PRECAUTIONS
AT-9
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: June 20062007 Versa
Gaskets, seals and O-rings should be replaced any time the A/T is disassembled.
It is very important to perform functional tests whenever they are indicated.
The valve body contains precision parts and requires extreme care when parts are removed and serviced.
Place disassembled valve body parts in order for easier and proper assembly. Care will also prevent
springs and small parts from becoming scattered or lost.
Properly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.
Before assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings
and seals, or hold bearings and washers in place during assembly. Do not use grease.
Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.
Clean or replace ATF cooler if excessive foreign material is found in oil pan or clogging strainer. Refer to
Refer to .
After overhaul, refill the A/T with new ATF.
When the A/T drain plug is removed, only some of the fluid is drained. Old A/T fluid will remain in torque
converter and ATF cooling system.
Always follow the procedures under “Changing A/T Fluid” in the AT section when changing A/T fluid. Refer
to AT - 1 7 , "
Changing A/T Fluid" , AT- 1 6 , "Checking A/T Fluid" .
Service Notice or PrecautionsUCS005M4
ATF COOLER SERVICE
If A/T fluid contains frictional material (clutches, bands, etc.), or if an A/T is repaired, overhauled, or replaced,
inspect and clean the A/T oil cooler mounted in the radiator or replace the radiator. Flush cooler lines using
cleaning solvent and compressed air after repair. Check Service Bulletins for latest A/T oil cooler cleaning pro-
cedure. For radiator replacement, refer to Refer to CO-11, "
RADIATOR" .
TORQUE CONVERTER SERVICE
The torque converter should be replaced under any of the following conditions:
External leaks in the hub weld area.
Converter hub is scored or damaged.
Converter pilot is broken, damaged or fits poorly into crankshaft.
Steel particles are found after flushing the cooler and cooler lines.
Pump is damaged or steel particles are found in the converter.
Vehicle has TCC shudder and/or no TCC apply. Replace only after all hydraulic and electrical diagnoses
have been made. (Converter clutch material may be glazed.)
Converter is contaminated with engine coolant containing antifreeze.
Internal malfunction of stator roller clutch.
Heavy clutch debris due to overheating (blue converter).
Steel particles or clutch lining material found in fluid filter or on magnet when no internal parts in unit are
worn or damaged — indicates that lining material came from converter.
The torque converter should not be replaced if:
The fluid has an odor, is discolored, and there is no evidence of metal or clutch facing particles.
The threads in one or more of the converter bolt holes are damaged.
A/T malfunction did not display evidence of damaged or worn internal parts, steel particles or clutch plate
lining material in unit and inside the fluid filter.
Vehicle has been exposed to high mileage (only). The exception may be where the torque converter
clutch dampener plate lining has seen excess wear by vehicles operated in heavy and/or constant traffic,
such as taxi, delivery or police use.
AT-12
PREPARATION
Revision: June 20062007 Versa
KV31103200
(J-39186)
Clutch spring compressorRemoving and installing clutch spring retainer as-
sembly
Removing and installing cancel cover
a: 179 mm (7.05 in)
b: 76 mm (2.99 in) dia.
c: 174 mm (6.85 in)
ST23540000
(J-25689-A)
Pin punch
Removing and installing retaining pin of manual
plate
Installing retaining pin of manual shaft
Installing retaining pin of parking rod plate
a: 2.3 mm (0.091 in) dia.
b: 4 mm (0.16 in) dia.
KV32101000
(J-25689-A)
Pin punchRemoving and installing lock pin of pinion mate shaft
a: 4 mm (0.16 in) dia.
ST33400001
(J-26082)
DriftInstalling oil pump housing oil seal
a: 60 mm (2.36 in) dia.
b: 47 mm (1.85 in) dia.
KV381054S0
(J-34286)
Puller
Removing radial needle bearing
Removing idler gear bearing outer race
Removing differential side bearing outer races
a: 250 mm (9.84 in)
b: 160 mm (6.30 in)
ST30031000
(J-22912-01)
PullerRemoving reduction pinion gear bearing inner race
a: 90 mm (3.54 in) dia.
b: 50 mm (1.97 in) dia.
ST35272000
(J-26092)
Drift
Installing reduction pinion gear bearing inner race
Installing idler gear bearing inner race
a: 72 mm (2.83 in) dia.
b: 40 mm (1.57 in) dia.
c: 35.5 mm (1.398 in) dia. Tool number
(Kent-Moore No.)
Tool nameDescription
SCIA7104E
NT442
NT410
NT086
NT414
NT411
NT107
AT-16
A/T FLUID
Revision: June 20062007 Versa
A/T FLUIDPFP:KLE40
Checking A/T FluidUCS005M 8
1. Warm up engine.
2. Check for A/T fluid leakage.
3. Before driving, A/T fluid level can be checked at A/T fluid tem-
peratures of 30 to 50°C (86 to 122°F) using the “COLD” range
on A/T fluid level gauge.
a. Park vehicle on level surface and set parking brake.
b. Start engine and move selector lever through each gear posi-
tion. Leave selector lever in “P” position.
c. Check A/T fluid level with engine idling.
d. Remove A/T fluid level gauge and wipe clean with lint-free cloth.
CAUTION:
When wiping the A/T fluid level gauge, always use lint-free
cloth.
e. Re-insert A/T fluid level gauge into A/T fluid charging pipe as far
as it will go.
CAUTION:
Firmly fix the A/T fluid level gauge to the A/T fluid charging
pipe using the stopper attached.
f. Remove A/T fluid level gauge and note reading. If reading is at
low side of range, add A/T fluid to the A/T fluid charging pipe.
CAUTION:
Do not overfill.
4. Drive vehicle for approximately 5 minutes.
5. Re-check A/T fluid level at A/T fluid temperatures of 50 to 80°C (122 to 176°F) using “HOT” range on A/T
fluid level gauge.
CAUTION:
When wiping the A/T fluid level gauge, always use lint-free cloth.
Firmly fix the A/T fluid level gauge to the A/T fluid charging pipe using the stopper attached.
6. Check A/T fluid condition and make any necessary repairs. Refer to AT- 5 3 , "
Fluid Condition Check" . If the
A/T fluid contains frictional material (clutches, bands, etc.), or if the A/T is repaired, overhauled, or
replaced, inspect and clean the A/T fluid cooler mounted in the radiator. Refer to AT- 1 7 , "
A/T Fluid Cooler
Cleaning" .
7. Install the removed A/T fluid level gauge into the A/T fluid charging pipe.
CAUTION:
Firmly fix the A/T fluid level gauge to the A/T fluid charging pipe using the stopper attached.
SCIA3451E
SM A05 1D
A/T FLUID
AT-19
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: June 20062007 Versa
6. Insert the tip of an air gun into the end of the cooler outlet hose.
7. Wrap a shop rag around the air gun tip and end of cooler outlet
hose.
8. Blow compressed air regulated to 5 - 9 kg/cm
2 (70 - 130 psi)
through the cooler outlet hose to force any remaining A/T fluid
into the coffee filter.
9. Remove the coffee filter from the end of the cooler inlet hose.
10. Perform AT-19, "
A/T FLUID COOLER INSPECTION PROCE-
DURE" .
A/T FLUID COOLER INSPECTION PROCEDURE
1. Inspect the coffee filter for debris.
a. If small metal debris less than 1mm (0.040 in) in size or metal
powder is found in the coffee filter, this is normal. If normal
debris is found, the A/T fluid cooler/radiator can be re-used and
the procedure is ended.
b. If one or more pieces of debris are found that are over 1mm
(0.040 in) in size and/or peeled clutch facing material is found in
the coffee filter, the A/T fluid cooler is not serviceable. The A/T
fluid cooler/radiator must be replaced and the inspection proce-
dure is ended. Refer to CO-11, "
RADIATOR" .
A/T FLUID COOLER FINAL INSPECTION
After performing all procedures, ensure that all remaining oil is cleaned from all components.
SCIA5632E
SCIA2967E
SCIA5659E
AT-20
A/T CONTROL SYSTEM
Revision: June 20062007 Versa
A/T CONTROL SYSTEMPFP:31036
Cross-Sectional View UCS005MA
1. Converter housing 2. Oil pump 3. Brake band
4. Reverse clutch 5. High clutch 6. Front planetary gear
7. Low one-way clutch 8. Rear planetary gear 9. Forward clutch
10. Overrun clutch 11. Low & reverse brake 12. Output gear
13. Band servo piston 14. Reverse clutch drum 15. Side cover
16. Idler gear 17. Forward one-way clutch 18. Transaxle case
19. Reduction pinion gear 20. Final gear 21. Differential case
22. Input shaft 23. Torque converter
SCIA7938E
A/T CONTROL SYSTEM
AT-21
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: June 20062007 Versa
Shift MechanismUCS005M B
CONSTRUCTION
FUNCTION OF CLUTCH AND BRAKE
1. Torque converter 2. Oil pump 3. Input shaft
4. Brake band 5. Reverse clutch 6. High clutch
7. Front sun gear 8. Front pinion gear 9. Front internal gear
10. Front planetary carrier 11. Rear sun gear 12. Rear pinion gear
13. Rear internal gear 14. Rear planetary carrier 15. Forward clutch
16. Forward one-way clutch 17. Overrun clutch 18. Low one-way clutch
19. Low & reverse brake 20. Parking pawl 21. Parking gear
22. Output shaft 23. Idle gear 24. Output gear
SAT9 9 8I
Clutch and brake components Abbr. Function
5Reverse clutch R/C To transmit input power to front sun gear 7 .
6High clutch H/C To transmit input power to front planetary carrier 10 .
15Forward clutch F/C To connect front planetary carrier 10 with forward one-way clutch 16 .
17Overrun clutch O/C To connect front planetary carrier 10 with rear internal gear 13 .
4Brake band B/B To lock front sun gear 7 .
16Forward one-way clutch F/O.CWhen forward clutch 15 is engaged, to stop rear internal gear 13 from rotating
in opposite direction against engine revolution.
18Low one-way clutch L/O.CTo stop front planetary carrier 10 from rotating in opposite direction against
engine revolution.
19Low & reverse brake L & R/B To lock front planetary carrier 10 .
AT-22
A/T CONTROL SYSTEM
Revision: June 20062007 Versa
CLUTCH AND BAND CHART
*1: Operates when OD OFF. (OD OFF indicator lamp is on.)
*2: Oil pressure is applied to both 2nd “apply” side and 3rd “release” side of band servo piston. However, brake band does not con-
tract because oil pressure area on the “release” side is greater than that on the “apply” side.
*3: Oil pressure is applied to 4th “apply” side on condition *2 above, and brake band contracts.
*4: A/T will not shift to 4th when OD OFF. (OD OFF indicator lamp is on.)
: Operates.
A: Operates when throttle opening is less than specification**, activating engine brake.
B: Operates during “progressive” acceleration.
C: Operates but does not affect power transmission.
D: Operates when throttle opening is less than specification**, but does not affect engine brake.
–**: Overrun clutch remains in engaged condition when throttle opening is less than 1/16. Shift posi-
tionR/C
5H/C
6F/C
15O/C
17Band servo
F/O.C
16L/O.C
18L&R/B
19Lock-
upRemarks
2nd
apply3rd
release4th
apply
PPA R K
POSITION
RREVERSE
POSITION
NNEUTRAL
POSITION
D*4 1st *1D B B
2nd *1A BAutomatic
shift
3rd *1A *2C C B
*11 ⇔ 2 ⇔ 3
⇔ 4
4th C *3C C
21stBB
Automatic
shift
1 ⇔ 2 ⇐ 3 2ndB
3rd *2C C B
11stBB
Locks (held
stationary)
in 1st speed
1 ⇐ 2 ⇐ 3 2ndB
3rd *2C C B
A/T CONTROL SYSTEM
AT-23
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: June 20062007 Versa
POWER TRANSMISSION
“N” and “P” Positions
“N” position
Power from the input shaft is not transmitted to the output shaft because the clutches do not operate.
“P” position
Similar to the “N” position, the clutches do not operate. The parking pawl engages with the parking gear to
mechanically hold the output shaft so that the power train is locked.
SAT9 9 1I