4WD INFINITI QX56 2011 Factory Service Manual

TM-236
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
vi. Remove parking gear (1) from output shaft (2).
vii. Remove seal rings (1) from output shaft.
b.
4WD
i. Remove tightening bolts for adapter case assembly and trans- mission case.
JPDIA0029ZZ
JPDIA0030ZZ
1: Bracket
A: Bolt
B : Self-sealing bolt
JPDIA1155ZZ
Revision: 2010 May2011 QX56

TM-242
< UNIT DISASSEMBLY AND ASSEMBLY >[7AT: RE7R01B]
TRANSMISSION ASSEMBLY
63. Remove detent spring (1) from transmission case.
64. Remove needle bearing (1) from rear extension (2WD) or
adapter case (4WD).
65. Remove parking actuator support from rear extension (2WD) or adapter case (4WD).
66. Remove parking pawl (with return spring) and pawl shaft from rear extension (2WD) or adapter case (4WD).
67. Remove return spring (1) from parking pawl (2).
: Bolt
JPDIA1134ZZ
SCIA6179J
SCIA3423E
SCIA3424E
SCIA6180J
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

TRANSMISSION ASSEMBLYTM-249
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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25. Install needle bearing (1) to rear extension (2WD) or adapter case (4WD).
CAUTION:
Check the direction of needle bearing. Refer to TM-222,
"Location of Needle Bearings and Bearing Races".
26. Install rear extension assembly (2WD) or adapter ca se assembly (4WD) according to the following proce-
dures.
a. 2WD
i. Install seal rings (1) to output shaft.
ii. Install parking gear (1) to output shaft (2).
iii. Install output shaft in transmission case. CAUTION:
Be careful not to mistake front for rear because both sides
looks similar. (Thinner end is front side.)
SCIA6179J
JPDIA0030ZZ
JPDIA0029ZZ
SCIA5030E
Revision: 2010 May2011 QX56

TRANSMISSION ASSEMBLYTM-251
< UNIT DISASSEMBLY AND ASSEMBLY > [7AT: RE7R01B]
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b. 4WD
i. Install seal rings (1) to output shaft.
ii. Install parking gear (1) to output shaft (2).
iii. Install output shaft in transmission case. CAUTION:
Be careful not to mistake front for rear because both sides
looks similar. (Thinner end is front side.)
iv. Install bearing race to output shaft.
JPDIA0030ZZ
JPDIA0029ZZ
SCIA5030E
SCIA5245E
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

SERVICE DATA AND SPECIFICATIONS (SDS)
TM-297
< SERVICE DATA AND SPECIFICATIONS (SDS) [7AT: RE7R01B]
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Unit: km/h (MPH)
 At half throttle, the accelerator opening is 4/8 of the full opening.
 The vehicle speed included in the above table is a speed with the tow mode ON and a heavy load towed.
Vehicle Speed at Which Lock-up Occurs/ReleasesINFOID:0000000006226946
 Vehicle speed with D5 position.
 At closed throttle, the accelerator opening is less than 1/8 condition. (Closed throttle position signal OFF)
 At half throttle, the accelerator opening is 4/8 of the full opening.
Stall SpeedINFOID:0000000006226947
2WD MODELS
4WD MODELS
*: Refer to DLN-18, "4WD SYSTEM : System Description".
Torque ConverterINFOID:0000000006226948
Gear position Throttle position
Full throttle Half throttle
D
1 → D257 – 61 (35 – 38) 50 – 54 (31 – 34)
D
2 → D389 – 97 (55 – 60) 76 – 84 (47 – 52)
D
3 → D4141 – 151 (88 – 94) 116 – 126 (72 – 78)
D
4 → D5205 – 215 (127 – 134) 159 – 169 (99 – 105)
D
5 → D6251 – 261 (156 – 162) 189 – 199 (117 – 124)
D
6 → D7251 – 261 (156 – 162) 215 – 225 (134 – 140)
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 → D124 – 28 (15 – 17) 10 – 14 (6 – 9)
Throttle position Vehicle speed km/h (MPH)
Lock-up ON Lock-up OFF
Closed throttle 50 – 58 (31 – 36) 50 – 58 (31 – 36)
Half throttle 163 – 171 (101 – 106) 163 – 171 (101 – 106)
Sta ll sp ee d 1,777 – 2,077 rpm
4WD shift switch* AUTO, 4H 4L
Stall speed 1,777 – 2,077 rpm 1,540 – 1,840 rpm
Dimension between end of converter housing and torque converter 24.0 mm (0.94 in)
Revision: 2010 May2011 QX56

WCS-8
< SYSTEM DESCRIPTION >
SYSTEM
LIGHT REMINDER WARNING CHIME
LIGHT REMINDER WARNING CHIME : System DiagramINFOID:0000000006222543
LIGHT REMINDER WARNING CHIME : System DescriptionINFOID:0000000006222544
WARNING CHIME OPERATION CONDITIONS
If all of the following conditions are fulfilled.
WARNING CHIME CANCEL CONDITIONS
Warning lamp/indicator lampABS warning lamp
The lamp turns ON by suspending communication.
VDC warning lamp
Brake warning lamp
IBA OFF indicator lamp
4WD warning lamp
Malfunction indicator lamp
VDC OFF indicator lamp
CRUISE warning lamp
Low tire pressure warning lamp The lamp blinking caused by suspending communication.
High beam indicator lamp
The lamp turns OFF by suspending communication.
Turn signal indicator lamp
Tail lamp indicator lamp
A/T CHECK indicator lamp
Key warning lamp
ATP warning lamp
Lane departure warning lamp
LDP ON indicator lamp
CRUISE indicator lamp
Oil pressure warning lamp
SNOW mode indicator lamp
TOW mode indicator lamp
CK SUSP indicator lamp
BSW indicator lamp
Function Specifications
JSNIA2421GB
Operation conditions
Ignition switch OFF or ACC position
Combination switch (Lighting
switch) 1st or 2nd position
Driver door Open [front door switch (driver side) ON]
Revision: 2010 May2011 QX56

WCS
DIAGNOSIS SYSTEM (COMBINATION METER)
WCS-15
< SYSTEM DESCRIPTION >
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FR FOG IND
[Off] This item is displayed, but cannot be monitored.
RR FOG IND
[Off] This item is displayed, but cannot be monitored.
LIGHT IND
[On/Off] Status of light indicator lamp detected from position light request signal is received
from BCM via CAN communication.
OIL W/L
[On/Off] Status of oil pressure warning lamp detected from oil pressure switch signal is re-
ceived from BCM via CAN communication.
MIL
[On/Off] Status of malfunction indicator lamp detected from malfunctioning indicator lamp
signal is received from ECM via CAN communication.
GLOW IND
[Off] This item is displayed, but cannot be monitored.
CRUISE IND
[On/Off]  Status of CRUISE indicator detected from ASCD status signal is received from
ECM via CAN communicat ion. (ASCD models)
 Status of CRUISE indicator de tected from meter display signal is received from
ADAS control unit via CAN communication. (ICC models)
SET IND
[On/Off] Status of SET indicator detected from meter display signal is received from ADAS
control unit via CAN communication.
CRUISE W/L
[On/Off] Status of CRUISE warning lamp
judged from ICC warning lamp signal received
from ADAS control unit with CAN communication line.
BA W/L
[On/Off] Status of IBA OFF indicator lamp judged from IBA OFF indicator lamp signal re-
ceived from ADAS control unit with CAN communication line.
ATC/T-AMT W/L
[On/Off] Status of A/T CHECK warning lamp judged
from A/T CHECK indicator lamp signal
received from TCM with CAN communication line.
ATF TEMP W/L
[Off] This item is displayed, but cannot be monitored.
4WD W/L
[On/Off] Status of 4WD warning lamp judged from 4WD warning lamp signal received from
4WD control unit with
CAN communication line.
FUEL W/L
[On/Off] Low-fuel warning lamp status detected by the identified fuel level.
WASHER W/L
[On/Off] Status of low washer fluid warning judged from washer level switch input to com-
bination meter.
AIR PRES W/L
[On/Off] Status of low tire pressure warning lamp judged from low tire pressure warning
lamp signal received from BCM with CAN communication line.
KEY G/Y W/L
[On/Off] Status of KEY warning lamp
(Green/Yellow) detected from KEY warning lamp sig-
nal is received from BCM via CAN communication.
KEY KNOB W/L
[Off] This item is displayed, but cannot be monitored.
AFS OFF IND
[On/Off] Status of AFS OFF indicator lamp judged from AFS OFF indicator lamp signal re-
ceived from AFS control unit with CAN communication line.
DDS
* W/L
[Off] This item is displayed, but cannot be monitored.
LANE W/L
[On/Off] Status of lane departure warning lamp judged from lane departure warning lamp
signal received from ADAS control unit with CAN communication line.
LDP IND
[On/Off] Status of LDP ON indicator lamp judged from LDP ON indicator lamp signal re-
ceived from ADAS control unit with CAN communication line.
AT P W / L
[On/Off] Status of ATP warning lamp judged from ATP warning lamp signal received from
4WD control unit with
CAN communication line.
DCA IND
[Off] This item is displayed, but cannot be monitored.
CHECK SUS IND
[On/Off] Status of CK SUSP indicator lamp judged from CK SUSP indicator lamp signal re-
ceived from E-SUS control unit with CAN communication line.
Display item [Unit]
MAIN
SIGNALS Description
Revision: 2010 May2011 QX56