Page 5257 of 5598
![INFINITI QX56 2011 Factory Service Manual
SYSTEM SYMPTOMTM-169
< SYMPTOM DIAGNOSIS > [7AT: RE7R01B]
C
EF
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M A
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TM
N
O P
SYMPTOM TABLE 2
Symptom Diagnostic item
Control cable
Output speed sensor
Vehicle speed signal
Accelerator pe INFINITI QX56 2011 Factory Service Manual
SYSTEM SYMPTOMTM-169
< SYMPTOM DIAGNOSIS > [7AT: RE7R01B]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
SYMPTOM TABLE 2
Symptom Diagnostic item
Control cable
Output speed sensor
Vehicle speed signal
Accelerator pe](/manual-img/42/57033/w960_57033-5256.png)
SYSTEM SYMPTOMTM-169
< SYMPTOM DIAGNOSIS > [7AT: RE7R01B]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
SYMPTOM TABLE 2
Symptom Diagnostic item
Control cable
Output speed sensor
Vehicle speed signal
Accelerator pedal position sensor
Engine speed signal
Input speed sensor
A/T fluid temperature sensor
Battery voltage
Transmission range switch
Manual mode switch
Stop lamp switch
Line pressure solenoid valve
Torque converter clutch solenoid valve
Low brake solenoid valve
Front brake solenoid valve
High and low reverse clutch solenoid valve
Input clutch solenoid valve
Direct clutch solenoid valve
2346 brake solenoid valve
Anti-interlock solenoid valve
Starter relay
CAN communication
TM-101
TM-110TM-138TM-137TM-112TM-109TM-107TM-151TM-106TM-144TM-159TM-131TM-128TM-148TM-136TM-147TM-133TM-150TM-149TM-132TM-104TM-103
Function
trouble
Power transmis-
sion cannot be
performed Vehicle cannot run in all
position.
3 2 111111111
Driving is not possible in
“D” position. 3 2 111111111
Driving is not possible in
“R” position. 32111
Engine stall 4 5 5 6 3 2 1
Engine stalls when selec-
tor lever shifted “N” → “D”
or “R”. 455 3 2 1
Engine does not start in
“N” or “P” position. 312 1
Engine starts in position
other than “N” or “P”. 32 1
Poor operation Vehicle does not enter
parking condition.
12
Parking condition is not
cancelled. 12
Vehicle runs with A/T in
“P” position. 12
Vehicle moves forward
with the “R” position. 12
Vehicle runs with A/T in
“N” position. 12
Vehicle moves backward
with the “D” position. 12
Revision: 2010 May2011 QX56
Page 5258 of 5598
![INFINITI QX56 2011 Factory Service Manual
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".Sympt INFINITI QX56 2011 Factory Service Manual
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".Sympt](/manual-img/42/57033/w960_57033-5257.png)
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
Page 5259 of 5598
![INFINITI QX56 2011 Factory Service Manual
SYSTEM SYMPTOMTM-171
< 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, "TRANSMISSI INFINITI QX56 2011 Factory Service Manual
SYSTEM SYMPTOMTM-171
< 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, "TRANSMISSI](/manual-img/42/57033/w960_57033-5258.png)
SYSTEM SYMPTOMTM-171
< 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".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
Func-
tion
trouble
Gear
does no
change“D” posi-
tion Locks in 1GR 1 1 1 2
Locks in 2GR
1
Locks in 3GR 1
Locks in 4GR 1
Locks in 5GR 1
Locks in 6GR 1
Locks in 7GR 1
1GR → 2GR 1 1 1 2
2GR → 3GR 1 2
3GR → 4GR 2111 2
4GR → 5GR 1 1 2
5GR → 6GR 1 2
6GR → 7GR 2111 2
5GR → 4GR 1 2
4GR → 3GR 2 1 2
3GR → 2GR 1 1 2
2GR → 1GR 1 1 1 2
Does not lock-up 1211111 11 2
“M” posi-
tion 1GR
⇔ 2GR 211111 11 2
2GR ⇔ 3GR 211111 11 2
3GR ⇔ 4GR 211111 11 2
4GR ⇔ 5GR 211111 11 2
5GR ⇔ 6GR 211111 11 2
6GR ⇔ 7GR 211111 11 2
Revision: 2010 May2011 QX56
Page 5260 of 5598
TM-172
< SYMPTOM DIAGNOSIS >[7AT: RE7R01B]
SYSTEM SYMPTOM
SymptomDiagnostic 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
Func-
tion
trouble
Poor
shift-
ingSlip
When
shifting
gears 1GR
⇔ 2GR 1 1 1 2
2GR ⇔ 3GR 1 1 2
3GR ⇔ 4GR 1 2 1 2
4GR ⇔ 5GR 1 1 1 2
5GR ⇔ 6GR 1 1 1 2
6GR ⇔ 7GR 1 1 1 2
En-
gine
brake
does
not
work “D” position
→ “M” position 1 1 1 1 1 2
“M” posi-
tion 7GR
→ 6GR 1 1 1 2
6GR → 5GR 1 1 1 2
5GR → 4GR 1 1 1 2
4GR → 3GR 1 2 1 2
3GR → 2GR 1 1 1 1 1 2
2GR → 1GR 1 1 1 1 2
Revision: 2010 May2011 QX56
Page 5261 of 5598
![INFINITI QX56 2011 Factory Service Manual
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, "TRANSMISSI INFINITI QX56 2011 Factory Service Manual
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, "TRANSMISSI](/manual-img/42/57033/w960_57033-5260.png)
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
Page 5262 of 5598
![INFINITI QX56 2011 Factory Service Manual
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".Sympt INFINITI QX56 2011 Factory Service Manual
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".Sympt](/manual-img/42/57033/w960_57033-5261.png)
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
Page 5263 of 5598
A/T FLUIDTM-175
< PERIODIC MAINTENANCE > [7AT: RE7R01B]
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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
Page 5264 of 5598
![INFINITI QX56 2011 Factory Service Manual
TM-176
< REMOVAL AND INSTALLATION >[7AT: RE7R01B]
A/T SHIFT SELECTOR
REMOVAL AND INSTALLATION
A/T SHIFT SELECTOR
Exploded ViewINFOID:0000000006226891
Removal and InstallationINFOID:0000000006226892
R INFINITI QX56 2011 Factory Service Manual
TM-176
< REMOVAL AND INSTALLATION >[7AT: RE7R01B]
A/T SHIFT SELECTOR
REMOVAL AND INSTALLATION
A/T SHIFT SELECTOR
Exploded ViewINFOID:0000000006226891
Removal and InstallationINFOID:0000000006226892
R](/manual-img/42/57033/w960_57033-5263.png)
TM-176
< REMOVAL AND INSTALLATION >[7AT: RE7R01B]
A/T SHIFT SELECTOR
REMOVAL AND INSTALLATION
A/T SHIFT SELECTOR
Exploded ViewINFOID:0000000006226891
Removal and InstallationINFOID:0000000006226892
REMOVAL
1. Shift the selector lever to “N” position.
2. Remove knob cover (A) below selector lever downward.
3. Pull lock pin (1) out of selector lever knob (2).
4. Remove selector lever knob.
5. Remove center console assembly. Refer to
IP-25, "
Removal and
Installation".
CAUTION:
When disconnecting connector from shift position switch,
never twist or apply an excessi ve load to the connector.
6. Remove cluster lid C lower. Refer to IP-14, "
Removal and Instal-
lation".
7. Disconnect A/T shift selector connector and main harness from A/T shift selector assembly.
8. Shift the selector lever to “P” position.
9. Remove control cable from A/T shift selector assembly. Refer to TM-178, "
Removal and Installation".
10. Remove A/T shift selector assembly.
1. Lock pin 2. Selector lever knob 3. A/T shift selector assembly
4. Bracket 5. Adapter
Refer to GI-4, "
Components" for symbols in the figure.
JSDIA1554GB
JSDIA1676ZZ
Revision: 2010 May2011 QX56