2009 NISSAN LATIO engine

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CONTENTS
AUTOMATIC TRANSAXLE
SERVICE INFORMATION .. ..........................5
INDEX FOR DTC ............................................ .....5
Alphabetical Index ............................................... ......5
DTC No. Index .................................................... ......5
PRECAUTIONS .............................................. .....7
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
7
Precaution Necessary fo r Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
7
Precaution for On Board Diagnosis (OBD) System
of A/T and Engine ............................................... ......
8
Precaution ........................................................... ......8
Service Notice or Precaution ............................... ......9
PREPARATION .............................................. ....11
Special Service Tool ........................................... ....11
Commercial Service Tool .................................... ....14
A/T FLUID ....................................................... ....17
Checking A/T Fluid .............................................. ....17
Changing A/T Fluid ............................................. ....17
A/T Fluid Cooler Cleaning ................................... ....18
A/T CONTROL SYSTEM ................................ ....21
Cross-Sectional View ... ...........................................21
Shift Mechanism .................................................. ....22
TCM Function ...................................................... ....30
CAN Communication ........................................... ....31
Input/Output Signal of TCM ................................. ....31
Line Pressure Control .. ...........................................32
Shift Control ........................................................ ....33
Lock-up Control ................................................... ....34
Engine Brake Control (Ove rrun Clutch Control) ......35
Control Valve ....................................................... ....37
Centrifugal Cancel Mechanism ........................... ....37
ON BOARD DIAGNOSTIC (OBD) SYSTEM .. ....39
Introduction ......................................................... ....39
OBD-II Function for A/T System .......................... ....39 One or Two Trip Detection Logic of OBD-II .........
....39
OBD-II Diagnostic Trouble Code (DTC) .............. ....39
Malfunction Indicator Lamp (MIL) ............................41
TROUBLE DIAGNOSIS .................................... 42
DTC Inspection Priority Chart .............................. ....42
Fail-Safe .............................................................. ....42
How to Perform Trouble Diagnosis for Quick and
Accurate Repair ................................................... ....
43
A/T Electrical Parts Location ............................... ....49
Circuit Diagram .................................................... ....50
Inspections Before Trouble Diagnosis ................. ....51
Road Test ............................................................ ....55
Check Before Engine Is Started .......................... ....56
Check at Idle ........................................................ ....56
Cruise Test - Part 1 ............................................. ....58
Cruise Test - Part 2 ............................................. ....61
Cruise Test - Part 3 ............................................. ....62
Vehicle Speed at Which Gear Shifting Occurs .... ....64
Vehicle Speed at Which Lock-up Occurs/Releas-
es ......................................................................... ....
64
Symptom Chart .................................................... ....65
TCM Terminal and Refere nce Value .......................77
CONSULT-III Function (TRANSMISSION) .......... ....79
Diagnosis Procedure withou t CONSULT-III ............83
DTC U1000 CAN COMMUNICATION LINE ..... 88
Description ........................................................... ....88
On Board Diagnosis Logic ................................... ....88
Possible Cause .................................................... ....88
DTC Confirmation Procedure .............................. ....88
Wiring Diagram - AT - CAN ................................. ....89
Diagnosis Procedure ........................................... ....90
DTC P0705 PARK/NEUTRAL POSITION
(PNP) SWITCH .................................................. 91
Description ........................................................... ....91
CONSULT-III Reference Va lue in Data Monitor
Mode .................................................................... ....
91
On Board Diagnosis Logic ................................... ....91
Possible Cause .................................................... ....91

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Wiring Diagram - AT -
SSV/B ................................
145
Diagnosis Procedure ........................................... ..146
Component Inspection ........................................ ..147
DTC P1760 OVERRUN CLUTCH SOLENOID
VALVE ............................................................ ..149
Description .......................................................... ..149
CONSULT-III Refe rence Value in Data Monitor
Mode ................................................................... ..
149
On Board Diagnosis Logic .................................. ..149
Possible Cause ................................................... ..149
DTC Confirmation Procedure .............................. ..149
Wiring Diagram - AT - OVRCSV ......................... ..150
Diagnosis Procedure ........................................... ..151
Component Inspection ........................................ ..152
DTC VEHICLE SPEED SENSOR MTR .......... ..154
Description .......................................................... ..154
CONSULT-III Refe rence Value in Data Monitor
Mode ................................................................... ..
154
On Board Diagnosis Logic .................................. ..154
Possible Cause ................................................... ..154
DTC Confirmation Procedure .............................. ..154
Wiring Diagram - AT - VSSMTR ...........................155
Diagnosis Procedure ........................................... ..156
DTC BATT/FLUID TEMP SEN (A/T FLUID
TEMP SENSOR CIRCUIT AND TCM POWER
SOURCE) ....................................................... ..
157
Description .......................................................... ..157
CONSULT-III Refe rence Value in Data Monitor
Mode ................................................................... ..
157
On Board Diagnosis Logic .................................. ..157
Possible Cause ................................................... ..157
DTC Confirmation Procedure .............................. ..157
Wiring Diagram - AT - BA/FTS ............................ ..158
Diagnosis Procedure ........................................... ..159
Component Inspection ........................................ ..161
DTC TURBINE REVOLUTION SENSOR ....... ..163
Description .......................................................... ..163
CONSULT-III Refe rence Value in Data Monitor
Mode ................................................................... ..
163
On Board Diagnosis Logic .................................. ..163
Possible Cause ................................................... ..163
DTC Confirmation Procedure .............................. ..163
Wiring Diagram - AT - PT/SEN ........................... ..164
Diagnosis Procedure ........................................... ..165
CONTROL UNIT (RAM), CONTROL UNIT
(ROM) ............................................................. ..
168
Description .......................................................... ..168
On Board Diagnosis Logic .................................. ..168
Possible Cause ................................................... ..168
DTC Confirmation Procedure .............................. ..168
Diagnosis Procedure ........................................... ..168
MAIN POWER SUPPLY AND GROUND CIR-
CUIT ................................................................ ..169
Wiring Diagram - AT - MAIN ............................... ..169 Diagnosis Procedure ...........................................
..170
PNP, OD SWITCH AND CLOSED THROT-
TLE, WIDE OPEN THROTTLE POSITION
SIGNAL CIRCUI T ............................................ 172
CONSULT-III Reference Va lue in Data Monitor
Mode .................................................................... ..
172
TCM Terminal and Refere nce Value .....................172
Diagnosis Procedure ........................................... ..172
Component Inspection ......................................... ..176
SHIFT POSITION INDICATOR CIRCUIT ........ 177
Description ........................................................... ..177
CONSULT-III Reference Va lue in Data Monitor
Mode .................................................................... ..
177
Diagnosis Procedure ........................................... ..177
TROUBLE DIAGNOSIS FOR SYMPTOMS .... 178
Wiring Diagram - AT - NONDTC ......................... ..178
OD OFF Indicator Lamp Does Not Come On ...... ..181
Engine Cannot Be Started in "P" and "N" Position ..183
In "P" Position, Vehicle Moves Forward or Back-
ward When Pushed ............................................. ..
184
In "N" Position, Vehicle Moves ............................ ..184
Large Shock "N" → "R" Position .......................... ..185
Vehicle Does Not Creep Backward in "R" Position ..186
Vehicle Does Not Creep Forw ard in "D", "2" or "1"
Position ................................................................ ..
187
Vehicle Cannot Be Started from D 1 ..................... ..188
A/T Does Not Shift: D 1→ D 2or Does Not Kick-
down: D 4→ D 2 ..................................................... ..190
A/T Does Not Shift: D 2→ D 3 ................................ ..192
A/T Does Not Shift: D 3→ D 4 ................................ ..193
A/T Does Not Perform Lock-up ........................... ..194
A/T Does Not Hold Lock-up Condition ................. ..195
Lock-up Is Not Released ..................................... ..196
Engine Speed Does Not Return to Idle (Light
Braking D 4→ D 3) ................................................. ..197
A/T Does Not Shift: D 4→ D 3, When OD OFF ...... ..198
A/T Does Not Shift: D 3→ 22, When Selector Lever
"D" → "2" Position ............................................... ..
199
A/T Does Not Shift: 2 2→ 11, When Selector Lever
"2" → "1" Position ................................................ ..
200
Vehicle Does Not Decelerate by Engine Brake ... ..202
TCM Self-Diagnosis Does Not Activate ............... ..205
A/T SHIFT LOCK SYSTEM ............................. 207
Description ........................................................... ..207
Shift Lock System Parts Location ........................ ..207
Wiring Diagram - AT - SHIFT .............................. ..208
Diagnosis Procedure ........................................... ..208
TRANSMISSION CONTROL MODULE .......... 211
Removal and Installation ..................................... ..211
SHIFT CONTROL SYSTEM ............................ 212
Control Device Removal an d Installation ...............212
Control Device Disassembly and Assembly ..........215
Selector Lever Knob Remo val and Installation ......215
Adjustment of A/T Position .................................. ..216

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SERVICE INFORMATION
INDEX FOR DTC
Alphabetical Index INFOID:0000000004305286
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-88 .
*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 “Revolution sensor signal” and the “Vehicle speed sensor signal” meet the fail-safe condi tion at
the same time.
DTC No. Index INFOID:0000000004305287
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-88 .
Items
(CONSULT-III screen terms) DTC
*1
Reference page
CONSULT-III or GST
A/T 1ST GR FNCTN P0731 AT-110A/T 2ND GR FNCTN P0732
AT-113A/T 3RD GR FNCTN P0733
AT-116A/T 4TH GR FNCTN P0734
AT-119A/T TCC S/V FNCTN P0744
AT-129ATF TEMP SEN/CIRC P0710
AT-96BATT/FLUID TEMP SEN —
AT-157CAN COMM CIRCUIT U1000
AT-88CONTROL UNIT (RAM) —
AT-168CONTROL UNIT (ROM) —
AT-168ENGINE SPEED SIG P0725
AT-106LINE PRESSURE S/V P0745
AT-134OVERRUN CLUTCH S/V P1760
AT-149PNP SW/CIRC P0705
AT-91SHIFT SOLENOID/V A*
2
P0750AT-139SHIFT SOLENOID/V B*
2
P0755AT-144T/C CLUTCH SOL/V P0740
AT-124TURBINE SENSOR —
AT-163VHCL SPEED SEN-A/T*
3
P0720AT-101VHCL SPEED SEN-MTR —
AT-154DTC
*1
Items
(CONSULT-III screen terms) Reference page
CONSULT-III or GST
P0705 PNP SW/CIRC AT-91P0710 ATF TEMP SEN/CIRC
AT-96P0720
VHCL SPEED SEN-A/T* 3
AT-101P0725 ENGINE SPEED SIG
AT-106P0731 A/T 1ST GR FNCTN
AT-110

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PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER" INFOID:0000000004803451
The Supplemental Restraint System such as “A IR 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.
• 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 Wh eel Rotation After Battery Disconnect
INFOID:0000000004305289
NOTE:
• This Procedure is applied only to models with Intell igent 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 pow er 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.)
6. Perform a self-diagnosis check of al l control units using CONSULT-III.

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• 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 Precaution INFOID:0000000004305292
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 Serv ice Bulletins for latest A/T oil cooler cleaning pro-
cedure. For radiator replacement, refer to CO-16, " Removal and Installation " (HR16DE engine models),
CO-38, " 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-83, " Diagnosis Procedure without CONSULT-III " for the indicator used to display each self-diagnostic
result.
• The self-diagnostic results indicated by the MIL ar e 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 avo
id 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.
- PNP switch
- A/T 1st, 2nd, 3rd, or 4th gear function
*: For details of OBD-II, refer to AT-39 .

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PREPARATION
Special Service Tool INFOID:0000000004305293
The actual shapes of Kent-Moore tools may differ fr om those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name Description
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
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) SCIA7102E
NT424
SCIA7104E

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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)
ST35321000
( — )
Drift Installing output shaft bearing (MR18DE engine mod-
els)
a: 49 mm (1.93 in) dia.
b: 41 mm (1.61 in) dia.
Tool number
(Kent-Moore No.)
Tool name DescriptionNT115
NT124
NT087
NT073

AMT153
Tool name Description
Power tool Loosening bolts and nuts
Drift Installing manual shaft oil seal
a: 22 mm (0.87 in) dia.
Drift Installing RH differential side oil seal
a: 54 mm (2.13 in) dia.
b: 47 mm (1.85 in) dia.
Drift Removing output shaft inner race (HR16DE engine
models)
a: 35 mm (1.38 in) dia. NT115
SCIA8471E