Nissan Titan A60. Instruction — part 649
BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT
INL-17
< DTC/CIRCUIT DIAGNOSIS >
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BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT
Description
INFOID:0000000006164461
Provides the battery saver output/power supply. Cuts the power supply when the interior room lamp battery
saver is activating.
Component Function Check
INFOID:0000000006164462
1.
CHECK BATTERY SAVER OUTPUT/POWER SUPPLY FUNCTION
CONSULT-III
1. Turn ignition switch ON.
2. Turn interior room lamp ON.
-
Room lamp (if equipped)
-
Front room/map lamp assembly (if equipped)
3. Select “BATTERY SAVER” of BCM (BATTERY SAVER) active test item.
4. While operating the test item, check that 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:0000000006164463
Regarding Wiring Diagram information, refer to
.
1.
CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OUTPUT
CONSULT-III
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 M20 terminal 56 and ground.
Is the inspection result normal?
YES
>> GO TO 2
NO
>> Replace BCM after making sure the battery saver output/power supply circuit is not shorted to
voltage. Refer to
BCS-53, "Removal and Installation"
.
2.
CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the following connectors.
-
BCM M20
-
Front step lamp LH (if equipped)
-
Front step lamp RH (if equipped)
-
Door mirror LH (with puddle lamps)
-
Door mirror RH (with puddle lamps)
-
Foot lamp LH (if equipped)
OFF
: Interior room lamp OFF
ON
: Interior room lamp ON
(+)
(-)
Test item
Voltage
Connector
Terminal
BATTERY SAVER
M20
56
Ground
OFF
0V
ON
Battery voltage
ALLIA0408GB
INL-18
< DTC/CIRCUIT DIAGNOSIS >
BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT
-
Foot lamp RH (if equipped)
-
Room lamp (if equipped)
-
Front room/map lamp assembly (if equipped)
-
Vanity lamp LH (if equipped)
-
Vanity lamp RH (if equipped)
-
Personal lamp 2nd row (if equipped)
3. Check continuity between BCM connector M20 terminal 56 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 M20 terminal 56 and
ground.
Is the inspection result normal?
YES
>> Check that each interior room lamp has no internal short
circuit.
NO
>> Repair the harness or connectors.
BCM
Each interior room lamp
Continuity
Connector
Terminal
Connector
Terminal
M20
56
Front step lamp LH (if equipped)
D11
1
Yes
Front step lamp RH (if equipped)
D109
1
Door mirror LH (with puddle lamps)
D4
12
Door mirror RH (with puddle lamps)
D107
12
Foot lamp LH (if equipped)
M99
1
Foot lamp RH (if equipped)
M100
1
Room lamp (if equipped)
R10
2
Front room/map lamp assembly (if equipped)
R102
6
Vanity lamp LH (if equipped)
R3
1
Vanity lamp RH (if equipped)
R8
1
Personal lamp 2nd row (if equipped)
R203
3
Connector
Terminal
—
Continuity
M20
56
Ground
No
ALLIA0409GB
INTERIOR ROOM LAMP CONTROL CIRCUIT
INL-19
< DTC/CIRCUIT DIAGNOSIS >
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INTERIOR ROOM LAMP CONTROL CIRCUIT
Description
INFOID:0000000006164464
Controls the following interior room lamps (ground side) by pulse width modulated signal
• Puddle lamps (with puddle lamps)
• Room lamp (if equipped)
• Front room/map lamp assembly (if equipped)
• Personal lamp 2nd row (if equipped)
NOTE:
PWM signal control period is approximately 250 Hz (in the gradual brightening/dimming).
Component Function Check
INFOID:0000000006164465
CAUTION:
Before performing the diagnosis, check that the following is normal.
• Battery saver output/power supply
• Room lamp bulb (if equipped)
• Puddle lamp bulbs (if equipped)
• Front room/map lamp assembly bulbs (if equipped)
• Personal lamp 2nd row bulbs (if equipped)
1.
CHECK INTERIOR ROOM LAMP CONTROL FUNCTION
CONSULT-III
1. Switch the room lamp (if equipped), or front room/map lamp assembly (if equipped) switch 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:0000000006164466
Regarding Wiring Diagram information, refer to
.
1.
CHECK INTERIOR ROOM LAMP CONTROL OUTPUT
CONSULT-III
1. Switch the room lamp (if equipped), or front room/map lamp
assembly (if equipped) switch 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 voltage between BCM con-
nector M20 terminal 63 and ground.
Is the inspection result normal?
YES
>> Interior room lamp control circuit is operating normally.
ON
: Interior room lamp gradual brightening
OFF
: Interior room lamp gradual dimming
(+)
(-)
INT LAMP
Voltage
Connector
Terminal
M20
63
Ground
ON
0V
OFF
Battery voltage
ALLIA0410GB
INL-20
< DTC/CIRCUIT DIAGNOSIS >
INTERIOR ROOM LAMP CONTROL CIRCUIT
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 M20, door mirror connectors (with
puddle lamps), room lamp connector (if equipped) or front room/
map lamp assembly connector (if equipped).
3. Check continuity between BCM connector M20 (A) terminal 63
and door mirror connectors (B) terminal 13 (with puddle lamps),
room lamp connector (C) terminal 1 (if equipped) or front room/
map lamp assembly connector (D) terminal 1 (if equipped).
4. If equipped with personal lamp 2nd row, reconnect front room/
map lamp assembly connector.
5. Disconnect personal lamp 2nd row connector.
6. Check continuity between BCM connector M20 (A) terminal 63
and personal lamp 2nd row connector R203 (B) terminal 1.
Is the inspection result normal?
YES
>> Check interior room lamps for an open. If OK, replace BCM. Refer to
. If NG, replace interior room lamp. Refer to
INL-72, "Removal and Installation"
.
NO
>> Repair the harness or connectors.
3.
CHECK INTERIOR ROOM LAMP CONTROL SHORT CIRCUIT
Connector
Terminal
Component
Connector
Terminal
Continuity
M20 (A)
63
Door mirror LH (with
puddle lamps)
D4 (B)
13
Yes
Door mirror RH (with
puddle lamps)
D107 (B)
13
Room lamp (if
equipped)
R10 (C)
1
Front room/map
lamp assembly (if
equipped)
R102 (D)
1
AWLIA1608ZZ
BCM
Personal lamp 2nd row
Continuity
Connector
Terminal
Connector
Terminal
M20 (A)
63
R203 (B)
1
Yes
ALLIA0412GB
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