Air INFINITI QX56 2010 Factory Service Manual
[x] Cancel search | Manufacturer: INFINITI, Model Year: 2010, Model line: QX56, Model: INFINITI QX56 2010Pages: 4210, PDF Size: 81.91 MB
Page 906 of 4210
![INFINITI QX56 2010 Factory Service Manual DLK-72
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR SWITCH
Is the inspection result normal?
YES >> Door switch circuit is OK.
NO >> GO TO 2
2.CHECK DOOR SWITCH CIRCUIT
1. Turn ignition sw](/img/42/57032/w960_57032-905.png "INFINITI QX56 2010 Factory Service Manual DLK-72
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR SWITCH
Is the inspection result normal?
YES >> Door switch circuit is OK.
NO >> GO TO 2
2.CHECK DOOR SWITCH CIRCUIT
1. Turn ignition sw")
DLK-72
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR SWITCH
Is the inspection result normal?
YES >> Door switch circuit is OK.
NO >> GO TO 2
2.CHECK DOOR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door switch and BCM.
3. Check continuity between BCM connector (A) M18, M19 terminals 12, 13, 43, 47, 48 and door switch con-
nector (B) B8 (Front LH), B108 (Front RH), B18 (Rear LH), B116 (Rear RH) terminal 2 or back door latch
connector (C) D503 terminal 7.
4. Check continuity between door switch connector (B) B8 (Front
LH), B108 (Front RH), B18 (Rear LH), B116 (Rear RH) terminal
2 or back door latch connector (C) D503 terminal 7 and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3.CHECK DOOR SWITCHES
• Disconnect door switch harness.
• Check continuity between door switch connector terminals.
Connec- tor Item Te r m i n a l s
ConditionVoltage (V)
(Approx.)
( + ) ( – )
M19 Back door
switch/latch 43
Ground Open
↓
Closed 0
↓
Battery voltage
Front door
switch LH 47
Rear door switch LH 48
M18 Front door
switch RH 12
Rear door
switch RH 13
LIIA1041E
2 - 47
:Continuity should exist
2 - 12 :Continuity should exist
2 - 48 :Continuity should exist
2 - 13 :Continuity should exist
7 - 43 :Continuity should exist
2 - Ground :Continuity should not exist
7 - Ground :Continuity should not exist
ALKIA0689ZZ
Revision: April 20092010 QX56
Page 907 of 4210
![INFINITI QX56 2010 Factory Service Manual DOOR SWITCHDLK-73
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
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B
DLK
N
O P
Is the inspection result normal?
YES >> Door switch circuit is OK.
NO >> (Front and rear doors](/img/42/57032/w960_57032-906.png "INFINITI QX56 2010 Factory Service Manual DOOR SWITCHDLK-73
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
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DLK
N
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Is the inspection result normal?
YES >> Door switch circuit is OK.
NO >> (Front and rear doors")
DOOR SWITCHDLK-73
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
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B
DLK
N
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Is the inspection result normal?
YES >> Door switch circuit is OK.
NO >> (Front and rear doors) Replace door switch.
NO >> (Back door) GO TO 4
4.CHECK BACK DOOR SWITCH CIRCUIT
• Check continuity between door switch connector terminal and ground.
Is the inspection result normal?
YES >> Replace back door switch.
NO >> Repair or replace harness.
Switch Terminals Condition Continuity
A: Door switch
(front and rear) 2 – GroundOpen
Yes
Closed No
B: Back door switch 7 – Ground Open
Yes
Closed No
ALKIA0690ZZ
Connector TerminalsContinuity
Back door switch 8 – GroundYes
ALKIA0691ZZ
Revision: April 20092010 QX56
Page 909 of 4210
![INFINITI QX56 2010 Factory Service Manual DOOR LOCK AND UNLOCK SWITCHDLK-75
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
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B
DLK
N
O P
Is the inspection result normal?
YES >> Door lock and unlock switch circuit is](/img/42/57032/w960_57032-908.png "INFINITI QX56 2010 Factory Service Manual DOOR LOCK AND UNLOCK SWITCHDLK-75
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
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B
DLK
N
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Is the inspection result normal?
YES >> Door lock and unlock switch circuit is")
DOOR LOCK AND UNLOCK SWITCHDLK-75
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
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B
DLK
N
O P
Is the inspection result normal?
YES >> Door lock and unlock switch circuit is OK.
NO >> GO TO 2
2.CHECK BCM OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Using the vehicle operational Intelligent Key, pr ess and hold the UNLOCK button for more than 3 sec-
onds.
Is the inspection result normal?
YES >> GO TO 3
NO >> Replace BCM. Refer to BCS-59, "
Removal and Installation".
3.CHECK DOOR LOCK/UNLOCK SWITCH GROUND HARNESS
1. Disconnect main power window and door lock/unlock switch.
2. Check continuity between main power window and door lock/ unlock switch connector D8 terminal 17 and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace harness.
4.CHECK POWER WINDOW SERIAL LINK CIRCUIT
1. Disconnect BCM.
2. Check continuity between BCM connector M18 term inal 22 and main power window and door lock/unlock
switch connector D7 terminal 14.
Connector Te r m i n a l
Voltage (V)
( + ) ( – )
M18 22 Ground
PIIA6379EPIIA1297E
The front windows should be lowered.
17 - Ground : Continuity should exist.
LIIA0392E
Revision: April 20092010 QX56
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![INFINITI QX56 2010 Factory Service Manual DLK-76
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR LOCK AND UNLOCK SWITCH
3. Check continuity between BCM connector M18 terminal 22 and ground.
Is the inspection result normal?
YES >> Re](/img/42/57032/w960_57032-909.png "INFINITI QX56 2010 Factory Service Manual DLK-76
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR LOCK AND UNLOCK SWITCH
3. Check continuity between BCM connector M18 terminal 22 and ground.
Is the inspection result normal?
YES >> Re")
DLK-76
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR LOCK AND UNLOCK SWITCH
3. Check continuity between BCM connector M18 terminal 22 and ground.
Is the inspection result normal?
YES >> Replace main power window and door lock/unlock switch.
NO >> Repair or replace harness.
PASSENGER SIDE
PASSENGER SIDE : DescriptionINFOID:0000000005146932
Transmits door lock/unlock operation to BCM.
PASSENGER SIDE : Component Function CheckINFOID:0000000005146933
1.CHECK FUNCTION
With CONSULT-III
Check CDL LOCK SW, CDL UNLOCK SW in Data Monitor mode with CONSULT-III.
Is the inspection result normal?
YES >> Door lock and unlock switch is OK.
NO >> Refer to DLK-76, "
PASSENGER SIDE : Diagnosis Procedure".
PASSENGER SIDE : Diagnosis ProcedureINFOID:0000000005146934
Regarding Wiring Diagram information, refer to DLK-157, "Wiring Diagram — POWER DOOR LOCK SYS-
TEM —".
22 - 14
: Continuity should exist.
LIIA0394E
22 - Ground: Continuity should not exist.
LIIA2359E
Monitor item Condition
CDL LOCK SW LOCK
: ON
UNLOCK : OFF
CDL UNLOCK SW LOCK
: OFF
UNLOCK : ON
Revision: April 20092010 QX56
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![INFINITI QX56 2010 Factory Service Manual DLK-78
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR LOCK AND UNLOCK SWITCH
2. Check continuity between power window and door lock/unlock
switch RH connector D105 terminal 11 and ground
Is](/img/42/57032/w960_57032-911.png "INFINITI QX56 2010 Factory Service Manual DLK-78
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR LOCK AND UNLOCK SWITCH
2. Check continuity between power window and door lock/unlock
switch RH connector D105 terminal 11 and ground
Is")
DLK-78
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR LOCK AND UNLOCK SWITCH
2. Check continuity between power window and door lock/unlock
switch RH connector D105 terminal 11 and ground
Is the inspection normal?
YES >> GO TO 4
NO >> Repair or replace harness.
4.CHECK POWER WINDOW SERIAL LINK CIRCUIT
1. Disconnect BCM.
2. Check continuity between BCM connector M18 terminal 22 and power window and door lock/unlock switch RH connector D105 terminal 16.
3. Check continuity between BCM connector M18 terminal 22 and ground.
Is the inspection normal?
YES >> Replace power window and door lock/unlock switch RH.
NO >> Repair or replace harness. 11 - Ground
: Continuity should exist.
LIIA1140E
22 - 16 : Continuity should exist.
LIIA0395E
22 - ground: Continuity should not exist.
LIIA2359E
Revision: April 20092010 QX56
Page 914 of 4210
![INFINITI QX56 2010 Factory Service Manual DLK-80
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
KEY CYLINDER SWITCH
YES >> Key cylinder switch signal is OK.
NO >> GO TO 2
2.CHECK DOOR KEY CYLINDER SWITCH LH GROUND HARNESS
1. Turn igniti](/img/42/57032/w960_57032-913.png "INFINITI QX56 2010 Factory Service Manual DLK-80
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
KEY CYLINDER SWITCH
YES >> Key cylinder switch signal is OK.
NO >> GO TO 2
2.CHECK DOOR KEY CYLINDER SWITCH LH GROUND HARNESS
1. Turn igniti")
DLK-80
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
KEY CYLINDER SWITCH
YES >> Key cylinder switch signal is OK.
NO >> GO TO 2
2.CHECK DOOR KEY CYLINDER SWITCH LH GROUND HARNESS
1. Turn ignition switch OFF.
2. Disconnect front door lock assembly LH (key cylinder switch).
3. Check continuity between front door lock assembly LH (key cyl- inder switch) connector (A) D14 terminal 5 and body ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3.CHECK DOOR KEY CYLINDER SWITCH LH
Check continuity between front door lock assembly LH (key cylinder
switch) terminals.
Is the inspection result normal?
YES >> GO TO 4
NO >> Replace front door lock assembly LH (key cylinder switch). Refer to DLK-242, "
Removal and
Installation".
4.CHECK DOOR KEY CYLINDER HARNESS
Check continuity between main power window and door lock/unlock
switch connector (A) D7 terminals 4, 6 and front door lock assembly
LH (key cylinder switch) connector (B) D14 terminals 1, 6 and body
ground.
Is the inspection result normal?
YES >> Replace main power window and door lock/unlock switch.
NO >> Repair or replace harness.
Connector TerminalsContinuity
D14 5 – Ground Yes
WIIA0813E
TerminalsCondition Continuity
1 – 5 Key is turned to UNLOCK or neutral.
No
Key is turned to LOCK. Yes
5 – 6 Key is turned to LOCK or neutral.
No
Key is turned to UNLOCK. Yes
LIIA1573E
Connector Terminals Connector Terminals Continuity
A: Main
power win- dow and
door lock/ unlock switch 4B: Front
door lock
assembly LH (key
cylinder switch) 1Y
es
66Y es
4, 6 Ground No
WIIA0814E
Revision: April 20092010 QX56
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![INFINITI QX56 2010 Factory Service Manual DLK-82
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
FRONT DOOR LOCK ACTUATOR LH (DOOR UNLOCK SENSOR)
NO >> Repair or replace harness between Intelligent Key unit and front door lock assembly L](/img/42/57032/w960_57032-915.png "INFINITI QX56 2010 Factory Service Manual DLK-82
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
FRONT DOOR LOCK ACTUATOR LH (DOOR UNLOCK SENSOR)
NO >> Repair or replace harness between Intelligent Key unit and front door lock assembly L")
DLK-82
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
FRONT DOOR LOCK ACTUATOR LH (DOOR UNLOCK SENSOR)
NO >> Repair or replace harness between Intelligent Key unit and front door lock assembly LH (door
unlock sensor).
3.CHECK UNLOCK SENSOR GROUND CIRCUIT
Check continuity between front door lock assembly LH (door unlock sensor) harness connector D14 terminal 5
and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace harness.
4.CHECK INTELLIGENT KEY UNIT OUTPUT SIGNAL
1. Connect Intelligent Key unit harness connector.
2. Check voltage between Intelligent Key unit harness connector M70 terminal 28 and ground.
Is the inspection result normal?
YES >> Refer to DLK-82, "Component Inspection".
NO >> Replace Intelligent Key unit. Refer to SEC-120,
"Removal and Installation".
Component InspectionINFOID:0000000005146941
1.CHECK DOOR UNLOCK SENSOR
Check door unlock sensor.
Is the inspection result normal?
YES >> Inspection End.
NO >> Replace front lock assembly LH (door unlock sensor). Refer to DLK-242, "
Removal and Installa-
tion".
5 – Ground : Continuity should exist.
WIIA1192E
28 – Ground
: Approx. 5V
WIIA1193E
Te r m i n a l
Front door lock assembly LH condition Continuity
Front door lock assembly LH
45 Unlock
Yes
Lock No
Revision: April 20092010 QX56
Page 918 of 4210
![INFINITI QX56 2010 Factory Service Manual DLK-84
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR REQUEST SWITCH
3. Check continuity between Intelligent Key unit harne
ss connector (A) M70 terminals 5 (driver door), 25
(passenger doo](/img/42/57032/w960_57032-917.png "INFINITI QX56 2010 Factory Service Manual DLK-84
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR REQUEST SWITCH
3. Check continuity between Intelligent Key unit harne
ss connector (A) M70 terminals 5 (driver door), 25
(passenger doo")
DLK-84
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR REQUEST SWITCH
3. Check continuity between Intelligent Key unit harne
ss connector (A) M70 terminals 5 (driver door), 25
(passenger door) and front door request switch harness connector (B) D16 (LH), D116 (RH) terminal 1.
4. Check continuity between Inte lligent Key unit harness connector
(A) M70 terminals 5 (driver door), 25 (passenger door) and
ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness between Intelligent Key unit and front door request switch.
3.CHECK FRONT DOOR REQUEST SWITCH GROUND CIRCUIT
Check continuity between front door request switch harness connector D16 (driver door), D116 (passenger
door) terminal 2 and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace door request switch ground circuit.
4.CHECK FRONT DOOR REQUEST SWITCH OPERATION
Refer to DLK-85, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 5
NO >> Replace front door request switch.
5.CHECK FRONT DOOR REQUEST SWITCH SIGNAL
1. Connect Intelligent Key unit connector.
2. Check voltage between Intelligent Key unit harness connector M70 terminals 5, 25 and ground.
Is the inspection result normal?
YES >> Refer to GI-38, "Intermittent Incident".
NO >> Replace Intelligent Key unit. Refer to SEC-120, "
Removal and Installation".
Driver side 5 - 1 : Continuity should exist.
Passenger side 25 - 1 : Continuity should exist.
5 - Ground
: Continuity should not exist.
25 - Ground : Continuity should not exist.
PIIB6614E
2 - Ground : Continuity should exist.
PIIB6616E
Connector Item Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (–)
M70 Front door re-
quest switch
LH
5
Ground Door request
switch is pressed
↓
Door request switch is re-
leased 0
↓
Battery voltage
Front door re-
quest switch
RH 25
WIIA1183E
Revision: April 20092010 QX56
Page 921 of 4210
![INFINITI QX56 2010 Factory Service Manual DOOR LOCK ACTUATORDLK-87
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
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B
DLK
N
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NO >> Repair or replace harness.
3.CHECK DOOR LOCK ACTUATOR HARNESS
1. Disconnect BCM a](/img/42/57032/w960_57032-920.png "INFINITI QX56 2010 Factory Service Manual DOOR LOCK ACTUATORDLK-87
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
C
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B
DLK
N
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NO >> Repair or replace harness.
3.CHECK DOOR LOCK ACTUATOR HARNESS
1. Disconnect BCM a")
DOOR LOCK ACTUATORDLK-87
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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N
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NO >> Repair or replace harness.
3.CHECK DOOR LOCK ACTUATOR HARNESS
1. Disconnect BCM and front door lock assembly LH (actuator).
2. Check continuity between BCM connector M20 terminals 59, 65 and ground.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-59, "Removal and Installation".
NO >> Repair or replace harness.
PASSENGER SIDE
PASSENGER SIDE : DescriptionINFOID:0000000005146949
Locks/unlocks the door with the signal from BCM.
PASSENGER SIDE : Co mponent Function CheckINFOID:0000000005146950
1.CHECK FUNCTION
1. Use CONSULT-III to perform Active Test DOOR LOCK.
2. Touch “ALL LOCK” or “ALL UNLOCK” to check that it works normally.
Is the inspection result normal?
YES >> Door lock actuator is OK.
NO >> Refer to DLK-87, "
PASSENGER SIDE : Diagnosis Procedure".
PASSENGER SIDE : Dia gnosis ProcedureINFOID:0000000005146951
Regarding Wiring Diagram information, refer to DLK-157, "Wiring Diagram — POWER DOOR LOCK SYS-
TEM —".
1.CHECK FRONT DOOR LOCK ACTUATOR RH SIGNAL
1. Turn ignition switch OFF.
2. Check voltage between BCM connector M20 terminals 65, 66 and ground.
Is the inspection result normal?
YES >> GO TO 2
Connector Terminals Continuity
M20 59
Ground No
65 No
ALKIA0633ZZ
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M20 65
Ground Door lock/unlock switch is
turned to LOCK
0
→ Battery voltage
for 300 ms
66 Door lock/unlock switch is
turned to UNLOCK 0
→ Battery voltage
for 300 ms
LIIA1048E
Revision: April 20092010 QX56
Page 922 of 4210
![INFINITI QX56 2010 Factory Service Manual DLK-88
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR LOCK ACTUATOR
NO >> GO TO 3
2.CHECK DOOR LOCK ACTUATOR HARNESS
1. Disconnect BCM and front door lock actuator RH.
2. Check continuity b](/img/42/57032/w960_57032-921.png "INFINITI QX56 2010 Factory Service Manual DLK-88
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR LOCK ACTUATOR
NO >> GO TO 3
2.CHECK DOOR LOCK ACTUATOR HARNESS
1. Disconnect BCM and front door lock actuator RH.
2. Check continuity b")
DLK-88
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR LOCK ACTUATOR
NO >> GO TO 3
2.CHECK DOOR LOCK ACTUATOR HARNESS
1. Disconnect BCM and front door lock actuator RH.
2. Check continuity between BCM connector (A) M20 terminals 65, 66 and front door lock actuator RH (B) D114 terminals 2, 3.
Is the inspection result normal?
YES >> Replace front door lock actuator RH. Refer to DLK-242, "Removal and Installation".
NO >> Repair or replace harness.
3.CHECK DOOR LOCK ACTUATOR HARNESS
1. Disconnect BCM and front door lock actuator RH.
2. Check continuity between BCM connector M19 terminals 65, 66 and ground.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-59, "Removal and Installation".
NO >> Repair or replace harness.
REAR LH
REAR LH : DescriptionINFOID:0000000005146952
Locks/unlocks the door with the signal from BCM.
REAR LH : Component Function CheckINFOID:0000000005146953
1.CHECK FUNCTION
1. Use CONSULT-III to perform Active Test "DOOR LOCK".
2. Touch “ALL LOCK” or “ALL UNLOCK” to check that it works normally.
Is the inspection result normal?
YES >> Door lock actuator is OK.
NO >> Refer to DLK-88, "
REAR LH : Diagnosis Procedure".
REAR LH : Diagnosis ProcedureINFOID:0000000005146954
Regarding Wiring Diagram information, refer to DLK-157, "Wiring Diagram — POWER DOOR LOCK SYS-
TEM —".
TerminalContinuity
65 3 Yes
66 2 Yes
ALKIA0630ZZ
Terminals Continuity
65 Ground No
66 No
ALKIA0631ZZ
Revision: April 20092010 QX56