Nissan Leaf. Instruction — part 860
INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT
INL-45
< DTC/CIRCUIT DIAGNOSIS >
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INL
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3. Check continuity between BCM harness connector and each interior room lamp harness connector.
Is the inspection result normal?
YES
>> Check for internal short circuit of each interior room lamp.
NO
>> Repair or replace harnesses.
3.
CHECK INTERIOR ROOM LAMP POWER SUPPLY SHORT CIRCUIT
1. Turn power switch OFF.
2. Disconnect the BCM connector.
3. Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-72, "Removal and Installation"
NO
>> Repair or replace harnesses.
BCM
Each interior room lamp
Continuity
Connector
Terminal
Connector
Terminal
M25
56
Map lamp
R4
1
Yes
Room lamp
R5
2
Luggage room lamp
B41
1
BCM
Ground
Continuity
Connector
Terminal
M25
56
No
INL-46
< DTC/CIRCUIT DIAGNOSIS >
INTERIOR ROOM LAMP CONTROL CIRCUIT
INTERIOR ROOM LAMP CONTROL CIRCUIT
Description
INFOID:0000000010122275
Controls each interior room lamp (ground side) by PWM signal.
NOTE:
PWM signal control period is approximately 250 Hz (in the gradual brightening/dimming).
Component Function Check
INFOID:0000000010122276
CAUTION:
Before performing the diagnosis, check that the following is normal:
• Interior room lamp power supply
• Map lamp bulb
• Room lamp bulb
1.
CHECK INTERIOR ROOM LAMP CONTROL FUNCTION
CONSULT ACTIVE TEST
1. Switch the map lamp switch and room lamp switch to DOOR.
2. Turn power switch ON.
3. Select “INT LAMP” in “Active Test” of “BCM”.
4. While operating the test items, check that each interior room lamp turns ON/OFF (gradual brightening/
dimming).
Does the interior room lamp turns ON/OFF (gradual brightening/dimming)?
YES
>> Interior room lamp control circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000010122277
Regarding Wiring Diagram information. Refer to
.
1.
CHECK INTERIOR ROOM LAMP CONTROL OUTPUT
CONSULT ACTIVE TEST
1. Turn power switch OFF.
2. Remove all the bulbs of map lamp and room lamp.
3. Turn power switch ON.
4. Select “INT LAMP” in “Active Test” of “BCM”.
5. While operating the test item, check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
Fixed ON>>GO TO 3.
Fixed OFF>>Replace BCM. Refer to
BCS-72, "Removal and Installation"
2.
CHECK INTERIOR ROOM LAMP CONTROL OPEN CIRCUIT
1. Turn power switch OFF.
2. Disconnect BCM connector, map lamp and room lamp connectors.
3. Check continuity between BCM harness connector and map lamp harness connector.
On
: Interior room lamp gradual brightening
Off
: Interior room lamp gradual dimming
BCM
Ground
Test item
Continuity
Connector
Terminal
M25
63
INT LAMP
On
Yes
Off
No
INTERIOR ROOM LAMP CONTROL CIRCUIT
INL-47
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
INL
N
O
P
4. Check continuity between BCM harness connector and room lamp harness connector.
Is the inspection result normal?
YES
>> Replace map lamp or room lamp.
NO
>> Repair or replace harnesses.
3.
CHECK INTERIOR ROOM LAMP CONTROL SHORT CIRCUIT
1. Turn power switch OFF.
2. Disconnect BCM connector, map lamp connector and room lamp connector.
3. Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-72, "Removal and Installation"
NO
>> Repair or replace harnesses.
BCM
Map lamp
Continuity
Connector
Terminal
Connector
Terminal
M25
63
R4
3
Yes
BCM
Room lamp
Continuity
Connector
Terminal
Connector
Terminal
M25
63
R5
1
Yes
BCM
Ground
Continuity
Connector
Terminal
M25
63
No
INL-48
< DTC/CIRCUIT DIAGNOSIS >
LUGGAGE ROOM LAMP CIRCUIT
LUGGAGE ROOM LAMP CIRCUIT
Description
INFOID:0000000010122278
Controls the luggage room lamp (ground side) to turn the luggage room lamp ON and OFF.
Diagnosis Procedure
INFOID:0000000010122279
CAUTION:
Before performing the diagnosis, check that the following is normal:
• Interior room lamp power supply
• Luggage room lamp bulb
Regarding Wiring Diagram information. Refer to
.
1.
CHECK LUGGAGE ROOM LAMP OUTPUT
1. Turn power switch OFF.
2. Remove the luggage room lamp bulb.
3. Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
Fixed ON>>GO TO 3.
Fixed OFF>>Replace BCM. Refer to
BCS-72, "Removal and Installation"
2.
CHECK LUGGAGE ROOM LAMP OPEN CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and luggage room lamp harness connector.
Is the inspection result normal?
YES
>> Replace luggage room lamp.
NO
>> Repair or replace harnesses.
3.
CHECK LUGGAGE ROOM LAMP SHORT CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-72, "Removal and Installation"
NO
>> Repair or replace harnesses.
BCM
Ground
Condition
Continuity
Connector
Terminal
M29
49
Back door
Open
Yes
Closed
No
BCM
Luggage room lamp
Continuity
Connector
Terminal
Connector
Terminal
M29
49
B41
2
Yes
BCM
Ground
Continuity
Connector
Terminal
M29
49
No
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