engine oil INFINITI QX56 2011 Factory Service Manual

A/T FLUIDTM-95
< BASIC INSPECTION > [7AT: RE7R01B]
C
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d. When the ATF starts to drip, tighten the drain plug to the oil pan to the specified torque. Refer to TM-182,
"Exploded View".
CAUTION:
Never reuse drain plug and drain plug gasket.
e. Remove overflow plug from oil pan.
f. Install the charging pipe (A) to the overflow plug hole. CAUTION:
Tighten the charging pipe by hand.
g. Install the bucket pump hose (B) to the charging pipe. CAUTION:
Insert the bucket pump hose all the way to the end of the
charging pipe.
h. Fill approximately 3 liters (3-1/8 US qt, 2-5/8 lmp qt) of the ATF.
i. Remove the bucket pump hose to remove the charging pipe, and then temporarily tighten the overflow plug to the oil pan.
CAUTION:
Quickly perform the procedure to avoid ATF leakage from
the oil pan.
j. Lift down the vehicle.
k. Start the engine.
l. Make the ATF temperature approximately 40 °C (104 °F).
NOTE:
The ATF level is greatly affected by the temperat ure. Always check the ATF temperature on “ATF TEMP
1” of “Data Monitor” using CONSULT-III.
m. Park vehicle on level surface and set parking brake.
n. Shift the selector lever through each gear pos ition. Leave selector lever in “P” position.
o. Lift up the vehicle when the ATF temperature reaches 40 °C (104 °F), and remove the overflow plug from
the oil pan.
CAUTION:
Perform “Step 4-o” with the engine at idle.
p. When the ATF starts to drip, tighten the overflow plug to the oil pan to the specified torque. Refer to TM-
182, "Exploded View".
CAUTION:
Never reuse overflow plug.
AdjustmentINFOID:0000000006226792
CAUTION:
 Use only Genuine NISSAN Matic S ATF. Never mix with other ATF.
 Using ATF other than Genuine NI SSAN Matic S ATF will cause deteri oration in driveability and A/T
durability, and may damage the A/T, which is not covered by the INFINITI new vehicle limited war-
ranty.
 When filling ATF, be careful not to sca tter heat generating parts such as exhaust.
 Always maintain the ATF temperature within between 35 °C (95 °F) and 45 °C (113 °F) while checking
with CONSULT-III when the ATF level adjustment is performed.
JSDIA1335ZZ
Recommended fluid and fluid capacity : Refer to TM-296, "General Specification".
Revision: 2010 May2011 QX56

TM-96
< BASIC INSPECTION >[7AT: RE7R01B]
A/T FLUID
1. Install the O-ring (315268E000) (A) to the charging pipe
(310811EA5A) (B).
2. Start the engine.
3. Make the ATF temperature approximately 40 °C (104 °F).
NOTE:
The ATF level is greatly affected by the temperature. Always
check the ATF temperature on “ATF TEMP 1” of “Data Monitor”
using CONSULT-III.
4. Park vehicle on level surface and set parking brake.
5. Shift the selector lever through each gear position. Leave selec- tor lever in “P” position.
6. Lift up the vehicle.
7. Check the ATF leakage from transmission.
8. Remove overflow plug from oil pan.
9. Install the charging pipe (A) to the overflow plug hole. CAUTION:
Tighten the charging pipe by hand.
10. Install the bucket pump hose (B) to the charging pipe. CAUTION:
Insert the bucket pump hose all the way to the end of the
charging pipe.
11. Fill approximately 0.5 liters (1/2 US qt, 1/2 lmp qt) of the ATF.
12. Check that the ATF leaks when removing the charging pipe and the bucket pump hose. If the A TF does not leak, refill the ATF.
CAUTION:
Perform “Step 12” with the engine at idle.
13. When the ATF starts to drip, tighten the overflow pl ug to the oil pan to the specified torque. Refer to TM-
182, "Exploded View".
CAUTION:
Never reuse overflow plug.
JSDIA1334ZZ
JSDIA1335ZZ
Revision: 2010 May2011 QX56

TM-100
< BASIC INSPECTION >[7AT: RE7R01B]
STALL TEST
STALL TEST
Inspection and JudgmentINFOID:0000000006226793
INSPECTION
1. Inspect the amount of engine oil. Replenish the engine oil if necessary.
2. Drive for about 10 minutes to warm up the vehicle
so that the A/T fluid temperature is 50 to 80°C (122 to
176 °F). Inspect the amount of AT F. Replenish if necessary.
3. Securely engage the parking brake so that the tires do not turn.
4. Start the engine, apply foot brake, and place selector lever in “D” position.
5. Gradually press down the accelerator pedal while holding down the foot brake.
6. Quickly read off the stall speed, and quickly release the accelerator pedal. CAUTION:
Never hold down the accelerator pedal for more than 5 seconds during this test.
7. Shift the selector lever to “N” position.
8. Cool down the ATF. CAUTION:
Run the engine at idle for at least 1 minute.
9. Repeat steps 5 through 8 with selector lever in “R” position.
JUDGMENT OF STALL TEST
O: Stall speed within standard value position
H: Stall speed higher than standard value
L: Stall speed lower than standard value
Stall test standard value position
Stall speed : Refer to TM-297, "Stall Speed".
Selector lever position
Possible location of malfunction
“D” and “M” “R”
Stal l s pe ed HO
 Low brake
 1st one-way clutch
 2nd one-way clutch
OH  Reverse brake
 1st one-way clutch
 2nd one-way clutch
L L  Engine and torque converter one-way clutch
H H  Line pressure low
Does not shift-up “D” or “M” position 1 → 2 Slipping in 2GR, 3GR, 4GR or 6GR 2346 brake slippage
Does not shift-up “D” or “M” position 2 → 3 Slipping in 3GR, 4GR or 5GR Direct clutch slippage
Does not shift-up “D” or “M” position 3 → 4 Slipping in 4GR, 5GR, 6GR or 7GR High and low reverse clutch slippage
Does not shift-up “D” or “M” position 4 → 5 Slipping in 5GR, 6GR or 7GR Input clutch slippage
Does not shift-up “D” or “M” position 5 → 6 Slipping in 2GR, 3GR, 4GR or 6GR 2346 brake slippage
Does not shift-up “D” or “M” position 6 → 7 Slipping in 7GR Front brake slippage
Revision: 2010 May2011 QX56

TM-170
< 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
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
Poor
perfor-
mance
Driving
perfor-
mance Shift point is high in “D” position.
Shift point is low in “D” position.
Large
shock
When
shifting
gears →
“D” position 1 2 2
→ “R” position 1 1 2
1GR ⇔ 2GR 1 2
2GR ⇔ 3GR 1 2
3GR ⇔ 4GR 2 1 2
4GR ⇔ 5GR 1 1 2
5GR ⇔ 6GR 1 1 2
6GR ⇔ 7GR 1 1 2
Downshift when accel-
erator pedal is de-
pressed 211111 11 2
Upshift when accelera-
tor pedal is released 211111 11 2
Lock-up 1 2
Judder Lock-up 1 2
Strange noise In “R” position 1 1 1 1 2
In “N” position 1 1 1 2
In “D” position 1 1 1 1 2
Engine at idle 1 1 1 2
Revision: 2010 May2011 QX56

SYSTEM SYMPTOMTM-173
< SYMPTOM DIAGNOSIS > [7AT: RE7R01B]
C
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G H
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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

TM-196
< REMOVAL AND INSTALLATION >[7AT: RE7R01B]
OUTPUT SPEED SENSOR
4. Remove clips (1).
5. Remove oil pan (2) and oil pan gasket.
6. Support A/T assembly with a transmission jack.
CAUTION:
When setting transmission j ack, place wooden blocks to
prevent from damaging control valve & TCM and transmis-
sion case.
7. Remove rear engine mounting cross member with power tool. Refer to TM-205, "
2WD : Exploded View".
8. Remove engine mounting insulator (rear). Refer to TM-205, "
2WD : Exploded View".
9. Remove tightening bolts for rear extension assembly and trans- mission case.
10. Tap rear extension assembly with a soft hammer (A). CAUTION:
Be careful not to damage rear extension case.
11. Remove rear extension assembly (with needle bearing) from transmission case.
: Vehicle front
: Oil pan mounting bolt
1 : Bracket
A: Bolt
B : Self-sealing bolt
JSDIA1591ZZ
JSDIA1845ZZ
JPDIA0027ZZ
SCIA3431E
Revision: 2010 May2011 QX56

WCS
SYSTEMWCS-7
< SYSTEM DESCRIPTION >
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WARNING CHIME SYSTEM : Fail-SafeINFOID:0000000006369726
FA I L - S A F E
The combination meter activates the fail-safe contro l if CAN communication with each unit is malfunctioning.
Seat belt warning chimeThe warning chime sounds when the driver
seat belt is unfastened with the ignition switch
in ON position. BCMWCS-11,
"SEAT BELT
WARNING
CHIME : Sys-
tem Descrip-
tion"
Parking brake release warning chime
The warning chime sounds when the ignition
switch is in ON position with the parking brake
in operation and the vehicle speed 7 km/h (4.3
MPH) or more. Combination meterWCS-12,
"PA R K I N G
BRAKE RE-
LEASE WARN-
ING CHIME :
System De-
scription"
Warning functions Out line Warning judgment unit Refer to
Function Specifications
Speedometer
Reset to zero by suspending communication.
Tachometer
Engine coolant temperature gauge
Engine oil pressure gauge
Illumination control When suspending communication, changes to nighttime mode.
Information display Odo/trip meter An indicated value is maintained at communications blackout.
Shift position indicator The display turns OFF by suspending communication.
Door open warning The display turns OFF by suspending communication.
Buzzer The buzzer turns OFF by suspending communication.
Revision: 2010 May2011 QX56

WCS
DIAGNOSIS SYSTEM (COMBINATION METER)
WCS-17
< SYSTEM DESCRIPTION >
C
D E
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G H
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K L
M B A
O P
*: DDS (hill descent control) NOTE:
Some items are not available according to vehicle specification.
SPECIAL FUNCTION
Special menu
W/L ON HISTORY
 Stores histories when warning/indicator lamp is turned on.
 “W/L ON HISTORY” indicates the “TIME” when the warning/ indicator lamp is turned on.
 The “TIME” above is:
- 0: The condition that the warning/indicator lamp has been turned on 1 or more times after starting the engine and waiting for 30 seconds.
- 1 - 39: The number of times the engine was restarted after the 0 condition.
- NO W/L ON HISTORY: Stores NO (0) turning on history of warning/indicator lamp.
NOTE:
 W/L ON HISTORY is not stored for approximately 30 seconds after the engine starts.
 Brake warning lamp does not store any history when the parking brake is applied or the brake fluid level gets
low.
Display Item
FUEL LOW SIG
[On/Off] Status of fuel level low warning signal to output to AV control unit via CAN com-
munication.
TOW MODE IND
[On/Off] Status of TOW mode indicator lamp judged from TOW mode indicator lamp signal
received from TCM with CAN communication line.
BUZZER
[On/Off] XBuzzer status (in the combination meter) is detected from the buzzer output signal
received from each unit via CAN communication and the warning output condition
of the combination meter.
Display item [Unit]
MAIN
SIGNALS Description
Display item Description
W/L ON HISTORY Lighting history of warning lamp and indicator lamp can be checked.
Display item Description
ABS W/L Lighting history of ABS warning lamp.
VDC/TCS IND Lighting history of VDC OFF indicator lamp.
SLIP IND Lighting history of VDC warning lamp.
BRAKE W/L Lighting history of brake warning lamp.
DOOR W/L Lighting history of door open warning.
TRUNK/GLAS-H This item is displayed, but cannot be monitored.
OIL W/L Lighting history of oil pressure warning lamp.
C-ENG W/L Lighting history of malfunction indicator lamp.
C-ENG2 W/L This item is displayed, but cannot be monitored.
CRUISE IND Lighting history of CRUISE indicator lamp.
SET IND Lighting history of SET indicator lamp.
CRUISE W/L Lighting histor y of CRUISE warning lamp.
BA W/L Lighting history of IBA OFF indicator lamp.
O/D OFF IND This item is displayed, but cannot be monitored.
ATC/T-AMT W/L Lighting history of A/T CHECK warning lamp.
ATF TEMP W/L This item is displayed, but cannot be monitored.
CVT IND This item is displayed, but cannot be monitored.
SPORT IND This item is displayed, but cannot be monitored.
Revision: 2010 May2011 QX56

WCS
COMBINATION METERWCS-29
< ECU DIAGNOSIS INFORMATION >
C
DE
F
G H
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J
K L
M B A
O P
Fail-SafeINFOID:0000000006222689
FA I L - S A F E
The combination meter activates the fail-safe contro l if CAN communication with each unit is malfunctioning.
37
(R/Y) Ground Non-manual mode signal Input Ignition
switch
ONSelector manual mode po-
sition
12 V
Other than the above 0 V
38
(L/W) Ground Manual mode shift down
signal InputIgnition
switch
ON Selector lever DOWN oper-
ation
0 V
Other than the above 12 V
39
(Y/B) Ground Manual mode shift up sig-
nal InputIgnition
switch
ON Selector lever UP operation 0 V
Other than the above 12 V
40
(G/W) Ground Manual mode signal Input Ignition
switch
ONSelector manual mode po-
sition
0 V
Other than the above 12 V
Te r m i n a l N o .
(Wire color) Description
ConditionVa l u e
(Approx.)
+ – Signal name Input/
Output
Function Specifications
Speedometer
Reset to zero by suspending communication.
Tachometer
Engine coolant temperature gauge
Engine oil pressure gauge
Illumination control When suspending communication, changes to nighttime mode.
Information display Odo/trip meter An indicated value is maintained at communications blackout.
Shift position indicator The display turns OFF by suspending communication.
Door open warning The display turns OFF by suspending communication.
Buzzer The buzzer turns OFF by suspending communication.
Revision: 2010 May2011 QX56