TCM
TM-59
< ECU DIAGNOSIS INFORMATION > [CVT: RE0F10D]
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Protection Control INFOID:0000000009464003
The TCM becomes the protection control status temporar ily to protect the safety when the safety of TCM and
transmission is lost. It automatically returns to the normal status if the safety is secured.
The TCM has the following protection control.
CONTROL FOR WHEEL SPIN
TORQUE IS REDUCED WHEN DRIVING WITH THE REVERSE GEAR
CONTROL WHEN FLUID TEMPERATURE IS HIGH
REVERSE PROHIBIT CONTROL
DTC Inspection Priority ChartINFOID:0000000009464004
If multiple malfunction codes are detected at the same time, check each code according to the DTC check pri-
ority list below.
Control When a wheel spin is detected, the engine output and gear ratio are limited and the line pressure is increased.
Limits engine output when a wheel spin occurs in any of right and left drive wheels.
Vehicle behavior in
control If the accelerator is kept depressing during wheel spin, the engine revolution and vehicle speed are limited to
a certain degree.
Normal return condi-
tion Wheel spin convergence returns the control to the normal control.
Control Engine output is controlled according to a vehicle speed while reversing the vehicle.
Vehicle behavior in
control Power performance may be lowered while reversing the vehicle.
Normal return condi-
tion Torque returns to normal by positioning the sele
ctor lever in a range other than “R” position.
Control When the CVT fluid temperature is high, the gear shift permission maximum revolution and the maximum
torque are reduced than usual to prevent increase of the oil temperature.
Vehicle behavior in
control Power performance may be lowered, compared to normal control.
Normal return condi-
tion The control returns to the normal control when CVT fluid temperature is lowered.
ControlThe reverse brake is controlled to avoid becoming engaged when the selector lever is set in “R” position while
driving in forward direction at more than the specified speed.
Vehicle behavior in
control If the selector lever is put at “R” position when driving with the forward gear, the gear becomes neutral, not
reverse.
Normal return condi-
tion The control returns to normal control when the vehicle is driven at low speeds. (The reverse brake becomes
engaged.)
Priority DTC (Diagnostic Trouble Code) Reference
1 P0863 CONTROL UNIT (CAN)
TM-143, "DTC Logic"
U0073 COMM BUS A OFF TM-88, "DTC Logic"
U0100 LOST COMM (ECM A)TM-89, "DTC Logic"
U0140 LOST COMM (BCM)TM-90, "DTC Logic"
U0141 LOST COMM (BCM A)TM-91, "DTC Logic"
U0155 LOST COMM (IPC)TM-92, "DTC Logic"
U0300 CAN COMM DATA TM-93, "DTC Logic"
U1000 CAN COMM CIRCTM-94, "DTC Logic"
U1117 LOST COMM (ABS)TM-95, "DTC Logic"
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
CVT FLUIDTM-83
< BASIC INSPECTION > [CVT: RE0F10D]
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CVT FLUID
ReplacementINFOID:0000000009464014
CAUTION:
• Always use shop paper. Never use shop cloth.
• Replace a drain plug gasket with new ones at the fi nal stage of the operation when installing.
• Use caution when looking into the drain hole as there is a risk of dripping fluid entering the eye.
• After replacement, always pe rform CVT fluid leakage check.
1. Select “Data Monitor” in “TRANSMISSION” using CONSULT.
2. Select “FLUID TEMP” and confirm t hat the CVT fluid temperature is 40°C (104 °F) or less.
3. Check that the selector lever is in the “P ” position, then completely engage the parking brake.
4. Lift up the vehicle.
5. Remove the drain plug and drain the CVT fluid from the oil pan. Refer to TM-186, "Exploded View"
.
6. Install the drain plug to oil pan. CAUTION:
Drain plug gasket use the old one.
7. Remove the overflow plug from converter housing.
8. Install the charging pipe set (KV311039S0) (A) into the overflow plug hole.
CAUTION:
Tighten the charging pipe by hand.
9. Install the ATF changer hose (B) to the charging pipe. CAUTION:
Press the ATF changer hose all the way onto the charging
pipe until it stops.
10. Fill approximately 3 liter (2-5 /8 lmp qt) of the CVT fluid.
11. Remove the ATF changer hose and charging pipe, then install the overflow plug.
NOTE:
Perform this work quickly because CVT fluid leaks.
12. Lift down the vehicle.
13. Start the engine.
14. While depressing the brake pedal, shift the selector leve r to the entire position from “P” to “DS”, and shift it
to the “P” position.
NOTE:
Hold the lever at each position for 5 seconds.
15. Check that the CONSULT “Data Monitor” in “FLUID TEMP” is 35°C (95 °F) to 45 °C (113 °F).
16. Stop the engine.
17. Lift up the vehicle.
18. Remove the drain plug, and then drain CVT fluid from oil pan. CVT fluid : Refer to
TM-212, "General Specification"
.
Fluid capacity : Refer to TM-212, "General Specification"
.
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TM-84
< BASIC INSPECTION >[CVT: RE0F10D]
CVT FLUID
19. Repeat steps 8 to 18 (one time).
20. Tighten the drain plug to the specified torque. Refer to TM-186, "Exploded View"
.
21. Remove the overflow plug.
22. Install the charging pipe set (KV311039S0) into the overflow plug hole. CAUTION:
Tighten the charging pipe by hand.
23. Install the ATF changer hose to the charging pipe. CAUTION:
Press the ATF changer hose all the way onto the charging pipe until it stops.
24. Fill approximately 3 liter (2-5/8 lmp qt) of the CVT fluid.
25. Remove the ATF changer hose and charging pipe, then install the overflow plug. NOTE:
Perform this work quickly because CVT fluid leaks.
26. Lift down the vehicle.
27. Start the engine.
28. While depressing the brake pedal, shift the selector lever to the entire position from “P” to “DS”, and shift it to the “P” position.
NOTE:
Hold the lever at each position for 5 seconds.
29. Check that the CONSULT “Data Monitor” in “FLUID TEMP” is 35 °C (95 °F) to 45 °C (113 °F).
30. Lift up the vehicle.
31. Remove the overflow plug and confirm that the CV T fluid is drained from the overflow plug hole.
CAUTION:
Perform this work with the vehicle idling.
NOTE:
If the CVT fluid is not drained, refer to “Adjustment” and refill with the CVT fluid.
32. When the flow of CVT fluid slows to a drip, tighten the overflow plug to the specified torque. Refer to TM-
186, "Exploded View".
CAUTION:
Never reuse O-ring.
33. Lift down the vehicle.
34. Select “Data Monitor” in “T RANSMISSION” using CONSULT.
35. Select “CONFORM CVTF DETERIORTN”.
36. Select “Erase”.
37. Stop the engine.
AdjustmentINFOID:0000000009464015
CAUTION:
• During adjustment of the CVT fluid level, check CO NSULT so that the oil temperature may be main-
tained from 35 to 45 °C (95 to 113 °F).
• During adjustment of the CVT fluid level, check that the engine speed is maintaining 500 rpm.
• Use caution when looking into the drain hole as th ere is a risk of dripping fluid entering the eye.
1. Check that the selector lever is in the “P ” position, then completely engage the parking brake.
2. Start the engine.
3. Adjust the CVT fluid temperature to be approximately 40 °C (104 °F).
NOTE:
The CVT fluid is largely affected by temperature. Therefore be sure to use CONSULT and check the
“FLUID TEMP” under “TRANSMISSION” in “Data Monitor” while adjusting.
4. While depressing the brake pedal, shift the selector lever to the entire position from “P” to “DS”, and shift it to the “P” position.
NOTE: CVT fluid : Refer to
TM-212, "General Specification"
.
Fluid capacity : Refer to TM-212, "General Specification"
.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
TM-86
< BASIC INSPECTION >[CVT: RE0F10D]
STALL TEST
STALL TEST
Work ProcedureINFOID:0000000009464016
INSPECTION
1. Check the engine oil level. Replenish if necessary. Refer to
LU-9, "Inspection".
2. Check for leak of the CVT fluid. Refer to TM-178, "Inspection"
.
3. Drive for about 10 minutes to warm up the vehicle so that the CVT fluid temperature is 50 to 80°C (122 to
176 °F).
4. Be sure to apply the parking brake and block the tires.
5. Start the engine, depress the brake pedal and put the selector lever to the D position.
6. While depressing the brake pedal, depress the accelerator pedal gradually.
7. Read the stall speed quickly. Then, release your foot from the accelerator pedal quickly. CAUTION:
Do not depress the accelerator pedal for 5 seconds or more during the test.
8. Place the selector lever in the N position.
9. Cool the CVT fluid. CAUTION:
Run the engine with the idle speed for at least 1 minute.
10. Put the selector lever to the R position and perform Step 6 to Step 9 again.
NARROWING-DOWN MALFUNCTIONING PARTS
O: Within the stall speed standard value.
H: Stall speed is higher than the standard value.
L: Stall speed is lower than the standard value.
Stall speed : Refer to TM-212, "Stall Speed".
Selector lever position
Possible cause
DR
Stal l s pe ed HO•Forward clutch
O H • Reverse brake
LL •Engine
• Torque converter one way clutch
HH • Line pressure is low.
• Primary pulley
• Secondary pulley
• Steel belt
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TM-178
< PERIODIC MAINTENANCE >[CVT: RE0F10D]
CVT FLUID
PERIODIC MAINTENANCE
CVT FLUID
InspectionINFOID:0000000009464119
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
CVT fluid level. Refer to TM-84, "Adjustment"
.
SMA146B
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CONTROL VALVETM-191
< REMOVAL AND INSTALLATION > [CVT: RE0F10D]
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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). Refer to XX-XX, "*****"
.
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 procedure. 1. Install the oil pan gasket to the oil pan. CAUTION:
• Completely wipe out an y moisture, oil, and old gasket fr om 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 XX-XX, "*****"
.
20. Fill with CVT fluid to transaxle assembly. Refer to XX-XX, "*****"
.
InspectionINFOID:0000000009464132
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 ch ips 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-178, "Inspection".
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: Front
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TM-198
< REMOVAL AND INSTALLATION >[CVT: RE0F10D]
DIFFERENTIAL SIDE OIL SEAL
Install each differential side oil seal evenly using Tool so that differ-
ential side oil seal protrudes by the dimension (C) and (D) respect-
fully.
NOTE:
The reference is the installation direction of the differential side oil seal.
Drift to be used:
Inspection and AdjustmentINFOID:0000000009464144
INSPECTION AFTER INSTALLATION
Check for CVT fluid leakage. Refer to TM-178, "Inspection".
ADJUSTMENT AFTER INSTALLATION
Adjust the CVT fluid level. Refer to TM-84, "Adjustment".
(A) : Differential side oil seal (LH)
(B) : Differential side oil seal (RH)
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Dimension (C) :Height difference from case end surface is within 1.8 ± 0.5 mm (0.071 ±
0.020 in).
Dimension (D) :Height difference from case end surface is within 2.2 ± 0.5 mm (0.087 ±
0.020 in).
Location Commercial Service Tools
Transaxle case side Commercial service tool with outer dia. 56 mm (2.20 in) and in-
ner dia. 50 mm (1.97 in)
Converter housing side
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
CVT OIL WARMER SYSTEMTM-201
< REMOVAL AND INSTALLATION > [CVT: RE0F10D]
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*: 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:0000000009464147
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 HO SE : Exploded ViewINFOID:0000000009464148
COMPONENT PARTS LOCATION
United States and Canada
CVT water hose C Heater thermostat side N/A A
Water outlet side Facing upward C
CVT water hose Hose
end Paint mark
Position of hose clamp
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(D): Vehicle front
(E) : Vehicle upper
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