engine coolant INFINITI QX56 2007 Factory Service Manual

FSU-20
< SERVICE INFORMATION >
SERVICE DATA AND SPECIFICATIONS (SDS)
*4: Target value 37° 44′ (37.73°)
*5: Target value 33° 29′ (33.48°)
*6: Some vehicles may be equipped with straight (non-adjustable) lower link bolts and washers. in order to adjust camber and caster on
these vehicles, first replace the lower link bolts and washers with adjustable (cam) bolts and washers.
Ball JointINFOID:0000000003532650
*1 Measure at cotter pin hole
*2 Measure at groove
Wheelarch Height (Unladen*1)INFOID:0000000003532651
Unit: mm (in)
*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
*2: Verify the vehicle height. If vehicle height is not within ± 10 mm (0.39 in) of the specification, perform the control unit initialization pro-
cedure. Refer to RSU-42, "
Initialization Procedure". Swinging force “A”Upper ball joint 8.1 – 103.2 N (0.8 – 10.5 kg-f, 1.8 – 23.2 lb-f) *1
Lower ball joint 11.4 – 145.5 N (1.1 – 14.8 kg-f, 2.5 – 32.7 lb-f) *2
Turning torque “B” 0.5 - 6.4 N·m (0.05 - 0.65 kg-m, 4 - 57 in-lb)
Vertical end play “C”0 mm (0 in)
SFA858AWEIA0076E
Suspension type
Air leveling*2
Applied model 2WD 4WD
Front wheelarch height (Hf)913
(35.94)931
(36.65)
Rear wheelarch height (Hr)912
(35.91)932
(36.69)
LEIA0085E

GI-50
< SERVICE INFORMATION >
TERMINOLOGY
TERMINOLOGY
SAE J1930 Terminology ListINFOID:0000000003531507
All emission related terms used in this publication in accordance with SAE J1930 are listed. Accordingly, new
terms, new acronyms/abbreviations and old terms are listed in the following chart.
NEW TERMNEW ACRONYM /
ABBREVIATIONOLD TERM
Air cleaner ACL Air cleaner
Barometric pressure BARO ***
Barometric pressure sensor-BCDD BAROS-BCDD BCDD
Camshaft position CMP ***
Camshaft position sensor CMPS Crank angle sensor
Canister *** Canister
Carburetor CARB Carburetor
Charge air cooler CAC Intercooler
Closed loop CL Closed loop
Closed throttle position switch CTP switch Idle switch
Clutch pedal position switch CPP switch Clutch switch
Continuous fuel injection system CFI system ***
Continuous trap oxidizer system CTOX system ***
Crankshaft position CKP ***
Crankshaft position sensor CKPS ***
Data link connector DLC ***
Data link connector for CONSULT-II DLC for CONSULT-II Diagnostic connector for CONSULT-II
Diagnostic test mode DTM Diagnostic mode
Diagnostic test mode selector DTM selector Diagnostic mode selector
Diagnostic test mode I DTM I Mode I
Diagnostic test mode II DTM II Mode II
Diagnostic trouble code DTC Malfunction code
Direct fuel injection system DFI system ***
Distributor ignition system DI system Ignition timing control
Early fuel evaporation-mixture heater EFE-mixture heater Mixture heater
Early fuel evaporation system EFE system Mixture heater control
Electrically erasable programmable read
only memoryEEPROM ***
Electronic ignition system EI system Ignition timing control
Engine control EC ***
Engine control module ECM ECCS control unit
Engine coolant temperature ECT Engine temperature
Engine coolant temperature sensor ECTS Engine temperature sensor
Engine modification EM ***
Engine speed RPM Engine speed
Erasable programmable read only memory EPROM ***
Evaporative emission canister EVAP canister Canister
Evaporative emission system EVAP system Canister control solenoid valve
Exhaust gas recirculation valve EGR valve EGR valve

IDX-3
A
C
D
E
F
G
H
I
J
K
L B
IDX
ALPHABETICAL INDEX
Brake fluid level ................................................. MA-28
Brake hydraulic line ........................................... BR-12
Brake inspection ................................................ MA-28
Brake lines and cables inspection ..................... MA-28
Brake master cylinder ....................................... BR-15
Brake switch ...................................... EC-572, EC-584
BRK/SW - Wiring diagram ............................... EC-585
Bulb specifications ........................................... LT-148
Bumper, front ...................................................... EI-13
Bumper, rear ....................................................... EI-15
C
Cabin air filter .................................................... MA-21
Camshaft ........................................................... EM-46
Camshaft inspection .......................................... EM-49
Camshaft position sensor (PHASE) ................ EC-369
CAN - Wiring diagram .............. EC-157, AT-93, AT-94
CAN communication EC-32, EC-156, EC-159, TF-112,
RSU-6
Canister-See EVAP canister ............................. EC-36
Center case (Transfer) ....................... TF-154, TF-167
CHARGE - Wiring diagram ............................... SC-19
Charging system ............................................... SC-17
Chassis and body maintenance ........................ MA-21
Chassis and body maintenanceSchedule 1 ........ MA-8
Chassis and body maintenanceSchedule 2 ...... MA-10
CHIME - Wiring diagram ..................................... DI-41
Circuit breaker ................................................... PG-17
Clock ................................................................... DI-61
CLOCK - Wiring diagram .................................... DI-61
Closed loop control ............................. EC-26, EC-501
Closed loop control (Bank 1) ........................... EC-501
Closed loop control (Bank 2) ........................... EC-501
Clutch drum (Transfer) ....................... TF-154, TF-167
Clutch pressure switch (Transfer) ...... TF-154, TF-167
Coil spring (front) ............................................. FSU-10
Collision diagnosis .......................................... SRS-53
Combination lamp, front, removal and installation . LT-
25
Combination lamp, rear, removal and installation .. LT-
101
Combination meter ................................................ DI-5
Combination switch ............................................ LT-79
COMBSW - Wiring diagram ............................... LT-79
COMM - Wiring diagram ................................... AV-94
COMPAS - Wiring diagram ................................. DI-24
Compass ............................................................. DI-23
Component Location (auto A/C) ...................... ATC-38
Compressor clutch removal and installation . ATC-180
Compressor mounting ................................... ATC-179
Compressor precaution ................................... ATC-11
Compressor special service tool ..................... ATC-14
Condenser ..................................................... ATC-184
Connecting rod .................................................. EM-96
Connecting rod bearing clearance .................... EM-96
Connecting rod bushing clearance .................... EM-96
Console box - See Instrument panel ................... IP-10
CONSULT for VDC ......................................... BRC-27
CONSULT general information ........................... GI-37
CONSULT-II for engine ................................... EC-118
Control units (terminal arrangement) ................. PG-71
Control valve (A/T) ............................................. AT-36
Control valve (Transfer) ...................... TF-154, TF-167
Converter housing installation ............ AT-240, AT-244
COOL/F - Wiring diagram ................................ EC-507
Coolant mixture ratio ......................................... MA-12
Coolant replacement ............................ CO-10, MA-13
Cooling circuit (engine) ........................................ CO-8
Cooling fan ........................................................ CO-17
Cooling fan control ........................................... EC-504
Cooling fan motor ............................................ EC-513
Cooling unit (A/C evaporator) ....... ATC-157, ATC-186
Corrosion protection ......................................... BL-157
Crankcase ventilation system - See Positive crankcase
ventilation .......................................................... EC-46
Crankshaft ......................................................... EM-79
Crankshaft position sensor (POS) ................... EC-362
Crash zone sensor .......................................... SRS-48
CUR/SE - Wiring diagram ... EC-522, EC-529, EC-536,
EC-543
Cylinder block .................................................... EM-78
Cylinder block boring ......................................... EM-99
D
D/LOCK - Wiring diagram ................................... BL-19
Data link connector for Consult ......... EC-120, EC-132
Daytime light system .......................................... LT-27
Daytime running light - See Daytime light system .. LT-
27
DEF - Wiring diagram ....................................... GW-74
Diagnosis sensor unit ...................................... SRS-51
Diagnostic trouble code (DTC) for OBD system . EC-9,
EC-54
Diagnostic trouble code (DTC) inspection priority chart
EC-91
Differential carrier assembly ............................ RFD-15
Differential gear oil replacement ........................ MA-26
Dimensions ......................................................... GI-51
Direct clutch solenoid valve ................ AT-143, AT-145
Display and amp.assembly .............................. ATC-59
Display Control Unit ........................................... AV-83
Display Unit ....................................................... AV-83
Dome light - See Interior lamp .......................... LT-110
Door glass .......................................... GW-62, GW-65
Door lock .......................................................... BL-121
Door mirror lamp ............................................... LT-110
Door trim .............................................................. EI-32
Door, front ........................................... BL-117, GW-62
Door, rear ........................................... BL-117, GW-65
Drive belt ........................................................... EM-13
Drive chain (Transfer) ......................... TF-149, TF-176
Drive pinion diff. inspection .............................. RFD-18
Drive shaft (rear) ................................................ RAX-7
Driver air bag ................................................... SRS-39
DTC work support ............................................ EC-128
DTRL - Wiring diagram ....................................... LT-31

IDX-4
ALPHABETICAL INDEX
Duct and grilles .............................................. ATC-170
DVD - Wiring Diagram ....................................... AV-75
DVD Entertainment System ............................... AV-72
DVD Player ........................................................ AV-73
E
ECM input/output signal ..................... EC-109
, EC-133
ECM power supply ............................. EC-150, EC-475
ECM relay ........................................................ EC-150
ECM/PW - Wiring diagram ............................... EC-476
ECTS - Wiring diagram .................................... EC-220
Electric sunroof .................................................. RF-10
Electric throttle control actuator ......... EC-595, EC-606
Electrical load signal circuit .............................. EC-657
Electrical units location ...................................... PG-65
Electronic ignition (EI) system ........................... EC-27
Engine control circuit diagram ......................... EC-107
Engine control component parts location ........... EC-98
Engine control module (ECM) .......................... EC-479
Engine control system diagram ......................... EC-24
Engine coolant .................................................. CO-10
Engine coolant temperature sensor (ECTS) ... EC-218,
EC-231
Engine fail-safe system ...................................... EC-93
Engine oil ............................................................. LU-8
Engine oil filter replacement ............................. MA-17
Engine oil precautions .......................................... GI-7
Engine oil replacement ..................................... MA-17
Engine removal ................................................. EM-74
Engine room cover ............................................ EM-12
Engine serial number .......................................... GI-50
ETC1 - Wiring diagram .................................... EC-596
ETC2 - Wiring diagram .................................... EC-591
ETC3 - Wiring diagram .................................... EC-602
EVAP canister .................................................... EC-36
EVAP canister purge volume control solenoid valve ....
EC-395
, EC-403
EVAP canister vent control valve ....... EC-410, EC-417
EVAP control system (small leak) diagnosis .. EC-387,
EC-441
, EC-449
EVAP control system pressure sensor .... EC-424, EC-
427, EC-433
EVAP control system purge flow monitoring diagnosis
EC-382
EVAP vapor lines inspection ............................. MA-20
Evaporative emission (EVAP) system ............... EC-33
Evaporator ..................................................... ATC-186
Exhaust manifold .............................................. EM-21
Exhaust system ................................................... EX-3
Exhaust system inspection .................................. EX-3
Expansion valve ............................................. ATC-188
F
F/FOG - Wiring diagram ..................................... LT-56
F/PUMP - Wiring diagram ................................ EC-666
Final drive pre-inspection ................................. FFD-15
Final drive removal and installation .. FFD-12, RFD-13
Flow charts .......................................................... GI-27
Fluid temperature sensor (A/T) ........................ AT-123
Fluids ................................................................ MA-11
Fluorescent leak detector .............................. ATC-189
Fog lamp, front ................................................... LT-54
Fog lamp, front, removal and installation ........... LT-62
Foot lamp ......................................................... LT-111
Freeze frame data ............................... EC-55, EC-121
Front brake solenoid valve ................. AT-139, AT-141
Front bumper ...................................................... EI-13
Front case (Transfer) .......................... TF-149, TF-176
Front combination lamp removal and installation LT-25
Front door ............................. BL-117, BL-121, GW-62
Front Door Trim ................................................... EI-32
Front drive shaft (Transfer) ................. TF-149, TF-176
Front fog lamp .................................................... LT-54
Front fog lamp removal and installation ............. LT-62
Front passenger air bag .................................. SRS-43
Front seat ........................................................... SE-89
Front seat belt ...................................................... SB-3
Front seat belt pre-tensioner ............... SRS-3, SRS-50
Front washer ...................................................... WW-4
Front wiper ......................................................... WW-4
FTS - Wiring diagram ....................................... AT-124
FTTS - Wiring diagram ...................... EC-334, EC-339
Fuel cut control (at no load high engine speed) EC-28
Fuel filter replacement ......................................... FL-5
Fuel gauge ............................................................ DI-5
Fuel injection system (Bank 1) .......... EC-311, EC-322
Fuel injection system (Bank 2) .......... EC-311, EC-322
Fuel injector .................................................... EC-659
Fuel injector and fuel tube ................................. EM-31
Fuel level sensor ................. EC-458, EC-460, EC-462
Fuel line inspection .............................................. FL-4
Fuel precautions ................................................... GI-5
Fuel pressure check .......................................... EC-82
Fuel pressure release ....................................... EC-82
Fuel pump ....................................................... EC-665
Fuel pump and gauge .......................................... FL-5
Fuel system .......................................................... FL-4
Fuel tank ............................................................ FL-10
Fuel tank temperature sensor ........... EC-332, EC-338
Fuel tank vacuum relief valve ........................... EC-36
FUELB1 - Wiring diagram ................. EC-313, EC-324
FUELB2 - Wiring diagram ................. EC-315, EC-326
Fuse ...................................................... PG-17, PG-77
Fuse and fusible link box .................................. PG-77
Fuse block ......................................................... PG-76
Fusible link ............................................ PG-17, PG-77
G
Garage jack and safety stand ............................. GI-42
Gauges ................................................................. DI-5
Generator .......................................................... SC-17
Generic scan tool (GST) ................................. EC-131
Glass ...................................... GW-11, GW-62, GW-65
Glove box lamp ................................................ LT-131
GPS antenna ..................................................... AV-82

LAN-44
< SERVICE INFORMATION >[CAN]
TROUBLE DIAGNOSIS
CAN System Specification Chart
INFOID:0000000003533627
Determine CAN system type from the following specification chart. Then choose the correct diagnosis sheet.
NOTE:
Refer to LAN-14, "
Trouble Diagnosis Procedure" for how to use CAN system specification chart.
X: Applicable
VEHICLE EQUIPMENT IDENTIFICATION INFORMATION
NOTE:
Check CAN system type from the vehicle shape and equipment.
CAN Communication Signal ChartINFOID:0000000003533628
Refer to LAN-13, "How to Use CAN Communication Signal Chart" for how to use CAN communication signal
chart.
TYPE 1/TYPE 2
NOTE:
Refer to LAN-37, "
Abbreviation List" for the abbreviations of the connecting units.
T: Transmit R: Receive
Body typeWagon
Axle 2WD AWD
EngineVK56DE
Transmission A/T
Brake controlVDC
ICC system X X
CAN system type 1234
Diagnosis sheetLAN-57
LAN-58LAN-59LAN-60
CAN communication signal chartLAN-44, "CAN Communication Sig-
nal Chart"
LAN-44, "CAN Communication Sig-
nal Chart"
BKIA0219E
Signal name/Connecting unitECM
TCM
LASER
ICC
ADP
BCM
DISP
HVAC
M&A
STRG
ABS
IPDM-E
A/C compressor request signal TR
Accelerator pedal position signal T R R R
ASCD CRUISE lamp signal T R
ASCD OD cancel request signal T R
ASCD operation signal T R
ASCD SET lamp signal T R
Battery voltage signal T R
Closed throttle position signal T R R
Cooling fan speed request signal TR
Engine coolant temperature signal T R R

TROUBLE DIAGNOSIS
LAN-47
< SERVICE INFORMATION >[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
N
O
P
Cooling fan speed request signal TR
Engine coolant temperature signal T R R
Engine speed signal T R R R R R R R
Engine status signal T R
Fuel consumption monitor signalTR
RT
ICC steering switch signal T R
Malfunction indicator lamp signal T R
Wide open throttle position signal T R
A/T CHECK indicator lamp signal T R
A/T fluid temperature sensor signal T R
A/T position indicator lamp signal T R R R
A/T self-diagnosis signal R T
Current gear position signal T R R
Output shaft revolution signal R T R R
P range signal T R R R R
Turbine revolution signal R T R
ICC sensor signal T R
Buzzer output signalTR
TR
ICC OD cancel request signal R R T
ICC operation signal R R T
ICC system display signal T R
System setting signalTR
RT
A/C switch signal R T R
Blower fan motor switch signal R T
Day time running light request signal T R R
Door switch signal R T R R R
Front fog light request signal T R
Front wiper request signal R T R
High beam request signal T R R
Horn chirp signal T R
Ignition switch signal R T R
Key fob door unlock signal R T
Key fob ID signal R T
Key switch signal R T
Low beam request signal T R
Position light request signal T R R
Rear window defogger switch signal T R R
Sleep wake up signal R T R R
Theft warning horn request signal T R
Tire pressure data signal T RSignal name/Connecting unit
ECM
TCM
LASER
ICC
ADP
BCM
DISP
HVAC
M&A
STRG
4WD
ABS
IPDM-E

HEADLAMP (FOR USA)
LT-21
< SERVICE INFORMATION >
C
D
E
F
G
H
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MA
B
LT
N
O
P
- Place vehicle and screen on level surface.
- Ensure there is no load in vehicle other than the driver (or equivalent weight placed in driver's position).
Coolant and engine oil filled to correct level, and fuel tank full.
- Confirm spare tire, jack and tools are properly stowed.
- Aim each headlamp individually and ensure other headlamp beam pattern is blocked from screen.
- Use adjusting screw to perform aiming adjustment
NOTE:
Basic illuminating area for adjustment should be within the range shown on the aiming chart. Adjust head-
lamps accordingly.
LOW BEAM AND HIGH BEAM
1. Turn headlamp low beam on.
2. Use adjusting screw to perform aiming adjustment.
Bulb ReplacementINFOID:0000000003533350
CAUTION:
• Disconnect battery negative terminal before touching xenon bulb or headlamp wiring harness
assembly.
• Turn headlamp switch OFF before disconnecting headlamp harness connector.
• Do not touch bulb by hand right after being turned off. Burning may result.
• Do not touch the glass of bulb directly by hand. Keep grease and other oily substances away from it.
• Do not turn xenon bulb ON when xenon bulb is removed from front combination lamp assembly.
• After installing the bulb, be sure to install the bulb socket securely to ensure watertightness.
A. Right B. Left C. Center of headlamp bulb (H-V point)
D. Cutoff line E. Screen F. Aim evaluation segment
G. Step H. Horizontal center line of headlamp J. 103 mm (4.06 in.)
K. 37 mm (1.46 in.) L. 7.62 m (25 ft.) M. 399 mm (15.71 in.)
N. 133 mm (5.24 in.) P. 53.2 mm (2.09 in.) Q. 466 mm (18.35 in.)
R. 200 mm (7.87 in.) S. RH headlamp aiming screen T. LH headlamp aiming screen
LKIA0809E

FRONT FOG LAMP
LT-55
< SERVICE INFORMATION >
C
D
E
F
G
H
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MA
B
LT
N
O
P
Aiming AdjustmentINFOID:0000000003533400
The fog lamp is a semi-sealed beam type which uses a replaceable halogen bulb. Before performing aiming
adjustment, make sure of the following.
• Keep all tires inflated to correct pressure.
• Place vehicle on level ground.
• See that vehicle is unloaded (except for full levels of coolant,
engine oil and fuel, and spare tire, jack, and tools). Have the driver
or equivalent weight placed in driver seat.
Adjust aiming in the vertical direction by turning the adjustment
screw.
NOTE:
Access adjustment screw from underneath front bumper. Turn screw
clockwise to raise pattern and counterclockwise to lower pattern.
1. Set the distance between the screen and the center of the fog
lamp lens as shown.
2. Turn front fog lamps ON.
3. Adjust front fog lamps using adjusting screw so that the top edge
of the high intensity zone is 200 mm (7.9 in) below the height of
the fog lamp centers as shown.
• When performing adjustment, if necessary, cover the headlamps
and opposite fog lamp.
Bulb ReplacementINFOID:0000000003533401
FRONT FOG LAMP
Removal
1. Remove the front turn/fog lamp assembly. Refer to LT- 4 9.
SEL350X
MEL327G
MEL328GA

PRECAUTIONS
LU-3
< SERVICE INFORMATION >
C
D
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LU
N
P O
3. Attach the liquid gasket tube to the Tool.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-45, "
Recommended Chemical Product and Sealant".
4. Apply the liquid gasket without breaks to the specified location
with the specified dimensions.
• If there is a groove for the liquid gasket application, apply the
liquid gasket to the groove.
• As for the bolt holes, normally apply the liquid gasket inside
the holes. If specified in the procedure, it should also be
applied outside the holes.
• Within five minutes of liquid gasket application, install the mat-
ing component.
• If the liquid gasket protrudes, wipe it off immediately.
• Do not retighten after the installation.
• Wait 30 minutes or more after installation before refilling the
engine with engine oil and engine coolant.
CAUTION:
If there are specific instructions in this manual, observe them. Tool number : WS39930000 ( — )
WBIA0567E
SEM159F

LU-8
< SERVICE INFORMATION >
ENGINE OIL
ENGINE OIL
InspectionINFOID:0000000003531555
OIL LEVEL
• Before starting the engine make sure the vehicle is parked on a flat
and level surface, then check the oil level. If the engine is already
running, turn it off and allow 10 minutes before checking.
• Check that the oil level is within the low (L) and high (H) range as
indicated on the dipstick.
• If the engine oil level is out of range, add oil as necessary. Refer to
GI-45, "
Recommended Chemical Product and Sealant".
OIL APPEARANCE
• Check the engine oil for a white milky appearance or excessive contamination.
• If the engine oil is milky, it is highly probable that it is contaminated with engine coolant. Repair the broken
parts.
OIL LEAKAGE
Check for oil leakage around the following areas:
•Oil pan
• Oil pan drain plug
• Oil pressure switch
• Oil filter
• Oil cooler
• Intake valve timing control cover
• Intake valve timing control solenoid valve
• Front cover
• Mating surface between cylinder block and cylinder head
• Mating surface between cylinder head and rocker cover
• Crankshaft oil seal (front and rear)
OIL PRESSURE CHECK
CAUTION:
• Be careful not to burn yourself, as engine oil may be hot.
• Put the selector lever in the Park “P” position.
1. Check the engine oil level. Refer to LU-8, "
Inspection".
2. Remove engine front undercover using power tool.
3. Disconnect the oil pressure switch harness connector.
4. Remove the oil pressure switch (A).
SMA954C
WBIA0791E