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DLK-72
< WIRING DIAGRAM >
INTELLIGENT KEY SYSTEM
ABKIA3618GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
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INTELLIGENT KEY SYSTEMDLK-73
< WIRING DIAGRAM >
C
D E
F
G H
I
J
L
M A
B
DLK
N
O P
AAKIA1161GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
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DLK-74
< WIRING DIAGRAM >
INTELLIGENT KEY SYSTEM
ABKIA4807GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
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INTELLIGENT KEY SYSTEMDLK-75
< WIRING DIAGRAM >
C
D E
F
G H
I
J
L
M A
B
DLK
N
O P
ABKIA4810GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
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DLK-76
< WIRING DIAGRAM >
INTELLIGENT KEY SYSTEM
ABKIA4823GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
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DLK-84
< BASIC INSPECTION >
INSPECTION AND ADJUSTMENT
INSPECTION AND ADJUSTMENT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPL ACING CONTROL UNIT : Description
INFOID:0000000009461804
Perform the system initialization when replacing BCM, replacing Intelligent Key or registering an additional
Intelligent Key.
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement
INFOID:0000000009461805
Refer to the CONSULT Immobilizer mode and follow the on-screen instructions.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
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DLK-88
< DTC/CIRCUIT DIAGNOSIS >
B2621 INSIDE ANTENNA
B2621 INSIDE ANTENNA
DTC LogicINFOID:0000000009461814
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Select “INTELLIGENT KEY” of “BCM” using CONSULT.
2. Select “INSIDE ANT DIAGNOSI S” in “WORK SUPPORT” mode.
3. Perform inside key antenna (“INSIDE ANT DIAG NOSIS”) on “WORK SUPPORT” of “INTELLIGENT
KEY”.
4. Check BCM for DTC.
Is inside key antenna DTC detected?
YES >> Refer to DLK-88, "Diagnosis Procedure".
NO >> Inside key antenna (rear parcel shelf) is OK.
Diagnosis ProcedureINFOID:0000000009461815
Regarding Wiring Diagram information, refer to DLK-61, "Wiring Diagram".
1.CHECK INSIDE KEY ANTENNA INPUT SIGNAL 1
1. Turn ignition switch OFF.
2. Check signal between BCM harness connector and ground using oscilloscope.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-80, "Removal and Installation".
DTCCONSULT display
description DTC detecting condition Possible cause
B2621 INSIDE ANTENNA An excessive high or low voltage from inside anten-
na (rear parcel shelf) is sent to BCM. • Inside key antenna (rear parcel
shelf)
• Harness or connector [Inside key antenna (rear parcel
shelf) circuit is open or shorted]
(+)
(–) Condition Signal
(Reference value)
BCM
Connector Terminal
M19 100, 99 Ground When Intelligent Key is in the an-
tenna detection area
When Intelligent Key is not in the
antenna detection area
JMKIA3839GB
JMKIA5951GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
Page 857 of 4801

B2621 INSIDE ANTENNADLK-89
< DTC/CIRCUIT DIAGNOSIS >
C
D E
F
G H
I
J
L
M A
B
DLK
N
O P
NO >> GO TO 2.
2.CHECK INSIDE KEY ANTENNA CIRCUIT
1. Disconnect BCM connector and inside key antenna (rear parcel shelf) connector.
2. Check continuity between BCM harness connector and inside key antenna (rear parcel shelf) harness
connector.
3. Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK INSIDE KEY ANTENNA INPUT SIGNAL 2
1. Replace inside key antenna (rear parcel shelf). (New antenna or other antenna)
2. Connect BCM connector and inside key antenna (rear parcel shelf) connector.
3. Check signal between BCM harness connector and ground using oscilloscope.
Is the inspection result normal?
YES >> Replace inside key antenna (rear parcel shelf).
NO >> Replace BCM. Refer to BCS-80, "Removal and Installation"
.
BCM Inside key antenna (rear parcel shelf)
Continuity
Connector Terminal Connector Terminal
M19 100
B29 1
Ye s
99 2
BCM GroundContinuity
Connector Terminal
M19 100
No
99
(+)
(–) Condition Signal
(Reference value)
BCM
Connector Terminal
M19 100, 99 Ground When Intelligent Key is in the an-
tenna detection area
When Intelligent Key is not in the
antenna detection area
JMKIA3839GB
JMKIA5951GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM