2011 INFINITI QX56 oil

SYSTEM SYMPTOMTM-173
< SYMPTOM DIAGNOSIS > [7AT: RE7R01B]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
*: Parts behind drum support is impossible to perform inspection by disassembly. Refer to TM-16, "TRANSMISSION : Cross-Sectional
View".
Func-
tion
trouble
Poor
pow-
er
trans-
mis-
sion
Slip With selector lever
in “D” position, ac-
celeration is ex-
tremely poor.
112 1 12
With selector lever
in “R” position, ac-
celeration is ex-
tremely poor. 11 11112
While starting off
by accelerating in
1GR, engine rac-
es. 112 1112
While accelerating
in 2GR, engine
races. 1 2 1 112
While accelerating
in 3GR, engine
races. 1 2 11 12
While accelerating
in 4GR, engine
races. 1 1 11 12
While accelerating
in 5GR, engine
races. 1 111 12
While accelerating
in 6GR, engine
races. 111112
While accelerating
in 7GR, engine
races. 1 111 2
Lock-up 1 1 1 2
No creep at all. 11211111 11121
Extremely large
creep. 1
Symptom
Diagnostic item
Oil pump
Torque converter
Low brake*
Front brake
High and low reverse clutch
Input clutch
Direct clutch
2346 brake
Reverse brake
1st one-way clutch
2nd one-way clutch
gear
control valve
Parking component
TM-270
TM-211TM-211TM-211TM-292TM-282TM-294TM-270TM-211TM-211TM-287TM-211TM-182TM-211
Revision: 2010 May2011 QX56

TM-174
< SYMPTOM DIAGNOSIS >[7AT: RE7R01B]
SYSTEM SYMPTOM
*: Parts behind drum support is impossible to perform inspection by disassembly. Refer to
TM-16, "TRANSMISSION : Cross-Sectional
View".Symptom
Diagnostic item
Oil pump
Torque converter
Low brake*
Front brake
High and low reverse clutch
Input clutch
Direct clutch
2346 brake
Reverse brake
gear
1st one-way clutch
2nd one-way clutch
control valve
Parking component
TM-270
TM-211TM-211TM-211TM-292TM-282TM-294TM-270TM-211TM-211TM-287TM-211TM-182TM-211
Function
trouble
Power trans-
mission cannot
be performed
Vehicle cannot run in all position. 1 1 2 1 1 1 1 1 1 2 1
Driving is not possible in “D” posi-
tion.
11211111 11121
Driving is not possible in “R” posi-
tion. 1 111121
Engine stall 1
Engine stalls when selector lever
shifted “N” → “D” or “R”. 1
Engine does not start in “N” or “P”
position. 1
Engine starts in position other
than “N” or “P”.
Poor operation Vehicle does not enter parking
condition.
1
Parking condition is not cancelled. 1
Vehicle runs with A/T in “P” posi-
tion. 2111111 21
Vehicle moves forward with the
“R” position. 211111 2
Vehicle runs with A/T in “N” posi-
tion. 2111111 2
Vehicle moves backward with the
“D” position. 12
Revision: 2010 May2011 QX56

A/T FLUIDTM-175
< PERIODIC MAINTENANCE > [7AT: RE7R01B]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
PERIODIC MAINTENANCE
A/T FLUID
InspectionINFOID:0000000006288673
FLUID LEAKAGE
 Check transaxle surrounding area (oil seal and plug etc.) for fluid leakage.
 If anything is found, repair or replace damaged parts and adjust A/
T fluid level. Refer to TM-95, "
Adjustment".
JSDIA1912ZZ
Revision: 2010 May2011 QX56

TM-182
< REMOVAL AND INSTALLATION >[7AT: RE7R01B]
CONTROL VALVE & TCM
CONTROL VALVE & TCM
Exploded ViewINFOID:0000000006226899
Removal and InstallationINFOID:0000000006226900
REMOVAL
1. Drain ATF through drain plug.
1. A/T 2. Snap ring 3. Control valve & TCM
4. Oil pan gasket 5. Oil pan 6. Clip
7. Oil pan mounting bolt 8. Overflow plug 9. Drain plug
10. Drain plug gasket 11. Magnet 12. Clip
13. Joint connector
Refer to
GI-4, "
Components" for symbols in the figure.
JSDIA1755GB
Revision: 2010 May2011 QX56

CONTROL VALVE & TCMTM-183
< REMOVAL AND INSTALLATION > [7AT: RE7R01B]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
2. Remove clips (1).
3. Remove oil pan (2) and oil pan gasket.
4. Remove magnets (1) from oil pan.
5. Remove snap ring (1) from joint connector (2).
6. Push joint connector (1).
7. Disconnect output speed sensor connector (A). CAUTION:
Be careful not to damage connector.
8. Disengage terminal clip ( ).
: Vehicle front
: Oil pan mounting bolt
JSDIA1591ZZ
JPDIA0009ZZ
JSDIA1756ZZ
JSDIA1757ZZ
JPDIA1104ZZ
Revision: 2010 May2011 QX56

CONTROL VALVE & TCMTM-185
< REMOVAL AND INSTALLATION > [7AT: RE7R01B]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
CAUTION:
 Make sure that turbine revolution sensor securely installs input speed sensor holes (A).
 Hang down output speed senso r harness toward outside so
as not to disturb installation of the control valve & TCM.
 Adjust A/T assembly harness connector of the control valve
& TCM to terminal hole of transmission case.
 Assemble it so that manual valve (1) cutout is engaged with manual plate (2) projection.
- Install bolts and clip (1) to the control valve & TCM. Tighten bolt (E) to the specified torque before tightening the other than bolts.
*: Reamer bolt
 Refer to the following when installing oil pan to transmission case.CAUTION:
 Clean foreign materials (gear wear particles) that adhere on the inside of the oil pan and on the
magnet, and then assembly.
 Completely remove all moisture, oil and old gasket, etc. from oil pan gasket mounting surface of
transmission case and oil pan.
 Never reuse oil pan gasket and oil pan mounting bolts.
 Install oil pan gasket in the di rection to align hole position.
- Tighten the oil pan mounting bolts to the specified torque in the numerical order as shown in the figure after temporarily tightening
them.
JPDIA1106ZZ
JPDIA0012ZZ
: Vehicle front
Bolt symbol Length mm (in) Number of bolts A 43 (1.69) 3
B 40 (1.57) 2
C 54 (2.13) 6
D 50 (1.97) 2
E* 50 (1.97) 1
: Vehicle front
JPDIA1105ZZ
JSDIA1592GB
Revision: 2010 May2011 QX56

TM-186
< REMOVAL AND INSTALLATION >[7AT: RE7R01B]
CONTROL VALVE & TCM
Inspection and Adjustment
INFOID:0000000006226901
INSPECTION AFTER REMOVAL
Check foreign materials in oil pan to help determine causes of mal-
function. If the ATF is very dark, smells burned, or contains foreign
particles, the frictional material (clutches, band) may need replace-
ment. A tacky film that will not wipe clean indicates varnish build up.
Varnish can cause valves, servo, and clutches to stick and can
inhibit pump pressure.
 If frictional material is det ected, perform A/T fluid cooler
cleaning. Refer to TM-97, "
Cleaning".
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".
 Perform decel G sensor calibration when replacing control valve & TCM. Refer to TM-92, "
Special Repair
Requirement".
SCIA5199E
Revision: 2010 May2011 QX56

TM-190
< REMOVAL AND INSTALLATION >[7AT: RE7R01B]
PARKING COMPONENTS
16. Remove return spring (1) from parking pawl (2).
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
 Never reuse seal rings and drain plug gasket.
 Apply petroleum jelly to n
eedle bearing and seal rings.
 Insert the tip of parking rod between the parki ng pawl and the parking actuator support when assem-
bling the rear extension assembly.
 Refer to the followings installing rear extension assembly.
- Apply recommended sealant (Genuine Anaerobic Liquid Gasket or
equivalent. Refer to GI-22, "
Recommended Chemical Products
and Sealants".) to rear extension assembly as shown in the figure.
CAUTION:
Completely remove all moisture, oil and old sealant, etc. from
the transmission case and rear extension assembly mounting
surfaces.
- Tighten rear extension assembly bolts to the specified torque.
2WD : InspectionINFOID:0000000006233260
INSPECTION AFTER REMOVAL
SCIA6180J
Sealant starting
point and end-
point (A) : Start and finish
point shall be in
the center of two bolts.
Overlap width of
sealant starting
point and end-
point (B) : 3 – 5 mm (0.12 – 0.20 in)
Sealant width (C) : 1.0 – 2.0 mm (0.04 – 0.08 in)
Sealant height (C) : 0.4 – 1.0 mm (0.016 – 0.04 in)
JSDIA1855ZZ
1: Bracket
A: Bolt
B : Self-sealing bolt
JSDIA1845ZZ
Revision: 2010 May2011 QX56