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-402
< REMOVAL AND INSTALLATION >[CVT: RE0F10E]
CVT OIL WARMER SYSTEM
*: Refer to the illustrations for the specific position of each hose clamp tab.
• The illustrations indicate the view from the hose ends.
• When installing hose clamps the center line of each clamp tab
should be positioned as shown.
WATER HOSE : InspectionINFOID:0000000009464361
INSPECTION AFTER INSTALLATION
Start and warm up the engine. Visually check that there is no leakage of engine coolant and CVT fluid.
CVT FLUID COOLER HOSE
CVT FLUID COOLER HOSE : Exploded ViewINFOID:0000000009464362
COMPONENT PARTS LOCATION
(D): Vehicle front
(E) : Vehicle upper
JSDIA1292ZZ
CVT oil warmer Hose clamp CVT fluid cooler hose A
CVT fluid cooler hose B Transaxle assembly
: To radiator
: Always replace after every disassembly.
JSDIA3631GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
TM-404
< REMOVAL AND INSTALLATION >[CVT: RE0F10E]
CVT OIL WARMER SYSTEM
• The illustrations indicate the view from the hose ends.
• When installing hose clamps, the center line of each clamp tab should be positioned as shown.
CVT FLUID COOLER HOSE : InspectionINFOID:0000000009464364
INSPECTION AFTER INSTALLATION
Check for CVT fluid leakage and check CVT fluid level. Refer to TM-377, "Inspection".
CVT OIL WARMER
CVT OIL WARMER : Exploded ViewINFOID:0000000009464365
CVT OIL WARMER : Removal and InstallationINFOID:0000000009464366
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 clot h around the cap. Slowly turn it a quarter turn to
allow built-up pressure to escape. Carefully remove the cap by turning it all the way.
CAUTION:
Perform when the engine is cold.
1. Remove front under cover. Refer to EXT-28, "Removal and Installation"
.
2. Remove CVT water hose inlet and CVT water hose outlet from CVT oil warmer. Refer to TM-199,
"WATER HOSE : Exploded View".
3. Remove CVT fluid cooler hose inlet and CVT fluid cooler hose outlet from CVT oil warmer. Refer to TM-
201, "CVT FLUID COOLER HOSE : Exploded View".
(C): Front
ALDIA0366ZZ
Transaxle assembly CVT oil warmer
: N·m (kg-m, ft-lb)
JSDIA5031GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
CVT OIL WARMER SYSTEMTM-405
< REMOVAL AND INSTALLATION > [CVT: RE0F10E]
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4. Remove CVT oil warmer bolts, then remove CVT oil warmer from vehicle.
INSTALLATION
Installation is in the reverse order of removal.
CVT OIL WARMER : InspectionINFOID:0000000009464367
INSPECTION AFTER INSTALLATION
• Check for CVT fluid leakage and check CVT fluid level. Refer to TM-377, "Inspection".
• Start and warm up the engine. Visually check that there is no leakage of engine coolant and CVT fluid.
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
TRANSAXLE ASSEMBLYTM-409
< UNIT REMOVAL AND INSTALLATION > [CVT: RE0F10E]
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•
• When installing the drive plate to torque converter nuts, tighten them temporarily. then tighten the nuts to the
specified torque.
Inspection and AdjustmentINFOID:0000000009464374
INSPECTION BEFORE INSTALLATION
After inserting a torque converter to the CVT, check dimension (A)
with in the reference value limit.
INSPECTION AFTER INSTALLATION
Check the following items:
• CVT fluid leakage, refer to TM-377, "Inspection"
.
• For CVT position, refer to TM-289, "Inspection"
.
• Start the engine and check for coolant leakage from the parts which are removed and reinstalled.
ADJUSTMENT AFTER INSTALLATION
• Adjust the CVT fluid level. Refer to TM-286, "Adjustment".
• Perform "ADDITIONAL SERVICE WHEN REPLACE TRANSAXLE ASSEMBLY". Refer to TM-283, "Descrip-
tion".
Bolt No. 12345
Number of bolts12114
Bolt length
“”mm (in) 55 (2.17) 39 (1.54) 35 (1.38) 50 (1.97) 45 (1.77)
Tightening torque
N·m (kg-m, ft-lb) 74.5 (7.6, 55) 50.0
(5.1, 37)
AWDIA1031ZZ
B: Scale
C : Straightedge
Dimension (A) : Refer to TM-413, "Torque Converter".
JPDIA0115ZZ
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
VTL-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000009951791
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISS AN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery and wait at least three minutes before performing any service.
Precaution for WorkINFOID:0000000009461571
• When removing or disassembling each component, be careful not to damage or deform it. If a component may be subject to interference, be sure to protect it with a shop cloth.
• When removing (disengaging) components with a screwdriver or similar tool, be sure to wrap the component with a shop cloth or vinyl tape to protect it.
• Protect the removed parts with a s hop cloth and prevent them from being dropped.
• Replace a deformed or damaged clip.
• If a part is specified as a non-reusable part, always replace it with a new one.
• Be sure to tighten bolts and nuts securely to the specified torque.
• After installation is complete, be sure to check that each part works properly.
• Follow the steps below to clean components:
- Water soluble dirt:
• Dip a soft cloth into lukewarm water, wring the water out of the cloth and wipe the dirty area.
• Then rub with a soft, dry cloth.
- Oily dirt:
• Dip a soft cloth into lukewarm water with mild detergent (concentration: within 2 to 3%) and wipe the dirty area.
• Then dip a cloth into fresh water, wring the water out of the cloth and wipe the detergent off.
• Then rub with a soft, dry cloth.
- Do not use organic solvent such as thinner, benzene, alcohol or gasoline.
- For genuine leather seats, use a genuine leather seat cleaner.
Revision: November 20132014 Altima NAM
WCS-12
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (METER)
SPECIAL FUNCTION
Special menu
W/L ON HISTORY
• “W/L ON HISTORY” indicates the “TIME” w hen 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: No warning/ indicator lamp history is stored.
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.
LDW IND
[ON/OFF] Displays [ON/OFF] condition of LDW warning indicator message in the informa-
tion display.
TPMS MALF
[ON/OFF] Displays [ON/OFF] condition of TPMS warning indicator.
Display item [Unit]
MAIN
SIGNALS Description
Display item Description
W/L ON HISTORY Lighting history of warning lamp and indicator lamp can be checked.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM