Infiniti QX56 (JA60). Manual — part 756
PWC-36
< COMPONENT DIAGNOSIS >
DOOR KEY CYLINDER SWITCH
DOOR KEY CYLINDER SWITCH
Description
INFOID:0000000005147213
Main power window and door lock/unlock switch detects condition of the door key cylinder and transmits to
BCM as the LOCK or UNLOCK signals.
Component Function Check
INFOID:0000000005147214
1.
CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
Check (“KEY CYL LK-SW”, “KEY CYL UN-SW”) in “DATA MONITOR” mode for “POWER DOOR LOCK SYS-
TEM” with CONSULT-III. Refer to
DLK-56, "CONSULT-III Function (INTELLIGENT KEY)"
.
Is the inspection result normal?
YES
>> Key cylinder switch is OK.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000005147215
Regarding Wiring Diagram information, refer to
.
1.
CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between main power window and door lock/
unlock switch connector and ground.
Is the measurement value within the specification?
YES
>> Replace main power window and door lock/unlock switch.
NO
>> GO TO 2
2.
CHECK DOOR KEY CYLINDER SIGNAL CIRCUIT
Monitor item
Condition
KEY CYL LK-SW
Lock
: ON
Neutral / Unlock
: OFF
KEY CYL UN-SW
Unlock
: ON
Neutral / Lock
: OFF
Terminals
Key position
Voltage (V)
(Approx.)
(+)
(–)
Main power window
and door lock/unlock
switch connector
Terminal
D7
4
Ground
Lock
0
Neutral/Unlock
5
6
Unlock
0
Neutral/Lock
5
ALKIA0309ZZ
DOOR KEY CYLINDER SWITCH
PWC-37
< COMPONENT DIAGNOSIS >
C
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PWC
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1. Turn ignition switch OFF.
2. Disconnect main power window and door lock/unlock switch and
front door lock assembly LH (key cylinder switch).
3. Check continuity between main power window and door lock/
unlock switch connector and front door lock assembly LH (key
cylinder switch) connector.
4. Check continuity between main power window and door lock/unlock switch connector and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT
Check continuity between front door lock assembly LH (key cylinder
switch) connector and ground.
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Repair or replace harness.
4.
CHECK DOOR KEY CYLINDER SWITCH
Check door key cylinder switch.
PWC-37, "Component Inspection"
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-38, "Intermittent Incident"
.
NO
>> Replace front door lock assembly LH (door key cylinder switch).
Component Inspection
INFOID:0000000005147216
COMPONENT INSPECTION
1.
CHECK DOOR KEY CYLINDER SWITCH
Main power window
and door lock/unlock
switch connector
Terminal
Front door lock as-
sembly LH (key cylin-
der switch) connector
Terminal
Continuity
D7 (A)
4
D14 (B)
1
Yes
6
6
Main power window and door
lock/unlock switch connector
Terminal
Ground
Continuity
D7 (A)
4
No
6
ALKIA1025ZZ
Front door lock assembly LH (key
cylinder switch) connector
Terminal
Ground
Continuity
D14
5
Yes
LIIA1572E
PWC-38
< COMPONENT DIAGNOSIS >
DOOR KEY CYLINDER SWITCH
Check front door lock assembly LH (key cylinder switch).
Is the inspection result normal?
YES
>> Key cylinder switch is OK.
NO
>> Replace front door lock assembly LH (key cylinder switch).
Terminal
Key position
Continuity
Front door lock assembly LH
(key cylinder switch) connector
6
5
Unlock
Yes
Neutral/Lock
No
1
Lock
Yes
Neutral/Unlock
No
LIIA1573E
POWER WINDOW SERIAL LINK
PWC-39
< COMPONENT DIAGNOSIS >
C
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F
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A
B
PWC
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POWER WINDOW SERIAL LINK
POWER WINDOW MAIN SWITCH
POWER WINDOW MAIN SWITCH : Description
INFOID:0000000005147217
Main power window and door lock/unlock switch, power window and door lock/unlock switch RH and BCM
transmit and receive the signal by power window serial link.
The signal mentioned below is transmitted from BCM to main power window and door lock/unlock switch and
power window and door lock/unlock switch RH
• Keyless power window down signal
The signal mentioned below is transmitted from main power window and door lock/unlock switch to power win-
dow and door lock/unlock switch RH
• Front door window RH operation signal
• Power window control by key cylinder switch signal
• Power window lock switch signal
• Retained power operation signal
POWER WINDOW MAIN SWITCH : Component Function Check
INFOID:0000000005147218
1.
CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH OUTPUT SIGNAL
Check (“CDL LOCK SW ”, “CDL UNLOCK SW”) in “DATA MONITOR” mode for “POWER DOOR LOCK SYS-
TEM” with CONSULT-III. Refer to
BCS-17, "DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)"
.
Is the inspection result normal?
YES
>> Power window serial link is OK.
NO
>> Refer to
PWC-39, "POWER WINDOW MAIN SWITCH : Diagnosis Procedure"
POWER WINDOW MAIN SWITCH : Diagnosis Procedure
INFOID:0000000005147219
Regarding Wiring Diagram information, refer to
.
1.
CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH OUTPUT SIGNAL
1. Remove Intelligent Key or ignition key, and close front door LH
and RH.
2. Check signal between BCM connector and ground with oscillo-
scope when door lock and unlock switch (LH and RH) is turned
to “LOCK” or “UNLOCK”.
3. Check that signals which are shown in the figure below can be
detected during 10 second just after door lock and unlock switch
(LH and RH) is turned to “LOCK” or “UNLOCK”.
Monitor item
Condition
CDL LOCK SW
LOCK
: ON
UNLOCK
: OFF
CDL UNLOCK SW
LOCK
: OFF
UNLOCK
: ON
LIIA0391E
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