2011 INFINITI QX56 transmission

LAN
TROUBLE DIAGNOSISLAN-17
< SYSTEM DESCRIPTION > [CAN FUNDAMENTAL]
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How to Use CAN Communication Signal ChartINFOID:0000000006220522
The CAN communication signal chart lists the signals
needed for trouble diagnosis. It is useful for detecting
the root cause by finding a signal related to the sy mptom, and by checking transmission and reception unit.
SKIB8715E
Revision: 2010 May2011 QX56

LAN
SYSTEMLAN-27
< SYSTEM DESCRIPTION > [CAN]
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SYSTEM
CAN COMMUNICATION SYSTEM
CAN COMMUNICATION SYSTEM : CAN
System Specification ChartINFOID:0000000006220532
Determine CAN system type from the following specification chart.
NOTE:
Refer to LAN-18, "
Trouble Diagnosis Procedure" for how to use CAN system specification chart.
×: Applicable
VEHICLE EQUIPMENT IDENTIFICATION INFORMATION
NOTE:
Body type Wagon
Axle 2WD 4WD
Engine VK56VD
Transmission A/T
Brake control VDC
ICC system ××
CAN system type 1 2 3 4 CAN communication unit
ECM ××××
Transfer control unit ××
ABS actuator and electric unit (control unit) ××××
TCM ××××
Air bag diagnosis sensor unit ××××
AFS control unit ××
AV control unit ××××
BCM ××××
CAN gateway ××
Data link connector ××××
A/C auto amp. ××××
Combination meter ××××
Steering angle sensor ××××
Low tire pressure warning control unit ××××
IPDM E/R ××××
Driver seat control unit ××××
Pre-crash seat belt control unit (driver side) ××
Air levelizer control module ××××
ADAS control unit ××
Automatic back door control module ××××
ITS communication unit
ADAS control unit ××
Side radar RH ××
Side radar LH ××
Lane camera unit ××
Accelerator pedal actuator ××
ICC sensor ××
Revision: 2010 May2011 QX56

LAN
U1000 CAN COMM CIRCUITLAN-113
< DTC/CIRCUIT DIAGNOSIS > [CAN GATEWAY]
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DTC/CIRCUIT DIAGNOSIS
U1000 CAN COMM CIRCUIT
DescriptionINFOID:0000000006220585
CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communicati
on speed and excellent error detection ability. Modern
vehicle is equipped with many electroni c control unit, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with two communication lines (CAN-H and CAN-L) allowing a high rate of information transmission with less
wiring. Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Signal Chart. Refer to LAN-28, "
CAN COMMUNICATION SYSTEM : CAN Communica-
tion Signal Chart".
DTC LogicINFOID:0000000006220586
DTC DETECTION LOGIC
Diagnosis ProcedureINFOID:0000000006220587
1.PERFORM SELF DIAGNOSTIC
1. Turn the ignition switch ON and wait for 2 seconds or more.
2. Check “Self Diagnostic Result”.
Is
“U1000: CAN COMM CIRCUIT” displayed?
YES >> Refer to LAN-18, "Trouble Diagnosis Flow Chart".
NO >> Refer to GI-40, "
Intermittent Incident".
DTCCONSULT-III display de-
scription DTC Detection
Condition Possible cause
U1000 CAN COMM CIRCUIT When CAN gateway cannot communicate
CAN communication signal continuously for 2
seconds or more.
CAN communication system
Revision: 2010 May2011 QX56

LAN-114
< DTC/CIRCUIT DIAGNOSIS >[CAN GATEWAY]
U1010 CONTROL UNIT (CAN)
U1010 CONTROL UNIT (CAN)
DescriptionINFOID:0000000006220588
CAN (Controller Area Network) is a serial communication
line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicle is equipped with many electronic control unit, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with two communication lines (CAN-H and CAN-L) allo wing a high rate of information transmission with less
wiring. Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Signal Chart. Refer to LAN-28, "
CAN COMMUNICATION SYSTEM : CAN Communica-
tion Signal Chart".
DTC LogicINFOID:0000000006220589
DTC DETECTION LOGIC
Diagnosis ProcedureINFOID:0000000006220590
1.REPLACE CAN GATEWAY
When DTC “U1010: CONTROL UNIT(CAN)” is detected, replace CAN gateway.
>> Replace CAN gateway. Refer to LAN-117, "
Removal and Installation".
DTCCONSULT-III display
description DTC Detection
Condition Possible cause
U1010 CONTROL UNIT(CAN) When an error is detected during the initial di-
agnosis for CAN contro
ller of CAN gateway. CAN gateway
Revision: 2010 May2011 QX56

PERIODIC MAINTENANCEMA-7
< PERIODIC MAINTENANCE >
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NOTE:
(1) After 60,000 miles (96,000 km) or 48 months, inspect every 15,000 miles (24,000 km) or 12 months. Replace the drive belts i
f found
damaged or if the auto belt tensioner reading reaches the maximum limit.
(2) If operating mainly in dusty conditions, more frequent maintenance may be required.
(3) Maintenance-free item. For service procedures, refer to FL section.
(4) First replacement interval is 105,000 miles (168,000 km) or 84 months. After first replacement, replace every 75,000 miles (120,000
km) or 60 months. Use only Genu ine NISSAN Long Life Antifreeze/Coo lant (blue) or equivalent with proper mixture ratio of 50% anti-
freeze and 50% demineralized or distilled water. Mixing any other type of coolant or the use of non-distilled water will reduce the life
expectancy of the factory-fill coolant.
(5) Periodic maintenance is not required. However, if valve noise increases, inspect valve clearance.
* Maintenance items and intervals with “*” are recommended by INFINITI for reliable vehicle operation. The owner need not perfo rm
such maintenance in order to maintain the emission warranty or manufacturer recall liability. Other maintenance items and inter vals are
required.
CHASSIS AND BODY
Abbreviations: R = Replace. I = Inspec t. Correct or replace if necessary.
Fuel filter NOTE (3) —
Engine coolant* NOTE (4) MA-13
Engine oil R R R R R R R RMA-17
Engine oil filter (Use genuine
NISSAN engine oil filter or
equivalent.)R R RRRRRR
MA-18
Spark plugs (Iridium-tipped
type)Replace every 105,000 miles (168,000 km).
MA-19
Intake & exhaust valve clear-
ance*NOTE (5)
EM-12
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
Section -
Page or -
Content Title
Perform at number of miles,
kilometers or months, which-
ever comes first. Miles x 1,000
(km x 1,000)
Months 33.75
(54)
27 37.5
(60)
30 41.25
(66)
33 45
(72)
36 48.75
(78)
39 52.5
(84)
42 56.25
(90)
45 60
(96)
48
MAINTENANCE OPERATION MAINTENANCE INTERVAL
Reference
Section -
Page or - Con- tent Title
Perform at number of miles,
kilometers or months,
whichever comes first. Miles x 1,000
(km x 1,000)
Months 3.75
(6)
3 7.50
(12)
6 11 . 2 5
(18)
9 15
(24)
12 18.75
(30)
15 22.5
(36)
18 26.25
(42)
21 30
(48)
24
Brake lines & cables I I MA-28
Brake fluid R RMA-28
Brake pads & rotors I I I IMA-30
BR-16
BR-18
BR-16
BR-18
Transfer fluid & differential
gear oil
NOTE (1) I I MA-21MA-24
MA-25
Automatic transmission flu-
id
NOTE (2)
—
Steering gear & linkage,
axle & suspension parts IIII
MA-31
MA-32
Tire rotation NOTE (3) MA-4WT-63
Drive shaft boots and pro-
peller shaft (4WD models) IIII MA-33MA-22
MA-23
MA-23
Revision: 2010 May2011 QX56

MA-8
< PERIODIC MAINTENANCE >
PERIODIC MAINTENANCE
NOTE:
(1) If towing a trailer, using a camper or a car-top carrier, or driving on rough or muddy roads, change (not just inspect) fluid /oil at every
30,000 miles (48,000 km) or 24 months.
(2) Automatic transmission fluid is maintenance-free.
(3) Refer to “Tire rotation” unde r the “General maintenance” heading earlier in this section.
Schedule 2INFOID:0000000006287731
EMISSION CONTROL SYSTEM
Abbreviations: R = Replace. I = Inspec t. Correct or replace if necessary. [ ]: At the mileage intervals only
Exhaust system I I I I MA-21
In-cabin microfilter R RVTL-17
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
Section -
Page or - Con- tent Title
Perform at number of miles,
kilometers or months,
whichever comes first. Miles x 1,000
(km x 1,000)
Months 3.75
(6)
3 7.50
(12)
6 11 . 2 5
(18)
9 15
(24)
12 18.75
(30)
15 22.5
(36)
18 26.25
(42)
21 30
(48)
24
MAINTENANCE OPERATION MAINTENANCE INTERVAL
Reference
Section - Page
or - Content Title
Perform at number of miles,
kilometers or months,
whichever comes first. Miles x 1,000
(km x 1,000) Months 33.75
(54)27 37.5
(60) 30 41.25
(66)33 45
(72) 36 48.75
(78)39 52.5
(84) 42 56.25
(90)45 60
(96) 48
Brake lines & cables I I MA-28
Brake fluid R RMA-28
Brake pads & rotors I I I IMA-30
BR-16
BR-18
BR-16
BR-18
Transfer fluid & differential
gear oil
NOTE (1) I I MA-21MA-24
MA-25
Automatic transmission flu-
id
NOTE (2)
—
Steering gear & linkage,
axle & suspension parts IIII
MA-31
MA-32
Tire rotation NOTE (3) MA-4WT-63
Drive shaft boots and pro-
peller shaft (4WD models)IIII MA-33MA-22
MA-23
MA-23
Exhaust system I I I I
MA-21
In-cabin microfilter R RVTL-17
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference Sec-
tion - Page or -
Content Title
Perform at number of miles, kilo-
meters or months, whichever
comes first. Miles x 1,000
(km x 1,000)
Months 7.5
(12)
6 15
(24)
12 22.5
(36)
18 30
(48)
24 37.5
(60)
30 45
(72)
36 52.5
(84)
42 60
(96)
48
Drive belts NOTE (1) I* MA-12
Air cleaner filter [R] [R]MA-17
EVAP vapor lines I* I*MA-20
Fuel lines I* I*MA-17
Fuel filter NOTE (2) —
Engine coolant* NOTE (3) MA-13
Revision: 2010 May2011 QX56

PERIODIC MAINTENANCEMA-9
< PERIODIC MAINTENANCE >
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NOTE:
(1) After 60,000 miles (96,000 km) or 48 months, inspect every 15,000 miles (24,000 km) or 12 months. Replace the drive belts i
f found
damaged or if the auto belt tensioner reading reaches the maximum limit.
(2) Maintenance-free item. For service procedures, refer to FL section.
(3) First replacement interval is 105,000 miles (168,000 km) or 84 months. After first replacement, replace every 75,000 miles (120,000
km) or 60 months. Use only Genu ine NISSAN Long Life Antifreeze/Coo lant (blue) or equivalent with proper mixture ratio of 50% anti-
freeze and 50% demineralized or distilled water. Mixing any other type of coolant or the use of non-distilled water will reduce the life
expectancy of the factory-fill coolant.
(4) Periodic maintenance is not required. However, if valve noise increases, inspect valve clearance.
* Maintenance items and intervals with “*” are recommended by INFINITI for reliable vehicle operation. The owner need not perfo rm
such maintenance in order to maintain the emission warranty or manufacturer recall liability. Other maintenance items and inter vals are
required.
CHASSIS AND BODY
Abbreviations: R = Replace. I = Inspec t. Correct or replace if necessary.
NOTE:
(1) Automatic transmission fluid is maintenance-free.
(2) Refer to “Tire rotation” under the “General maintenance” heading earlier in this section.
Engine oil R R R R R R R R
MA-17
Engine oil filter (Use genuine
NISSAN engine oil filter or equiv-
alent.)RRRR R RRR
MA-18
Spark plugs (Iridium-tipped type) Replace every 105,000 miles (168,000 km). MA-19
Intake & exhaust valve clear-
ance*NOTE (4)
EM-12
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference Sec-
tion - Page or -
Content Title
Perform at number of miles, kilo-
meters or months, whichever
comes first. Miles x 1,000
(km x 1,000)
Months 7.5
(12)
6 15
(24)
12 22.5
(36)
18 30
(48)
24 37.5
(60)
30 45
(72)
36 52.5
(84)
42 60
(96)
48
MAINTENANCE OPERATION MAINTENANCE INTERVAL
Reference Sec-
tion - Page or - Content Title
Perform at number of miles, kilo-
meters or months, whichever
comes first. Miles x 1,000
(km x 1,000) Months 7.5
(12) 6 15
(24) 12 22.5
(36) 18 30
(48) 24 37.5
(60) 30 45
(72) 36 52.5
(84) 42 60
(96) 48
Brake lines & cables I I I I MA-28
Brake fluid R RMA-28
Brake pads & rotors I I I IMA-30
BR-16
BR-18
BR-16
BR-18
Transfer fluid & differential gear
oil
IIIIMA-21MA-24
MA-25
Automatic transmission fluid NOTE (1)
—
Steering gear & linkage, axle &
suspension parts II
MA-31
MA-32
Tire rotation NOTE (2) MA-4WT-63
Drive shaft boots and propeller
shaft (4WD models) IIIIMA-33MA-22
MA-23
MA-23
Exhaust system I I
MA-21
In-cabin microfilter R R R RVTL-17
Revision: 2010 May2011 QX56

MA-10
< PERIODIC MAINTENANCE >
RECOMMENDED FLUIDS AND LUBRICANTS
RECOMMENDED FLUIDS AND LUBRICANTS
Fluids and LubricantsINFOID:0000000006220904
*1: For further details, see “Engine Oil Recommendation”.
*2: Using automatic transmission fluid other than Genuine NISSAN Matic S ATF will cause deterioration in driveability and autom atic
transmission durability, and may damage the automatic transmission, which is not covered by the INFINITI new vehicle limited wa rranty.
*3: DEXRON™ VI type ATF may also be used.
*4: Available in mainland U.S.A. through an INFINITI dealer.
*5: Using transfer fluid other t han Genuine NISSAN Transfer Fluid will damage the transfer , which is not covered by the INFINITI new
vehicle limited warranty. See an INFINITI retailer for recommended transfer fluid.
*6: For hot climates, Viscosity SAE 90 is suitable for ambient temperatures above 0 °C (32 °F)
*7: See an INFINITI dealer for service for synthetic oil.
*8: Using Hydraulic Suspen sion fluid other than Genuine NISSAN Hydraulic Susp ension fluid will damage the Hydraulic Suspension,
which is not covered by the INFINITI new vehicle limited warranty. See an INFINITI retailer for recommended hydraulic suspensio n fluid.
*9: The fluid capacity is the reference value.
Engine Oil RecommendationINFOID:0000000006287732
NISSAN recommends the use of an energy conservi ng oil in order to improve fuel economy.
Select only engine oils that meet the American Petroleum Institute (API) certification and International Lubri-
cant Standardization and Approval Committee (ILSAC) ce rtification and SAE viscosity standard. These oils
have the API certification mark on t he front of the container. Oils which do not have the specified quality label
should not be used as they could cause engine damage.
Capacity (Approximate) Recommended Fluids/Lubricants
US measure Imp measure Liter
Engine oil
Drain and refill With oil filter change 6-7/8 qt 5-3/4 qt 6.5
 Engine oil with API Certification Mark
*1
 Viscosity SAE 5W-30
Without oil filter change 6-4/8 qt 5-1/2 qt 6.2
Dry engine (engine overhaul) 8 qt 6-3/4 qt 7.6
Cooling system With reservoir tank 15
-6/8 qt 13-1/8 qt 14.9
Genuine NISSAN Long Life Antifreeze/
Coolant (blue) or equivalent
Reservoir tank 1 qt 7/8 qt 1.0
Automatic transmission fluid 10-5/8 qt
*98-3/4 qt*910.0*9Genuine NISSAN Matic S ATF *2
Power steering fluid 1-1/8 qt 7/8 qt 1.0
Genuine NISSAN PSF or equivalent*3
Brake fluid — — —Genuine NISSAN Super Heavy Duty
Brake Fluid*4 or equivalent DOT 3 (US FM-
VSS No. 116)
Transfer fluid 3-1/8 pt 2-5/8 pt 1.5 Genuine NISSAN Transfer Fluid for
ATX90A transfer*
5
Differential gear oilFront 1-5/8 pt 1-3/8 pt 0.75
Genuine NISSAN Differential Oil Hypoid
Super GL-5 80W-90 or API GL-5, Viscosity
SAE 80W-90*
6
Rear 3/3/4 pt 3-1/8 pt 1.75Genuine NISSAN Differential Oil Synthetic
75W-90 or API GL-5 synthetic gear oil, Vis-
cosity SAE 75W-90*7
Suspension fluid — — —
Genuine NISSAN Hydraulic Suspension
Fluid*8
Multi-purpose grease — — — NLGI No. 2 (Lithium soap base)
Revision: 2010 May2011 QX56