NISSAN LATIO 2011 Service Owner's Manual

AT-4
Transmission Range Switch ..................................225
Output Speed Sensor ............................................227
Input Speed Sensor ...............................................228
Differential Side Oil Seal ........................................229
AIR BREATHER HOSE ...................................232
Removal and Installation ..................................... ..232
TRANSAXLE ASSEMBLY ..............................233
Removal and Installation ..................................... ..233
OVERHAUL .................................................... .237
Component .......................................................... ..237
Oil Channel ............................................................250
Location of Adjusting Shims, Needle Bearings and
Thrust Washers .....................................................
253
Location of Snap Rings .........................................255
DISASSEMBLY .............................................. .257
Disassembly ........................................................ ..257
REPAIR FOR COMPONENT PARTS ..............275
Manual Shaft ....................................................... ..275
Oil Pump ................................................................278
Control Valve Assembly ........................................281
Control Valve Upper Body .....................................290
Control Valve Lower Body ................................... ..294
Reverse Clutch ......................................................297
High Clutch ............................................................302
Forward and Overrun Clutches .............................307
Low & Reverse Brake ............................................314
Rear Internal Gear and Forward Clutch Hub .........318
Output Shaft, Output Gear, Idler Gear, Reduction
Pinion Gear and Bearing Retainer .........................
322
Band Servo Piston Assembly ................................331
Final Drive .............................................................337
ASSEMBLY .....................................................344
Assembly (1) ........................................................ ..344
Adjustment (1) (For HR16DE Engine Models) ..... .345
Adjustment (1) (For MR18DE Engine Models) .....349
Assembly (2) .........................................................355
Adjustment (2) .......................................................360
Assembly (3) .........................................................363
SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................
373
General Specification ........................................... .373
Vehicle Speed at Which Gear Shifting Occurs .....373
Vehicle Speed at When Lock-up Occurs/Releases
.
373
Stall Speed ............................................................374
Line Pressure ........................................................374
Adjusting shims, Needle Bearings, Thrust Wash-
ers and Snap Rings ..............................................
374
Control Valves .......................................................375
Accumulator ..........................................................376
Clutches and Brakes .............................................376
Final Drive .............................................................378
Planetary Carrier ...................................................378
Oil Pump ...............................................................378
Input Shaft .............................................................378
Reduction Pinion Gear ..........................................378
Band Servo ...........................................................378
Output Shaft ..........................................................379
Bearing Retainer ...................................................379
Total End Play ...................................................... .379
Reverse Clutch End Play ......................................379
Removal and Installation .......................................379
Shift Solenoid Valves ........................................... .379
Solenoid Valves ....................................................380
A/T Fluid Temperature Sensor ..............................380
Output Speed Sensor ...........................................380
Dropping Resistor .................................................380
Input Speed Sensor ..............................................380
Revision: May 2010 2011 Versa

INDEX FOR DTCAT-5
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SERVICE INFORMATION
INDEX FOR DTC
Alphabetical IndexINFOID:0000000005928061
NOTE:
If DTC “CAN COMM CIRCUIT” is di splayed with other DTCs, first perform the trouble diagnosis for
DTC “CAN COMM CIRCUIT”. Refer to AT- 8 7
.
*1: These numbers is prescribed by SAE J2012.
*2: When the fail-safe operation occurs, the MIL illuminates.
*3: The MIL illuminates when both the “Output speed sensor signal” and the “Vehicle speed signal” meet the fail-safe condition at the
same time.
DTC No. IndexINFOID:0000000005928062
NOTE:
If DTC “CAN COMM CIRCUIT” is di splayed with other DTCs, first perform the trouble diagnosis for
DTC “CAN COMM CIRCUIT”. Refer to AT- 8 7
.
Items
(CONSULT-III screen terms) DTC*1Reference page
CONSULT-III or GST
BATT/FLUID TEMP SEN —AT-156
CAN COMM CIRCUIT U1000AT- 8 7
CONTROL UNIT (RAM) —AT-167
CONTROL UNIT (ROM) —AT-167
ENGINE SPEED P0725AT-105
FLUID TEMP SENSOR A P0710AT- 9 5
INPUT SPEED SENSOR A —AT-162
OUTPUT SPEED SENSOR*3P0720 AT-100
OVER CLUTCH SOLENOID P1760AT-148
PC SOLENOID A P0745AT-133
SHIFT SOLENOID A*2P0750 AT-138
SHIFT SOLENOID B*2P0755AT-143
TORQUE CONVERTER P0740AT-123
TORQUE CONVERTER P0744AT-128
T/M RANGE SENSOR A P0705AT- 9 0
VHCL SPEED SEN-MTR —AT-153
1GR INCORRECT RATIO P0731AT-109
2GR INCORRECT RATIO P0732AT- 11 2
3GR INCORRECT RATIO P0733AT- 11 5
4GR INCORRECT RATIO P0734AT- 11 8
DTC*1Items
(CONSULT-III screen terms) Reference page
CONSULT-III or GST
P0705 T/M RANGE SENSOR A AT- 9 0
P0710FLUID TEMP SENSOR A AT- 9 5
P0720
OUTPUT SPEED SENSOR*3AT- 1 0 0
P0725ENGINE SPEED AT- 1 0 5
P07311GR INCORRECT RATIO AT- 1 0 9
Revision: May 2010 2011 Versa

AT-6
< SERVICE INFORMATION >
INDEX FOR DTC
*1: These numbers is prescribed by SAE J2012.
*2: When the fail-safe operation occurs, the MIL illuminates.
*3: The MIL illuminates when both the “utput speed sensor signal” and the “Vehicle speed signal” meet the fail-safe condition at the
same time. P0732 2GR INCORRECT RATIO
AT- 11 2
P07333GR INCORRECT RATIO AT- 11 5
P07344GR INCORRECT RATIO AT- 11 8
P0740TORQUE CONVERTER AT- 1 2 3
P0744TORQUE CONVERTER AT- 1 2 8
P0745PC SOLENOID A AT- 1 3 3
P0750
SHIFT SOLENOID A*2AT- 1 3 8
P0755SHIFT SOLENOID B*2AT- 1 4 3
P1760OVER CLUTCH SOLENOID AT- 1 4 8
U1000CAN COMM CIRCUIT AT- 8 7
—BATT/FLUID TEMP SEN AT- 1 5 6
—CONTROL UNIT (RAM) AT- 1 6 7
—CONTROL UNIT (ROM) AT- 1 6 7
—INPUT SPEED SENSOR A AT- 1 6 2
—VHCL SPEED SEN-MTR AT- 1 5 3
DTC*1Items
(CONSULT-III screen terms) Reference page
CONSULT-III or GST
Revision: May 2010 2011 Versa

PRECAUTIONSAT-7
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PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006413332
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the battery, and wait at least 3 minutes before performing any service.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000005928064
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NVIS /IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).
• Remove and install all control units after disconnecti ng both battery cables with the ignition knob in the
″ LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NVIS/IVIS, an electrically controlled steering lock
mechanism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
Revision: May 2010 2011 Versa

AT-8
< SERVICE INFORMATION >
PRECAUTIONS
6. Perform a self-diagnosis check of all control units using CONSULT-III.
Precaution for On Board Diagnosis (OBD) System of A/T and EngineINFOID:0000000005928065
The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:
• Be sure to turn the ignition switch OFF and disconnect battery negative cable from battery negative
terminal before any repair or inspection work. The open/short circuit of related switches, sensors,
solenoid valves, etc. will cause the MIL to light up.
• Be sure to connect and lock the connectors secure ly after work. A loose (unlocked) connector will
cause the MIL to light up due to an open circuit. (Be sure the connectors are free from water, grease,
dirt, bent terminals, etc.)
• Be sure to route and secure th e harnesses properly after work. Interference of the harness with a
bracket, etc. may cause the MIL to light up due to a short circuit.
• Be sure to erase the unnecessary malfunction informa tion (repairs completed) from the TCM and
ECM before returning the vehicle to the customer.
PrecautionINFOID:0000000005928066
•Before connecting or disconn ecting the TCM harness connec-
tor, turn ignition switch OF F and disconnect the battery cable
from the negative terminal. Failure to do so may damage the
TCM. Because battery voltage is applied to TCM even if igni-
tion switch is turned off.
• When connecting or disconnect ing pin connectors into or
from TCM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on TCM pin
terminal, when connecting pin connectors.
• Before replacing TCM, perform TCM input/output signal
inspection and make sure whether TCM functions properly or
not. (See page AT-75, "
TCM Terminal and Reference Value".)
• After performing each TROUBLE DIAGNOSIS, perform “DTC
(Diagnostic Trouble Code) Confirmation Procedure”.
The DTC should not be displ ayed in the “DTC Confirmation
Procedure” if the repair is completed.
• Before proceeding with disassembly, thoroughly clean the outside of the transaxle. It is important to prevent the internal parts from
becoming contaminated by dirt or other foreign matter.
• Disassembly should be done in a clean work area.
• Use lint-free cloth or towels for wiping parts clean. Common shop rags can leave fibers that could in terfere with the operation of the A/T.
• Place disassembled parts in order for easier and proper assembly.
• All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or reassembly.
SEF289H
AAT470A
MEF040DA
Revision: May 2010 2011 Versa

PRECAUTIONSAT-9
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• Gaskets, seals and O-rings should be replaced any time the A/T is disassembled.
• It is very important to perform func tional 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 pl ace 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 AT-
18, "A/T Fluid Cooler Cleaning".
• 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
AT-17, "
Changing A/T Fluid", AT-17, "Checking A/T Fluid".
Service Notice or PrecautionINFOID:0000000005928067
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 CO-16, "
Removal and Installation" (HR16DE engine models), CO-
40, "Removal and Installation" (MR18DE engine models).
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 engi ne 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 flui d 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 e xception 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-82, "
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-39, "
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 us ing ECM self-diagnostic results mode* only when the
OD OFF indicator lamp does not indicate any malfunctions.
- Transmission range switch
- A/T 1GR, 2GR, 3GR, or 4GR function
Revision: May 2010 2011 Versa

AT-10
< SERVICE INFORMATION >
PRECAUTIONS
*: For details of OBD-II, refer to AT- 3 9.
• 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
.
Revision: May 2010 2011 Versa

PREPARATIONAT-11
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PREPARATION
Special Service ToolINFOID:0000000005928068
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name Description
—
( J-46534 )
Trim tool set For removing trim
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)
Adapter Measuring line pressure
ST35325000
( — )
Drift Installing 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)
Drift Installing LH differential side oil seal
(Use with ST35325000)
a: 59 mm (2.32 in) dia.
b: 49 mm (1.93 in) dia.
ST27180001
(J-25726-A)
Puller • Removing idler gear
• Removing output gear (HR16DE engine models)
a: 100 mm (3.94 in)
b: 110 mm (4.33 in)
c: M8 X 1.25P
AWJIA0483ZZ
NT097
SCIA7102E
SCIA7103E
NT424
Revision: May 2010
2011 Versa

AT-12
< SERVICE INFORMATION >
PREPARATION
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 punch Removing and installing lock pin of pinion mate shaft
a: 4 mm (0.16 in) dia.
ST33400001
(J-26082)
Drift • Installing oil pump housing oil seal
• Installing output gear bearing outer race (HR16DE
engine models)
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 (HR16DE
engine models)
• Remove output gear bearing outer race (HR16DE engine models)
• Removal radial needle bearing (MR18DE engine models)
• Removing differential side bearing outer races
(MR18DE engine models)
a: 250 mm (9.84 in)
b: 160 mm (6.30 in)
ST30031000
(J-22912-01)
Puller Removing reduction pinion gear bearing inner race
a: 90 mm (3.54 in) dia.
b: 50 mm (1.97 in) dia.
Tool number
(Kent-Moore No.)
Tool name
Description
SCIA7104E
NT442
NT410
NT086
NT414
NT411
Revision: May 2010
2011 Versa

PREPARATIONAT-13
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ST35272000
(J-26092)
Drift • Installing reduction pinion gear bearing inner race
• Installing idler gear bearing inner race
• Installing output gear bearing inner race (HR16DE
engine models)
a: 72 mm (2.83 in) dia.
b: 40 mm (1.57 in) dia.
c: 35.5 mm (1.398 in) dia.
ST37830000
( — )
Drift Installing idler gear bearing outer race
a: 61.9 mm (2.437 in) dia.
b: 39 mm (1.54 in) dia.
ST33200000
(J-26082)
Drift Installing differential side bearings (HR16DE engine
models)
a: 60 mm (2.36 in) dia.
b: 44.5 mm (1.752 in) dia.
ST35271000
(J-26091)
Drift • Installing idler gear
• Installing output gear (HR16DE engine models)
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 output shaft (HR16DE
engine models)
• Measuring turning torque of final drive assembly (MR18DE engine models)
KV38105710
(J-39026)
Preload adapter • Selecting differential side bearing adjusting shim
(MR18DE engine models)
• Measuring turning torque of final drive assembly
(MR18DE engine models)
Tool number
(Kent-Moore No.)
Tool name
Description
NT107
NT084
NT091
NT115
NT124
NT087
Revision: May 2010
2011 Versa