Nissan Titan. Manual — part 469
FRONT DOOR LOCK ASSEMBLY LH (KEY CYLINDER SWITCH) CHECK (CREW
CAB)
PWC-49
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
PWC
N
O
P
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 (A) and front door lock assembly LH
(key cylinder switch) connector (B).
4. Check continuity between main power window and door lock/unlock switch connector (A) 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-49, "Component Inspection"
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-42, "Intermittent Incident"
.
NO
>> Replace front door lock assembly LH (key cylinder switch).
Component Inspection
INFOID:0000000009878994
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-50
< DTC/CIRCUIT DIAGNOSIS >
FRONT DOOR LOCK ASSEMBLY LH (KEY CYLINDER SWITCH) CHECK (CREW
CAB)
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
FRONT DOOR LOCK ASSEMBLY LH (KEY CYLINDER SWITCH) CHECK (KING
CAB)
PWC-51
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
PWC
N
O
P
FRONT DOOR LOCK ASSEMBLY LH (KEY CYLINDER SWITCH) CHECK
(KING CAB)
Description
INFOID:0000000009878995
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:0000000009878996
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. Refer to
BCS-16, "DOOR LOCK : CONSULT Function (BCM - DOOR LOCK)"
Is the inspection result normal?
YES
>> Key cylinder switch is OK.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000009878997
Regarding Wiring Diagram information, refer to
PWC-81, "Wiring Diagram - King Cab"
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
D15
6
Ground
Lock
0
Neutral/Unlock
5
7
Unlock
0
Neutral/Lock
5
LIIA1161E
PWC-52
< DTC/CIRCUIT DIAGNOSIS >
FRONT DOOR LOCK ASSEMBLY LH (KEY CYLINDER SWITCH) CHECK (KING
CAB)
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 (A) and front door lock assembly LH
(key cylinder switch) connector (B).
4. Check continuity between main power window and door lock/unlock switch connector (A) 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-52, "Component Inspection"
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-42, "Intermittent Incident"
.
NO
>> Replace front door lock assembly LH (key cylinder switch).
Component Inspection
INFOID:0000000009878998
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
D15 (A)
6
D14 (B)
1
Yes
7
6
Main power window and door
lock/unlock switch connector
Terminal
Ground
Continuity
D15 (A)
6
No
7
AWKIA0060ZZ
Front door lock assembly LH (key
cylinder switch) connector
Terminal
Ground
Continuity
D14
5
Yes
LIIA1572E
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