NISSAN LATIO 2007 Service Repair Manual

AT-298
REPAIR FOR COMPONENT PARTS
Revision: June 20062007 Versa

For A/T fluid temperature sensor, refer to AT-175, "Component
Inspection" .
Line Pressure Relief Valve Springs and Torque Converter Pressure Holding Spring

Check each spring for damage or deformation. Also measure
free length and outer diameter. Refer to AT-380, "
Control
Va l v e s" .

Replace springs if deformed or fatigued.
ASSEMBLY
1. Install control valve upper, inter and lower body.
a. Place oil circuit of control valve upper body face up. Install steel
balls in their proper positions.
b. Install reamer bolts (F) from bottom of control valve upper body
(1). Using reamer bolts (F) as guides, install separating plate (2)
as a set.
SCIA7533E
SAT1 3 8D
SAT8 7 1J
SCIA7010E

REPAIR FOR COMPONENT PARTS
AT-299
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: June 20062007 Versa
c. Install pilot filter (1) on control valve upper body (2).
d. Place control valve inter body as shown in figure (side of control
valve lower body face up). Install steel balls in their proper posi-
tions.
e. Install control valve inter body (1) on control valve upper body
(2) using reamer bolts (F) as guides.
CAUTION:
Be careful not to dislocate or drop steel balls.
f. Install check balls (1), line pressure relief valve springs (2) and
torque converter pressure holding spring (3) in their proper posi-
tions in control valve lower body (4).
g. Install bolts (E) from bottom of control valve lower body (1).
Using bolts (E) as guides, install separating plate (2) as a set.
h. Install support plates (3) on control valve lower body (1).
SCIA7 011 E
SAT8 7 0J
SCIA7012E
SCIA6491J
SCIA7013E

AT-300
REPAIR FOR COMPONENT PARTS
Revision: June 20062007 Versa
i. Install control valve lower body (1) on control valve inter body (2)
using reamer bolts (F) as guides, and tighten reamer bolts (F)
slightly.
2. Install O-rings on solenoid valves and terminal body.
3. Install and tighten bolts.
(1): Control valve upper body
(2): Control valve inter body
(3): Control valve lower body
(4): Support plate
Bolt length, number and location:
*: Reamer bolt and nut.
SCIA7014E
SCIA7180E
SCIA7058E
Bolt symbol A B C D E F*G
Bolt length “ ” [mm (in)]
13.5
(0.531)58.0
(2.283) 40.0
(1.575)66.0
(2.598)33.0
(1.299)78.0
(3.071)18.0
(0.709)
Number of bolts 63611221
Tightening torque
[N·m (kg-m, in-lb)]7.84 (0.80, 69)3.92
(0.40, 35)7.84 (0.80, 69)

REPAIR FOR COMPONENT PARTS
AT-301
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: June 20062007 Versa
a. Install and tighten bolts (B) to the specified torque.
b. Install solenoid valve assembly (1) on control valve assembly.
c. Tighten bolts (A), (C) and (G) to the specified torque.
d. Remove reamer bolts (F), and then set oil strainer (1) on control
valve assembly
e. Install and tighten bolts (A), (D), reamer bolts (F) and nuts to the
specified torque.
f. Tighten bolts (E) to the specified torque.:7.84 N·m (0.80 kg-m, 69 in-lb)
ATL0032D
:7.84 N·m (0.80 kg-m, 69 in-lb)
SCIA7008E
:7.84 N·m (0.80 kg-m, 69 in-lb)
SCIA7131E
:3.92 N·m (0.40 kg-m, 35 in-lb)
ATL0035D

AT-302
REPAIR FOR COMPONENT PARTS
Revision: June 20062007 Versa
Control Valve Upper BodyUCS005W6
COMPONENTS
SCIA2960J

REPAIR FOR COMPONENT PARTS
AT-303
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: June 20062007 Versa
DISASSEMBLY
1. Remove valves at retainer plates.
CAUTION:
Do not use a magnetic pick-up tool.
a. Use a flat-bladed screwdriver A to remove retainer plates (1).
b. Remove retainer plates (1) while holding spring, plugs (2) or
sleeves using a flat-bladed screwdriver A.
CAUTION:
Remove plugs (2) slowly to prevent internal parts from
jumping out.
1. Retainer plate 2. Plug 3. Cooler check valve spring
4. Cooler check valve 5. Control valve upper body 6. Pilot valve
7. Pilot valve spring 8. Retainer plate 9. 1-2 accumulator retainer plate
10. 1-2 accumulator piston spring 11. 1-2 accumulator piston 12. Plug
13. Retainer plate 14. Retainer plate 15. Plug
16. 1st reducing valve 17. 1st reducing valve spring 18. Retainer plate
19. 3-2 timing valve spring 20. 3-2 timing valve 21. Retainer plate
22. Plug 23. Overrun clutch reducing valve 24. Overrun clutch reducing valve spring
25. Retainer plate 26. Torque converter relief valve spring 27. Torque converter relief valve
28. Retainer plate 29. Sleeve 30. Plug
31. Torque converter clutch control valve
spring32. Torque converter clutch control
valve33. Retainer plate
34. Plug 35. 1-2 accumulator valve spring 36. 1-2 accumulator valve
SCIA4979E
SCIA7136E
SCIA7137E

AT-304
REPAIR FOR COMPONENT PARTS
Revision: June 20062007 Versa
c. Place mating surface of valve body face down, and remove
internal parts.
CAUTION:

If a valve is hard to remove, place valve body face down
and lightly tap it with a soft hammer.

Be careful not to drop or damage valves and sleeves.
INSPECTION
Valve Springs

Check each valve spring for damage or deformation. Also mea-
sure free length and outer diameter. Refer to AT - 3 8 0 , "
Control
Va l v e s" .

Replace valve springs if deformed or fatigued.
Control Valves
Check sliding surfaces of valves, sleeves and plugs. Replace if necessary.
ASSEMBLY
CAUTION:

Apply ATF to all components before installation.

Lay control valve body down when installing valves. Do not
stand control valve body upright.
Lubricate control valve body and all valves with ATF. Install control
valves by sliding them carefully into their bores.
CAUTION:

Install each control valve one by one.

Install control valves after checking, because some of them
are similar.

Be careful not to scratch or damage valve body.
SAT1 3 7D
SAT1 3 8D
SAT1 3 9D
SAT1 4 0DA

REPAIR FOR COMPONENT PARTS
AT-305
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: June 20062007 Versa

Wrap a small flat-bladed screwdriver A with vinyl tape and use it
to insert valves into their proper positions.

Install retainer plates (1).
–While pushing plug or return spring, install retainer plate (1)
using a flat-bladed screwdriver A.
1-2 Accumulator Valve

Install 1-2 accumulator valve (1), 1-2 accumulator valve spring
and plug. Align 1-2 accumulator retainer plate (2) from opposite
side of control valve body.

Install 1-2 accumulator valve piston spring (3), 1-2 accumulator
piston (4), plug (5) and retainer plate (6).
Retainer Plate (Control Valve Upper Body)
Install proper retainer plates. Refer to AT-302, "COMPONENTS" .
Unit: mm (in)
SCIA7138E
SCIA7139E
SCIA7182E
Loca
tionRetainer plate designation Width “A” Length “B”
L14 Pilot valve
6.0 (0.236)21.5 (0.846)
L151-2 accumulator valve
40.5 (1.594)
1-2 accumulator piston
L16 1st reducing valve
21.5 (0.846)
L17 3-2 timing valve
L18 Overrun clutch reducing valve 24.0 (0.945)
L19 Torque converter relief valve 21.5 (0.846)
L20 Torque converter clutch control valve 28.0 (1.102)
L21 Cooler check valve 24.0 (0.945)
SAT0 8 6F

AT-306
REPAIR FOR COMPONENT PARTS
Revision: June 20062007 Versa
Control Valve Lower BodyUCS005W7
COMPONENTS
SCIA2959J

REPAIR FOR COMPONENT PARTS
AT-307
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: June 20062007 Versa
DISASSEMBLY
Remove valves at retainer plate.
For removal procedures, refer to AT-303, "
DISASSEMBLY" .
INSPECTION
Valve Springs

Check each valve spring for damage or deformation. Also mea-
sure free length and outer diameter. Refer to AT-380, "
Control
Va l v e s" .

Replace valve springs if deformed or fatigued.
Control Valves
Check sliding surfaces of control valves, sleeves and plugs for damage. Replace if necessary.
ASSEMBLY
CAUTION:

Apply ATF to all components before installation.

Lay control valve body down when installing valves. Do not
stand control valve body upright.
1. Retainer plate 2. Pressure modifier piston spring 3. Pressure modifier piston
4. Parallel pin 5. Sleeve 6. Pressure modifier valve spring
7. Pressure modifier valve 8. Control valve lower body 9. Manual valve
10. Pressure regulator valve 11. Pressure regulator valve spring 12. Spring seat
13. Plug 14. Retainer plate 15. Sleeve
16. Overrun clutch control valve spring 17. Overrun clutch control valve 18. Plug
19. Retainer plate 20. Accumulator control valve spring 21. Accumulator control valve
22. Plug 23. Retainer plate 24. Retainer plate
25. Shift valve A spring 26. Shift valve A 27. Retainer plate
28. Plug 29. Shuttle plug 30. Shuttle valve spring
31. Shuttle valve 32. Shift valve B spring 33. Shift valve B
34. Plug 35. Retainer plate
SCIA4978E
SAT1 3 8D
SAT1 3 9D