2010 INFINITI QX56 Ignition switch

CENTER CONSOLE AREA ANTENNA (REAR)DLK-61
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G H
I
J
L
M A
B
DLK
N
O P
3. Check continuity between Intelligent Key unit harness connector (A) M70 terminals 15, 16 and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness between Intelligent Key unit and center console area antenna (rear).
3.CHECK INSIDE KEY ANTENNA POWER SUPPLY SINGAL
1. Replace center console area antenna (rear). (New antenna or other antenna)
2. Connect Intelligent Key unit connector.
3. Check signal between Intelligent Key unit connector and ground with oscilloscope.
Is the inspection result normal?
YES >> Replace center console area antenna (rear).
NO >> Replace Intelligent Key unit. Refer to SEC-120, "
Removal and Installation".
Intelligent Key
unit connectorTe r m i n a l sCenter console area
antenna (rear) con-
nector Terminals Continuity
A: M70 15
B: M209 1
Ye s
16 2
Item Connector TerminalsContinuity
Intelligent Key unit A: M70 15
Ground No
16
ALKIA0586ZZ
Connector Item Te r m i n a l s
Condition Signal (V)
(Reference value)
(+) (–)
M70 Intelligent
Key unit 15 Ground Ignition
switch is
pushed.
ALKIA0585ZZ
PIIB7441E
Revision: April 20092010 QX56

DLK-62
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
LUGGAGE AREA ANTENNA
LUGGAGE AREA ANTENNA
DescriptionINFOID:0000000005146914
Detects whether Intelligent Key is inside the vehicle.
Component Function CheckINFOID:0000000005146915
1.CHECK INSIDE KEY ANTENNA INPUT SIGNAL
With CONSULT-III
1. Check “ANTENNA” in “Active Test” mode with CONSULT-III.
2. Touch “ROOM ANT1”.
3. When Intelligent Key is in luggage area antenna detection area, hazard lamps flash.
Is the inspection result normal?
YES >> Luggage area antenna is OK.
NO >> Refer to DLK-62, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000005146916
Regarding Wiring Diagram information, refer to DLK-178, "Wiring Diagram — INTELLIGENT KEY SYSTEM —
".
1.CHECK INSIDE KEY ANTENNA POWER SUPPLY SIGNAL
1. Turn ignition switch OFF.
2. Check signal between Intelligent Key unit connector and ground with an oscilloscope.
Is the inspection result normal?
YES >> Luggage area antenna is OK.
NO >> GO TO 2
2.CHECK INSIDE KEY ANTENNA
1. Disconnect Intelligent Key unit connector and luggage area antenna connectors.
2. Check continuity between Intelligent Key unit harness connector (A) M70 terminals 35, 36 and luggage
area antenna harness connector (B) B76 terminals 1, 2.
Test Item Condition Possible cause
ROOM ANT1 An excessive high or low voltage from inside
antenna is sent to the Intelligent Key Unit • Luggage area antenna
• Between Intelligent Key unit and luggage area antenna
Connector Item
Te r m i n a l s
Condition Signal (V)
(Reference value)
(+) (–)
M70 Intelligent
Key unit 35 Ground Ignition
switch is
pushed.
ALKIA0587ZZPIIB7441E
Revision: April 20092010 QX56

LUGGAGE AREA ANTENNADLK-63
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G H
I
J
L
M A
B
DLK
N
O P
3. Check continuity between Intelligent Key unit harness connector (A) M70 terminals 35, 36 and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness between Intelligent Key unit and luggage area antenna.
3.CHECK INSIDE KEY ANTENNA POWER SUPPLY SINGAL
1. Replace luggage area antenna. (New antenna or other antenna)
2. Connect Intelligent Key unit connector.
3. Check signal between Intelligent Key unit connector and ground with oscilloscope.
Is the inspection result normal?
YES >> Replace luggage area antenna.
NO >> Replace Intelligent Key unit. Refer to SEC-120, "
Removal and Installation".
Intelligent Key
unit connectorTe r m i n a l sLuggage area an-
tenna connector Terminals Continuity
A: M70 35
B: B76 1
Ye s
36 2
Item Connector TerminalsContinuity
Intelligent Key unit A: M70 35
Ground No
36
ALKIA0588ZZ
Connector Item Te r m i n a l s
Condition Signal (V)
(Reference value)
(+) (–)
M70 Intelligent
Key unit 35 Ground Ignition
switch is
pushed.
ALKIA0587ZZ
PIIB7441E
Revision: April 20092010 QX56

DLK-64
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
CENTER CONSOLE AREA ANTENNA (FRONT)
CENTER CONSOLE AREA ANTENNA (FRONT)
DescriptionINFOID:0000000005146917
Detects whether Intelligent Key is inside the vehicle.
Component Function CheckINFOID:0000000005146918
1.CHECK INSIDE KEY ANTENNA INPUT SIGNAL
With CONSULT-III
1. Check “ANTENNA” in “Active Test” mode with CONSULT-III.
2. Touch “ROOM ANT2”.
3. When Intelligent Key is in center console area antenna (front) detection area, hazard lamps flash.
Is the inspection result normal?
YES >> Center console area antenna (front) is OK.
NO >> Refer to DLK-64, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000005146919
Regarding Wiring Diagram information, refer to DLK-178, "Wiring Diagram — INTELLIGENT KEY SYSTEM —
".
1.CHECK INSIDE KEY ANTENNA POWER SUPPLY SIGNAL
1. Turn ignition switch OFF.
2. Check signal between Intelligent Key unit connector and ground with an oscilloscope.
Is the inspection result normal?
YES >> Center console area antenna (front) is OK.
NO >> GO TO 2
2.CHECK INSIDE KEY ANTENNA
1. Disconnect Intelligent Key unit connector and c enter console area antenna (front) connectors.
2. Check continuity between Intelligent Key unit harnes s connector (A) M70 terminals 13, 14 and center con-
sole area antenna (front) harness connector (B) M210 terminals 1, 2.
Test Item Condition Possible cause
ROOM ANT2 An excessive high or low voltage from inside
antenna is sent to the Intelligent Key Unit • Center console area antenna (front)
• Between Intelligent Key unit and center console area an-
tenna (front)
Connector Item Te r m i n a l s
Condition Signal (V)
(Reference value)
(+) (–)
M70 Intelligent
Key unit 13 Ground Ignition
switch is
pushed.
ALKIA0583ZZPIIB7441E
Revision: April 20092010 QX56

CENTER CONSOLE AREA ANTENNA (FRONT)DLK-65
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G H
I
J
L
M A
B
DLK
N
O P
3. Check continuity between Intelligent Key unit harness connector (A) M70 terminals 13, 14 and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness between Intelligent Key unit and center console area antenna (front).
3.CHECK INSIDE KEY ANTENNA POWER SUPPLY SINGAL
1. Replace center console area antenna (front). (New antenna or other antenna)
2. Connect Intelligent Key unit connector.
3. Check signal between Intelligent Key unit connector and ground with oscilloscope.
Is the inspection result normal?
YES >> Replace center console area antenna (front).
NO >> Replace Intelligent Key unit. Refer to SEC-120, "
Removal and Installation".
Intelligent Key
unit connectorTe r m i n a l sCenter console area
antenna (front) con-
nector Terminals Continuity
A: M70 13
B: M210 1
Ye s
14 2
Item Connector TerminalsContinuity
Intelligent Key unit A: M70 13
Ground No
14
ALKIA0584ZZ
Connector Item Te r m i n a l s
Condition Signal (V)
(Reference value)
(+) (–)
M70 Intelligent
Key unit 13 Ground Ignition
switch is
pushed.
ALKIA0583ZZ
PIIB7441E
Revision: April 20092010 QX56

DLK-66
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
OVERHEAD CONSOLE AREA ANTENNA
OVERHEAD CONSOLE AREA ANTENNA
DescriptionINFOID:0000000005146920
Detects whether Intelligent Key is inside the vehicle.
Component Function CheckINFOID:0000000005146921
1.CHECK INSIDE KEY ANTENNA INPUT SIGNAL
With CONSULT-III
1. Check “ANTENNA” in “Active Test” mode with CONSULT-III.
2. Touch “ROOM ANT2”.
3. When Intelligent Key is in overhead consol e area antenna detection area, hazard lamps flash.
Is the inspection result normal?
YES >> Overhead console area antenna is OK.
NO >> Refer to DLK-66, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000005146922
Regarding Wiring Diagram information, refer to DLK-178, "Wiring Diagram — INTELLIGENT KEY SYSTEM —
".
1.CHECK INSIDE KEY ANTENNA POWER SUPPLY SIGNAL
1. Turn ignition switch OFF.
2. Check signal between Intelligent Key unit connector and ground with an oscilloscope.
Is the inspection result normal?
YES >> Overhead console area antenna is OK.
NO >> GO TO 2
2.CHECK INSIDE KEY ANTENNA
1. Disconnect Intelligent Key unit connector and overhead console area antenna connectors.
2. Check continuity between Intelligent Key unit harness connector (A) M70 terminals 33, 34 and overhead console area antenna harness connector (B) R210 terminals 1, 2.
Test Item Condition Possible cause
ROOM ANT2 An excessive high or low voltage from inside
antenna is sent to the Intelligent Key Unit • Overhead console area antenna
• Between Intelligent Key unit and overhead console area
antenna
Connector Item Te r m i n a l s
Condition Signal (V)
(Reference value)
(+) (–)
M70 Intelligent
Key unit 33 Ground Ignition
switch is
pushed.
ALKIA0589ZZPIIB7441E
Revision: April 20092010 QX56

OVERHEAD CONSOLE AREA ANTENNADLK-67
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G H
I
J
L
M A
B
DLK
N
O P
3. Check continuity between Intelligent Key unit harness connector (A) M70 terminals 33, 34 and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness between Intelligent Key unit and overhead console area antenna.
3.CHECK INSIDE KEY ANTENNA POWER SUPPLY SINGAL
1. Replace overhead console area antenna. (New antenna or other antenna)
2. Connect Intelligent Key unit connector.
3. Check signal between Intelligent Key unit connector and ground with oscilloscope.
Is the inspection result normal?
YES >> Replace overhead console area antenna.
NO >> Replace Intelligent Key unit. Refer to SEC-120, "
Removal and Installation".
Intelligent Key
unit connectorTe r m i n a l sOverhead console
area antenna con-
nector Terminals Continuity
A: M70 33
B: R210 1
Ye s
34 2
Item Connector TerminalsContinuity
Intelligent Key unit A: M70 33
Ground No
34
ALKIA0590ZZ
Connector Item Te r m i n a l s
Condition Signal (V)
(Reference value)
(+) (–)
M70 Intelligent
Key unit 33 Ground Ignition
switch is
pushed.
ALKIA0589ZZ
PIIB7441E
Revision: April 20092010 QX56

DLK-68
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
INTELLIGENT KEY UNIT
INTELLIGENT KEY UNIT
: Diagnosis ProcedureINFOID:0000000005146923
Regarding Wiring Diagram information, refer to DLK-178, "Wiring Diagram — INTELLIGENT KEY SYSTEM —
".
1.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect Intelligent Key unit connector.
3. Check voltage between Intelligent Key unit harness connector M70 terminals 6, 11 and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace Intelligent Key unit power supply circuit.
2.CHECK GROUND CIRCUIT
Check continuity between Intelligent Key unit harness connector
M70 terminal 12 and ground.
Is the inspection result normal?
YES >> Power supply and ground circuits are OK.
NO >> Repair or replace the Intelligent Key unit ground circuit.
BCM (BODY CONTROL MODULE)
BCM (BODY CONTROL MODULE) : Diagnosis ProcedureINFOID:0000000005380580
Regarding Wiring Diagram information, refer to BCS-49, "Wiring Diagram".
1. CHECK FUSES AND FUSIBLE LINK
Check that the following fuses and fusible link are not blown.
Is the fuse blown?
Connector Terminals Ignition switch position
M70 (+) (–) OFF
ON
6 Ground 0V Battery voltage
11 Battery voltage Battery voltage
WIIA1171E
12 - Ground : Continuity should exist.
WIIA1172E
Terminal No. Signal nameFuses and fusible link No.
57 Battery power supply 22 (15A)
70 F (50A)
11 Ignition ACC or ON 4 (10A)
38 Ignition ON or START 59 (10A)
Revision: April 20092010 QX56