Nissan Pathfinder. Manual — part 221
BCS
B259A ROOM LAMP FUSE
BCS-73
< DTC/CIRCUIT DIAGNOSIS >
[BCM]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-80, "Removal and Installation"
NO
>> Repair or replace harness or connectors.
BCM
Ground
Continuity
Connector
Terminal
M81
129
—
No
BCS-74
< DTC/CIRCUIT DIAGNOSIS >
[BCM]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
Diagnosis Procedure
INFOID:0000000009174915
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSE AND FUSIBLE LINK
Check that the following fuse and fusible link are not blown.
Is the fuse or fusible link blown?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit.
NO
>> GO TO 2
2.
CHECK POWER SUPPLY CIRCUIT
1. Disconnect BCM connector M81.
2. Check voltage between BCM connector M81 terminals 131, 139 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness or connectors.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM connector M81 terminals 134, 143 and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair or replace harness or connectors.
Terminal No.
Signal name
Fuse and fusible link No.
139
Fusible link battery power
O (40A)
131
BCM battery fuse
1 (10A)
BCM
Ground
Voltage
(Approx.)
Connector
Terminal
M81
131
—
Battery voltage
139
BCM
Ground
Continuity
Connector
Terminal
M81
134
—
Yes
143
BCS
COMBINATION SWITCH INPUT CIRCUIT
BCS-75
< DTC/CIRCUIT DIAGNOSIS >
[BCM]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
COMBINATION SWITCH INPUT CIRCUIT
Diagnosis Procedure
INFOID:0000000009174916
Regarding Wiring Diagram information, refer to
.
1.
CHECK INPUT 1 - 5 SYSTEM CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect BCM connector M19 and combination switch connector.
3. Check continuity between BCM connector M19 and combination switch connector.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace harness or connectors.
2.
CHECK INPUT 1 - 5 SYSTEM CIRCUIT FOR SHORT
Check continuity between BCM connector M19 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connectors.
3.
CHECK BCM OUTPUT VOLTAGE
1. Connect BCM connector M19 and combination switch connector.
2. Turn ignition switch ON.
3. Check voltage between BCM connector M19 and ground.
Signal
BCM
Combination switch
Continuity
Connector
Terminal
Connector
Terminal
INPUT 1
M19
79
M28
11
Yes
INPUT 2
78
9
INPUT 3
77
7
INPUT 4
76
10
INPUT 5
75
13
Signal
BCM
Ground
Continuity
Connector
Terminal
INPUT 1
M19
79
No
INPUT 2
78
INPUT 3
77
INPUT 4
76
INPUT 5
75
Signal
BCM
Ground
Voltage
Connector
Terminal
INPUT 1
M19
79
—
Refer to
.
INPUT 2
78
INPUT 3
77
INPUT 4
76
INPUT 5
75
BCS-76
< DTC/CIRCUIT DIAGNOSIS >
[BCM]
COMBINATION SWITCH INPUT CIRCUIT
Is the inspection result normal?
YES
>> Replace the combination switch. Refer to
BCS-81, "Removal and Installation"
NO
>> Replace BCM. Refer to
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