Nissan Murano. Instruction — part 877
INL-20
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
DTC/CIRCUIT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
BCM
BCM : Diagnosis Procedure
INFOID:0000000009718414
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
L
10
Terminals
Voltage
(Approx.)
(+)
(
−
)
BCM
Ground
Connector
Terminal
M118
1
Battery voltage
M119
11
BCM
Ground
Continuity
Connector
Terminal
M119
13
Existed
INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT
INL-21
< DTC/CIRCUIT DIAGNOSIS >
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INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT
Description
INFOID:0000000009718415
Provides the interior room lamp power supply. Also cuts the power supply when the interior room lamp battery
saver activating.
Component Function Check
INFOID:0000000009718416
1.
CHECK INTERIOR ROOM LAMP POWER SUPPLY FUNCTION
CONSULT ACTIVE TEST
1.
Turn the ignition switch ON.
2.
Turn each interior room lamp ON.
-
Map lamp
-
Personal lamp
-
Step lamp
-
Vanity mirror lamp
-
Luggage room lamp
3.
Select "BATTERY SAVER" of BCM (BATTERY SAVER) active test item.
4.
With operating the test items, check that each interior room lamp turns ON/OFF.
Does the interior room lamp turn ON/OFF?
YES
>> Interior room lamp power supply circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000009718417
1.
CHECK INTERIOR ROOM LAMP POWER SUPPLY OUTPUT
CONSULT ACTIVE TEST
1.
Turn the ignition switch ON.
2.
Select “BATTERY SAVER” of BCM (BATTERY SAVER) active test item.
3.
With operating the test item, check voltage between BCM harness connector and the ground.
Is the measurement value normal?
YES
>> GO TO 2.
NO
>> Replace BCM.
2.
CHECK INTERIOR ROOM LAMP POWER SUPPLY OPEN CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the following connectors.
-
Map lamp
-
Personal lamp
-
Vanity mirror lamp (driver side)
-
Vanity mirror lamp (passenger side)
-
Luggage room lamp (RH)
-
Luggage room lamp (LH)
-
Step lamp (driver side)
Off
: Interior room lamp OFF
On
: Interior room lamp ON
Terminals
Test item
Voltage (Ap-
prox.)
(+)
(–)
BCM
Ground
BATTERY
SAVER
Connector
Terminal
M119
4
Off
0 V
On
Battery volt-
age
INL-22
< DTC/CIRCUIT DIAGNOSIS >
INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT
-
Step lamp (passenger side)
3.
Check continuity between BCM harness connector and each interior room lamp harness connector.
Does continuity exist?
YES
>> GO TO 3.
NO
>> Repair the harnesses or connectors.
3.
CHECK INTERIOR ROOM LAMP POWER SUPPLY SHORT CIRCUIT
Check continuity between BCM harness connector and the ground.
Does continuity exist?
YES
>> Repair the harnesses or connectors.
NO
>> Check that each interior room lamp has no internal short circuit.
BCM
Each interior room lamp
Continuity
Connector
Terminal
Connector
Terminal
M119
4
Map lamp
R19
1
Existed
Personal lamp
R21
1
Vanity mirror lamp
(driver side)
R24
2
Vanity mirror lamp
(passenger side)
R10
2
Luggage room lamp
(RH)
D156
2
Luggage room lamp
(LH)
D157
2
Step lamp
(driver side)
D17
1
Step lamp
(passenger side)
D51
1
BCM
Ground
Continuity
Connector
Terminal
M119
4
Not existed
INTERIOR ROOM LAMP CONTROL CIRCUIT
INL-23
< DTC/CIRCUIT DIAGNOSIS >
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INTERIOR ROOM LAMP CONTROL CIRCUIT
Description
INFOID:0000000009718418
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:0000000009718419
CAUTION:
Before performing the diagnosis, check that the following is normal.
• Interior room lamp power supply
• Map lamp bulb
• Personal lamp bulb
1.
CHECK INTERIOR ROOM LAMP CONTROL FUNCTION
CONSULT ACTIVE TEST
1.
Switch the map lamp switch to DOOR.
2.
Turn the ignition switch ON.
3.
Select “INT LAMP” of BCM (INT LAMP) active test item.
4.
With operating the test items, check that each interior room lamp turns ON/OFF (gradual brightening/dim-
ming).
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:0000000009718420
1.
CHECK INTERIOR ROOM LAMP CONTROL OUTPUT
CONSULT ACTIVE TEST
1.
Turn ignition switch OFF.
2.
Remove all the bulbs of map lamp and personal lamp.
3.
Select “INT LAMP” of BCM (INT LAMP) active test item.
4.
With operating the test item, check continuity between BCM harness connector and ground.
Is the measurement value normal?
YES
>> GO TO 2.
Fixed ON>>GO TO 3.
Fixed OFF>>Replace BCM.
2.
CHECK INTERIOR ROOM LAMP CONTROL OPEN CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BCM connector, map lamp connector and personal lamp connector.
3.
Check continuity between BCM harness connector, map lamp harness connector and personal lamp har-
ness connector.
On
: Interior room lamp gradual brightening
Off
: Interior room lamp gradual dimming
BCM
Ground
Test item
Continuity
Connector
Terminal
INT LAMP
M119
19
On
Existed
Off
Not existed
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