2010 INFINITI QX56 warning

MA-22
< ON-VEHICLE MAINTENANCE >
ENGINE MAINTENANCE
8. After the inspections, install oil pressure switch as follows:
a. Remove old liquid gasket adhering to oil pressure switch and engine.
b. Apply liquid gasket and tighten oil pressure switch to the specification.Use Genuine RTV Silicone Seal ant or equivalent. Refer to GI-15, "
Recommended Chemical Prod-
ucts and Sealants".
c. After warming up engine, make sure there is no leakage of engine oil with engine running.
ENGINE OIL : Changing Engine OilINFOID:0000000005403141
WARNING:
• Be careful not to burn yoursel f, as the engine oil is hot.
• Prolonged and repeated contact with used engine oil may
cause skin cancer. Try to avoid di rect skin contact with used
engine oil. If skin contact is made, wash thoroughly with soap
or hand cleaner as soon as possible.
1. Remove engine front undercover using power tool.
2. Warm up engine, and check for oil leakage from engine compo- nents. Refer to MA-20, "
ENGINE OIL : Inspection".
3. Stop engine and wait for 10 minutes.
4. Loosen oil filler cap, then remove drain plug.
5. Drain engine oil.
6. Install drain plug with new washer. CAUTION:
• Be sure to clean drain plug and install with new washer.
7. Refill with new engine oil. Refer to MA-13, "
Fluids and Lubricants".
Engine oil capacity (Approximate):
Unit: (US qt, Imp qt)
CAUTION:
• The refill capacity depends on the engine oil temperature and drain time. Use these specifica-
tions for reference only.
• Always use the oil level gauge to determine when the proper amount of engine oil is in the engine.
8. Warm up engine and check area around drain plug and oil filter for oil leakage.
9. Stop engine and wait for 10 minutes.
10. Check engine oil level. Refer to MA-20, "
ENGINE OIL : Inspection".
OIL FILTER
OIL FILTER : Removal and InstallationINFOID:0000000005403142
REMOVAL
Oil pressure switch torque : 14.8 N·m (1.5 kg-m, 11 ft-lb)
Oil pan drain plug : 34.3 N·m (3.5 kg-m, 25 ft-lb)
KBIA2498E
Drain and refill With oil filter change
6.5 (6 7/8, 5-3/4)
Without oil filter change 6.2 (6-1/2, 5-1/2)
Dry engine (engine overhaul) 7.6 (8, 6-3/4)
Revision: April 20092010 QX56

ENGINE MAINTENANCEMA-23
< ON-VEHICLE MAINTENANCE >
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1. Drain the engine oil. Refer to
MA-22, "ENGINE OIL : Changing
Engine Oil".
2. Remove the oil filter using Tool.
WARNING:
• Be careful not to get burned when the engine and engine
oil are hot.
CAUTION:
• The oil filter is provided with a relief valve.
• Use Genuine NISSAN oil filter or equivalent.
• When removing, prepare a shop cloth to ab sorb any engine oil leakage or spillage.
• Do not allow engine oil to adhere to the drive belts.
• Completely wipe off any engine oil that adheres to the engine and the vehicle.
INSTALLATION
1. Remove foreign materials adhering to the oil filter installation surface.
2. Apply engine oil to the oil seal circumference of the new oil filter.
3. Screw the oil filter manually until it touches the installation sur-
face, then tighten it by 2/3 turn. Or tighten to specification.
4. Refill the engine with new engine oil. Refer to MA-22, "
ENGINE
OIL : Changing Engine Oil".
5. Inspect the engine for oil leakage. Follow the "INSPECTION AFTER INSTALLATION" procedure.
INSPECTION AFTER INSTALLATION
1. Check the engine oil level. Refer to MA-20, "ENGINE OIL : Inspection".
2. Start the engine and check for engine oil leakage.
3. Stop the engine and wait for 10 minutes.
4. Check the engine oil level and add engine oil as required.
SPARK PLUG
Tool number : KV10115801 (J-38956)
WBIA0388E
SMA010
Oil filter : 17.7 N·m (1.8 kg-m, 13 ft-lb)
SMA229B
Revision: April 20092010 QX56

MA-34
< ON-VEHICLE MAINTENANCE >
CHASSIS AND BODY MAINTENANCE
Wheel balance (Maximum allowable imbalance):
WHEELS : RotationINFOID:0000000005403160
NOTE:
Follow the maintenance schedule for tire rotation service intervals. Refer to MA-9, "
Schedule 1" .
1. Rotate the tires on each side from front to back as shown. Do not include the spare tire when rotating the tires.
CAUTION:
When installing wheel s, tighten them diagonally by dividing
the work two to three times in order to prevent the wheels
from developing any distortion.
2. Adjust the tire pressure to specification. Refer to WT-52, "
Tire" .
3. After the tire rotation, retighten the wheel nuts after the vehicle has been driven for 1,000 km (600 miles), and also after every
wheel and tire have been installed such as after repairing a flat tire.
BRAKE FLUID LEVEL AND LEAKS
BRAKE FLUID LEVEL AND LEAK S : On Board InspectionINFOID:0000000005403161
LEVEL CHECK
• Make sure the fluid level in reservoir tank is between MAX and MIN
lines as shown.
• 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 brake pedal is released, check brake system for fluid leaks.
BRAKE LINES AND CABLES
BRAKE LINES AND CABLES : Ch ecking Brake Line and CablesINFOID:0000000005259676
1. Check the brake lines and hoses for cracks, deterioration, and
other damage. Replace any damaged parts.
CAUTION:
If brake fluid leaks are visible around the brake line joints,
retighten the joint, or replace damaged parts as necessary.
2. Check for brake fluid leaks by fully depressing brake pedal while engine is running.
DISC BRAKE
Maximum allowable imbalance Dynamic (At rim flange) 5 g (0.18 oz) (one side)
Static
10 g (0.35 oz)
Wheel nut torque : 133 N·m (14 kg-m, 98 ft-lb)
SMA829C
LFIA0225E
SBR389C
Revision: April 20092010 QX56

MIR-8
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005394721
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:0000000005369282
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: April 20092010 QX56

MWI
MWI-1
DRIVER INFORMATION & MULTIMEDIA
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CONTENTS
METER, WARNING LAMP & INDICATOR
BASIC INSPECTION ....... .............................4
DIAGNOSIS AND REPAIR WORKFLOW ..... .....4
Work Flow ........................................................... ......4
FUNCTION DIAGNOSIS ...............................5
METER SYSTEM ............................................ .....5
METER SYSTEM .........................................................5
METER SYSTEM : System Diagram ........................5
METER SYSTEM : System Description ....................5
METER SYSTEM : Arrangem ent of Combination
Meter ................................................................... ......
6
METER SYSTEM : Component Parts Location ........7
METER SYSTEM : Component Description ....... ......7
SPEEDOMETER ..........................................................8
SPEEDOMETER : System Diagram ................... ......8
SPEEDOMETER : System Description .....................8
SPEEDOMETER : Component Parts Location .........9
SPEEDOMETER : Component Description ........ ......9
TACHOMETER ...................................................... ......9
TACHOMETER : System Diagram ...........................9
TACHOMETER : System De scription .....................10
TACHOMETER : Component Parts Location ..... ....10
TACHOMETER : Component Description ..............10
ENGINE COOLANT TEMPERATURE GAUGE .... ....10
ENGINE COOLANT TEMPERATURE GAUGE :
System Diagram ......................................................
11
ENGINE COOLANT TEMPERATURE GAUGE :
System Description .................................................
11
ENGINE COOLANT TEMPERATURE GAUGE :
Component Parts Location ......................................
11
ENGINE COOLANT TEMPERATURE GAUGE :
Component Description ...........................................
12
FUEL GAUGE ........................................................ ....12
FUEL GAUGE : System Diagram ...........................12
FUEL GAUGE : System Description .......................12
FUEL GAUGE : Component Parts Location ...........12
FUEL GAUGE : Component Description ............. ....13
ENGINE OIL PRESSURE GAUGE ............................13
ENGINE OIL PRESSURE GAUGE : System Dia-
gram .................................................................... ....
13
ENGINE OIL PRESSURE GAUGE : System De-
scription ...................................................................
13
ENGINE OIL PRESSURE GAUGE : Component
Parts Location ..........................................................
14
ENGINE OIL PRESSURE GAUGE : Component
Description ...............................................................
14
VOLTAGE GAUGE ................................................ ....14
VOLTAGE GAUGE : System Diagram ....................15
VOLTAGE GAUGE : System Description ................15
VOLTAGE GAUGE : Component Parts Location ....15
VOLTAGE GAUGE : Component Description .........16
ODO/TRIP METER ................................................. ....16
ODO/TRIP METER : System Diagram ....................16
ODO/TRIP METER : System Description ................16
ODO/TRIP METER : Component Parts Location ....16
ODO/TRIP METER : Component Description .........17
SHIFT POSITION INDICATOR .............................. ....17
SHIFT POSITION INDICATOR : System Diagram ....17
SHIFT POSITION INDICATOR : System Descrip-
tion ...........................................................................
17
SHIFT POSITION INDICATOR : Component
Parts Location ..........................................................
18
SHIFT POSITION INDICATOR : Component De-
scription ............................................................... ....
18
WARNING LAMPS/INDICATOR LAMPS .............. ....18
WARNING LAMPS/INDICATOR LAMPS : System
Diagram ............................................................... ....
18
WARNING LAMPS/INDICATOR LAMPS : System
Description ........................................................... ....
19
WARNING LAMPS/INDICATOR LAMPS : Com-
ponent Parts Location ..............................................
19
WARNING LAMPS/INDICATOR LAMPS : Com-
ponent Description ...................................................
19
Revision: April 20092010 QX56

MWI-2
INFORMATION DISPLAY .........................................19
INFORMATION DISPLAY : System Diagram .........20
INFORMATION DISPLAY : System Description ....20
INFORMATION DISPLAY : Component Parts Lo-
cation ................................................................... ...
21
INFORMATION DISPLAY : Component Descrip-
tion ....................................................................... ...
21
DIAGNOSIS SYSTEM (METER) .......................22
Diagnosis Description .......................................... ...22
CONSULT-III Function (METER/M&A) ................ ...23
COMPONENT DIAGNOSIS ........................26
DTC U1000 CAN COMMUNICATION ............ ...26
DTC Logic ............................................................ ...26
Diagnosis Procedure .............................................26
DTC B2205 VEHICLE SPEED CIRCUIT ...........27
Description ........................................................... ...27
DTC Logic ...............................................................27
Diagnosis Procedure .............................................27
POWER SUPPLY AND GROUND CIRCUIT .....28
COMBINATION METER ........................................ ...28
COMBINATION METER : Diagnosis Procedure ....28
BCM (BODY CONTROL MODULE) ...................... ...29
BCM (BODY CONTROL MODULE) : Diagnosis
Procedure ...............................................................
29
IPDM E/R (INTELLIGENT POWER DISTRIBU-
TION MODULE ENGINE ROOM) .......................... ...
30
IPDM E/R (INTELLIGENT POWER DISTRIBU-
TION MODULE ENGINE ROOM) : Diagnosis Pro-
cedure .....................................................................
30
FUEL LEVEL SENSOR SIGNAL CIRCUIT .......32
Description ........................................................... ...32
Component Function Check ...................................32
Diagnosis Procedure .............................................32
Component Inspection ............................................33
OIL PRESSURE SWITCH SIGNAL CIRCUIT ...34
Description ..............................................................34
Component Function Check ...................................34
Diagnosis Procedure ..............................................34
Component Inspection ............................................34
PARKING BRAKE SWITCH SIGNAL CIR-
CUIT ...................................................................
35
Description ........................................................... ...35
Component Function Check ...................................35
Diagnosis Procedure ..............................................35
Component Inspection ............................................35
WASHER LEVEL SWITCH SIGNAL CIRCUIT ...36
Description ........................................................... ...36
Diagnosis Procedure ..............................................36
Component Inspection ............................................36
CLOCK ..............................................................37
Wiring Diagram .................................................... ...37
ECU DIAGNOSIS .......................................39
COMBINATION METER ................................. ...39
Reference Value .................................................. ...39
Wiring Diagram .......................................................41
Fail Safe ..................................................................58
DTC Index ...............................................................59
BCM (BODY CONTROL MODULE) ..................61
Reference Value .................................................. ...61
Terminal Layout ......................................................64
Physical Values .......................................................64
Wiring Diagram .......................................................70
Fail Safe .................................................................74
DTC Inspection Priority Chart ...............................75
DTC Index ..............................................................75
IPDM E/R (INTELLIGENT POWER DISTRI-
BUTION MODULE ENGINE ROOM) .................
77
Reference Value .................................................. ...77
Terminal Layout ......................................................79
Physical Values .......................................................80
Wiring Diagram .......................................................85
Fail Safe .................................................................88
DTC Index ..............................................................90
SYMPTOM DIAGNOSIS ............................91
THE FUEL GAUGE POINTER DOES NOT
MOVE .............................................................. ...
91
Description ........................................................... ...91
Diagnosis Procedure ...............................................91
THE FUEL GAUGE POINTER DOES NOT
MOVE TO "F" WHEN REFUELING ..................
92
Description ........................................................... ...92
Diagnosis Procedure ...............................................92
THE OIL PRESSURE WARNING LAMP
DOES NOT TURN ON .................................... ...
93
Description ........................................................... ...93
Diagnosis Procedure ...............................................93
THE OIL PRESSURE WARNING LAMP
DOES NOT TURN OFF .................................. ...
94
Description ........................................................... ...94
Diagnosis Procedure ...............................................94
THE PARKING BRAKE RELEASE WARNING
CONTINUES DISPLAYING, OR DOES NOT
DISPLAY ............................................................
95
Description ........................................................... ...95
Diagnosis Procedure ...............................................95
THE LOW WASHER FLUID WARNING CON-
TINUES DISPLAYING, or DOES NOT DIS-
PLAY ..................................................................
96
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MWI
MWI-3
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Description ..........................................................
....
96
Diagnosis Procedure ...............................................96
THE DOOR OPEN WARNING CONTINUES
DISPLAYING, OR DOES NOT DISPLAY ..........
97
Description .......................................................... ....97
Diagnosis Procedure ...............................................97
PRECAUTION ..............................................98
PRECAUTIONS .............................................. ....98
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
98
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ...................................
98
ON-VEHICLE REPAIR ...............................100
COMBINATION METER .................................100
Removal and Installation ..................................... ..100
CLOCK ............................................................101
Removal and Installation .......................................101
Revision: April 20092010 QX56

MWI
METER SYSTEMMWI-5
< FUNCTION DIAGNOSIS >
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FUNCTION DIAGNOSIS
METER SYSTEM
METER SYSTEM
METER SYSTEM : System DiagramINFOID:0000000005146025
METER SYSTEM : System DescriptionINFOID:0000000005146026
COMBINATION METER
• Speedometer, odo/trip meter, tachometer, fuel gauge, engine coolant temperature gauge, engine oil pres-
sure gauge, voltage gauge and information display are controlled by the unified meter control unit, which is
built into the combination meter.
• Warning and indicator lamps are controlled by the unified meter control unit and by components connected directly to the combination meter.
• Digital meter is adopted for odo/trip meter.* *The record of the odometer is kept even if the battery cable is disconnected. The record of the trip meter is
erased when the battery cable is disconnected.
• Odo/trip meter segments can be checked in diagnosis mode.
• Meter/gauge can be checked in diagnosis mode.
AWNIA0274GB
Revision: April 20092010 QX56