2011 INFINITI QX56 service

TM-92
< BASIC INSPECTION >[7AT: RE7R01B]
ADDITIONAL SERVICE WHEN RE
PLACING CONTROL VALVE & TCM
ADDITIONAL SERVICE WHEN REPLACING CONTROL VALVE & TCM
DescriptionINFOID:0000000006233274
Decel G sensor calibration must be performed when replacing control valve & TCM.
Special Repair RequirementINFOID:0000000006233275
1.PREPARATION BEFORE CALIBRATION PROCEDURE
1. Park the vehicle on a flat road.
2. Adjust pressure in all tires to the specified value. Refer to WT-69, "
Tire Air Pressure".
>> GO TO 2.
2.PERFORM CALIBRATION
With CONSULT-III
1. Turn ignition switch ON.
CAUTION:
Never start the engine.
2. Select “G SENSOR CALIBRATION” in “Work Support” in “TRANSMISSION”.
3. Touch “START”. CAUTION:
Never give any motion to the vehicle during the calibration.
Is
“completed” displayed?
YES >> GO TO 3.
NO >> Perform the calibration again.
3.CHECK DTC
With CONSULT-III
1. Turn ignition switch OFF and wait 10 seconds or more.
2. Turn ignition switch ON.
3. Select “Self Diagnostic Results” in “ABS”.
Is
“C1145” or “C1146” detected?
YES >> Refer to BRC-51, "DTC Index".
NO >> Calibration end.
Revision: 2010 May2011 QX56

A/T FLUID COOLERTM-97
< BASIC INSPECTION > [7AT: RE7R01B]
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A/T FLUID COOLER
CleaningINFOID:0000000006233276
Whenever an A/T is replaced, the A/ T fluid cooler mounted in the radiator must be inspected and cleaned.
Metal debris and friction material, if present, can becom e trapped in the A/T fluid cooler. This debris can con-
taminate the newly serviced A/T or, in severe cases, can bl ock or restrict the flow of ATF. In either case, mal-
function of the newly se rviced A/T may result.
Debris, if present, may build up as ATF enters the cooler inlet. It will be necessary to back flush the cooler
through the cooler outlet in order to flush out any built up debris.
CLEANING PROCEDURE
1. Position an oil pan under the A/T inlet and outlet cooler hoses.
2. Identify the inlet and outlet fluid cooler hoses.
3. Disconnect the A/T fluid cooler inlet and outlet rubber hoses
from the steel cooler tubes or by-pass valve.
NOTE:
Replace the cooler hoses if rubber material from the hose
remains on the tube fitting.
4. Allow any ATF that remains in the cooler hoses to drain into the oil pan.
5. Insert the extension adapter hose of a can of Transmission Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler out-
let hose.
CAUTION:
 Wear safety glasses and rubber gloves when spraying theTransmission Cooler Cleaner.
 Spray Transmission Cooler Cleaner only with adequate
ventilation.
 Avoid contact with eyes and skin.
 Never breath vapors or spray mist.
6. Hold the hose and can as high as possible and spray Transmis- sion Cooler Cleaner in a continuous stream into the cooler outlet
hose until ATF flows out of the cooler inlet hose for 5 seconds.
7. Insert the tip of an air gun into the end of the cooler outlet hose.
8. Wrap a shop rag around the air gun tip and of the cooler outlet hose.
9. Blow compressed air regulated to 5 to 9 kg/cm
2 (71 to 128 psi)
through the cooler outlet hose for 10 seconds to force out any
remaining ATF.
10. Repeat steps 5 through 9 three additional times.
11. Position an oil pan under the banjo bolts that connect the A/T fluid cooler steel lines to the A/T.
12. Remove the banjo bolts.
13. Flush each steel line from the cooler side back toward the A/T by spraying Transmission Cooler Cleaner in a continuous stream for 5 seconds.
14. Blow compressed air regulated to 5 to 9 kg/cm
2 (71 to 128 psi) through each steel line from the cooler
side back toward the A/T for 10 seconds to force out any remaining ATF.
15. Ensure all debris is removed from the steel cooler lines.
16. Ensure all debris is removed from the banjo bolts and fittings.
17. Perform “DIAGNOSIS PROCEDURE”.
JPDIA0711GB
JPDIA0712GB
JPDIA0713GB
Revision: 2010 May2011 QX56

A/T FLUID COOLERTM-99
< BASIC INSPECTION > [7AT: RE7R01B]
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b. If one or more pieces of debr is are found that are over 1 mm
(0.040 in) in size and/or peeled clutch facing material is found in
the coffee filter, the A/T fluid c ooler is not serviceable. The A/T
fluid cooler/radiator must be replaced and the inspection proce-
dure is ended. Refer to TM-202, "
Exploded View".
InspectionINFOID:0000000006233277
After performing all procedures, ensure that all remaining oil is cleaned from all components.
SCIA7031E
Revision: 2010 May2011 QX56

TM-194
< REMOVAL AND INSTALLATION >[7AT: RE7R01B]
REAR OIL SEAL
 As shown in the figure, use the drift [64 mm (2.52 in) dia. commer-
cial service tool] (A) to drive rear oil seal into adapter case assem-
bly until it is flush.
CAUTION:
 Never reuse rear oil seal.
 Apply ATF to rear oil seal.
4WD : Inspection and AdjustmentINFOID:0000000006226904
INSPECTION AFTER INSTALLATION
Check A/T fluid leakage. Refer to TM-175, "Inspection".
ADJUSTMENT AFTER INSTALLATION
Adjust A/T fluid level. Refer to TM-95, "Adjustment".
JPDIA0040ZZ
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-241
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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56. Remove manual plate (1) from detent spring (2).
57. Remove parking rod (3) from manual plate.
58. Install manual plate to detent spring.
59. Use a pin punch [4 mm (0.16 in) dia. commercial service tool] to knock out retaining pin (1).
60. Remove manual plate from manual shaft.
61. Remove manual shaft from transmission case.
62. Remove manual shaft oil seals using a flat-bladed screwdriver. CAUTION:
Be careful not to scratch transmission case.
JPDIA1131ZZ
JPDIA1132ZZ
SCIA5715E
SCIA5716E
SCIA2331E
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-243
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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68. Remove rear oil seal from rear extension (B) or adapter case (C) using a flat-bladed screwdriver (A).
CAUTION:
Be careful not to scratch adapter case.
AssemblyINFOID:0000000006226918
1. As shown in the figure, use a drift [22 mm (0.87 in) dia. commer-cial service tool] to drive manual shaft oil seals into the transmis-
sion case until it is flush.
CAUTION:
 Never reuse manual shaft oil seals.
 Apply ATF to manual shaft oil seals.
2. Install detent spring to transmission case. Tighten detent spring bolt to the specified torque.
B: 2WD
C: 4WD
JSDIA0157ZZ
SCIA5259E
: Bolt
JPDIA1134ZZ
Revision: 2010 May2011 QX56

TM-248
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
21. As shown in the figure, use the drift to drive rear oil seal into the
rear extension (2WD) (A) or adapter case (4WD) (B) until it is
flush.
CAUTION:
 Never reuse rear oil seal.
 Apply ATF to rear oil seal.
22. Install return spring (1) to parking pawl (2).
23. Install parking pawl (with return spring) and pawl shaft to rear extension (2WD) or adapter case (4WD).
24. Install parking actuator support to rear extension (2WD) or adapter case (4WD).
1 : Drift [SST: 33400001 (J-26082)]
2 : Drift [Commercial service tool Ø64 mm (2.52 in)]
JSDIA1914ZZ
SCIA6180J
SCIA3424E
SCIA3423E
Revision: 2010 May2011 QX56

TM-296
< SERVICE DATA AND SPECIFICATIONS (SDS) [7AT: RE7R01B]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
General SpecificationINFOID:0000000006226944
*1: Refer to
MA-10, "Fluids and Lubricants".
*2: The fluid capacity is the reference value.
Vehicle Speed at Which Gear Shifting OccursINFOID:0000000006226945
NORMAL MODE
Unit: km/h (MPH)
 At half throttle, the accelerator opening is 4/8 of the full opening.
TOW MODE
Applied model 2WD 4WD
Transmission model code number 1XR1E 1XR1D
Stall torque ratio 1.93 : 1
Transmission gear ratio 1st 4.887
2nd 3.170
3rd 2.027
4th 1.412
5th 1.000
6th 0.864
7th 0.775
Reverse 4.041
Recommended fluid Genuine NISSAN Matic S ATF
*1
Fluid capacity10.0 liter (10-5/8 US qt, 8-3/4 Imp qt)*2
CAUTION:
 Use only Genuine NISSAN Matic S ATF. Never mix with other ATF.
 Using ATF other than Genuine NISSAN Matic S ATF will cause deterioration driveability and A/T durability, and may damage
the A/T, which is not covered by the INFINITI new vehicle limited warranty.
Gear position Throttle position
Full throttle Half throttle
D
1 → D256 – 60 (35 – 37) 42 – 46 (26 – 29)
D
2 → D389 – 97 (55 – 60) 73 – 81 (45 – 50)
D
3 → D4141 – 151 (88 – 94) 112 – 122 (70 – 76)
D
4 → D5205 – 215 (127 – 134) 134 – 144 (83 – 89)
D
5 → D6250 – 260 (155 – 162) 173 – 183 (108 – 114)
D
6 → D7250 – 260 (155 – 162) 206 – 216 (128 – 134)
D
7 → D6240 – 250 (149 – 155) 161 – 171 (100 – 106)
D
6 → D5240 – 250 (149 – 155) 130 – 140 (81 – 87)
D
5 → D4180 – 190 (112 – 118) 84 – 94 (52 – 58)
D
4 → D3126 – 136 (78 – 85) 58 – 68 (36 – 42)
D
3 → D266 – 74 (41 – 46) 30 – 38 (19 – 24)
D
2 → D123 – 27 (14 – 17) 10 – 14 (6 – 9)
Revision: 2010 May2011 QX56