Nissan Maxima. Manual — part 765
BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT
INL-19
< DTC/CIRCUIT DIAGNOSIS >
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BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT
Description
INFOID:0000000009465421
Provides the interior room lamp power supply. Also cuts the power supply when the interior room lamp battery
saver is activated.
Component Function Check
INFOID:0000000009465422
1.
CHECK BATTERY SAVER OUTPUT/POWER SUPPLY FUNCTION
CONSULT
1. Turn ignition switch ON.
2. Turn each interior room lamp ON.
-
Front room/map lamp assembly
-
Personal lamps rear
-
Foot lamps
-
Front step lamps
-
Rear step lamps
-
Trunk room lamp
-
Vanity mirror lamps
3. Select “BATTERY SAVER” of BCM (BATTERY SAVER) active test item.
4. While operating the test item, check that each interior room lamp turns ON/OFF.
Is the inspection result normal?
YES
>> Battery saver output/power supply circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000009465423
Regarding Wiring Diagram information, refer to
.
1.
CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OUTPUT
CONSULT
1. Turn ignition switch ON.
2. Select “BATTERY SAVER” of BCM (BATTERY SAVER) active
test item.
3. While operating the test item, check voltage between BCM con-
nector M17 terminal 4 and ground.
Is the inspection result normal?
YES
>> GO TO 2
NO
>> Replace BCM after making sure battery saver output/power supply circuit is not shorted to volt-
BCS-79, "Removal and Installation"
2.
CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the following connectors.
OFF
: Interior room lamp OFF
ON
: Interior room lamp ON
(+)
(-)
Test item
Voltage
BCM
Ground
BATTERY
SAVER
Connector
Terminal
M17
4
OFF
0V
ON
Battery voltage
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INL-20
< DTC/CIRCUIT DIAGNOSIS >
BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT
-
BCM M17
-
Front room/map lamp assembly
-
Vanity mirror lamp LH
-
Vanity mirror lamp RH
-
Foot lamp LH
-
Foot lamp RH
-
Front step lamp LH
-
Front step lamp RH
-
Rear step lamp LH
-
Rear step lamp RH
-
Trunk room lamp
3. Check continuity between BCM connector M17 terminal 4 and each interior room lamp connector.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair the harness or connectors.
3.
CHECK BATTERY SAVER OUTPUT/POWER SUPPLY SHORT CIRCUIT
Check continuity between BCM connector M17 terminal 4 and
ground.
Is the inspection result normal?
YES
>> Replace the interior room lamp. Refer to
.
NO
>> Repair the harness or connectors.
BCM
Each interior room lamp
Continuity
Connector
Terminal
Connector
Terminal
M17
4
Front room/map lamp assembly
R8
1
Yes
Vanity mirror lamp LH
R3
2
Vanity mirror lamp RH
R9
2
Foot lamp LH
M99
1
Foot lamp RH
M100
1
Front step lamp LH
D11
1
Front step lamp RH
D109
1
Rear step lamp LH
D206
1
Rear step lamp RH
D301
1
Trunk room lamp
B36
1
BCM
Ground
Continuity
Connector
Terminal
M17
4
No
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INTERIOR ROOM LAMP CONTROL CIRCUIT
INL-21
< DTC/CIRCUIT DIAGNOSIS >
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INTERIOR ROOM LAMP CONTROL CIRCUIT
Description
INFOID:0000000009465424
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:0000000009465425
CAUTION:
Before performing the diagnosis, check that the following is normal.
• Battery saver output/power supply
• Front room/map lamp assembly bulbs
• Personal lamp rear bulbs
• Foot lamp bulbs
1.
CHECK INTERIOR ROOM LAMP CONTROL FUNCTION
CONSULT
1. Switch the front room/map lamp assembly to DOOR.
2. Turn ignition switch ON.
3. Select “INT LAMP” of BCM (INT LAMP) active test item.
4. While operating the test item, check that each interior room lamp turns ON/OFF (gradual brightening/dim-
ming).
Is the inspection result normal?
YES
>> Interior room lamp control circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000009465426
Regarding Wiring Diagram information, refer to
.
1.
CHECK INTERIOR ROOM LAMP CONTROL OUTPUT
CONSULT
1. Turn ignition switch ON.
2. Select “INT LAMP” of BCM (INT LAMP) active test item.
3. While operating the test item, check voltage between BCM connector M17 terminal 19 and ground.
Is the inspection result normal?
YES
>> Interior room lamp control circuit is operating normally.
Fixed ON>>GO TO 3
Fixed OFF>>GO TO 2
2.
CHECK INTERIOR ROOM LAMP CONTROL OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector M17, front room/map lamp assembly and foot lamp connectors.
3. Check continuity between BCM connector M17 terminal 19 and each interior room lamp connector.
ON
: Interior room lamp gradual brightening
OFF
: Interior room lamp gradual dimming
BCM
Ground
Test item
Voltage
Connector
Terminal
INT LAMP
M17
19
ON
0V
OFF
Battery voltage
INL-22
< DTC/CIRCUIT DIAGNOSIS >
INTERIOR ROOM LAMP CONTROL CIRCUIT
Is the inspection result normal?
YES
>> Check interior room lamps for an open. If OK, replace BCM. Refer to
. If NG, replace the interior room lamp. Refer to
INL-84, "Removal and Installation"
.
NO
>> Repair the harness or connectors.
3.
CHECK INTERIOR ROOM LAMP CONTROL SHORT CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector M17, front room/map lamp assem-
bly and foot lamp connectors.
3. Check continuity between BCM connector M17 terminal 19 and
ground.
Is the inspection result normal?
YES
>> Check interior room lamps for a short circuit. If OK, replace BCM. Refer to
. If NG, replace the interior room lamp. Refer to
INL-84, "Removal and Installation"
.
NO
>> Repair the harness or connectors.
BCM
Interior room lamp
Continuity
Connector
Terminal
Connector
Terminal
M17
19
Front room/map lamp assembly
R8
2
Yes
Foot lamp LH
M99
2
Foot lamp RH
M100
2
BCM
Ground
Continuity
Connector
Terminal
M17
19
No
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