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
TRANSAXLE ASSEMBLYTM-407
< UNIT REMOVAL AND INSTALLATION > [CVT: RE0F10E]
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UNIT REMOVAL AND INSTALLATION
TRANSAXLE ASSEMBLY
Exploded ViewINFOID:0000000009464372
Removal and InstallationINFOID:0000000009464373
REMOVAL
WARNING:
Do not remove the radiator cap when the engine is hot. Serious burns could occur from high pressure
coolant escaping from the radiator. Wrap a thick cloth around the cap. Slowly turn it a quarter turn to
allow built-up pressure to escap e. Carefully remove the cap by turning it all the way.
CAUTION:
• Perform when the engine is cold.
• When replacing TCM and transaxle assembly as a set, replace transaxle assembly first and then
replace TCM. Refer to TM-81, "Description"
.
NOTE:
When removing components such as hoses, tubes/lines, etc. , cap or plug openings to prevent fluid from spill-
ing.
Gusset Transaxle assembly O-ring
CVT fluid charging pipe Water outlet CVT fluid charging pipe cap
: For the tightening torque, refer to TM-407, "Removal and Installation"
.
: Always replace after every disassembly.
: N·m (kg-m, ft-lb)
: N·m (kg-m, in-lb)
: Apply petroleum jelly
JSDIA3922GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
TM-408
< UNIT REMOVAL AND INSTALLATION >[CVT: RE0F10E]
TRANSAXLE ASSEMBLY
1. Remove the engine and transaxle with the front suspension member as a unit. Refer to
EM-220,
"Removal and Installation".
2. Disconnect the transaxle harness connectors.
3. Disconnect the CVT oil warmer water hoses from engine side. Refer to TM-400, "WATER HOSE :
Removal and Installation".
4. Remove the CVT fluid charging pipe.
5. Remove the transaxle to engine and engine to transaxle bolts.
6. Separate the engine from the transaxle and remove the engine from the front suspension member. Refer to EM-220, "Removal and Installation"
.
NOTE:
Using paint, put matching marks on the drive plat e and torque converter when removing the torque con-
verter to drive plate nuts.
7. Remove transmission bracket.
8. Lift the transaxle from the front suspension member.
INSTALLATION
Installation is in the reverse order of removal.
NOTE:
Write down the serial number of the new transaxle assembly.
CAUTION:
• When replacing an engine or transaxle you must m ake sure any dowels are installed correctly during
re-assembly
• Improper alignment caused by missing dowels m ay cause vibration, oil leaks or breakage of drive
train components.
• Do not reuse O-rings or copper sealing washers.
• When turning crankshaft, turn it clockwi se as viewed from the front of the engine.
• When tightening the nuts for the torque converte r while securing the crankshaft pulley bolt, be sure
to confirm the tightening torque of the crankshaft pulley bolt. Refer to EM-174, "Removal and Instal-
lation".
• After converter is installed to drive plate, rota te crankshaft several turns to check that CVT rotates
freely without binding.
• When installing the CVT to the en gine, align the matching mark on the drive plate with the matching
mark on the torque converter.
When installing CVT assembly to th e engine assembly, attach the bolts in accordance with the follow-
ing standard.
JSDIA4208GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM