torque NISSAN TEANA 2014 Service Manual

TM-324
< DTC/CIRCUIT DIAGNOSIS >[CVT: RE0F10E]
P0743 TORQUE CONVERTER
P0743 TORQUE CONVERTER
DTC LogicINFOID:0000000009464278
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Be careful of the driving speed.
1.PREPARATION BEFORE WORK
If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at
least 10 seconds, then perform the next test.
>> GO TO 2.
2.PREPARATION BEFORE OPERATION
With CONSULT
1. Start the engine.
2. Select “Data Monitor” in “TRANSMISSION”.
3. Select “FLUID TEMP”.
4. Confirm that the CVT fluid temper ature is in the following range.
With GST
1. Start the engine.
2. Set the CVT fluid to 20 °C (68 °F) or more.
NOTE:
When the ambient temperature is 20 °C (68 °F), the CVT fluid usually increases to 50 to 80 °C (122 to
176 °F) with driving in an urban area for approximately 10 minutes.
Is the CVT fluid 20
°C (68°F) or more?
YES >> GO TO 3.
NO >> 1. Warm the transaxle. 2. GO TO 3.
3.CHECK DTC DETECTION
1. Drive the vehicle.
2. Maintain the following conditions for 10 seconds or more.
3. Stop the vehicle.
4. Check the first trip DTC.
Is
“P0743” detected?
YES >> Go to TM-325, "Diagnosis Procedure".
NO >> INSPECTION END
DTC CONSULT screen terms
(Trouble diagnosis content) DTC detection condition Possible causes
P0743 TORQUE CONVERTER
(Torque Converter Clutch Cir-
cuit Electrical) When all of the following conditions are satis-
fied and this state is maintained for 0.48 sec-
onds:
• TCM power supply voltage: More than 11 V
• TCM judges that solenoid valve circuit is shorted to ground. • Harness or connector
(Torque converter clutch solenoid valve
circuit is shorted to ground)
• Torque converter clutch solenoid valve
FLUID TEMP : 20 °C (68 °F) or more
Selector lever : “D” position
Vehicle speed : 40 km/h (25 MPH) or more
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P0743 TORQUE CONVERTERTM-325
< DTC/CIRCUIT DIAGNOSIS > [CVT: RE0F10E]
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Diagnosis ProcedureINFOID:0000000009464279
1.CHECK CIRCUIT BETWEE N TCM AND CVT UNIT
1. Turn ignition switch OFF.
2. Disconnect TCM connector and CVT unit connector.
3. Check continuity between TCM harness connector terminal and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace malfunctioning parts.
2.CHECK CIRCUIT BETWEEN CVT UNIT AND GROUND
Check resistance between CVT unit harness connector terminal and ground.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> GO TO 3.
3.CHECK CIRCUIT BETW EEN CVT UNIT AND CONTROL VALVE
1. Disconnect control valve connector. Refer to TM-387, "Exploded View"
.
2. Check continuity between CVT unit harness connecto r terminal and control valve harness connector ter-
minal.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace terminal code assembly. Refer to TM-387, "Exploded View"
.
4.CHECK CIRCUIT BETWEEN CONTROL VALVE AND GROUND
Check resistance between control valve harness connector terminal and ground.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> There is malfunction of torque converter clutch solenoid valve. Replace transaxle assembly. Refer
to TM-407, "Removal and Installation"
.
TCM
—Continuity
Connector Terminal
F16 38 Ground Not existed
CVT unit — Condition Resistance
Connector Terminal
F209 2 Ground CVT fluid temperature: 20
°C (68 °F) 5.5 – 7.0 Ω
CVT fluid temperature: 50 °C (122 °F) 6.0 – 8.0 Ω
CVT fluid temperature: 80 °C (176 °F) 6.5 – 8.5 Ω
CVT unit Control valve
Continuity
Connector Terminal Connector Terminal
F2092F2073Existed
Control valve — Condition Resistance
Te r m i n a l
3Ground CVT fluid temperature: 20
°C (68 °F) 5.5 – 7.0 Ω
CVT fluid temperature: 50 °C (122 °F) 6.0 – 8.0 Ω
CVT fluid temperature: 80 °C (176 °F) 6.5 – 8.5 Ω
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

TM-326
< DTC/CIRCUIT DIAGNOSIS >[CVT: RE0F10E]
P0744 TORQUE CONVERTER
P0744 TORQUE CONVERTER
DTC LogicINFOID:0000000009464280
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Be careful of the driving speed.
1.PREPARATION BEFORE WORK
If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at
least 10 seconds, then perform the next test.
>> GO TO 2.
2.PREPARATION BEFORE OPERATION
With CONSULT
1. Start the engine.
2. Select “Data Monitor” in “TRANSMISSION”.
3. Select “FLUID TEMP”.
4. Confirm that the CVT fluid temper ature is in the following range.
With GST
1. Start the engine.
2. Set the CVT fluid to 20 °C (68 °F) or more.
NOTE:
When the ambient temperature is 20 °C (68 °F), the CVT fluid usually increases to 50 to 80 °C (122 to
176 °F) with driving in an urban area for approximately 10 minutes.
Is the CVT fluid 20
°C (68°F) or more?
YES >> GO TO 3.
NO >> 1. Warm the transaxle. 2. GO TO 3.
3.CHECK DTC DETECTION
1. Drive the vehicle.
2. Maintain the following conditions for 10 seconds or more.
3. Stop the vehicle.
4. Check the first trip DTC.
Is
“P0744” detected?
YES >> Go to TM-327, "Diagnosis Procedure".
DTCCONSULT screen terms
(Trouble diagnosis content) DTC detection condition Possible causes
P0744 TORQUE CONVERTER
(Torque converter clutch cir-
cuit intermittent) When all of the following conditions are satis-
fied and this state is maintained for 30 sec-
onds:
• TCM power supply voltage: More than 11 V
• P0717 is not detected.
• CAN communication is normal
• Torque converter slip speed: (40+vihicle
speed/2) rpm
• LU pressure: More than 0.2 MPa • Torque converter clutch solenoid valve
• Control valve assembly
• Torque converter
FLUID TEMP : 20 °C (68 °F) or more
Selector lever : “D” position
Accelerator pedal position : 0.5/8 or more
Vehicle speed : 40 km/h (25 MPH) or more
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P0744 TORQUE CONVERTERTM-327
< DTC/CIRCUIT DIAGNOSIS > [CVT: RE0F10E]
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NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009464281
1.CHECK INTERMITTENT INCIDNT
Refer to GI-43, "Intermittent Incident"
.
Is the inspection result normal?
YES >> Replace transaxle assembly. Refer to TM-407, "Removal and Installation".
NO >> Repair or replace the malfunction items.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

CVT CONTROL SYSTEMTM-373
< SYMPTOM DIAGNOSIS > [CVT: RE0F10E]
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SYMPTOM DIAGNOSIS
CVT CONTROL SYSTEM
Symptom TableINFOID:0000000009464330
• The diagnosis item number indicates the order of check. Start checking in the order from 1.
• Perform diagnoses of symptom table 1 before symptom table 2.
Symptom Table 1
Symptom
Engine system
CAN communication line (U1000)
Transmission range switch (P0705, P0706)
Input speed sensor (P0717)
Primary speed sensor (P0715)
Output speed sensor (P2765)
CVT fluid temperature sensor (P0711, P0712, P0713)
Primary pressure sensor (P084C, P084D)
Secondary pressure sensor (P0841, P0847, P0848)
Torque converter clutch solenoid valve (P0740, P0743, P0744)
Stal l te st
CVT position
Power supply
Control valve
CVT fluid level and state
Ignition switch and starter
EC-630
TM-263
TM-288TM-289TM-366TM-387TM-286
PG-19
,
STR-6
Shift Shock Large shock (N
→ D position) 1 4 7 3 6 2 8 5
Large shock (N → R position) 1 4 7 3 6 2 8 5
Shock is too large for lock-up. 2 3 6 1 5 4
Slips/Will Not
Engage Vehicle cannot be started from D po-
sition. 8 3 5 6 7 91011 4 212131
Vehicle cannot be started from R po-
sition. 8 3 5 6 7 91011 4 212131
Does not lock-up. 26834109111257 131
Does not hold lock-up condition. 26834109111257 131
Lock-up is not released. 2 6 3 4 5 7 8 1
With selector lever in D position, ac-
celeration is extremely poor. 345789121011 2613141
With selector lever in R position, ac-
celeration is extremely poor. 345789121011 2613141
Slips at lock-up. 26834109111257 131
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

TM-374
< SYMPTOM DIAGNOSIS >[CVT: RE0F10E]
CVT CONTROL SYSTEM
OtherNo creep at all. 243789101112 5613141
Vehicle cannot run in any position. 8 256791011 3412131
With selector lever in D position,
driving is not possible. 8 256791011 3412131
With selector lever in R position,
driving is not possible. 8 256791011 3412131
Judder occurs during lock-up. 2 6 3 4 5 7 8 1
Strange noise in D position. 2 3 4 1
Strange noise in R position. 2 3 4 1
Strange noise in N position. 2 3 4 1
Vehicle does not decelerate by en-
gine brake. 73 456 2 81
Maximum speed low. 23 567 89114 101
With selector lever in P position, ve-
hicle does not enter parking condi-
tion or, with selector lever in another
position, parking condition is not
cancelled. 12
Vehicle runs with CVT in P position. 1 3 4 2
Vehicle runs with CVT in N position. 1 3 4 2
Engine stall. 26 34 8957 101
Engine stalls when selector lever
shifted N → D or R. 26 34 5 71
Engine speed does not return to
idle. 24 3 51
Engine does not start in N or P posi-
tion. 321
Engine starts in positions other than
N or P. 321
Symptom
Engine system
CAN communication line (U1000)
Transmission range switch (P0705, P0706)
Input speed sensor (P0717)
Primary speed sensor (P0715)
Output speed sensor (P2765)
CVT fluid temperature sensor (P0711, P0712, P0713)
Primary pressure sensor (P084C, P084D)
Secondary pressure sensor (P0841, P0847, P0848)
Torque converter clutch solenoid valve (P0740, P0743, P0744)
Stall te st
CVT position
Power supply
Control valve
CVT fluid level and state
Ignition switch and starter
EC-630
TM-263
TM-288TM-289TM-366TM-387TM-286
PG-19
,
STR-6
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

CVT CONTROL SYSTEMTM-375
< SYMPTOM DIAGNOSIS > [CVT: RE0F10E]
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Symptom Table 2
Symptom
Torque converter
Transmission range switch
Oil pump
Forward clutch
Reverse brake
Planetary gear
Bearings
Parking mechanism
Stop lamp switch
Shift lock solenoid
CVT shift selector
TM-410
TM-407BR-13TM-369TM-378
Shift Shock
Large shock (N
→ D position) 2 1
Large shock (N → R position) 2 1
Shock is too large for lock-up. 1
Slips/Will
Not Engage Vehicle cannot be started from D
position. 312
Vehicle cannot be started from R
position. 41 2 3
Does not lock-up. 1 3 2
Does not hold lock-up condition. 1 3 2
Lock-up is not released. 1 2
With selector lever in D position,
acceleration is extremely poor. 13 2
With selector lever in R position,
acceleration is extremely poor. 142 3
Slips at lock-up. 1 2
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

TM-376
< SYMPTOM DIAGNOSIS >[CVT: RE0F10E]
CVT CONTROL SYSTEM
OtherNo creep at all. 1 6 2 4 5 3
Vehicle cannot run in all posi-
tions. 1 2453 6
With selector lever in D position,
driving is not possible. 12435
With selector lever in R position,
driving is not possible. 12435
Judder occurs during lock-up. 1
Strange noise in D position. 1 2 4 3 5
Strange noise in R position. 1 2 4 3
Strange noise in N position. 1 2 3
Maximum speed low. 1 5 2 4 3
With selector lever in P position,
vehicle does not enter parking
condition or, with selector lever in
another position, parking condi-
tion is not cancelled. 1
Vehicle runs with CVT in P posi-
tion. 21
Vehicle runs with CVT in N posi-
tion. 231
Engine stall. 1
Engine stalls when selector lever
shifted N → D or R. 1
When brake pedal is depressed
with ignition switch ON, selector-
lever cannot be shifted from P po-
sition to other position. 123
When brake pedal is not de-
pressed with ignition switch ON,
selector lever can be shifted from
P position to other position. 123
Symptom
Torque converter
Transmission range switch
Oil pump
Forward clutch
Reverse brake
Planetary gear
Bearings
Parking mechanism
Stop lamp switch
Shift lock solenoid
CVT shift selector
TM-410
TM-407BR-13TM-369TM-378
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

CONTROL VALVETM-391
< REMOVAL AND INSTALLATION > [CVT: RE0F10E]
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5. Connect the control valve harness connectors (A).
CAUTION:
• Do not pinch the harness be tween the control valve and
the transaxle case.
• Securely insert the harness connector until it clicks and
locks.
6. Install CVT fluid temperature sensor bracket (1).
7. Install the bracket (1).
8. Install O-ring to oil strainer assembly. CAUTION:
• Do not reuse O-ring.
• Apply CVT fluid NS-3 to O-ring.
9. Install the oil strainer assembly (1) using the oil strainer assem- bly bolts (A) and (B).
NOTE:
Remove the bracket and adjust the position again if the bolt hole
positions are not aligned.
10. Install the manual plate (1) while aligning with the groove (A) of the manual valve.
CAUTION:
Assemble the manual plate whil e aligning its end with the
cutout ( ) of the manual valve.
11. Install the spring washer (2) and the lock-nut (3), and then tighten to the specified torque.
: Front
: Bolt
JSDIA3686ZZ
: Bolt
: Front
JPDIA0658ZZ
: Front
Bolt Bolt length (mm) Number of bolts A12 2
B44 1
(A) : Manual shaft : Front
JPDIA0657ZZ
JPDIA0962ZZ
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

TM-392
< REMOVAL AND INSTALLATION >[CVT: RE0F10E]
CONTROL VALVE
12. Install the snap ring (1) to the CVT unit harness connector (A).
13. Connect the CVT unit harness connector.
14. install fender protector side cover (LH).
15. Install the magnet while aligning it with the convex side of oil
pan.
CAUTION:
Completely clean the iron powder from the magnet area of
oil pan and the magnet.
16. Install the oil pan to the transaxle case with the following proce- dure.
1. Install the oil pan gasket to the oil pan. CAUTION:
• Completely wipe out any moisture, oil, and old gasket from the oil pan gasket surface and
bolt hole of oil pan and transaxle case.
• Do not reuse oil pan gasket.
2. Install the oil pan assembly to the transaxle case, and then temporarily tighten the oil pan bolt.
3. Tighten the oil pan bolts in the order shown to the specified torque.
4. Tighten the oil pan bolts again clockwise from (1) shown to the specified torque.
17. Install drain plug gasket to drain plug. CAUTION:
Do not reuse drain plug gasket.
18. Install drain plug to oil pan.
19. Connect battery negative terminal. Refer to PG-73, "Removal
and Installation (Battery)".
20. Fill with CVT fluid to transaxle assembly. Refer to TM-377, "Inspection"
.
InspectionINFOID:0000000009464346
INSPECTION AFTER REMOVAL
Check oil pan for foreign material.
• If a large amount of worn material is found, clutch plate may be worn.
• If iron powder is found, bearings, gears, or clutch plates may be worn.
• If aluminum powder is found, bushing may be worn, or chips or burrs of aluminum casting parts may enter.
Check points where wear is found in all cases.
INSPECTION AFTER INSTALLATION
Check the CVT fluid level and leakage. Refer to TM-377, "Inspection".
: Front
JPDIA0654ZZ
JPDIA0664ZZ
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM