Nissan Sentra B18 (2020-2025) Service Manual: Trunk Opener Request Switch
Component Function Check
Component Function Check
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CHECK FUNCTION
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CONSULT-
Select "Request switch BD/TR" in "Data Monitor" mode of "BCM(TRUNK)".
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Select that the function operates normally according to the following conditions:
Monitor item
Condition
Status
Request switch BD/TR
Trunk lid opener request switch
Pressed
On
Released
Off
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Is the inspection result normal?
YES >>Trunk lid opener request switch is OK.
NO >>Refer to Diagnosis Procedure.
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Diagnosis Procedure
Diagnosis Procedure
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CHECK TRUNK LID OPENER REQUEST SWITCH OUTPUT SIGNAL
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Ignition switch OFF.
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Check voltage between trunk lid opener request switch harness connector and ground.
(+)
(–)
Voltage
(Approx.)
Trunk lid opener request switch
Connector
Terminal
B14
1
Ground
Battery voltage
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Is the inspection result normal?
YES >>GO TO 3.
NO >>GO TO 2.
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CHECK TRUNK LID OPENER REQUEST SWITCH CIRCUIT
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Disconnect BCM connector and trunk lid opener request switch connector.
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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
M85
98
B14
1
Yes
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Check continuity between BCM harness connector and ground.
BCM
—
Continuity
Connector
Terminal
M85
98
Ground
No
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Is the inspection result normal?
YES>>Replace BCM. Refer to Removal and Installation.
NO>>Repair or replace harness.
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CHECK TRUNK LID OPENER REQUEST SWITCH GROUND CIRCUIT
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-
Disconnect trunk lid opener request switch connector.
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Check continuity between trunk lid opener request switch harness connector and ground.
Trunk lid opener request switch
—
Continuity
Connector
Terminal
B14
4
Ground
Yes
-
Is the inspection result normal?
YES >>GO TO 4.
NO >>Repair or replace harness.
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CHECK TRUNK LID OPENER REQUEST SWITCH
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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.
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CHECK INTERMITTENT INCIDENT
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Refer to Intermittent Incident.
Inspection End.
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Component Inspection
Component Inspection
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CHECK TRUNK LID OPENER REQUEST SWITCH
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Ignition switch OFF.
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Disconnect trunk lid opener request switch connector.
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Check continuity between trunk lid opener request switch terminals.
Trunk lid opener request switch
Condition
Continuity
Terminals
1
4
Trunk lid opener request switch
Pressed
Yes
Released
No
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Is the inspection result normal?
YES>>Inspection End.
NO>>Replace trunk lid opener request switch. Refer to Removal and Installation.
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CONSULT screen terms
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Dtc/circuit Diagnosis. Position Switch
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Component Inspection
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CHECK BACK-UP LAMP SWITCH
Disconnect position switch harness connector.
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...