Nissan Frontier. Instruction — part 249
DLK-42
< DTC/CIRCUIT DIAGNOSIS >
KEY SWITCH (BCM INPUT)
KEY SWITCH (BCM INPUT)
Diagnosis Procedure
INFOID:0000000009478897
Regarding Wiring Diagram information, refer to
DLK-77, "Wiring Diagram - King Cab"
.
1.
CHECK KEY SWITCH INPUT SIGNAL
With CONSULT
Check key switch "KEY ON SW" in DATA MONITOR mode with CONSULT. Refer to
CONSULT Function (BCM - DOOR LOCK)"
.
• When key is inserted to ignition key cylinder:
• When key is removed from ignition key cylinder:
Without CONSULT
Check voltage between BCM connector M18 terminal 37 and
ground.
Is the inspection result normal?
YES
>> Key switch (insert) circuit is OK.
NO
>> GO TO 2
2.
CHECK KEY SWITCH (INSERT)
1. Turn ignition switch OFF.
2. Disconnect key switch connector.
3. Check continuity between key switch terminals.
Is the inspection result normal?
YES
>> Repair or replace harness or fuse.
NO
>> Replace key switch.
KEY ON SW
: ON
KEY ON SW
: OFF
Connector
Terminal
Condition
Voltage (V)
(+)
(–)
M18
37
Ground
Key is inserted.
Battery voltage
Key is removed.
0
LIIA0567E
Terminals
Condition
Continuity
1 – 2
Key is inserted.
Yes
Key is removed.
No
WIIA0559E
DOOR LOCK ACTUATOR
DLK-43
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
DOOR LOCK ACTUATOR
DRIVER SIDE
DRIVER SIDE : Description
INFOID:0000000009478898
Locks/unlocks the door with the signal from BCM.
DRIVER SIDE : Component Function Check
INFOID:0000000009478899
1.
CHECK FUNCTION
1. Use CONSULT to perform Active Test "DOOR LOCK".
2. Touch “ALL LCK” or “ALL ULK” to check that it works normally.
Is the inspection result normal?
YES
>> Door lock actuator is OK.
NO
>> Refer to
DLK-43, "DRIVER SIDE : Diagnosis Procedure"
DRIVER SIDE : Diagnosis Procedure
INFOID:0000000009478900
Regarding Wiring Diagram information, refer to
DLK-77, "Wiring Diagram - King Cab"
.
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 1, 2.
Is the inspection result normal?
YES
>> Replace front door lock assembly LH (actuator).
Connector
Terminals
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
2
Yes
65
1
ALKIA1191ZZ
DLK-44
< DTC/CIRCUIT DIAGNOSIS >
DOOR LOCK ACTUATOR
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-49, "Removal and Installation"
NO
>> Repair or replace harness.
PASSENGER SIDE
PASSENGER SIDE : Description
INFOID:0000000009478901
Locks/unlocks the door with the signal from BCM.
PASSENGER SIDE : Component Function Check
INFOID:0000000009478902
1.
CHECK FUNCTION
1. Use CONSULT to perform Active Test "DOOR LOCK".
2. Touch “ALL LCK” or “ALL ULK” to check that it works normally.
Is the inspection result normal?
YES
>> Door lock actuator is OK.
NO
>> Refer to
DLK-44, "PASSENGER SIDE : Diagnosis Procedure"
.
PASSENGER SIDE : Diagnosis Procedure
INFOID:0000000009478903
Regarding Wiring Diagram information, refer to
DLK-77, "Wiring Diagram - King Cab"
.
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
ALKIA0633ZZ
Connector
Terminals
Condition
Voltage (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
LIIA1048E
DOOR LOCK ACTUATOR
DLK-45
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
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 1, 2.
Is the inspection result normal?
YES
>> Replace front door lock actuator RH. Refer to
DLK-137, "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-49, "Removal and Installation"
NO
>> Repair or replace harness.
REAR LH
REAR LH : Description
INFOID:0000000009478904
Locks/unlocks the door with the signal from BCM.
REAR LH : Component Function Check
INFOID:0000000009478905
1.
CHECK FUNCTION
1. Use CONSULT to perform Active Test "DOOR LOCK".
2. Touch “ALL LCK” or “ALL ULK” to check that it works normally.
Is the inspection result normal?
YES
>> Door lock actuator is OK.
NO
>> Refer to
DLK-45, "REAR LH : Diagnosis Procedure"
.
REAR LH : Diagnosis Procedure
INFOID:0000000009478906
Regarding Wiring Diagram information, refer to
DLK-87, "Wiring Diagram - Crew Cab"
.
Terminal
Continuity
65
2
Yes
66
1
ALKIA1192ZZ
Terminals
Continuity
65
Ground
No
66
ALKIA0631ZZ
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