2008 INFINITI QX56 service

HRN-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000004925177
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity 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 inopera tive, 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 unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified 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 Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c 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 minu tes before performing any service.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
INFOID:0000000004925178
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 disconnecting 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 pow er 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-2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .................................................................
57
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ..................................
57
General precautions for service operations ............58
ON-VEHICLE REPAIR .... ............................59
INTERIOR ROOM LAMP ................................ ...59
Removal and Installation .........................................59
ILLUMINATION .............................................. ...64
Removal and Installation .........................................64
SERVICE DATA AND SPECIFICATIONS
(SDS) .......... ................................. ...............
66
BULB SPECIFICATIONS ............................... ...66
Interior Lamp/Illumination ........................................66
Revision: March 2010 2008 QX56

DIAGNOSIS SYSTEM (BCM)INL-11
< FUNCTION DIAGNOSIS >
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DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III FunctionINFOID:0000000001601383
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
INT LAMP
INT LAMP : CONSULT-III FunctionINFOID:0000000001601384
WORK SUPPORT
BCM diagnostic test item Diagnostic mode
Description
Inspection by part WORK SUPPORT
Supports inspections and adjustments. Commands are transmitted to the BCM for
setting the status suitable for required operation, input/output signals are received
from the BCM and received data is displayed.
DATA MONITOR Displays BCM input/output data in real time. ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read. ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions.
JPLIA0093GB
Service item Setting item Setting
SET I/L D-UNLCK INTCON ON With the interior room lamp timer function
OFF Without the interior room lamp timer function
ROOM LAMP ON TIME SET MODE 1 0.5 sec.
Sets the interior room lamp gradual brightening time.
MODE 2 1 sec.
MODE 3 2 sec.
MODE 4 3 sec.
MODE 5 4 sec.
MODE 6 5 sec.
MODE 7 0 sec.
Revision: March 2010
2008 QX56

INL-12
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (BCM)
DATA MONITOR
ACTIVE TEST
ROOM LAMP OFF TIME SETMODE 1 0.5 sec.
Sets the interior room lamp gradual dimming time.
MODE 2 1 sec.
MODE 3 2 sec.
MODE 4 3 sec.
MODE 5 4 sec.
MODE 6 5 sec.
MODE 7 0 sec.
Service item
Setting item Setting
Monitor item
[Unit] Description
IGN ON SW
[ON/OFF] The switch status input from ignition switch
KEY ON SW
[ON/OFF] Key switch status input from key slot
DOOR SW-DR
[ON/OFF] The switch status input from front door switch LH
DOOR SW-AS
[ON/OFF] The switch status input from front door switch RH
DOOR SW-RR
[ON/OFF] The switch status input from rear door switch RH
DOOR SW- RL
[ON/OFF] The switch status input from rear door switch LH
BACK DOOR SW
[ON/OFF] The switch status input from back door switch
KEY CYL LK-SW
[ON/OFF] Lock switch status received from key cylinder switch by power window serial link
KEY CYL UN-SW
[ON/OFF] Unlock switch status received from key cylinder switch by power window serial link
CDL LOCK SW
[ON/OFF] Lock switch status received from door lock/unlock switch by power window serial link
CDL UNLOCK SW
[ON/OFF] Unlock switch status received from door lock/unlock switch by power window serial
link
I-KEY LOCK
[ON/OFF] Lock signal status received from remote keyless entry receiver
I-KEY UNLOCK
[ON/OFF] Unlock signal status received from remote keyless entry receiver
Test item
Operation Description
INT LAMP ON
Outputs the interior room lamp control signal to turn the front room/map lamp, per-
sonal lamps (Map lamp switch is in DOOR position) and puddle lamps ON.
OFF Stops the interior room lamp control signal to turn the front room/map lamp, personal
lamps (Map lamp switch is in DOOR position) and puddle lamps OFF.
IGN ILLUM ON
Outputs the ignition keyhole illumination signal to turn the ignition keyhole illumination
ON.
OFF Stops the ignition keyhole illumination signal to turn the ignition keyhole illumination
OFF.
STEP LAMP TEST ON Outputs the step lamp control signal to turn the step lamps and foot lamps ON.
OFF Stops the step lamp control signal to turn the step lamps and foot lamps OFF.
Revision: March 2010 2008 QX56

DIAGNOSIS SYSTEM (BCM)INL-13
< FUNCTION DIAGNOSIS >
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BATTERY SAVER
BATTERY SAVER : CONSULT-III FunctionINFOID:0000000001601385
WORK SUPPORT
DATA MONITOR
ACTIVE TEST
LUGGAGE LAMP TEST ON Outputs the cargo lamp control signal to turn cargo lamp ON.
OFF Stops the cargo lamp control signal to turn cargo lamp OFF.
Test item
Operation Description
Service itemSetting item Setting
ROOM LAMP TIMER SET MODE 1
(ON)
Interior room lamp timer activates with synchronizing all doors.
MODE 2
(OFF) Interior room lamp timer activates with synchronizing the front door LH
only.
Monitor item
[Unit] Description
IGN ON SW
[ON/OFF] The switch status input from ignition switch
KEY ON SW
[ON/OFF] Key switch status input from key slot
DOOR SW-DR
[ON/OFF] The switch status input from front door switch LH
DOOR SW-AS
[ON/OFF] The switch status input from front door switch RH
DOOR SW-RR
[ON/OFF] The switch status input from rear door switch RH
DOOR SW- RL
[ON/OFF] The switch status input from rear door switch LH
BACK DOOR SW
[ON/OFF] The switch status input from back door switch
KEY CYL LK-SW
[ON/OFF] Lock switch status received from key cylinder switch by power window serial link
KEY CYL UN-SW
[ON/OFF] Unlock switch status received from key cylinder switch by power window serial link
CDL LOCK SW
[ON/OFF] Lock switch status received from door lock/unlock switch by power window serial link
CDL UNLOCK SW
[ON/OFF] Unlock switch status received from door lock/unlock switch by power window serial
link
I-KEY LOCK
[ON/OFF] Lock signal status received from remote keyless entry receiver
I-KEY UNLOCK
[ON/OFF] Unlock signal status received from remote keyless entry receiver
Test item
Operation Description
BATTERY SAVER ON Outputs the battery saver output/power supply to turn the interior lamps ON.
OFF Stops the battery saver output/power supply to turn the interior lamps OFF.
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

INL-66
< SERVICE DATA AND SPECIFICATIONS (SDS)
BULB SPECIFICATIONS
SERVICE DATA AND SPECIFICATIONS (SDS)
BULB SPECIFICATIONS
Interior Lamp/IlluminationINFOID:0000000001534337
*: Always check with the Parts Department for the latest parts information.Item
Wattage (W)*
Map Lamp 8
Vanity mirror lamp 1.8
Glove box lamp 3.4
Ste p lam p 3.8
Personal lamp 6
Footwell lamp 3.4
Cargo lamp 8
Console illumination lamp -
Revision: March 2010 2008 QX56