Nissan Sentra B18 (2020-2025) Service Manual: Intelligent Key Warning Buzzer
Component Function Check
Component Function Check
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CHECK FUNCTION
-
CONSULT-
Select "OUTSIDE BUZZER" in "Active Test" mode of "HANDS FREE MODULE".
-
Select “On” or “Off” to check that it works normally.
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Is the inspection result normal?
YES>>Intelligent Key warning buzzer is OK.
NO>>Refer to Diagnosis Procedure.
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Diagnosis Procedure
Diagnosis Procedure
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CHECK INTELLIGENT KEY WARNING BUZZER CIRCUIT
-
-
Ignition switch OFF.
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Disconnect Intelligent Key unit connector and Intelligent Key warning buzzer connector.
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Check continuity between Intelligent Key unit harness connector and Intelligent Key warning buzzer harness connector.
Intelligent Key unit
Intelligent Key warning buzzer
Continuity
Connector
Terminal
Connector
Terminal
M155
3
E70
1
Yes
-
Check continuity between Intelligent Key unit harness connector and ground.
Intelligent Key unit
—
Continuity
Connector
Terminal
M155
3
Ground
No
-
Is the inspection result normal?
YES >>GO TO 2.
NO >>Repair or replace harness.
-
-
CHECK INTELLIGENT KEY WARNING BUZZER
-
Refer to Component Inspection.
Is the inspection result normal?
YES >>Replace Intelligent Key unit. Refer to Removal and Installation.
NO >>Replace Intelligent Key warning buzzer. Refer to Removal and Installation.
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Component Inspection
Component Inspection
-
CHECK INTELLIGENT KEY WARNING BUZZER
-
-
Ignition switch OFF.
-
Disconnect Intelligent Key warning buzzer connector.
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Connect battery power supply directly to Intelligent Key warning buzzer terminals and check the operation.
Intelligent Key warning buzzer
Operation
Terminals
(+)
(−)
1
2
Buzzer sounds
-
Is the inspection result normal?
YES>>Inspection End.
NO>>Replace Intelligent Key warning buzzer. Refer to Removal and Installation.
-
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