
TRANSAXLE ASSEMBLYAT-235
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• When replacing an engine or transmission you must make sure any dowels are installed correctly during re-assembly.
• Improper alignment caused by missing dowels may cause vibration, oil leaks or breakage of drive
train components.
• Do not reuse O-rings and copper washers. Refer to "COMPONENTS".
• When turning crankshaft, turn it clockwise as viewed from the front of the engine.
• When tightening the bolts for th e torque converter while securing the crankshaft pulley bolt, be sure
to confirm the tightening torque of the crankshaft pulley bolt. Refer to EM-156
.
• After converter is installed to drive plate, ro tate crankshaft several turns to check that transaxle
rotates freely without binding.
• When installing the torque converter to the transaxle measure dis- tance A.
• Check the fitting of the dowel pins when installing the transaxle assembly and the engine assembly.
: Dowel pin
• When installing the transaxle to the engine, align the matching mark on the drive plate with the matching mark on the torque converter.
• When securing the transaxle to the engine, attach the bolts in accordance with the following standard.
HR16DE engine models
(A): A/T to engine
(B): Engine to A/T
• When installing the transaxle to the engine, align the matching mark on the drive plate with the matching mark on the torque converter.
• When securing the transaxle to the engine, attach the bolts in accordance with the following standard. Dimension A: 14.4 mm (0.567 in) or more
SAT430D
SCIA7698E
Bolt No.
1 2 34
Number of bolts 2 2 13
Bolt length (L) [mm (in)] 40 (1.5 7) 44 (1.73) 69 (2.72) 49 (1.93)
Tightening torque
[N·m (kg-m, ft-lb)] 48 (4.9, 35)
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OVERHAULAT-243
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MR18DE ENGINE MODELS
16. Servo release accumulator piston 17. Return spring
18. Control valve assembly
19. Oil pan gasket 20. Oil pan 21. Drain plug gasket
22. Drain plug 23. Magnet 24. Oil pan bolt
25. Snap ring 26. O-ring 27. O-ring
28. N-D accumulator piston 29. Return spring 30. O-ring
31. Lip seal 32. Input speed sensor 33. O-ring
34. Retaining pin 35. Detent spring 36. Retaining pin
37. Manual shaft 38. Manual shaft oil seal 39. Manual plate
40. Parking rod plate 41. Parking rod 42. OD servo piston retainer
43. Snap ring 44. O-ring 45. OD servo piston
46. D-ring 47. Servo release accumulator piston 48. O-ring
49. E-ring 50. Spring retainer 51. OD servo return spring
52. D-ring 53. Band servo piston 54. Band servo thrust washer
55. Band servo piston stem 56. 2nd servo return spring 57. Transmission range switch
58. Parking shaft 59. Return spring 60. Output gear adjusting spac-
er
61. Output gear bearing 62. Output gear 63. Side cover gasket
64. Side cover 65. Side cover bolt 66. Lock nut
67. Idler gear 68. Idler gear bearing 69. Reduction pinion gear ad-
justing shim
70. Parking actuator support 71. Parking pawl 72. LH differential side oil seal
73. Output speed sensor
: Apply Genuine Anaerobic Liquid Gasket or equivalent.
Revision: January 20102010 Versa

AT-250
< SERVICE INFORMATION >
OVERHAUL
Oil Channel
INFOID:0000000005397432
HR16DE ENGINE MODELS
19. Oil pan 20. Drain plug gasket21. Drain plug
22. Magnet 23. Oil pan bolt24. Snap ring
25. O-ring 26. O-ring27. N-D accumulator piston
28. Return spring 29. O-ring 30. Lip seal
31. Input speed sensor 32. O-ring 33. Retaining pin
34. Detent spring 35. Retaining pin 36. Manual shaft
37. Manual shaft oil seal 38. Manual plate 39. Parking rod plate
40. Parking rod 41. OD servo piston retainer42. Snap ring
43. O-ring 44. OD servo piston45. D-ring
46. Servo piston retainer 47. O-ring48. E-ring
49. Spring retainer 50. OD servo return spring 51. D-ring
52. Band servo piston 53. Band servo thrust washer 54. Band servo piston stem
55. 2nd servo return spring 56. Transmission range switch57. Parking shaft
58. Return spring 59. Thrust needle bearing60. Seal ring
61. Output shaft 62. Output shaft bearing63. Output shaft adjusting shim
64. Side cover 65. Side cover bolt 66. Lock nut
67. Idler gear 68. Idler gear bearing69. Reduction pinion gear adjusting
shim
70. Parking actuator support 71. Parking pawl 72. LH differential side oil seal
73. Output speed sensor
: Apply Genuine Anaerobic Liquid Gasket or equivalent.
Revision: January 20102010 Versa

DISASSEMBLYAT-259
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9. Set manual shaft (1) in “P” position.
10. Remove transmission range switch (2) from transaxle case. : Bolt
11. Remove oil pan bolts.
12. Remove oil pan and oil pan gasket.
13. Check foreign materials in oil pan to help determine causes of malfunction. If the ATF is very dark, smells burned, or contains
foreign particles, frictional material (clutches, band) may need
replacement. A tacky film that will not wipe clean indicates var-
nish build up. Varnish can cause valves, servo, and clutches to
stick and can inhibit pump pressure.
•If frictional material is detected, replace radiator after
repair of A/T. Refer to CO-40
.
14. Remove magnets from oil pan.
15. Remove control valve assembly according to the following procedures.
a. Remove snap ring (1) from terminal body (2). CAUTION:
Do not expand snap ring (1) excessively.
b. Push terminal body (2) into transaxle case.
c. Remove control valve assembly fitting bolts (A), (B) and ( C).
Bolt length, number and location:
d. Remove control valve assembly from transaxle case.
CAUTION:
Be careful not to drop manual valve.
SCIA5904J
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Bolt symbol ABC
Bolt length “ ” [mm (in)] 40.0 mm
(1.575 in) 33.0 mm
(1.299 in) 43.5 mm
(1.713 in)
Number of bolts 562
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![NISSAN TIIDA 2010 Service Repair Manual PRECAUTIONSCVT-11
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• When connecting or disconnecting pin connectors into or
from TCM, take care not to damage pin terminals (bend NISSAN TIIDA 2010 Service Repair Manual PRECAUTIONSCVT-11
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• When connecting or disconnecting pin connectors into or
from TCM, take care not to damage pin terminals (bend](/manual-img/5/57397/w960_57397-1043.png)
PRECAUTIONSCVT-11
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• When connecting or disconnecting pin connectors into or
from TCM, take care not to damage pin terminals (bend or
break).
When connecting pin connectors make sure that there are not
any bends or breaks on TCM pin terminal.
• Before replacing TCM, perform TCM input/output signal
inspection and make sure whether TCM functions properly or
not. CVT-46, "
TCM Terminal and Reference Value".
• After performing each TROUBL E DIAGNOSIS, perform “DTC
Confirmation Procedure”.
If the repair is completed the DTC should not be displayed in
the “DTC Confirmation Procedure”.
• Always use the specified br and of CVT fluid. Refer to MA-14, "
Flu-
ids and Lubricants".
• Use lint-free paper, not cloth rags, during work.
• After replacing the CVT fluid, dispose of the waste oil using the methods prescribed by law, ordinance, etc.
Service Notice or PrecautionINFOID:0000000005397764
CVT FLUID COOLER SERVICE
If CVT fluid contains friction material (clutches, brakes , etc.), or if an CVT is replaced, inspect and clean the
CVT fluid cooler mounted in the radiator or replace the radiator. Flush cooler lines using cleaning solvent and
compressed air after repair. For CVT fluid cooler cleaning procedure, refer to CVT-15, "
CVT Fluid Cooler
Cleaning". For radiator replacement, refer to CO-40.
OBD-II SELF-DIAGNOSIS
• CVT self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through
the blinking pattern of the malfunction indi cator lamp (MIL). Refer to the table on CVT-48, "
CONSULT-III
Function (TRANSMISSION)" for the indicator used to display each self-diagnostic result.
• The self-diagnostic results indicated by the MIL are automatically stored in both the ECM and TCM memo- ries.
Always perform the procedure on CVT-27, "
OBD-II Diagnostic Trouble Code (DTC)" to complete the
repair and avoid unnecessary blinking of the MIL.
For details of OBD-II, refer to EC-541, "
Introduction".
• Certain systems and components, especially those re lated to OBD, may use the new style slide-lock-
ing type harness connector. For description and how to disconnect, refer to PG-66
.
ATFTEMP COUNT Conversion Table INFOID:0000000005709762
SEF291H
MEF040DA
SEF217U
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![NISSAN TIIDA 2010 Service Repair Manual CVT FLUIDCVT-15
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FLUID CONDITION CHECK
Changing CVT FluidINFOID:0000000005397768
1. Warm up CVT fluid by driving the vehicle for 10 m NISSAN TIIDA 2010 Service Repair Manual CVT FLUIDCVT-15
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FLUID CONDITION CHECK
Changing CVT FluidINFOID:0000000005397768
1. Warm up CVT fluid by driving the vehicle for 10 m](/manual-img/5/57397/w960_57397-1047.png)
CVT FLUIDCVT-15
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FLUID CONDITION CHECK
Changing CVT FluidINFOID:0000000005397768
1. Warm up CVT fluid by driving the vehicle for 10 minutes.
• : Vehicle front
• Radiator (2)
• CVT fluid cooler hose [inlet side (3)]
• Transaxle assembly (4)
2. Drain CVT fluid from CVT fluid cooler hose [outlet side (1)] and refill with new specified NISSAN CVT fluid in the CVT fluid
charging pipe with the engine running at idle speed.
CAUTION:
Only use the specifi ed NISSAN CVT fluid.
3. Refill until new CVT fluid comes out from CVT fluid cooler hose [outlet side (1)]. NOTE:
About 30 to 50% extra fluid will be required for this procedure.
4. Check fluid level and condition. Refer to CVT-14, "
Checking CVT Fluid".
CAUTION:
Delete CVT fluid deterioration date with CONSULT-III after changing CVT fluid. Refer to CVT-48,
"CONSULT-III Function (TRANSMISSION)".
CVT Fluid Cooler CleaningINFOID:0000000005397769
Whenever a CVT is repaired, overhauled, or replaced, the CVT fluid cooler mounted in the radiator must be
inspected and cleaned.
Metal debris and friction material, if present, can be trapped or become deposit in the CVT fluid cooler. This
debris can contaminate the newly serviced CVT or, in severe cases, can block or restrict the flow of CVT fluid.
In either case, malfunction of the newly serviced CVT may occur.
Debris, if present, may deposit as CVT fluid enters the cool er inlet. It will be necessary to back flush the cooler
through the cooler outlet in order to flush out any built up debris.
CVT FLUID COOLER CLEANING PROCEDURE
1. Identify the CVT inlet and outlet fluid cooler hoses.
2. Position an oil pan under the inlet and outlet cooler hoses.
Fluid status Conceivable cause Required operation
Varnished (viscous
varnish state) Clutch, brake
scorchedReplace the CVT fluid and check the
CVT main unit and the vehicle for
malfunctions (wire harness, cooler
pipes, etc.)
Milky white or cloudy Water in the fluid Replace the CVT fluid and check for places where water is getting in.
Large amount of
metal powder mixed
in fluid Unusual wear of
sliding parts within
CVTReplace the CVT fluid and check for
improper operation of the CVT.
ATA0022D
Fluid capacity and grade: Refer to
MA-14, "Fluids
and Lubricants".SCIA6088E
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![NISSAN TIIDA 2010 Service Repair Manual CVT-16
< SERVICE INFORMATION >[RE0F08B]
CVT FLUID
3. Disconnect the fluid cooler inlet and outlet rubber hoses from the
steel cooler tubes.
NOTE:
Replace the cooler hoses if rubber material from the h NISSAN TIIDA 2010 Service Repair Manual CVT-16
< SERVICE INFORMATION >[RE0F08B]
CVT FLUID
3. Disconnect the fluid cooler inlet and outlet rubber hoses from the
steel cooler tubes.
NOTE:
Replace the cooler hoses if rubber material from the h](/manual-img/5/57397/w960_57397-1048.png)
CVT-16
< SERVICE INFORMATION >[RE0F08B]
CVT FLUID
3. Disconnect the fluid cooler inlet and outlet rubber hoses from the
steel cooler tubes.
NOTE:
Replace the cooler hoses if rubber material from the hose
remains on the tube fitting.
4. Allow any CVT fluid that remains in the cooler hoses to drain into the oil pan.
5. Insert the extension adapter hose of a can of Transmission
Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler out-
let hose.
CAUTION:
• Wear safety glasses and rubber gloves when spraying the Transmission Cooler Cleaner.
• Spray Transmission Cooler Cleaner only with adequate
ventilation.
• Avoid contact with eyes and skin.
• Do not breath vapors or spray mist.
6. Hold the hose and can as high as possible and spray Transmis- sion Cooler Cleaner in a continuous stream into the cooler outlet
hose until CVT fluid flows out of the cooler inlet hose for 5 seconds.
7. Insert the tip of an air gun into the end of the cooler outlet hose.
8. Wrap a shop rag around the air gun tip and of the cooler outlet hose.
9. Blow compressed air regulated to 5 to 9 kg/cm
2 (71 to 128 psi)
through the cooler outlet hose for 10 seconds to force out any
remaining CVT fluid.
10. Repeat steps 5 through 9 three additional times.
11. Position an oil pan under the banjo bolts that connect the CVT fluid cooler steel lines to the transaxle.
12. Remove the banjo bolts.
13. Flush each steel line from the cooler side back toward the tran- saxle by spraying Transmission Cooler Cleaner in a continuous stream for 5 seconds.
14. Blow compressed air regulated to 5 to 9 kg/cm
2 (71 to 128 psi) through each steel line from the cooler
side back toward the transaxle for 10 seconds to force out any remaining CVT fluid.
15. Ensure all debris is removed from the steel cooler lines.
16. Ensure all debris is removed from the banjo bolts and fittings.
17. Perform "CVT FLUID COOLER DIAGNOSIS PROCEDURE".
CVT FLUID COOLER DIAGNOSIS PROCEDURE
NOTE:
Insufficient cleaning of the cooler inlet hose exterior may lead to inaccurate debris identification.
1. Position an oil pan under the transaxle's inlet and outlet cooler hoses.
2. Clean the exterior and tip of the cooler inlet hose.
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![NISSAN TIIDA 2010 Service Repair Manual CVT SYSTEMCVT-23
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*1: Input by CAN communications.
*2: Output by CAN communications.
*3: If these input and output signals are differ NISSAN TIIDA 2010 Service Repair Manual CVT SYSTEMCVT-23
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*1: Input by CAN communications.
*2: Output by CAN communications.
*3: If these input and output signals are differ](/manual-img/5/57397/w960_57397-1055.png)
CVT SYSTEMCVT-23
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*1: Input by CAN communications.
*2: Output by CAN communications.
*3: If these input and output signals are different, the TCM triggers the fail-safe function.
Line Pressure and Secondary Pressure ControlINFOID:0000000005397776
• When an input torque signal equivalent to the engine drive force is sent from the ECM to the TCM, the TCM
controls the line pressure solenoid valve and secondary pressure solenoid valve.
• This line pressure solenoid controls the pressure regulat or valve as the signal pressure and adjusts the pres-
sure of the operating oil discharged from the oil pump to the line pressure most appropriate to the driving
state. Secondary pressure is cont rolled by decreasing line pressure.
NORMAL CONTROL
Optimize the line pressure and secondary pressure, dependi ng on driving conditions, on the basis of the throt-
tle position, the engine speed, the primary pulley (input ) revolution speed, the secondary pulley (output) revo-
lution speed, the brake signal, the transmission range switch signal, the lock-up signal, the voltage, the target
gear ratio, the fluid temperat ure, and the fluid pressure.
FEEDBACK CONTROL
When controlling the normal fluid pressure or the sele cted fluid pressure, the secondary pressure can be set
more accurately by using the fluid pressure sensor to detect the secondary pressure and controlling the feed-
back.
Shift ControlINFOID:0000000005397777
In order to select the gear ratio which can obtain the dr iving force in accordance with driver's intention and the
vehicle condition, TCM monitors the driving conditions, such as the vehicle speed and the throttle position and
selects the optimum gear ratio, and determines the gear change steps to the gear ratio. Then send the com-
Out-
putSte p mo tor
XX
TCC solenoid valve XXX
Lock-up select solenoid valve XXX
Line pressure solenoid valve XXX X
Secondary pressure solenoid valve XX X
O/D OFF indicator signal
(*2)XX
Control item
Fluid
pressure
control Select con-
trol Shift control
Lock-up
control CAN com-
munication
control Fail-safe
function
(*3)
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