battery INFINITI QX56 2008 Factory Service Manual

INL-16
< COMPONENT DIAGNOSIS >
INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT
- Front step lamp LH
- Front step lamp RH
- Door mirror LH
- Door mirror RH
- Rear step lamp LH
- Rear step lamp RH
- Foot lamp LH
- Foot lamp RH
- Front room/map lamp assembly
- Vanity lamp LH
- Vanity lamp RH
- Cargo lamp
- Personal lamp 2nd row
- Personal lamp 3rd row
3. Check continuity between BCM connector M20 term inal 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/P OWER 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 Interior room lamp
Continuity
Connector Terminal ConnectorTerminal
M20 56 Ignition keyhole illumination
M1501
Ye s
Front step lamp LH
D111
Front step lamp RH D1091
Door mirror LH D412
Door mirror RH D10712
Rear step lamp LH D2061
Rear step lamp RH D3061
Foot lamp LH M991
Foot lamp RH M1001
Front room/map lamp assembly R1026
Vanity lamp LH R31
Vanity lamp RH R81
Cargo lamp B1532
Personal lamp 2nd row R2033
Personal lamp 3rd row R2053
Connector Terminal —Continuity
M20 56Ground No
ALLIA0409GB
Revision: March 2010 2008 QX56

INTERIOR ROOM LAMP CONTROL CIRCUITINL-17
< COMPONENT DIAGNOSIS >
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INTERIOR ROOM LAMP CONTROL CIRCUIT
DescriptionINFOID:0000000001601390
Controls the following interior room lamps (ground side) by PWM signal
• Puddle lamps
• Front room/map lamp assembly
• Personal lamp 2nd row
• Personal lamp 3rd row
NOTE:
PWM signal control period is approximately 250 Hz (in the gradual brightening/dimming).
Component Function CheckINFOID:0000000001601391
CAUTION:
Before performing the diagnosis, check that the following is normal.
• Battery saver output/power supply
• Front room/map lamp bulbs
• Personal lamp bulbs
• Puddle lamp bulbs
1.CHECK INTERIOR ROOM LAMP CONTROL FUNCTION
CONSULT-III
1. Switch the front room/map lamp assembly 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 interi or 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 INL-17, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001601392
1.CHECK INTERIOR ROOM LAMP CONTROL OUTPUT
CONSULT-III
1. Switch the front room/map lamp assembly 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.
Fixed ON>>GO TO 3
Fixed OFF>>GO TO 2
2.CHECK INTERIOR ROOM LAMP CONTROL OPEN CIRCUIT 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
Revision: March 2010 2008 QX56

STEP LAMP CIRCUITINL-19
< COMPONENT DIAGNOSIS >
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STEP LAMP CIRCUIT
DescriptionINFOID:0000000001601393
Controls the front and rear step lamps and the foot lamps (ground side) to turn the lamps ON and OFF.
Component Function CheckINFOID:0000000001601394
CAUTION:
Before performing the diagnosis, check that the following is normal.
• Battery saver output/power supply
• Front step lamp bulbs
• Rear step lamp bulbs
• Foot lamp bulbs
1.CHECK STEP LAMP OPERATION
CONSULT-III
1. Turn ignition switch ON.
2. Select “STEP LAMP TEST” of BC M (INT LAMP) active test item.
3. While operating the test item, check that the front/rear step lamps and foot lamps turn ON/OFF.
Is the inspection result normal?
YES >> Step lamp circuit is normal.
NO >> Refer to INL-19, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001601395
1.CHECK STEP LAMP OUTPUT
CONSULT-III
1. Turn ignition switch ON.
2. Select “STEP LAMP TEST” of BC M (INT LAMP) active test item.
3. While operating the test item, check voltage between BCM har- ness connector M20 terminal 62 and ground.
Is the inspection result normal?
YES >> Step lamp circuit is operating normally.
Fixed ON>>GO TO 3
Fixed OFF>>GO TO 2
2.CHECK STEP LAMP OPEN CIRCUIT ON : Step lamp ON
OFF : Step lamp OFF
Connector Terminal —
STEP LAMP
TEST Vo l ta g e
M20 62 Ground ON
0V
OFF Battery voltage
ALLIA0414GB
Revision: March 2010 2008 QX56

CARGO LAMP CONTROL CIRCUITINL-21
< COMPONENT DIAGNOSIS >
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CARGO LAMP CONTROL CIRCUIT
DescriptionINFOID:0000000001601396
Controls the cargo lamp (ground side) to turn the cargo lamp ON and OFF.
Component Function CheckINFOID:0000000001601397
CAUTION:
Before performing the diagnosis, check that the following is normal.
• Battery saver output/power supply
• Cargo lamp bulb
1.CHECK CARGO LAMP OPERATION
CONSULT-III
1. Turn ignition switch ON.
2. Select “LUGGAGE LAMP TEST” of BCM (INT LAMP) active test item.
3. While operating the test item, chec k that cargo lamp turns ON/OFF.
Is the inspection result normal?
YES >> Cargo lamp circuit is normal.
NO >> Refer to INL-19, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001601398
1.CHECK CARGO LAMP OUTPUT
CONSULT-III
1. Turn ignition switch ON.
2. Select “LUGGAGE LAMP TEST” of BCM (INT LAMP) active test
item.
3. While operating the test item, check voltage between BCM con-
nector M19 terminal 49 and ground.
Is the inspection result normal?
YES >> Cargo lamp control circuit is operating normally.
Fixed ON>>GO TO 3
Fixed OFF>>GO TO 2
2.CHECK CARGO LAMP OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector M19 and cargo lamp connector.
3. Check continuity between BCM connector M19 (A) terminal 49 and cargo lamp connector B153 (B) terminal 1.
Is the inspection result normal?
ON : Cargo lamp ON
OFF : Cargo lamp OFF
Connector Terminal — LUGGAGE
LAMP TEST Vo l ta g e
M19 49 Ground ON
0V
OFF Battery voltage
ALLIA0417GB
BCM Cargo lamp
Continuity
Connector Terminal Connector Terminal
M19 (A) 49B153 (B) 1Yes
ALLIA0418GB
Revision: March 2010 2008 QX56

IGNITION KEYHOLE ILLUMINATION CONTROL CIRCUIT
INL-23
< COMPONENT DIAGNOSIS >
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IGNITION KEYHOLE ILLUMI NATION CONTROL CIRCUIT
DescriptionINFOID:0000000001601399
Controls the ignition keyhole illumination (ground side) to turn the ignition keyhole illumination ON and OFF.
Component Function CheckINFOID:0000000001601400
CAUTION:
Before performing the diagnosis, check that the following is normal.
• Battery saver output/power supply circuit
• Ignition keyhole il lumination bulb
1.CHECK IGNITION KEYHOLE ILLUMINATION OPERATION
CONSULT-III
1. Turn the ignition switch ON.
2. Select “IGN ILLUM” of BCM (INT LAMP) active test item.
3. While operating the test item, check that the ignition keyhole illumination turns ON/OFF
Is the inspection result normal?
YES >> Ignition keyhole illumination circuit is normal.
NO >> Refer to INL-23, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001601401
1.CHECK IGNITION KEYHOLE OUTPUT
CONSULT-III
1. Turn ignition switch ON.
2. Select “IGN ILLUM” of BCM (INT LAMP) active test item.
3. While operating the test item, check voltage between BCM con- nector M18 terminal 1 and ground.
Is the inspection result normal?
YES >> Ignition keyhole illumination control circuit is operating normally.
Fixed ON>>GO TO 3
Fixed OFF>>GO TO 2
2.CHECK IGNITION KEYHOLE I LLUMINATION OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector M18 and ignition keyhole illumina- tion connector.
3. Check continuity between BCM connector M18 (A) terminal 1 and ignition keyhole illumination connector M150 (B) terminal 2.
Is the inspection result normal?
ON : Ignition keyhole illumination ON
OFF : Ignition keyhole illumination OFF
Connector Terminal — IGN ILLUM Voltage
M18 1 Ground ON
0V
OFF Battery voltage
ALLIA0420GB
BCM Ignition keyhole illumination
Continuity
Connector Terminal Connector Terminal
M18 (A) 1 M150 (B) 2 Yes
ALLIA0421GB
Revision: March 2010 2008 QX56

INL-56
< SYMPTOM DIAGNOSIS >
INTERIOR LIGHTING SYSTEM SYMPTOMS
SYMPTOM DIAGNOSIS
INTERIOR LIGHTING SYSTEM SYMPTOMS
Symptom TableINFOID:0000000001601405
CAUTION:
Perform the self-diagnosis with CONSULT-III before the symptom diagnosis. Perform the trouble diag-
nosis if any DTC is detected.
Symptom Possible causeInspection item
All of the following lamps do not turn ON
• Front room/map lamp assembly
• Personal lamp 2nd and 3rd row
• Cargo room lamp
• Front and rear step lamps
• Vanity mirror lamps
• Ignition keyhole illumination
• Puddle lamps
•Foot lamps • Harness between BCM and each
interior room lamp
•BCM Battery saver output/power supply
circuit
Refer to
INL-15
.
Some or all of the following interior room lamps do not
turn ON/OFF
• Puddle lamps
• Front room/map lamp assembly
• Personal lamp 2nd row
• Personal lamp 3rd row • Harness between BCM and each
door switch
• Harness between BCM and each interior room lamp
•BCM Door switch circuit
Refer to
DLK-67
.
Interior room lamp control circuit
Refer to INL-17
.
Some or all of the following lamps do not turn ON/OFF
• Front step lamps
• Rear step lamps
•Foot lamps • Harness between BCM and step
lamps and foot lamps
•BCM Step lamp circuit
Refer to
INL-19
.
Cargo lamp does not turn ON/OFF • Harness between BCM and cargo
lamp
•BCM Cargo lamp co
ntrol circuit
Refer to INL-21
.
Ignition keyhole illumination does not turn ON/OFF • Harness between BCM and ignition
keyhole illumination
•BCM Ignition keyhole illumination control
circuit
Refer to
INL-23
.
Interior room lamp timer does not activate.
(It turns ON/ OFF when the door opens/closes.) —Check the interior room lamp setting.
Refer to
INL-11
.
Interior room lamp battery saver does not activate. —Check the interior room lamp battery
saver setting.
Refer to
INL-13
.
Revision: March 2010 2008 QX56

PRECAUTIONSINL-57
< PRECAUTION >
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000004900917
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the battery, and wait at least 3 minutes before performing any service.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000004900918
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecti ng both battery cables with the ignition knob in the
″ LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS , an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
Revision: March 2010 2008 QX56

INL-58
< PRECAUTION >
PRECAUTIONS
5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of a ll control units using CONSULT-III.
General precautions for service operationsINFOID:0000000001534341
• When removing or disassembling any part, be careful not to damage or deform it. Protect parts which may
get in the way with cloth.
• When removing parts with a screw driver or other tool , protect parts by wrapping them with vinyl or tape.
• Keep removed parts protected with cloth.
• If an non-reuseable part is removed, replace it with a new one.
• After re-assembly has been completed, make sure each part functions correctly.
• Never work with wet hands.
• Turn the lighting switch OFF befor e disconnecting and connecting the connector.
• Do not use organic solvent (paint thinner or gasoline) to clean lamps or remove sealant residue.
Revision: March 2010 2008 QX56

INTERIOR ROOM LAMPINL-59
< ON-VEHICLE REPAIR >
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ON-VEHICLE REPAIR
INTERIOR ROOM LAMP
Removal and InstallationINFOID:0000000001534338
MAP LAMP
Removal
1. Disconnect the negative battery terminal.
2. Remove overhead console (3). Refer to INT-17, "
Removal and
Installation".
3. Disconnect connectors (4) and re move the map lamp screws
(1), then remove map lamp (2) from overhead console.
Installation
Installation is in the reverse order of removal.
Bulb Replacement
1. Disconnect the negative battery terminal.
2. Using a suitable tool (A), remove map lamp lens (1).
3. Release one side of the bulb (2) from the tab, then pull straight downward to remove.
CAUTION:
Wrap a cloth around tool to protect the housing and lens.
VANITY MIRROR LAMP
Removal
The vanity mirror lamp is replaced as part of the sunvisor assembly. Refer to INT-17, "Removal and Installa-
tion".
Installation
Installation is in the reverse order of removal.
Bulb Replacement
ALLIA0318ZZ
Map lamp bulb : 12V - 8W
ALLIA0319ZZ
Revision: March 2010 2008 QX56

INL-60
< ON-VEHICLE REPAIR >
INTERIOR ROOM LAMP
1. Disconnect the negative battery terminal.
2. Using a suitable tool (A), release the tabs and remove the vanitymirror lamp lens (1).
3. Release one side of the bulb (2) from the tab, then pull straight out to remove.
CAUTION:
Wrap a cloth around tool to protect the housing and lens.
GLOVE BOX LAMP
Removal
1. Remove instrument lower panel RH and glove box. Refer to IP-17, "Removal and Installation".
2. Rotate glove box lamp socket and rotate counterclockwise to release from steering member.
Installation
Installation is in the reverse order of removal.
Bulb Replacement
1. Disconnect the negative battery terminal.
2. Remove instrument lower panel RH and glove box. Refer to IP-17, "
Removal and Installation".
3. Pull bulb (2) straight out from glove box lamp socket (1) to remove.
STEP LAMP
Removal
Vanity mirror lamp bulb : 12V - 1.8W
ALLIA0320ZZ
Glove box lamp bulb : 12V - 3.4W
ALLIA0321ZZ
Revision: March 2010 2008 QX56