2010 INFINITI QX56 coolant reservoir

EC-26
< FUNCTION DIAGNOSIS >[VK56DE]
ENGINE CONTROL SYSTEM
1. Knock sensor (bank 1) (view with en-
gine removed) 2. Knock sensor (bank 2) (view with en-
gine removed) 3. Battery current sensor
4. Power steering pressure sensor 5. Power steering fluid reservoir 6. Intake manifold
7. Engine coolant temperature sensor 8. Ignition coils (with power transistor) 9. Ignition coil (with power transistor)
10. Injector harness connectors (bank 2) 11. Injector harness connectors (bank 1) : Vehicle front
BBIA0384E
Revision: April 20092010 QX56

EC-302
< COMPONENT DIAGNOSIS >[VK56DE]
P1217 ENGINE OVER TEMPERATURE
P1217 ENGINE OVER TEMPERATURE
On Board Diagn
osis LogicINFOID:0000000005149350
NOTE:
•If DTC P1217 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX.
• If DTC P1217 is displayed with DTC P0607, first perform the trouble diagno sis for DTC P0607. Refer
to EC-288
.
If the cooling fan or another component in the cooling system malfunctions, engine coolant temperature will
rise.
When the engine coolant temperature reaches an abnorma lly high temperature condition, a malfunction is
indicated.
This self-diagnosis has the one trip detection logic.
CAUTION:
When a malfunction is indicated, be sure to replace the coolant. Refer to CO-11, "
Changing Engine
Coolant". Also, replace the engine oil. Refer to LU-9, "Changing Engine Oil".
1. Fill radiator with coolant up to specified level with a filling speed of 2 liters per minute. Be sure to use coolant with the proper mixture ratio. Refer to CO-10
.
2. After refilling coolant, run engine to en sure that no water-flow noise is emitted.
Overall Function CheckINFOID:0000000005149351
Use this procedure to check the overall function of the cooling fan. During this check, a DTC might not be con-
firmed.
WARNING:
Never remove the radiator cap and/or reservoir tank cap when the engine is hot. Serious burns could
be caused by high pressure fluid escaping fr om the radiator and/or reservoir tank.
Wrap a thick cloth around cap. Carefully remove the cap by turning it a quarter turn to allow built-up
pressure to escape. Then turn the cap all the way off.
WITH CONSULT-III
1. Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
If the coolant level in the reservoir tank and/or radiator is below
the proper range, skip the following steps and go to EC-392,
"Diagnosis Procedure".
2. Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go to EC-392,
"Diagnosis Procedure".
3. Turn ignition switch ON.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1217
1217 Engine over tempera-
ture (Overheat) • Cooling fan does not operate properly (Over-
heat).
• Cooling fan system does not operate proper- ly (Overheat).
• Engine coolant was not added to the system using the proper filling method.
• Engine coolant is not within the specified
range. • Harness or connectors
(The cooling fan circuit is open or short-
ed.)
• Cooling fan
• Cooling fan (crankshaft driven)
• IPDM E/R (Cooling fan relay)
•Radiator hose
•Radiator
•Radiator cap
• Reservoir tank
• Reservoir tank cap
• Water pump
•Thermostat
For more informat ion, refer to EC-304,
"Main 13 Causes of Overheating".
SEF621W
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P1217 ENGINE OVER TEMPERATUREEC-303
< COMPONENT DIAGNOSIS > [VK56DE]
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4. Perform “COOLING FAN” in “ACTIVE TEST” mode with CONSULT-III.
5. If the results are NG, go to
EC-392, "
Diagnosis Procedure".
WITH GST
1. Check the coolant level in the reservoir tank and radiator.
Allow engine to cool befo re checking coolant level.
If the coolant level in the reservoir tank and/or radiator is below
the proper range, skip the following steps and go to EC-392,
"Diagnosis Procedure".
2. Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go to EC-392,
"Diagnosis Procedure".
3. Disconnect engine coolant temper ature sensor harness connec-
tor.
4. Connect 150 Ω resistor to engine coolant temperature sensor
harness connector.
5. Start engine and make sure that cooling fan operates. CAUTION:
Be careful not to overheat engine.
6. If NG, go to EC-392, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000005149352
1.CHECK COOLING FAN (CRANKSHAFT DRIVEN) OPERATION
1. Start engine and let it idle.
2. Make sure that cooling fan (crankshaft driven) operates normally.
OK or NG
OK (With CONSULT-III)>>GO TO 2.
OK (Without CONSULT-III)>>GO TO 3.
NG >> Check cooling fan (crankshaft driven). Refer to CO-18, "
Removal and Installation (Crankshaft
Driven Type)".
2.CHECK COOLING FAN MOTOR OPERATION
With CONSULT-III
1. Start engine and let it idle.
2. Select “COOLING FAN” in “ACTIVE TEST” mode with CONSULT-III.
3. Make sure that cooling fan operates.
OK or NG
OK >> GO TO 4.
NG >> Check cooling fan control circuit. (Go to “PROCEDURE A”.)
3.CHECK COOLING FAN MOTOR OPERATION
Without CONSULT-III
1. Disconnect engine coolant temperature sensor harness connector.
2. Connect 150 Ω resistor to engine coolant temperature sensor harness connector.
3. Start engine and let it idle.
SEF621W
SEF882V
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EC-304
< COMPONENT DIAGNOSIS >[VK56DE]
P1217 ENGINE OVER TEMPERATURE
4. Make sure that cooling fan operates.
OK or NG
OK >> GO TO 4.
NG >> Check cooling fan control circuit. (Go to “PROCEDURE
A”.)
4.CHECK COOLING SYSTEM FOR LEAK
Refer to CO-10, "
Inspection".
OK or NG
OK >> GO TO 5.
NG >> Check the following for leak. •Hose
• Radiator
• Radiator cap
• Water pump
• Reservoir tank
5.CHECK COMPONENT PARTS
Check the following.
• RESERVOIR TANK CAP (Refer to CO-10, "
Inspection".)
• Thermostat. (Refer to CO-22, "
Removal and Installation".)
• Engine coolant temperature sensor. (Refer to EC-123, "
Component Inspection".)
OK or NG
OK >> GO TO 6.
NG >> Replace malfunctioning component.
6.CHECK MAIN 13 CAUSES
If the cause cannot be isolated, go to EC-304, "
Main 13 Causes of Overheating".
>> INSPECTION END
Main 13 Causes of OverheatingINFOID:0000000005149353
SEF882V
Engine Step Inspection item EquipmentStandardReference page
OFF 1 • Blocked radiator • Blocked condenser
• Blocked radiator grille
• Blocked bumper • Visual
No blocking —
2 • Coolant mixture • Coolant tester 50 - 50% coolant mixtureCO-10
3 • Coolant level • VisualCoolant up to MAX level in
reservoir tank and radiator
filler neck CO-11, "Changing Engine
Coolant"
4 • Reservoir tank cap • Pre
ssure tester 95 - 125 kPa
(0.97 - 1.28 kg/cm2, 14 -
18 psi) (Limit) CO-10, "
Inspection"
ON*25 • Coolant leaks
• VisualNo leaks CO-10, "Inspection"
ON*26 • Thermostat • Touch the upper and
lower radiator hoses Both hoses should be hot
CO-22, "Removal and In-
stallation"
ON*17 • Cooling fan • CONSULT-IIIOperating See trouble diagnosis for
DTC P1217 ( EC-36
).
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P1217 ENGINE OVER TEMPERATUREEC-305
< COMPONENT DIAGNOSIS > [VK56DE]
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*1: Turn the ignition switch ON.
*2: Engine running at 3,000 rpm for 10 minutes.
*3: Drive at 90 km/h (55 MPH) for 30 minutes and then let idle for 10 minutes.
*4: After 60 minutes of cool down time.
For more information, refer to
CO-8, "
Troubleshooting Chart".
OFF 8 • Combustion gas leak • Color checker chemical
tester 4 Gas analyzerNegative
—
ON*
39 • Coolant temperature gauge • Visual Gauge less than 3/4 when
driving —
• Coolant overflow to res- ervoir tank • Visual
No overflow during driving
and idling CO-11, "
Changing Engine
Coolant"
OFF*410 • Coolant return from res-
ervoir tank to radiator • Visual Should be initial level in
reservoir tank CO-11, "Changing Engine
Coolant"
OFF 12 • Cylinder head
• Straight gauge feeler
gauge 0.1 mm (0.004 in) Maxi-
mum distortion (warping) EM-72, "Inspection After
Disassembly"
13 • Cylinder block and pis-
tons • Visual No scuffing on cylinder
walls or piston EM-90, "Inspection After
Disassembly"
Engine Step Inspection item
EquipmentStandardReference page
Revision: April 20092010 QX56

ENGINE ASSEMBLYEM-79
< REMOVAL AND INSTALLATION >
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1. Release the fuel pressure. Refer to
EC-489, "Fuel Pressure Check".
2. Drain the engine coolant. Refer to CO-11, "
Changing Engine Coolant".
3. Drain the engine oil. Refer to LU-9, "
Changing Engine Oil".
4. Partially drain the A/T fluid. Refer to TM-150, "
Changing the A/T Fluid (ATF)".
5. Disconnect the battery negative and positive terminal. Refer to PG-74, "
Removal and Installation".
6. Remove the engine hood. Refer to DLK-234, "
Removal and Installation of Hood Assembly".
7. Remove the cowl extension. Refer to EXT-18, "
Removal and Installation".
8. Remove the engine room cover using power tools.
9. Remove the air duct and air cleaner case assembly. Refer to EM-25, "
Removal and Installation".
10. Disconnect the vacuum hose between the vehicle and engine and set it aside.
11. Remove the radiator assembly and hoses. Refer to CO-15, "
Removal and Installation".
12. Remove the drive belt. Refer to EM-13, "
Removal and Installation".
13. Remove the fan blade. Refer to CO-18, "
Removal and Installation (Crankshaft Driven Type)".
14. Disconnect the engine room harness from the fuse box and set it aside.
15. Disconnect the ECM.
16. Disconnect the engine room harness from the engine side and set it aside.
17. Disconnect the engine harness grounds.
18. Disconnect the power steering reservoir t ank from the engine and move it aside.
19. Disconnect the power steering oil pump from the engine. Move it aside and secure it using suitable wire or rope. Refer to ST-26, "
Removal and Installation"
20. Remove the A/C compressor bolts and set the compressor aside. Refer to HA-31, "Removal and Installa-
tion for Compressor" (ATC).
21. Disconnect the brake booster vacuum line.
22. Disconnect the EVAP line.
23. Disconnect the fuel hose at the engine side connection. Refer to EM-40, "
Removal and Installation".
24. Disconnect the heater hoses at the cowl, and in stall plugs to avoid leakage of engine coolant.
25. Remove the A/T oil level indicator and indicator tube upper bolts.
26. Remove the front final drive assembly (4WD only). Refer to DLN-215, "
Removal and Installation".
27. Remove the exhaust manifolds. Refer to EM-30, "
Removal and Installation".
28. Install the engine slingers into the left bank cylinder head and right bank cylinder head.
29. Disconnect and remove the crankshaft position sensor (POS). Refer to EM-82, "
Exploded View".
30. Remove the A/T. Refer to TM-186, "
Removal and Installation
(2WD)" or TM-188, "Removal and Installation (4WD)".
31. Lift using a hoist and secure the engine in position.
32. Remove the engine assembly from the vehicle, avoid interfer- ence with the vehicle body.
CAUTION:
WBIA0795E
Engine slinger torque: 45.0 N·m (4.6 kg-m, 33 ft-lb)
WBIA0715E
Revision: April 20092010 QX56

GENERAL MAINTENANCEMA-7
< ON-VEHICLE MAINTENANCE >
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UNDER THE HOOD AND VEHICLE
The maintenance items listed here should be checked periodically (e.g. each time you check the engine oil or refuel).
Seat beltsCheck that all parts of the seat belt system (e.g. buckles, anchors, adjusters and
retractors) operate properly and smoothly and are installed securely. Check the
belt webbing for cuts, fraying, wear or damage. MA-39, "SEAT BELT,
BUCKLES, RETRAC-
TORS, ANCHORS AND
ADJUSTERS : Checking
Seat Belts, Buckles, Re-
tractors, Anchors and
Adjusters"
Accelerator pedal
Check the pedal for smooth operation and make sure the pedal does not catch
or require uneven effort. Keep the floor mats away from the pedal. ACC-6, "Accelerator
Control"
Brakes
Check that the brake does not pull the vehicle to one side when applied. —
Brake pedal and
booster Check the pedal for smooth operation and make sure it has the proper distance
under it when depressed fully. Check the brake booster function. Be sure to keep
the floor mats away from the pedal. BR-15, "
Inspection and
Adjustment", BR-10, "In-
spection"
Parking brake
Check that the lever or the pedal has the proper travel and make sure that the
vehicle is held securely on a fairly steep hill when only the parking brake is ap-
plied. PB-5, "On-Vehicle Ser-
vice"
Automatic transmis-
sion “Park” mecha-
nismCheck that the lock release button on the selector lever operates properly and
smoothly. On a fairly steep hill check that the vehicle is held securely with the se-
lector lever in the P position without applying the brakes.
—
Item
Reference page
Item Reference page
Windshield washer
fluid Check that there is adequate fluid in the tank.
—
Engine coolant level Check the coolant level when the engine is cold. CO-10, "
Inspection"
Radiator and hosesCheck the front of the radiator and clean off any dirt, insects, leaves, etc., that
may have accumulated. Make sure the hoses have no cracks, deformation, de-
terioration or loose connections. —
Brake fluid level Make sure that the brake fluid level is between the “MAX” and “MIN” lines on the
reservoir. MA-34, "
BRAKE FLUID
LEVEL AND LEAKS : On
Board Inspection"
Battery
Check the fluid level in each cell. It should be between the “MAX” and “MIN” lines.
Vehicles operated in high temperatures or under severe conditions require fre-
quent checks of the battery fluid level. —
Engine drive belt Make sure that no belt is frayed, worn, cracked or oily. MA-15, "
DRIVE BELTS :
Checking Drive Belts"
Engine oil levelCheck the level on the oil level gauge after parking the vehicle on a level spot and
turning off the engine. LU-8, "Inspection"
Power steering fluid
level and lines
Check the level on the dipstick with the engine off. Check the lines for improper
attachment, leaks, cracks, etc. MA-37, "POWER
STEERING FLUID AND
LINES : Checking Fluid
Level"
Automatic transmis-
sion fluid level
Check the level on the fluid level gauge after putting the selector lever in “P” with
the engine idling. MA-27, "A/T FLUID :
Checking the A/T Fluid
(ATF)"
Exhaust system
Make sure there are no loose supports, cracks or holes. If the sound of the ex-
haust seems unusual or there is a smell of exhaust fumes, immediately locate
the trouble and correct it. MA-26, "EXHAUST SYS-
TEM : Checking Exhaust
System"
Revision: April 20092010 QX56

RECOMMENDED FLUIDS AND LUBRICANTSMA-13
< ON-VEHICLE MAINTENANCE >
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RECOMMENDED FLUIDS AND LUBRICANTS
Fluids and LubricantsINFOID:0000000005145938
*1: For further details, refer to
MA-14, "Engine Oil Recommendation".
*2: If Genuine NISSAN Matic S ATF is not ava ilable, Genuine Matic J ATF may also be used. Using automatic transmission fluid
other than Genuine NISSAN Matic S ATF or Matic J ATF will cause deterioration in drive ability and automatic transmission
durability, and may damage the automatic transmission, which is not covered by the INFINITI new vehicle limited warranty.
*3: DEXRON
TM VI type ATF may also be used.
*4: Available in mainland U.S.A. through an INFINITI dealer.
*5: For further details, see “Air conditioner specification label”.
*6: For hot climates, viscosity SAE 90 is suitable for ambient temperatures above 0° C (32° F).
*7: For improved vehicle performance, INFINITI recommends the use of unleaded premium gasoline with an octane rating of at leas t 91
AKI (RON 96). For furt her details, refer to GI-27, "
Precaution for Fuel (Unleaded Premium Gasoline Required)",
*8: See an INFINITI dealer for service for synthetic oil.
*9: Using fluid other than Genuin e NISSAN Matic D ATF may cause deterioration in drive ability and transfer durability, and may damage
the transfer, which is not covered by the INFINITI new vehicle limited warranty. Description
Capacity (Approximate)
Recommended Fluids/Lubricants
Metric US measure Imp measure
Fuel 105.8 28 gal 23 1/4 gal Unleaded gasoline with octane rating of
at least 87 AKI (RON 91) *7
Engine oil
Drain and refill With oil filter
change
6.5
6 7/8 qt 5 3/4 qt
• Engine oil with API Certification Mark*1
• Viscosity SAE 5W-30
Without oil filter
change
6.2
6 1/2 qt 5 1/2 qt
Dry engine (engine overhaul) 7.6 8 qt
6 3/4 qt
Cooling system With reservoir
at MAX level
14.4
15 1/4 qt 12 5/8 qt Genuine NISSAN Long
Life Anti-freeze
coolant or equivalent
Automatic transmission fluid (ATF) 10.6 11 1/4 qt 9 3/8 qt Genuine NISSAN Matic S ATF *2
Rear differential gear oil 1.75 3 3/4 pt 3 1/8 pt API GL-5 Synthetic 75W-90 Gear Oil
(Part No. 999MP-DF200P) or equivalent
*8
Transfer fluid 3.0 3 1/8 qt 2 5/8 qt Genuine NISSAN Matic D ATF recom-
mended *9
Front differential gear oil 1.6 3 3/8 pt 2 7/8 pt Genuine NISSAN Differ
ential Oil Hypoid
Super GL-5 80W-90 or API GL-5 Viscosi-
ty SAE 80W-90**6
Power steering fluid (PSF) 1.0 1 1/8 qt 7/8 qt Genuine NISSAN PSF or equivalent *3
Brake fluid ———Genuine NISSAN S
uper Heavy Duty
Brake Fluid or equivalent,
DOT 3 (US FMVSS No. 116) *4
Brake grease ———PBC (poly butyl cuprysil) grease or equiv-
alent
Multi-purpose grease ——— NLGI No. 2 (lithium soap base)
Windshield washer fluid 4.5 4 3/4 qt
4 qtGenuine NISSAN Wind
shield Washer
Concentrate Cleaner & Anti-freeze or
equivalent
Air conditioning system refrigerant 1.08 ± 0.05 kg 2.38 ± 0.11 lb 2.38 ± 0.11 lb HFC-134a (R-134a) *5
Air conditioning system oil 290 m9.8 fl oz 10.2 fl oz NISSAN A/C System Oil Type S or equiv-
alent *5
Revision: April 20092010 QX56