Component Parts
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Removal and Installation
Removal and Installation CAUTION: Before replacing BCM, perform “ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (BCM)” to save or print current Nissan Sentra vehicle specification. Refer to Description. When replacing the BCM ...