lock INFINITI QX56 2009 Factory Service Manual

DLK-82
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
FRONT DOOR LOCK ACTUATOR LH (DOOR UNLOCK SENSOR)
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 S E C - 111 ,
"Removal and Installation".
Component InspectionINFOID:0000000003775744
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-238, "
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: December 20092009 QX56

DOOR REQUEST SWITCHDLK-83
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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DOOR REQUEST SWITCH
DescriptionINFOID:0000000003775745
Transmits lock/unlock operation to Intelligent Key unit.
Component Function CheckINFOID:0000000003775746
1.CHECK FUNCTION
With CONSULT-III
Check door request switch "DR REQ SW" and "AS REQ SW" in DATA MONITOR mode.
Is the inspection result normal?
YES >> Door request switch is OK.
NO >> Refer to DLK-83, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000003775747
1.CHECK FRONT DOOR REQUEST SWITCH
With CONSULT-III
Check front door request switch (“DR REQ SW” or “AS REQ SW”) in “DATA MONITOR” mode.
Without CONSULT-III
1. Turn ignition switch OFF.
2. Check voltage between Intelligent Key unit harness connector M70 terminals 5, 25 and ground.
Is the inspection result normal?
YES >> Front door request switch is OK.
NO >> GO TO 2
2.CHECK FRONT DOOR REQUEST SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect Intelligent Key unit and front door request switch connectors.
3. Check continuity between Intelligent Key unit harness connector (A) M70 terminals 5 (driver door), 25 (passenger door) and front door request switch harness connector (B) D16 (LH), D116 (RH) terminal 1.
Monitor item Condition
DR REQ SW
AS REQ SW Door request switch is pressed : ON
Door request switch is released : OFF
Monitor item Condition
DR REQ SW
AS REQ SW Front door request switch is pressed: ON
Front door request switch is released: OFF
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: December 20092009 QX56

DLK-86
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR LOCK ACTUATOR
DOOR LOCK ACTUATOR
DRIVER SIDE
DRIVER SIDE : DescriptionINFOID:0000000003775749
Locks/unlocks the door with the signal from BCM.
DRIVER SIDE : Component Function CheckINFOID:0000000003775750
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-86, "
DRIVER SIDE : Diagnosis Procedure".
DRIVER SIDE : Diagnosis ProcedureINFOID:0000000003775751
1.CHECK DOOR LOCK ACTUATOR SIGNAL
1. Turn ignition switch OFF.
2. Check voltage between BCM connector M20 terminals 59, 65 and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> GO TO 3
2.CHECK DOOR LOCK ACTUATOR HARNESS
1. Disconnect BCM and front door lock assembly LH (actuator).
2. Check continuity between BCM connector (A) M20 terminals 59, 65 and front door lock assembly LH (actuator) connector (B)
D14 terminals 2, 3.
Is the inspection result normal?
YES >> Replace front door lock assembly LH (actuator).
NO >> Repair or replace harness.
3.CHECK DOOR LOCK ACTUATOR HARNESS
1. Disconnect BCM and front door lock assembly LH (actuator).
Connector Te r m i n a l s
Condition Voltage (V)
(Approx.)
(+) (-)
M20 59
Ground Driver door lock/unlock
switch is turned to UN-
LOCK
0
→ Battery voltage
65 Driver door lock/unlock
switch is turned to LOCK
0
→ Battery voltage
LIIA1046E
Connector Terminals Connector Terminals Continuity
M20 59
D14 2Y
es
65 3Yes
ALKIA0632ZZ
Revision: December 20092009 QX56

DOOR LOCK ACTUATORDLK-87
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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2. Check continuity between BCM connector M20 terminals 59, 65 and ground.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-56, "Removal and Installation".
NO >> Repair or replace harness.
PASSENGER SIDE
PASSENGER SIDE : DescriptionINFOID:0000000003775752
Locks/unlocks the door with the signal from BCM.
PASSENGER SIDE : Co mponent Function CheckINFOID:0000000003775753
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:0000000003775754
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
NO >> GO TO 3
2.CHECK DOOR LOCK ACTUATOR HARNESS
1. Disconnect BCM and front door lock actuator RH.
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: December 20092009 QX56

DLK-88
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR LOCK ACTUATOR
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-238, "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-56, "Removal and Installation".
NO >> Repair or replace harness.
REAR LH
REAR LH : DescriptionINFOID:0000000003775755
Locks/unlocks the door with the signal from BCM.
REAR LH : Component Function CheckINFOID:0000000003775756
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:0000000003775757
1.CHECK DOOR LOCK ACTUATOR SIGNAL
1. Turn ignition switch OFF.
Terminal Continuity
65 3 Yes
66 2 Yes
ALKIA0630ZZ
Terminals Continuity
65 Ground No
66 No
ALKIA0631ZZ
Revision: December 20092009 QX56

DOOR LOCK ACTUATORDLK-89
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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2. Check voltage between BCM connector M20 terminals 65, 66 and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> GO TO 3
2.CHECK DOOR LOCK ACTUATOR HARNESS
1. Disconnect BCM and rear door lock actuator LH.
2. Check continuity between BCM connector (A) M20 terminals 65, 66 and rear door lock actuator LH connector (B) D205 terminals
2, 3.
Is the inspection result normal?
YES >> Replace rear door lock actuator LH.
NO >> Repair or replace harness or passenger select unlock relay.
3.CHECK DOOR LOCK ACTUATOR HARNESS
1. Disconnect BCM and each door lock actuator.
2. Check continuity between BCM connector M20 terminals 65, 66 and ground.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-56, "Removal and Installation".
NO >> Repair or replace harness or passenger select unlock relay.
REAR RH
REAR RH : DescriptionINFOID:0000000003775758
Locks/unlocks the door with the signal from BCM.
Connector Te 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
Terminals Continuity
65 3 Yes
66 2 Yes
ALKIA0629ZZ
Terminals Continuity
65 Ground No
66 No
ALKIA0631ZZ
Revision: December 20092009 QX56

DLK-90
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR LOCK ACTUATOR
REAR RH : Component Function Check
INFOID:0000000003775759
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-90, "
REAR RH : Diagnosis Procedure".
REAR RH : Diagnosis ProcedureINFOID:0000000003775760
1.CHECK DOOR LOCK ACTUATOR 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
NO >> GO TO 3
2.CHECK DOOR LOCK ACTUATOR HARNESS
1. Disconnect BCM and rear door lock actuator RH.
2. Check continuity between BCM connector (A) M20 terminals 65, 66 and rear door lock actuator RH connector (B) D305 terminals
2, 3.
Is the inspection result normal?
YES >> Replace rear door lock actuator RH.
NO >> Repair or replace harness or passenger select unlock relay.
3.CHECK DOOR LOCK ACTUATOR HARNESS
1. Disconnect BCM and rear door lock actuator RH.
Connector Te 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
Terminals Continuity
65 3 Yes
66 2 Yes
ALKIA0630ZZ
Revision: December 20092009 QX56

DOOR LOCK ACTUATORDLK-91
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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2. Check continuity between BCM connector (A) M20 terminals 65, 66 and ground.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-56, "Removal and Installation".
NO >> Repair or replace harness or passenger select unlock relay.
BACK DOOR
BACK DOOR : DescriptionINFOID:0000000003775761
All vehicles equipped with an automatic back door syste m are not equipped with a back door actuator. Open-
ing and closing the back door is accomplished through the back door control unit assembly. Refer to DLK-123,
"Self-Diagnosis Procedure".
Terminals Continuity
65 Ground No
66 No
ALKIA0631ZZ
Revision: December 20092009 QX56

DLK-92
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
GLASS HATCH LOCK ACTUATOR
GLASS HATCH LOCK ACTUATOR
Diagnosis ProcedureINFOID:0000000004190669
1.CHECK GLASS HATCH LOCK ACTUATOR SIGNAL
1. Turn ignition switch OFF.
2. Check voltage between BCM connector M19 terminal 53 and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace BCM. Refer to BCS-56, "
Removal and Installa-
tion".
2.CHECK GLASS HATCH LOCK ACTUATOR HARNESS
1. Disconnect BCM and glass hatch lock actuator.
2. Check continuity between BCM connector (A) M19 terminal 53 and glass hatch lock actuator connector (B) D711 terminal 3.
3. Check continuity between BCM connector M19 terminals 53 and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK GLASS HATCH LOCK ACTUATOR GROUND CIRCUIT
Check continuity between glass hat ch lock actuator connector D711
terminal 1 and ground.
Is the inspection result normal?
YES >> Replace glass hatch lock actuator. Refer to DLK-244,
"Door Lock Assembly".
NO >> Repair or replace harness.
Connector Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M19 53 Ground Glass hatch switch is
turned to depressed0
→ Battery voltage
for 300 ms
LIIA1938E
Terminals Continuity
53 3 Yes
Terminals Continuity
53 Ground No
ALKIA1789ZZ
Terminals Continuity
1 Ground Yes
ALKIA1790ZZ
Revision: December 20092009 QX56

PASSENGER SELECT UNLOCK RELAYDLK-93
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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PASSENGER SELECT UNLOCK RELAY
DescriptionINFOID:0000000003775762
Controls the operation of bot h rear door lock actuators.
Component Function CheckINFOID:0000000003775763
1.CHECK FUNCTION
1. Ensure "SELECTIVE UNLOCK FUNCTION" in WORK SUPPORT is enabled.
2. Use CONSULT-III to perform Active Test "DOOR LOCK".
3. Touch “ALL LOCK” or “ALL UNLOCK” to c heck that both rear doors work normally.
Is the inspection result normal?
YES >> Passenger select unlock relay is OK.
NO >> Refer to DLK-93, "
Component Function Check".
Diagnosis ProcedureINFOID:0000000003775764
1.CHECK PASSENGER SELECT UNLOCK RELAY CIRCUIT
NOTE:
Passenger select unlock relay must remain connected during this step.
1. Turn ignition switch OFF.
2. Disconnect BCM and inoperative rear door lock actuator.
3. Check continuity between BCM connector (A) M20 terminal 66 and rear door lock actuator LH connector (B) D205 terminal 2 or
rear door lock actuator RH connector (C) D305 Terminal 2.
4. Check continuity between BCM connector M20 terminal 66 and body ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> GO TO 2
2.CHECK PASSENGER SELECT UNLOCK RELAY INPUT
1. Disconnect passenger select unlock relay.
2. Check continuity between BCM connector (A) M20 terminal 66 and passenger select unlock relay connector (B) M7 terminal 3.
3. Check continuity between BCM connector (A) M20 terminal 66 and body ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness between BCM and relay.
3.CHECK PASSENGER SELECT UNLOCK RELAY OUTPUT 66 - 2 : Continuity should exist.
66 - Ground
: Continuity should not exist.
ALKIA1634ZZ
66 - 3 : Continuity should exist.
66 - Ground : Continuity should not exist.
ALKIA1635ZZ
Revision: December 20092009 QX56