Infiniti QX56 (JA60). Manual — part 226
DOOR LOCK AND UNLOCK SWITCH
DLK-75
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
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, press 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 terminal 22 and main power window and door lock/unlock
switch connector D7 terminal 14.
Connector
Terminal
Voltage (V)
( + )
( – )
M18
22
Ground
PIIA6379E
PIIA1297E
The front windows should be lowered.
17 - Ground
: Continuity should exist.
LIIA0392E
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 : Description
INFOID:0000000005146932
Transmits door lock/unlock operation to BCM.
PASSENGER SIDE : Component Function Check
INFOID: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 Procedure
INFOID:0000000005146934
Regarding Wiring Diagram information, refer to
DLK-157, "Wiring Diagram — POWER DOOR LOCK SYS-
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
DOOR LOCK AND UNLOCK SWITCH
DLK-77
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
1.
CHECK DOOR LOCK/UNLOCK SWITCH INPUT SIGNAL
With CONSULT-III
Check power window and door lock/unlock switch RH ("CDL LOCK SW", "CDL UNLOCK SW") in DATA MON-
ITOR mode in CONSULT–III.
• When power window and door lock/unlock switch RH is turned to LOCK:
• When power window and door lock/unlock switch RH is turned to UNLOCK:
Without CONSULT-III
1. Remove key from ignition key cylinder.
2. Using an oscilloscope, check the signal between BCM connector M18 terminal 22 and ground when
power window and door lock/unlock switch RH is turned to LOCK or UNLOCK.
3. Make sure the signals which are shown in the figure below can be detected during 10 seconds just after
the power window and door lock/unlock switch RH is turned to LOCK or UNLOCK.
Is the inspection normal?
YES
>> Power window and door lock/unlock switch RH circuit is OK.
NO
>> GO TO 2
2.
CHECK BCM OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Using the vehicle operational Intelligent Key, press and hold the UNLOCK button for more than 3 sec-
onds.
Is the inspection 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 power window and door lock/unlock switch RH.
CDL LOCK SW
:ON
CDL UNLOCK SW
:ON
Connector
Terminal
Voltage (V)
( + )
( – )
M18
22
Ground
PIIA6379E
PIIA1297E
The front windows should be lowered.
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
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