Nissan Cube. Instruction — part 197
DLK-54
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
BCM (BODY CONTROL MODULE)
BCM (BODY CONTROL MODULE) : Diagnosis Procedure
INFOID:0000000009950478
1.
CHECK FUSE AND FUSIBLE LINK
Check that the following fuse and fusible link are not blown.
Is the fuse fusing?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is
blown.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BCM connectors.
3.
Check voltage between BCM harness connector and ground.
Is the measurement value normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
Signal name
Fuse and fusible link No.
Battery power supply
G
8
Terminals
Voltage
(Approx.)
(+)
(
−
)
BCM
Ground
Connector
Terminal
M70
70
Battery voltage
57
BCM
Ground
Continuity
Connector
Terminal
M70
67
Existed
DOOR SWITCH
DLK-55
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
DOOR SWITCH
Description
INFOID:0000000009950479
Detects door open/close condition.
Component Function Check
INFOID:0000000009950480
1.
CHECK FUNCTION
Check (“DOOR SW-DR”, “DOOR SW-AS”, “DOOR SW-RL”, “DOOR SW-RR”, “DOOR SW-BK”) in “Data Mon-
itor” mode with CONSULT.
Is the inspection result normal?
YES
>> Door switch is OK.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000009950481
1.
CHECK DOOR SWITCH INPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect malfunctioning door switch connector.
3.
Check signal between malfunctioning door switch harness connector and ground using oscilloscope.
Monitor item
Condition
Status
DOOR SW-DR
Driver side door
Open
ON
Closed
OFF
DOOR SW-AS
Passenger side door
Open
ON
Closed
OFF
DOOR SW-RL
Rear door LH
Open
ON
Closed
OFF
DOOR SW-RR
Rear door RH
Open
ON
Closed
OFF
DOOR SW-BK
Back door
Open
ON
Closed
OFF
DLK-56
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
DOOR SWITCH
(+)
(–)
Condition
Signal
(Reference value)
Door switch
Connector
Terminal
Driver side
B34
3
Ground
Driver door
switch
OFF (When
driver door
closed)
7.0 - 8.0 V
ON (When driv-
er door opened)
0 V
Passenger
side
B27
3
Passenger door
switch
OFF (When
passenger door
closed)
7.0 - 8.0 V
ON (When pas-
senger door
opened)
0 V
Rear LH
B71
3
Rear LH door
switch
OFF (When
rear LH door
closed)
7.0 - 8.0 V
ON (When rear
door LH
opened)
0 V
Rear RH
B53
3
Rear RH door
switch
OFF (When
rear RH door
closed)
7.0 - 8.0 V
ON (When rear
RH door
opened)
0 V
PKIB4960J
PKIB4960J
PKIB4960J
PKIB4960J
DOOR SWITCH
DLK-57
< DTC/CIRCUIT 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
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK DOOR SWITCH CIRCUIT
1.
Disconnect BCM connector.
2.
Check continuity between door switch harness connector and BCM harness connector.
3.
Check continuity between door switch harness connector and ground.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-88, "Removal and Installation"
NO
>> Repair or replace harness.
3.
CHECK DOOR SWITCH
DLK-58, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace malfunctioning door switch. Refer to
DLK-225, "Removal and Installation"
4.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
.
>> INSPECTION END
Back door
B75
3
Ground
Back door
switch
OFF
(When back
door closed)
9.5 - 10.0 V
ON
(When back
door opened)
0 V
(+)
(–)
Condition
Signal
(Reference value)
Door switch
Connector
Terminal
PKIB4960J
Door switch
BCM
Continuity
Connector
Terminal
Connector
Terminal
Driver side
B34
3
M69
47
Existed
Passenger side
B27
45
Rear LH
B71
48
Rear RH
B53
46
Back door
B75
43
Door switch
Ground
Continuity
Connector
Terminal
Driver side
B34
3
Not existed
Passenger side
B27
Rear LH
B71
Rear RH
B53
Back door
B75
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