Nissan Sentra. Manual — part 284
DLK-252
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT INTELLIGENT KEY SYSTEM]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
Diagnosis Procedure
INFOID:0000000010291095
Regarding Wiring Diagram information, refer to
1.
CHECK FUSES AND FUSIBLE LINK
Check that the following fuses and fusible link are not blown.
Is the fuse blown?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connectors.
3. Check voltage between BCM connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM connector and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair harness or connector.
Terminal No.
Signal name
Fuses and fusible link No.
63
Battery power supply
12 (10A)
70
G (40A)
11
Ignition switch ACC or ON
18 (10A)
BCM
Ground
Ignition switch position
Connector
Terminal
OFF
ACC
ON
M20
63
Battery voltage
Battery voltage
Battery voltage
70
M21
11
—
0 V
Battery voltage
Battery voltage
BCM
Ground
Continuity
Connector
Terminal
M20
65
—
Yes
DOOR SWITCH
DLK-253
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
DOOR SWITCH
Description
INFOID:0000000009756558
Detects door open/close condition.
Component Function Check
INFOID:0000000009756559
1.
CHECK FUNCTION
With CONSULT
Check door switches DOOR SW-DR, DOOR SW-AS, DOOR SW-RL, DOOR SW-RR in Data Monitor mode
with CONSULT.
Is the inspection result normal?
YES
>> Door switch is OK.
NO
>> Refer to
DLK-253, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000009756560
Regarding Wiring Diagram information, refer to
.
1.
CHECK DOOR SWITCH INPUT SIGNAL
1. Turn ignition switch OFF.
2. Check signal between BCM connector and ground with oscilloscope.
Monitor item
Condition
DOOR SW-DR
CLOSE
→ OPEN: OFF → ON
DOOR SW-AS
DOOR SW-RL
DOOR SW-RR
DLK-254
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT INTELLIGENT KEY SYSTEM]
DOOR SWITCH
Is the inspection result normal?
YES
>> GO TO 4
NO
>> GO TO 2
2.
CHECK DOOR SWITCH CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM connector and door switch connector.
Terminals
Door condition
Voltage (V)
(Approx.)
(+)
(–)
BCM
connector
Terminal
B57
45
Ground
Front RH
OPEN
0
CLOSE
7.0 - 8.0V
48
Rear RH
OPEN
0
CLOSE
7.0 - 8.0V
46
Front LH
OPEN
0
CLOSE
7.0 - 8.0V
47
Rear LH
OPEN
0
CLOSE
7.0 - 8.0V
PKIB4960J
PKIB4960J
PKIB4960J
PKIB4960J
DOOR SWITCH
DLK-255
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
3. Check continuity between BCM connector and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness between BCM and door switch.
3.
CHECK DOOR SWITCH
DLK-255, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Replace malfunctioning door switch.
4.
CHECK INTERMITTENT INCIDENT
GI-39, "Intermittent Incident"
.
>> Inspection End.
Component Inspection
INFOID:0000000009756561
1.
CHECK DOOR SWITCH
1. Turn ignition switch OFF.
2. Disconnect door switch connector.
3. Check door switch.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace malfunctioning door switch.
BCM connector
Terminal
Door switch
connector
Terminal
Continuity
B57
45
B28 (Front RH)
3
Yes
48
B41 (Rear RH)
46
B21 (Front LH)
47
B26 (Rear LH)
BCM connector
Terminal
Ground
Continuity
B57
45
No
48
46
47
Terminal
Door switch condition
Continuity
Door switch
3
Ground part of
door switch
Pressed
No
Released
Yes
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