2011 INFINITI QX56 key

DLK-104
< DTC/CIRCUIT DIAGNOSIS >
B2621 INSIDE ANTENNA
B2621 INSIDE ANTENNA
DTC LogicINFOID:0000000006225908
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Select “INTELLIGE NT KEY” of “BCM” using CONSULT-III.
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-104, "Diagnosis Procedure".
NO >> Inside key antenna (instrument center) is OK.
Diagnosis ProcedureINFOID:0000000006225909
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-81, "Removal and Installation".
NO >> GO TO 2.
2.CHECK INSIDE KEY ANTENNA CIRCUIT
1. Disconnect BCM connector and inside key antenna (instrument center) connector.
DTCCONSULT-III display
description DTC detecting condition Possible cause
B2621 INSIDE ANTENNA An excessive high or low voltage from inside anten-
na (instrument center) is sent to BCM  Inside key antenna (instrument
center)
 Between BCM ™Inside key anten-
na (instrument center)
(+)
(–) Condition Signal
(Reference value)
BCM
Connector Terminal
Instrument center M71 84, 85 Ground When Intelligent Key is in the
antenna detection area
When Intelligent Key is not in
the antenna detection area
JMKIA3839GB
JMKIA3838GB
Revision: 2010 May2011 QX56

B2621 INSIDE ANTENNADLK-105
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
DLK
N
O P
2. Check continuity between BCM harness connector and inside key antenna (instrument center) 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 (instrument center). (New antenna or other antenna)
2. Connect BCM connector and inside key antenna (instrument center) connector.
3. Check signal between BCM harness connector and ground using oscilloscope.
Is the inspection result normal?
YES >> Replace inside key antenna (instrument center).
NO >> Replace BCM. Refer to BCS-81, "
Removal and Installation".
BCM Inside key antenna (instrument center)
Continuity
Connector Terminal Connector Terminal
M71 84
M105 1
Existed
85 2
BCM GroundContinuity
Connector Terminal
M71 84
Not existed
85
(+)
(–) Condition Signal
(Reference value)
BCM
Connector Terminal
Instrument center M71 84, 85 Ground When Intelligent Key is in
the antenna detection area
When Intelligent Key is not
in the antenna detection
area
JMKIA3839GB
JMKIA3838GB
Revision: 2010 May2011 QX56

DLK-106
< DTC/CIRCUIT DIAGNOSIS >
B2622 INSIDE ANTENNA
B2622 INSIDE ANTENNA
DTC LogicINFOID:0000000006225910
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Select “INTELLIGE NT KEY” of “BCM” using CONSULT-III.
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-106, "Diagnosis Procedure".
NO >> Inside key antenna (console) is OK.
Diagnosis ProcedureINFOID:0000000006225911
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-81, "Removal and Installation".
NO >> GO TO 2.
2.CHECK INSIDE KEY ANTENNA CIRCUIT
1. Disconnect BCM connector and inside key antenna (console) connector.
2. Check continuity between BCM harness connector and inside key antenna (console) harness connector.
DTC CONSULT-III display
description DTC detecting condition Possible cause
B2622 INSIDE ANTENNA An excessive high or low voltage from inside anten-
na (console) is sent to BCM  Inside key antenna (console)
 Between BCM
™Inside key anten-
na (console)
(+)
(–) Condition Signal
(Reference value)
BCM
Connector Terminal
Console M71 86, 87 Ground When Intelligent Key is in the an-
tenna detection area
When Intelligent Key is not in the
antenna detection area
JMKIA3839GB
JMKIA3838GB
Revision: 2010 May2011 QX56

B2622 INSIDE ANTENNADLK-107
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
DLK
N
O P
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 (console). (New antenna or other antenna)
2. Connect BCM connector and inside key antenna (console) connector.
3. Check signal between BCM harness connector and ground using oscilloscope.
Is the inspection result normal?
YES >> Replace inside key antenna (console).
NO >> Replace BCM. Refer to BCS-81, "
Removal and Installation".
BCM Inside key antenna (console)
Continuity
Connector Terminal Connector Terminal
M71 86
M107 1
Existed
87 2
BCM GroundContinuity
Connector Terminal
M71 86
Not existed
87
(+)
(–) Condition Signal
(Reference value)
BCM
Connector Terminal
Console M71 86, 87 Ground When Intelligent Key is in the an-
tenna detection area
When Intelligent Key is not in the
antenna detection area
JMKIA3839GB
JMKIA3838GB
Revision: 2010 May2011 QX56

DLK-108
< DTC/CIRCUIT DIAGNOSIS >
B2623 INSIDE ANTENNA
B2623 INSIDE ANTENNA
DTC LogicINFOID:0000000006225912
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Select “INTELLIGE NT KEY” of “BCM” using CONSULT-III.
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-108, "Diagnosis Procedure".
NO >> Inside key antenna (luggage room) is OK.
Diagnosis ProcedureINFOID:0000000006225913
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-81, "Removal and Installation".
NO >> GO TO 2.
2.CHECK INSIDE KEY ANTENNA CIRCUIT
1. Disconnect BCM connector and inside key antenna (luggage room) connector.
2. Check continuity between BCM harness connector and inside key antenna (luggage room) harness con- nector.
DTC CONSULT-III display
description DTC detecting condition Possible cause
B2622 INSIDE ANTENNA An excessive high or low voltage from inside anten-
na (luggage room) is sent to BCM  Inside key antenna (luggage room)
 Between BCM
™Inside key anten-
na (luggage room)
(+)
(–) Condition Signal
(Reference value)
BCM
Connector Terminal
Luggage
Room M71 88, 89 Ground When Intelligent Key is in the an-
tenna detection area
When Intelligent Key is not in the
antenna detection area
JMKIA3839GB
JMKIA3838GB
Revision: 2010 May2011 QX56

B2623 INSIDE ANTENNADLK-109
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
DLK
N
O P
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 (luggage room). (New antenna or other antenna)
2. Connect BCM connector and inside key antenna (luggage room) connector.
3. Check signal between BCM harness connector and ground using oscilloscope.
Is the inspection result normal?
YES >> Replace inside key antenna (luggage room).
NO >> Replace BCM. Refer to BCS-81, "
Removal and Installation".
BCM Inside key antenna (luggage room)
Continuity
Connector Terminal Connector Terminal
M71 88
B13 1
Existed
89 2
BCM GroundContinuity
Connector Terminal
M71 88
Not existed
89
(+)
(–) Condition Signal
(Reference value)
BCM
Connector Terminal
Luggage
Room M71 88, 89 Ground When Intelligent Key is in the an-
tenna detection area
When Intelligent Key is not in the
antenna detection area
JMKIA3839GB
JMKIA3838GB
Revision: 2010 May2011 QX56

DLK-110
< DTC/CIRCUIT DIAGNOSIS >
B2626 OUTSIDE ANTENNA
B2626 OUTSIDE ANTENNA
DTC LogicINFOID:0000000006225914
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Check “Self Diagnostic Result” m ode of “BCM” using CONSULT-III.
Is DTC detected?
YES >> Refer to DLK-108, "Diagnosis Procedure".
NO >> Outside key antenna (driver side) is OK.
Diagnosis ProcedureINFOID:0000000006225915
1.CHECK OUTSIDE 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-81, "Removal and Installation".
NO >> GO TO 2.
2.CHECK OUTSIDE KEY ANTENNA CIRCUIT
1. Disconnect BCM connector and outside key antenna (driver side) connector.
2. Check continuity between BCM harness connector and outside key antenna (driver side) harness connec- tor.
DTC CONSULT-III display
description DTC detecting condition Possible cause
B2626 OUTSIDE ANTENNA An excessive high or low voltage from outside key
antenna (driver side
) is sent to BCM  Outside key antenna (driver side)
 Between BCM
™Outside key an-
tenna (driver side)
(+)
(–) Condition Signal
(Reference value)
BCM
Connector Terminal
Driver side M71 78, 79 Ground When Intelligent Key is in the
antenna detection area
When Intelligent Key is not in
the antenna detection area
JMKIA3839GB
JMKIA3838GB
Revision: 2010 May2011 QX56

B2626 OUTSIDE ANTENNADLK-111
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
DLK
N
O P
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 OUTSIDE KEY ANTENNA INPUT SIGNAL 2
1. Replace outside key antenna (driver side). (New antenna or other antenna)
2. Connect BCM connector and outside key antenna (driver side) connector.
3. Check signal between BCM harness connector and ground using oscilloscope.
Is the inspection result normal?
YES >> Replace outside key antenna (driver side).
NO >> Replace BCM. Refer to BCS-81, "
Removal and Installation".
BCM Outside key antenna (driver side)
Continuity
Connector Terminal Connector Terminal
M71 78
D12 1
Existed
79 2
BCM GroundContinuity
Connector Terminal
M71 78
Not existed
79
(+)
(–) Condition Signal
(Reference value)
BCM
Connector Terminal
Driver side M71 78, 79 Ground When Intelligent Key is in
the antenna detection area
When Intelligent Key is not
in the antenna detection
area
JMKIA3839GB
JMKIA3838GB
Revision: 2010 May2011 QX56