NISSAN LATIO 2008 Service Owner's Manual
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PRECAUTIONS
AT-9
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• 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 con-
verter and ATF cooling system.
Always follow the procedures under “Changing A/T Fluid” in the AT section when changing A/T fluid. Refer to
MA-22, "
Changing A/T Fluid", MA-22, "Checking A/T Fluid".
Service Notice or PrecautionINFOID:0000000001703155
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
.
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 lin-
ing 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.
OBD-II SELF-DIAGNOSIS
• A/T self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through
the blinking pattern of the OD OFF indicator lamp or the malfunction indicator lamp (MIL). Refer to the table
on AT-78, "
Diagnosis Procedure without CONSULT-III" 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 “HOW TO ERASE DTC” on AT-36, "
OBD-II Diagnostic Trouble Code
(DTC)" to complete the repair and avoid unnecessary blinking of the MIL.
• The following self-diagnostic items can be detected using ECM self-diagnostic results mode* only when the
OD OFF indicator lamp does not indicate any malfunctions.
-PNP switch
- A/T 1st, 2nd, 3rd, or 4th gear function
*: For details of OBD-II, refer to AT- 3 6
.
•Certain systems and components, especially those related to OBD, may use a new style slide-lock-
ing type harness connector.
For description and how to disconnect, refer to PG-65
.
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AT-10
< SERVICE INFORMATION >
PREPARATION
PREPARATION
Special Service ToolINFOID:0000000001703156
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool nameDescription
ST2505S001
(J-34301)
Oil pressure gauge set
1. ST25051001
(J-34301)
Oil pressure gauge
2. ST25052000
(J-34301)
Hose
3. ST25053000
(J-25695-3)
Joint pipe
4. ST25054000
(J-25695-4)
Adapter
5. ST25055000
(J-25695-5)
AdapterMeasuring line pressure
ST35325000
( — )
DriftInstalling LH differential side oil seal
(Use with KV31103000)
a: 215 mm (8.46 in)
b: 25 mm (0.98 in) dia.
c: M12 X 1.5P
KV31103000
(J-38982)
DriftInstalling LH differential side oil seal
(Use with ST35325000)
a: 59 mm (2.32 in) dia.
b: 49 mm (1.93 in) dia.
ST37830000
( — )
DriftInstalling idler gear bearing outer race
a: 61.9 mm (2.437 in) dia.
b: 39 mm (1.54 in) dia.
ST27180001
(J-25726-A)
PullerRemoving idler gear
a: 100 mm (3.94 in)
b: 110 mm (4.33 in)
c: M8 X 1.25P
NT097
SCIA7102E
SCIA7103E
NT084
NT424
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PREPARATION
AT-11
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KV31103200
(J-39186)
Clutch spring compressor• Removing 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
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AT-12
< SERVICE INFORMATION >
PREPARATION
ST37830000
( — )
DriftInstalling idler gear bearing outer race
a: 61.9 mm (2.437 in) dia.
b: 39 mm (1.54 in) dia.
ST35271000
(J-26091)
DriftInstalling idler gear
a: 72 mm (2.83 in) dia.
b: 63 mm (2.48 in) dia.
ST3127S000
(J-25765-A)
Preload gauge
1. GG9103000
(J-25765-A)
Torque wrench
2. HT62940000
( — )
Socket adapter
3. HT62900000
( — )
Socket adapter• Measuring turning torque of reduction pinion gear
• Measuring turning torque of final drive assembly
KV38105710
(J-39026)
Preload adapter• Selecting differential side bearing adjusting shim
• Measuring turning torque of final drive assembly
ST35321000
( — )
DriftInstalling output shaft bearing
a: 49 mm (1.93 in) dia.
b: 41 mm (1.61 in) dia. Tool number
(Kent-Moore No.)
Tool nameDescription
NT084
NT115
NT124
NT087
NT073
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PREPARATION
AT-13
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Commercial Service ToolINFOID:0000000001703157
ST30633000
( — )
DriftInstalling differential side bearing outer races
a: 67 mm (2.48 in) dia.
b: 49 mm (1.93 in) dia.
ST3306S001
(J-22888-D)
Differential side bearing pull-
er set
1. ST33051001
Puller
2. ST33061000
AdapterRemoving differential side bearing inner race
a: 38 mm (1.50 in) dia.
b: 28.5 mm (1.122 in) dia.
c: 130 mm (5.12 in)
d: 135 mm (5.31 in)
e: 100 mm (3.94 in) Tool number
(Kent-Moore No.)
Tool nameDescription
NT073
AMT153
Tool name Description
Power tool Loosening bolts and nuts
DriftInstalling manual shaft oil seal
a: 22 mm (0.87 in) dia.
DriftInstalling RH differential side oil seal
a: 54 mm (2.13 in) dia.
b: 47 mm (1.85 in) dia.
Puller• Removing idler gear bearing inner race
• Removing and installing band servo piston snap
ring
PBIC0190E
SCIA7105E
NT115
NT077
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AT-14
< SERVICE INFORMATION >
PREPARATION
DriftRemoving idler gear bearing inner race
a: 34 mm (1.34 in) dia.
DriftInstalling differential side bearings
a: 45 mm (1.77 in) dia.
b: 41 mm (1.61 in) dia.
Pin punch Aligning groove of manual shaft and hole of transaxle
case
a: 2 mm (0.08 in) dia.
DriftRemoving idler gear bearing inner race
a: 34 mm (1.34 in) dia.
DriftInstalling radial needle bearing on bearing retainer
a: 36 mm (1.42 in) dia. Tool name Description
SCIA7105E
NT115
NT410
NT109
NT083
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A/T FLUID
AT-15
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A/T FLUID
Checking A/T FluidINFOID:0000000001703158
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-48, "
Inspections Before Trouble
Diagnosis". If the A/T fluid contains frictional material (clutches, bands, etc.), or if the A/T is repaired, over-
hauled, or replaced, inspect and clean the A/T fluid cooler mounted in the radiator. Refer to AT-16, "
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.
Changing A/T FluidINFOID:0000000001703159
1. Warm up A/T fluid.
2. Stop engine.
3. Drain A/T fluid by removing the drain plug. Reinstall the drain plug to the specified torque.
CAUTION:
Do not reuse drain plug gasket.
4. Refill the transaxle with new specified A/T fluid through the A/T fluid charging pipe. Always refill the tran-
saxle with the same volume of A/T fluid that was drained out.
SCIA3451E
SMA051D
Drain plug: Refer to AT-230, "Component".
Page 28 of 2771
AT-16
< SERVICE INFORMATION >
A/T FLUID
5. Run engine at idle speed for 5 minutes.
6. Check A/T fluid level and condition. Refer to MA-22, "
Checking A/T Fluid".
A/T Fluid Cooler CleaningINFOID:0000000001703160
Whenever the A/T is repaired, overhauled, or replaced, the A/T fluid cooler mounted in the radiator must be
inspected and cleaned.
Metal debris and friction material, if present, can become trapped in the A/T fluid cooler. This debris can con-
taminate the newly serviced A/T or, in severe cases, can block or restrict the flow of A/T fluid. In either case,
malfunction of the newly serviced A/T may result.
Debris, if present, may build up as A/T fluid enters the cooler inlet. It will be necessary to back flush the cooler
through the cooler outlet in order to flush out any built up debris.
A/T FLUID COOLER CLEANING PROCEDURE
1. Identify the A/T inlet and outlet fluid cooler hoses.
2. Position an oil pan under the A/T inlet and outlet fluid cooler
hoses.
3. Disconnect the A/T fluid cooler inlet and outlet rubber hoses
from the steel cooler tubes or bypass valve.
NOTE:
Replace the cooler hoses if rubber material from the hose
remains on the tube fitting.
4. Allow any A/T 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 A/T 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 end of cooler outlet
hose.
9. Blow compressed air regulated to 5 - 9 kg/cm
2 (70 - 130 psi) through the cooler outlet hose for 10 seconds
to force out any remaining A/T fluid.
10. Repeat steps 5 through 9 three additional times.
11. Position an oil pan under the banjo bolts that connect the A/T fluid cooler steel lines to the A/T.
12. Remove the banjo bolts.Fluid grade and capacity: Refer to MA-10
.
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A/T FLUID
AT-17
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13. Flush each steel line from the cooler side back toward the A/T by spraying Transmission Cooler Cleaner
in a continuous stream for 5 seconds.
14. Blow compressed air regulated to 5 - 9 kg/cm
2 (70 - 130 psi) through each steel line from the cooler side
back toward the A/T for 10 seconds to force out any remaining A/T 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 "A/T FLUID COOLER DIAGNOSIS PROCEDURE".
A/T 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 A/T inlet and outlet cooler hoses.
2. Clean the exterior and tip of the cooler inlet hose.
3. 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.
4. 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 A/T fluid flows out of the cooler inlet hose for 5 seconds.
5. Tie a common white, basket-type coffee filter to the end of the
cooler inlet hose.
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 "A/T FLUID COOLER INSPECTION PROCEDURE".
A/T FLUID COOLER INSPECTION PROCEDURE
SCIA5629E
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AT-18
< SERVICE INFORMATION >
A/T FLUID
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
.
A/T FLUID COOLER FINAL INSPECTION
After performing all procedures, ensure that all remaining oil is cleaned from all components.
SCIA2967E
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