Nissan Leaf. Manual — part 168
BCS-66
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
Diagnosis Procedure
INFOID:0000000010122350
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 M25.
2. Check voltage between BCM connector M25 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 M25 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.
57
Battery power supply
9 (10A)
70
H (40A)
BCM
Ground
Voltage
(Approx.)
Connector
Terminal
M25
57
—
Battery voltage
70
BCM
Ground
Continuity
Connector
Terminal
M25
67
—
Yes
BCS
COMBINATION SWITCH INPUT CIRCUIT
BCS-67
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
COMBINATION SWITCH INPUT CIRCUIT
Diagnosis Procedure
INFOID:0000000010122351
Regarding Wiring Diagram information, refer to
.
1.
CHECK INPUT 1 - 5 CIRCUIT FOR OPEN
1. Turn power switch OFF.
2. Disconnect BCM connector M24 and combination switch connector.
3. Check continuity between BCM connector M24 and combination switch connector M27.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace harness or connectors.
2.
CHECK INPUT 1 - 5 CIRCUIT FOR SHORT
Check for continuity between BCM connector M24 and ground.
Is the inspection result normal?
YES
>> Repair or replace harness or connectors.
NO
>> GO TO 3.
3.
CHECK BCM OUTPUT VOLTAGE
1. Connect BCM connector M24.
2. Check voltage between BCM connector M24 and ground.
Is the inspection result normal?
Combination switch
signal
BCM
Combination switch
Continuity
Connector
Terminal
Connector
Terminal
INPUT 1
M24
36
M27
11
Yes
INPUT 2
35
9
INPUT 3
34
7
INPUT 4
33
10
INPUT 5
32
13
Combination switch
signal
BCM
Ground
Continuity
Connector
Terminal
INPUT 1
M24
36
—
No
INPUT 2
35
INPUT 3
34
INPUT 4
33
INPUT 5
32
BCM signal
BCM
Ground
Voltage
(Approx.)
Connector
Terminal
OUTPUT 1
M24
36
Refer to
OUTPUT 2
35
OUTPUT 3
34
OUTPUT 4
33
OUTPUT 5
32
BCS-68
< DTC/CIRCUIT DIAGNOSIS >
COMBINATION SWITCH INPUT CIRCUIT
YES
>> Replace combination switch. Refer to
BCS-73, "Removal and Installation"
.
NO
>> Replace BCM. Refer to
BCS
COMBINATION SWITCH OUTPUT CIRCUIT
BCS-69
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
COMBINATION SWITCH OUTPUT CIRCUIT
Diagnosis Procedure
INFOID:0000000010122352
Regarding Wiring Diagram information, refer to
.
1.
CHECK OUTPUT 1 - 5 CIRCUIT FOR OPEN
1. Turn power switch OFF.
2. Disconnect BCM connector M24 and combination switch connector.
3. Check continuity between BCM connector M24 and combination switch connector M27.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace harness or connectors.
2.
CHECK OUTPUT 1 - 5 CIRCUIT FOR SHORT
Check for continuity between BCM connector M24 and ground.
Is the inspection result normal?
YES
>> Repair or replace harness or connectors.
NO
>> GO TO 3.
3.
CHECK BCM INPUT VOLTAGE
1. Connect BCM connector M24 and combination switch connector.
2. Turn power switch ON.
3. Check voltage between BCM connector M24 and ground.
Combination switch
signal
BCM
Combination switch
Continuity
Connector
Terminal
Connector
Terminal
OUTPUT 1
M24
6
M27
12
Yes
OUTPUT 2
5
14
OUTPUT 3
4
5
OUTPUT 4
3
2
OUTPUT 5
2
8
Combination switch
signal
BCM
Ground
Continuity
Connector
Terminal
OUTPUT 1
M24
6
—
No
OUTPUT 2
5
OUTPUT 3
4
OUTPUT 4
3
OUTPUT 5
2
BCM signal
BCM
Ground
Voltage
(Approx.)
Connector
Terminal
INPUT 1
M68
6
Refer to
.
INPUT 2
5
INPUT 3
4
INPUT 4
3
INPUT 5
2
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