2011 INFINITI QX56 ground

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

DLK-112
< DTC/CIRCUIT DIAGNOSIS >
B2627 OUTSIDE ANTENNA
B2627 OUTSIDE ANTENNA
DTC LogicINFOID:0000000006225916
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 (passenger side) is OK.
Diagnosis ProcedureINFOID:0000000006225917
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 (passenger side) connector.
2. Check continuity between BCM harness connector and outside key antenna (passenger side) harness connector.
DTC CONSULT-III display
description DTC detecting condition Possible cause
B2627 OUTSIDE ANTENNA An excessive high or low voltage from outside key
antenna (passenger side) is sent to BCM  Outside key antenna (passenger
side)
 Between BCM ™Outside key an-
tenna (passenger side)
(+)
(–) Condition Signal
(Reference value)
BCM
Connector Terminal
Passenger
side M71 80, 81 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

B2627 OUTSIDE ANTENNADLK-113
< 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 (passenger side). (New antenna or other antenna)
2. Connect BCM connector and outside key antenna (passenger side) connector.
3. Check signal between BCM harness connector and ground using oscilloscope.
Is the inspection result normal?
YES >> Replace outside key antenna (passenger side).
NO >> Replace BCM. Refer to BCS-81, "
Removal and Installation".
BCM Outside key antenna (passenger side)
Continuity
Connector Terminal Connector Terminal
M71 80
D32 1
Existed
81 2
BCM GroundContinuity
Connector Terminal
M71 80
Not existed
81
(+)
(–) Condition Signal
(Reference value)
BCM
Connector Terminal
Passenger
side M71 80, 81 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-114
< DTC/CIRCUIT DIAGNOSIS >
B2628 OUTSIDE ANTENNA
B2628 OUTSIDE ANTENNA
DTC LogicINFOID:0000000006225918
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 (back door) is OK.
Diagnosis ProcedureINFOID:0000000006225919
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 (back door) connector.
2. Check continuity between BCM harness connector and outside key antenna (back door) harness connec- tor.
DTC CONSULT-III display
description DTC detecting condition Possible cause
B2628 OUTSIDE ANTENNA An excessive high or low voltage from outside key
antenna (back door) is sent to BCM  Outside key antenna (back door)
 Between BCM – Outside key an-
tenna (back door)
(+)
(–) Condition Signal
(Reference value)
BCM
Connector Terminal
Back door M71 82, 83 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

B2628 OUTSIDE ANTENNADLK-115
< 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 (back door). (New antenna or other antenna)
2. Connect BCM and outside key antenna (back door) connector.
3. Check signal between BCM harness connector and ground using oscilloscope.
Is the inspection result normal?
YES >> Replace outside key antenna (back door).
NO >> Replace BCM. Refer to BCS-81, "
Removal and Installation".
BCM Outside key antenna (back door)
Continuity
Connector Terminal Connector Terminal
M71 82
D153 1
Existed
83 2
BCM GroundContinuity
Connector Terminal
M71 82
Not existed
83
(+)
(–) Condition Signal
(Reference value)
BCM
Connector Terminal
Back door M71 82, 83 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