Nissan Sentra B18 (2020-2025) Service Manual: Trunk Lamp Switch
Component Function Check
Component Function Check
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CHECK FUNCTION
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CONSULT-
Select "Back door/trunk lid switch" in "Data Monitor" mode of "BCM(TRUNK)".
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Check that the function operates normally according to the following conditions:
Monitor item
Condition
Status
Back door/trunk lid switch
Trunk lid
Open
On
Closed
Off
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Is the inspection result normal?
YES >>Trunk room lamp switch is OK.
NO >>Refer to Diagnosis Procedure.
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Diagnosis Procedure
Diagnosis Procedure
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CHECK TRUNK ROOM LAMP SWITCH INPUT SIGNAL
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Ignition switch OFF.
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Check voltage between trunk lid opener assembly (ajar switch) harness connector and ground.
(+)
(–)
Voltage
(Approx.)
Trunk lid opener assembly (ajar switch)
Connector
Terminal
B59
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 ROOM LAMP SWITCH CIRCUIT
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Disconnect BCM connector and trunk lid opener assembly (ajar switch) connector.
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Check continuity between BCM harness connector and trunk lid opener assembly (ajar switch) harness connector.
BCM
Trunk lid opener assembly (ajar switch)
Continuity
Connector
Terminal
Connector
Terminal
M85
96
B59
1
Yes
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Check continuity between BCM harness connector and ground.
BCM
—
Continuity
Connector
Terminal
M85
96
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 ROOM LAMP SWITCH GROUND CIRCUIT
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Disconnect trunk lid opener assembly (ajar switch) connector.
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Check continuity between trunk lid opener assembly (ajar switch) harness connector and ground.
Trunk lid opener assembly (ajar switch)
—
Continuity
Connector
Terminal
B59
2
Ground
Yes
-
Is the inspection result normal?
YES >>GO TO 4.
NO >>Repair or replace harness.
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CHECK TRUNK ROOM LAMP SWITCH
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Refer to Component Inspection.
Is the inspection result normal?
YES >>GO TO 5.
NO >>Replace trunk lid opener assembly (ajar 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 ROOM LAMP SWITCH
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Ignition switch OFF.
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Disconnect trunk lid opener assembly (ajar switch)connector.
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Check continuing between trunk lid opener assembly (ajar switch) terminal.
Trunk lid opener assembly (ajar switch)
Condition
Continuity
Terminals
1
2
Trunk lid
Open
Yes
Close
No
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Is the inspection result normal?
YES >>Inspection End.
NO >>Replace trunk lid opener assembly (ajar switch). Refer to Removal and Installation.
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Other materials:
C1621-86 Bcm System
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
...
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Noise, Vibration and Harshness (nvh) Troubleshooting. Nvh Troubleshooting Chart
Nvh Troubleshooting Chart
NVH Troubleshooting Chart
Use chart below to find the cause of the symptom.
If necessary, repair or replace these parts.
...
Hood Switch
Component Function Check
Component Function Check
CHECK FUNCTION
CONSULT
Select "Hood switch" in "Data Monitor" mode of
"IPDM E/R".
Check "Hood switch" indication un ...