2007 INFINITI QX56 battery

BODY REPAIR
BL-165
< SERVICE INFORMATION >
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1. When repairing and painting a portion of the body adjacent to plastic parts, consider their characteristics
(influence of heat and solvent) and remove them if necessary or take suitable measures to protect them.
2. Plastic parts should be repaired and painted using methods suiting the materials
, characteristics.
Abbre-
viationMaterial nameHeat resisting
temperature
°C (°F)Resistance to gasoline and
solventsOther cautions
PE Polyethylene 60 (140)Gasoline and most solvents are
harmless if applied for a very
short time (wipe up quickly).Flammable
PVC Polyvinyl Chloride 80 (176) Same as above.Poison gas is emitted
when burned.
EPM/
EPDMEthylene Propylene (Diene) rub-
ber80 (176) Same as above. Flammable
TPO/
TPRThermoplastic Olefine/
Thermoplastic Rubber80 (176) Same as above. Flammable
PP Polypropylene 90 (194) Same as above.Flammable, avoid bat-
tery acid.
UP Polyester thermoset 90 (194) Same as above. Flammable
PS Polystyrene 80 (176) Avoid solvents. Flammable
ABSAcrylonitrile Butadiene Styrene
resin80 (176) Avoid gasoline and solvents.
AES Acrylonitrile Ethylene Styrene 80 (176) Same as above.
PMMA Polymethyl Methacrylate 85 (185) Same as above.
AAS Acrylonitrile Acrylic Styrene 85 (185) Same as above.
AS Acrylonitrile Styrene 85 (185) Same as above.
EVA Polyvinyl Ethyl Acetate 90 (194) Same as above.
ASA Acrylonitrile Styrene Acrylate 100 (222) Same as above. Flammable
PPO/
PPEPolyphenylene Oxide/
Polyphenylene Ether110 (230) Same as above.
PC Polycarbonate 120 (248) Same as above.
PAR Polyacrylate 180 (356) Same as above.
L-
LDPELenear Low Density PE 45 (100)Gasoline and most solvents are
harmless.Flammable
PUR Polyurethane 90 (194) Same as above.
TPU Thermoplastic Urethane 110 (230) Same as above.
PPC Polypropylene Composite 115 (239) Same as above. Flammable
POM Polyacetal 120 (248) Same as above. Avoid battery acid.
PBT+P
CPolybutylene Terephtha-
late+Polycarbonate120 (248) Same as above. Flammable
PA Polyamide (Nylon) 140 (284) Same as above.Avoid immersing in wa-
ter.
PBT Polybutylene Terephthalate 140 (284) Same as above.
FRP Fiber Reinforced Plastics 170 (338) Same as above. Avoid battery acid.
PET Polyethylene Terephthalate 180 (356) Same as above.
PEI Polyetherimide 200 (392) Same as above.

BR-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000003532717
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 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 whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoperative, 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 incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
Precaution for Brake SystemINFOID:0000000003532718
• Always use recommended brake fluid. Refer to MA-10 .
• Do not reuse drained brake fluid.
• Be careful not to splash brake fluid on painted areas.
• To clean or wash all parts of master cylinder, disc brake caliper and wheel cylinder, use clean brake fluid.
• Do not use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.
• Use flare nut wrench when removing and installing brake tube.
• Always check tightening torque when installing brake lines.
• Before working, turn ignition switch to OFF and disconnect con-
nectors for ABS actuator and electric unit (control unit) or battery
terminals.
• Burnish the brake contact surfaces after refinishing or replacing
drums or rotors, after replacing pads or linings, or if a soft pedal
occurs at very low mileage.
Refer to BR-20, "
Disassembly and Assembly of Brake Caliper" .
WARNING:
• Clean brake pads and shoes with a waste cloth, then wipe
with a dust collector.
SBR686C

BR-8
< SERVICE INFORMATION >
BRAKE FLUID
BRAKE FLUID
On Board InspectionINFOID:0000000003532724
LEVEL CHECK
• Make sure the fluid level in reservoir tank is within the standard
(between MAX and MIN lines).
• Visually check around reservoir tank for fluid leaks.
• If fluid level is excessively low, check brake system for leaks.
• If brake warning lamp remains illuminated after parking lever is
released, check brake system for fluid leakage.
Drain and RefillINFOID:0000000003532725
CAUTION:
• Refill with new brake fluid. Refer to MA-10
.
• Do not reuse drained brake fluid.
• Do not let brake fluid splash on the painted surfaces of the body. This might damage the paint, so
when splashing it, immediately wipe off the area and wash away with water.
• Before servicing, disconnect actuator connector or battery negative cable.
1. Connect a vinyl tube to each bleed valve.
2. Depress brake pedal, loosen each bleed valve, and gradually
remove brake fluid.
3. Make sure there is no foreign material in reservoir tank, and refill
with new brake fluid.
4. Rest foot on brake pedal. Loosen bleed valve. Slowly depress
pedal until it stops. Tighten bleed valve. Release brake pedal.
Repeat this process a few times, then pause to add new brake
fluid to master cylinder. Continue until new brake fluid flows out.
Bleed air from brake system. Refer to BR-8, "
Bleeding Brake
System" .
Bleeding Brake SystemINFOID:0000000003532726
CAUTION:
While bleeding, pay attention to master cylinder fluid level.
1. Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector or battery
negative cable.
2. Connect a vinyl tube to the rear right bleed valve.
3. Fully depress brake pedal 4 to 5 times.
LFIA0225E
SBR419C
SBR995

PRECAUTIONS
BRC-3
< SERVICE INFORMATION >[VDC/TCS/ABS]
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SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000003532761
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 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 whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoperative, 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 incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
Precaution for Brake SystemINFOID:0000000003532762
CAUTION:
• Refer to MA-10
for recommended brake fluid.
• Never reuse drained brake fluid.
• Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on painted areas, wash it away with water immediately.
• To clean or wash all parts of master cylinder and disc brake caliper, use clean brake fluid.
• Never use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic sys-
tem.
• Use flare nut wrench when removing and installing brake
tube.
• If a brake fluid leak is found, the part must be disassembled
without fail. Then it has to be replaced with a new one if a
defect exists.
• Turn the ignition switch OFF and remove the connector of the
ABS actuator and electric unit (control unit) or the battery ter-
minal before performing the work.
• Always torque brake lines when installing.
• Burnish the brake contact surfaces after refinishing or replac-
ing rotors, after replacing pads, or if a soft pedal occurs at
very low mileage.
Refer to BR-20, "
Disassembly and Assembly of Brake Caliper" (front disc brake) or BR-26, "Brake
Caliper" (rear disc brake).
WARNING:
• Clean brake pads and shoes with a waste cloth, then wipe with a dust collector.
Precaution When Using CONSULT-IIINFOID:0000000003532763
When connecting CONSULT-II to data link connector, connect them through CONSULT-II CONVERTER.
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
CHECK POINTS FOR USING CONSULT-II
1. Has CONSULT-II been used without connecting CONSULT-II CONVERTER on this vehicle?
SBR686C

BRC-4
< SERVICE INFORMATION >[VDC/TCS/ABS]
PRECAUTIONS
• If YES, GO TO 2.
• If NO, GO TO 5.
2. Is there any indication other than indications relating to CAN communication system in the self-diagnosis
results?
• If YES, GO TO 3.
• If NO, GO TO 4.
3. Based on self-diagnosis results unrelated to CAN communication, carry out the inspection.
4. Malfunctions may be detected in self-diagnosis depending on control units carrying out CAN communica-
tion. Therefor, erase the self-diagnosis results.
5. Diagnose CAN communication system. Refer to LAN-7
.
Precaution for Brake ControlINFOID:0000000003532764
• During ABS operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
normal.
• Just after starting vehicle, the brake pedal may vibrate or a motor operating noise may be heard from engine
compartment. This is a normal status of operation check.
• Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel, or
snow-covered (fresh, deep snow) roads.
• When an error is indicated by ABS or another warning lamp, collect all necessary information from customer
(what symptoms are present under what conditions) and check for simple causes before starting diagnosis.
Besides electrical system inspection, check booster operation, brake fluid level, and fluid leaks.
• If incorrect tire sizes or types are installed on the vehicle or brake pads are not Genuine NISSAN parts, stop-
ping distance or steering stability may deteriorate.
• If there is a radio, antenna or related wiring near control module, ABS function may have a malfunction or
error.
• If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness
pinches, open circuits or improper wiring.
• If the following components are replaced with non-genuine components or modified, the VDC OFF indicator
lamp and SLIP indicator lamp may turn on or the VDC system may not operate properly. Components
related to suspension (shock absorbers, struts, springs, bushings, etc.), tires, wheels (exclude specified
size), components related to brake system (pads, rotors, calipers, etc.), components related to engine (muf-
fler, ECM, etc.), components related to body reinforcement (roll bar, tower bar, etc.).
• Driving with broken or excessively worn suspension components, tires or brake system components may
cause the VDC OFF indicator lamp and the SLIP indicator lamp to turn on, and the VDC system may not
operate properly.
• When the TCS or VDC is activated by sudden acceleration or sudden turn, some noise may occur. The
noise is a result of the normal operation of the TCS and VDC.
• When driving on roads which have extreme slopes (such as mountainous roads) or high banks (such as
sharp curves on a freeway), the VDC may not operate normally, or the VDC warning lamp and the SLIP indi-
cator lamp may turn on. This is not a problem if normal operation can be resumed after restarting the engine.
• Sudden turns (such as spin turns, acceleration turns), drifting, etc. with VDC turned off may cause the yaw
rate/side/decel G sensor to indicate a problem. This is not a problem if normal operation can be resumed
after restarting the engine.
Precaution for CAN SystemINFOID:0000000003532765
• Do not apply voltage of 7.0V or higher to terminal to be measured.
• Maximum open terminal voltage of tester in use must be less than 7.0V.
• Before checking harnesses, turn ignition switch OFF and disconnect battery negative cable.

TROUBLE DIAGNOSIS
BRC-23
< SERVICE INFORMATION >[VDC/TCS/ABS]
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• If there is damage to the connection flare nut or ABS actuator and electric unit (control unit) threads,
replace the damaged part and recheck for leaks.
• When there is fluid leaking or seeping from a fluid connection, use a clean cloth to wipe off the fluid and
recheck for leaks. If fluid is still seeping out, replace the damaged part. If the fluid is leaking at the ABS
actuator and electric unit (control unit), replace the ABS actuator and electric unit (control unit) assem-
bly.
CAUTION:
The ABS actuator and electric unit (control unit) cannot be disassembled and must be replaced
as an assembly.
3. Check the brake pads for excessive wear.
POWER SYSTEM TERMINAL LOOSENESS AND BATTERY INSPECTION
Make sure the battery positive cable, negative cable and ground connection are not loose. In addition, make
sure the battery is sufficiently charged.
ABS WARNING LAMP, SLIP INDICATOR LAMP AND VDC OFF INDICATOR LAMP INSPECTION
1. Make sure ABS warning lamp, SLIP indicator lamp and VDC OFF indicator lamp (when VDC OFF switch
is off), turn on for approximately 2 seconds when the ignition switch is turned ON. If they do not, check the
VDC OFF indicator lamp and the VDC OFF switch. Refer to BRC-53, "
Component Inspection". Check
CAN communications. If there are no errors with the VDC OFF switch or CAN communication system,
replace combination meter. Refer to DI-5
.
2. Make sure the lamps turn off approximately 2 seconds after the ignition switch is turned ON. If the lamp
does not turn off, conduct self-diagnosis of ABS actuator and electric unit (control unit). If no malfunctions
are detected in self-diagnosis, replace combination meter. Refer to DI-5
.
3. With the engine running, make sure the VDC OFF indicator lamp turns on and off when the VDC OFF
switch is turned on and off. If the indicator lamp status does not correspond to switch operation, check the
VDC OFF switch. Refer to BRC-53, "
Component Inspection".
4. After conducting the self-diagnosis, be sure to erase the error memory. Refer to BRC-26, "
CONSULT-II
Function (ABS)".
Warning Lamp and Indicator TimingINFOID:0000000003532781
×: ON
—: OFF
Control Unit Input/Output Signal StandardINFOID:0000000003532782
REFERENCE VALUE FROM CONSULT-II
CAUTION:
The display shows the control unit calculation data, so a normal value might be displayed even in the
event the output circuit (harness) is open or short circuited.
ConditionABS
warning lampVDC OFF
indicator lampSLIP
indicator lampRemarks
When the ignition switch is OFF — — — —
After the ignition switch is turned ON
for approx. 1 second×××—
After the ignition switch is turned ON
for approx. 2 seconds——— —
When the VDC OFF switch is
pressed (VDC function OFF)—×——
ABS/TCS/VDC malfunction×××—
××—When the ABS actuator and elec-
tric unit (control unit) is malfunc-
tioning (power supply or ground
malfunction).
When the VDC is malfunctioning —××—

BRC-24
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Monitor item Display contentData monitor
Note: Error inspection
checklist
ConditionReference value in
normal operation
N POSI SIGPNP switch signal ON/
OFF conditionA/T shift position = N position ON
LAN-7
A/T shift position = other than N
positionsOFF
P POSI SIGPNP switch signal ON/
OFF conditionA/T shift position P position ON
LAN-7
A/T shift position = other than P
positionsOFF
GEAR A/T gear position1st gear 1
— 2nd gear 2
3rd gear 3
4th gear 4
5th gear 5
FR RH SENSOR
FR LH SENSOR
RR RH SENSOR
RR LH SENSORWheel speedVehicle stopped 0 [km/h (MPH)]
BRC-34, "
Wheel Sensor
System Inspection"Vehicle running (Note 1)Almost in accor-
dance with speed-
ometer display
(within ±10%)
ACCEL POS SIG Open/close condition
of throttle valve (linked
with accelerator pedal).Accelerator pedal not de-
pressed (ignition switch is ON)0%
LAN-7
Depress accelerator pedal (ig-
nition switch is ON)0 to 100%
ENGINE SPEED With engine runningWith engine stopped 0 rpm
BRC-35, "
Engine System
Inspection"Engine runningAlmost in accor-
dance with ta-
chometer display
STR ANGLE SIGSteering angle detect-
ed by steering angle
sensorStraight-ahead Approx. 0 deg
BRC-36, "
Steering Angle
Sensor System"Steering wheel turned –756 to 756 deg
YAW RATE SENYaw rate detected by
yaw rate sensorVehicle stopped Approx. 0 d/sBRC-37, "
Yaw Rate/Side/
Decel G Sensor System
Inspection"Vehicle running –100 to 100 d/s
SIDE G-SENSORTransverse G detected
by side G-sensorVehicle stopped
Approx. 0 m/s
2BRC-37, "Yaw Rate/Side/
Decel G Sensor System
Inspection"Vehicle running
–16.7 to 16.7 m/s2
BATTERY VOLTBattery voltage sup-
plied to ABS actuator
and electric unit (con-
trol unit)Ignition switch ON 10 to 16VBRC-41, "
ABS/TCS/VDC
Control Unit Power and
Ground Systems Inspec-
tion"
STOP LAMP SWStop lamp switch oper-
ationBrake pedal depressed ONBRC-40, "
Stop Lamp
Switch System Inspec-
tion"Brake pedal not depressed OFF
OFF SWVDC OFF switch
ON/OFF status VDC OFF switch ON
(When VDC OFF indicator
lamp is ON)ON
BRC-53, "
Component In-
spection"VDC OFF switch OFF
(When VDC OFF indicator
lamp is OFF)OFF
ABS WARN LAMPABS warning lamp ON
condition (Note 2)ABS warning lamp ON ON
—
ABS warning lamp OFF OFF

BRC-28
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
DECEL G SEN SET
[C1160]ABS decel sensor adjustment is incomplete.BRC-49, "Inspection for
Self-Diagnosis Result
"DECEL G SEN SET""
ST ANGL SEN SAFE
[C1163]When steering angle sensor is in safe mode.BRC-47, "Steering Angle
Sensor Safe Mode In-
spection"
ST ANG SEN CIRCUIT
[C1143]Neutral position of steering angle sensor is dislocated, or steering
angle sensor is malfunctioning.BRC-36, "Steering Angle
Sensor System"
YAW RATE SENSOR
[C1145]Yaw rate sensor has generated an error, or yaw rate sensor signal
line is open or shorted.BRC-37, "Yaw Rate/
Side/Decel G Sensor
System Inspection"
FR LH IN ABS SOL
[C1120]Circuit of front LH IN ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
BRC-38, "
Solenoid and
VDC Change-Over Valve
System Inspection"
FR LH OUT ABS SOL
[C1121]Circuit of front LH OUT ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
RR RH IN ABS SOL
[C1126]Circuit of rear RH IN ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
RR RH OUT ABS SOL
[C1127]Circuit of rear RH OUT ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
FR RH IN ABS SOL
[C1122]Circuit of front RH IN ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
FR RH OUT ABS SOL
[C1123]Circuit of front RH OUT ABS solenoid is open or shorted, or con-
trol line is open or shorted to power supply or ground.
RR LH IN ABS SOL
[C1124]Circuit of rear LH IN ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
RR LH OUT ABS SOL
[C1125] Circuit of rear LH OUT ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
CV1
[C1164]Front side VDC switch-over solenoid valve (cut valve) is open or
shorted, or control line is open or shorted to power supply or
ground.
CV2
[C1165]Rear side VDC switch-over solenoid valve (cut valve) is open or
shorted, or control line is open or shorted to power supply or
ground.
SV1
[C1166]Front side VDC switch-over solenoid valve (suction valve) is open
or shorted, or control line is open or shorted to power supply or
ground.
SV2
[C1167]Rear side VDC switch-over solenoid valve (suction valve) is open
or shorted, or control line is open or shorted to power supply or
ground.
PUMP MOTOR
[ C 1111 ]During actuator motor operation with ON, when actuator motor
turns OFF or when control line for actuator motor relay is open.BRC-39, "
Actuator Mo-
tor, Motor Relay, and Cir-
cuit Inspection"During actuator motor operation with OFF, when actuator motor
turns ON or when control line for relay is shorted to ground.
BATTERY VOLTAGE
[ABNORMAL]
[C1109]ABS actuator and electric unit (control unit) power voltage is too
low.BRC-41, "
ABS/TCS/VDC
Control Unit Power and
Ground Systems Inspec-
tion"
ST ANG SEN SIGNAL
[C1144]Neutral position correction of steering angle sensor is not finished.BRC-48, "Inspection for
Self-Diagnosis Result
"ST ANG SEN SIGNAL""
ST ANG SEN COM CIR
[C1156]CAN communication line or steering angle sensor has generated
an error.BRC-36, "Steering Angle
Sensor System"
G-SENSOR
[ C 111 3 ]Longitudinal G-sensor is malfunctioning, or signal line of longitu-
dinal G-sensor is open or shorted.BRC-37, "Yaw Rate/
Side/Decel G Sensor
System Inspection"
Self-diagnostic item Malfunction detecting condition Check system