NISSAN LATIO 2011 Service Repair Manual

CVT-6
< SERVICE INFORMATION >[RE0F08B]
INDEX FOR DTC
*1: These numbers are pr
escribed by SAE J2012.
*2: Models without ABS does not indicate.
DTC
Items
(CONSULT-III screen terms) Reference page
OBD-II
Except OBD-II
CONSULT-III GST*
1CONSULT-III only
“TRANSMISSION”
— P0703 BRAKE SWITCH B CVT-60
P0705P0705 T/M RANGE SENSOR A CVT-62
P0710P0710 FLUID TEMP SENSOR A CVT-67
P0715P0715 INPUT SPEED SENSOR A CVT-72
P0720P0720 OUTPUT SPEED SENSOR CVT-76
—P0725 ENGINE SPEED CVT-81
—P0730 INCORRECT GR RATIO CVT-83
P0740P0740 TORQUE CONVERTER CVT-84
P0744 P0744 TORQUE CONVERTER CVT-89
P0745P0745 PC SOLENOID A CVT-91
P0746P0746 PC SOLENOID A CVT-96
P0776P0776 PC SOLENOID B CVT-98
P0778P0778 PC SOLENOID B CVT-100
P0840P0840 FLUID PRESS SEN/SW A CVT-105
—P0841 FLUID PRESS SEN/SW A CVT-109
—P0868 FLUID PRESS LOW C V T- 111
—P1701 TCM CVT-113
—P1705 TP SENSOR CVT-117
—P1722
VEHICLE SPEED*2CVT-119
— P1723 SPEED SENSOR CVT-121
—P1726 THROTTLE CONTROL SIG CVT-123
P1740P1740 SLCT SOLENOID CVT-124
—P1745 LINE PRESS CONTROL CVT-128
P1777P1777 STEP MOTOR CVT-129
P1778P1778 STEP MOTOR CVT-133
U1000U1000 CAN COMM CIRCUIT CVT-56
—U1010 CONTROL UNIT(CAN) CVT-59
Revision: May 2010 2011 Versa

PRECAUTIONSCVT-7
< SERVICE INFORMATION > [RE0F08B]
D
E
F
G H
I
J
K L
M A
B
CVT
N
O P
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006414971
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:0000000005928721
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

CVT-8
< SERVICE INFORMATION >[RE0F08B]
PRECAUTIONS
6. Perform a self-diagnosis check of a
ll control units using CONSULT-III.
Precaution for On Board Diagnosis (OBD) System of CVT and EngineINFOID:0000000005928722
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 the battery cable from the negative terminal
before any repair or inspection work. The open/sho rt 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 connector is 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 connect rubber tubes properly afte r work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to a malfunction of the EVAP system or fuel injection system, etc.
• Be sure to erase the unnecessary malfunction informa tion (repairs completed) from the TCM and
ECM before returning the vehicle to the customer.
Service After Replacing TCM and Transaxle AssemblyINFOID:0000000005928723
SERVICE AFTER REPLACING TCM AND TRANSAXLE ASSEMBLY
Perform the applicable service according to the following table when replacing TCM or transaxle assembly.
CAUTION:
• Never start the engine unti l the service is completed.
• “DTC P1701” may be indicated soon after replaci ng TCM or transaxle assembly (after erasing the
memory in the pattern B). Restart the self-diagnos is after erasing the self-diagnosis result using
CONSULT-III. Check that no error is detected.
NOTE:
Old unit means that the unit has been already used for another vehicle.
PATTERN A
1. Shift the selector lever to “P” position after replacing TCM.
2. Turn ignition switch ON.
3. Check that the shift position indicator in the combination meter turns ON (It indicates approximately 1 or 2 seconds after turning ignition switch ON.)
• Check the following items if shift position indicator does not turn ON. Repair or replace accordingly as
necessary.
- The harness between TCM and ROM ASSY in tr ansaxle assembly is open or shorted.
- Terminals disconnected, loose, or bent from connector housing.
PATTERN B
1. Turn ignition switch ON after replacing each part.
2. Connect the vehicle with CONSULT-III.
3. Start engine.
CAUTION:
Never start driving.
4. Select “Data monitor” in “TRANSMISSION”.
5. Warm up transaxle assembly until “ATFTEMP COUNT” indicates 47 [approximately 20° C (68°F)] or more,
and then turn ignition switch OFF.
TCM Transaxle assembly Service pattern
Replaced with new unit Not replaced the unit “PATTERN A”
Not replaced the unit Replaced with new or old unit
“PATTERN B”
Replaced with old unit Not replaced the unit
Replaced with new or old unit
Replaced with new unit Replaced with new or old unit “PATTERN C”
Revision: May 2010 2011 Versa

PRECAUTIONSCVT-9
< SERVICE INFORMATION > [RE0F08B]
D
E
F
G H
I
J
K L
M A
B
CVT
N
O P
6. Turn ignition switch ON. CAUTION:
Never start engine.
7. Select “Self Diagnostic Results” in “TRANSMISSION”.
8. Shift the selector lever to “R” position.
9. Depress slightly the accelerator pedal (Pedal angle: 2/8) while depressing the brake pedal.
10. Select “Erase” with step 9.
11. Release brake pedal and accelerator pedal.
12. Turn ignition switch OFF while keeping the selector lever in “R” position.
13. Wait approximately 10 seconds.
14. Turn ignition switch ON while keeping the selector lever in “R” position.
15. Select “Special function” in “TRANSMISSION”.
16. Check that the value on “CALIB DATA” in CONSULT-II I is the same as the data listed in the table below.
• Restart the procedure from step 3 if the values are not the same.
CALIB DATA
17. Shift the selector lever to “P” position.
18. Check that the shift position indicator in combinat ion meter turns ON. (It indicates approximately 1 or 2
seconds after shifting the selector lever to “P” position.)
• Check the following items if shift position indicator does not turn ON. Repair or replace accordingly as
necessary.
- The harness between TCM and ROM ASSY in transaxle assembly is open or shorted.
- Terminals disconnected, loose, or bent from connector housing.
- Power supply and ground of TCM. Refer to CVT-113, "
Description".
PATTERN C
1. Replace transaxle assembly first, and then replace TCM.
2. Perform the service of “PATTERN A”.
(Perform the service of “PATTERN B” if TCM is replaced first.)
Removal and Installation Procedure for CVT Unit ConnectorINFOID:0000000005928724
REMOVAL
Rotate bayonet ring counterclockwise, pull out CVT unit harness
connector upward and disconnect it.
INSTALLATION
Item name Display value
UNIT CLB ID 1 00
UNIT CLB ID 2 00
UNIT CLB ID 3 00
UNIT CLB ID 4 00
UNIT CLB ID 5 00
UNIT CLB ID 6 00
SCIA2096E
Revision: May 2010 2011 Versa

CVT-10
< SERVICE INFORMATION >[RE0F08B]
PRECAUTIONS
1. Align CVT unit harness connector terminal body marking with
bayonet ring marking, insert CVT unit harness connector, and
then rotate bayonet ring clockwise.
2. Rotate bayonet ring clockwise until CVT unit harness connector terminal body marking is aligned with the bayonet ring marking
(linear slit) as shown.
CAUTION:
• Securely align CVT unit ha rness connector terminal body
marking with bayonet ring mark ing (linear slit). Do not
make a half fit condition as shown.
• Do not mistake the bayonet ring marking (linear slit) for
other dent portion.
PrecautionINFOID:0000000005928725
NOTE:
If any malfunction occurs in the RE0F08B m odel transaxle, replace the entire transaxle assembly.
• Before connecting or disconn ecting the TCM harness connec-
tor, turn ignition switch OFF and disconnect negative battery
cable. Because battery voltage is applied to TCM even if igni-
tion switch is turned OFF.
SCIA2097E
SCIA2098E
SCIA2099E
SEF289H
Revision: May 2010 2011 Versa

PRECAUTIONSCVT-11
< SERVICE INFORMATION > [RE0F08B]
D
E
F
G H
I
J
K L
M A
B
CVT
N
O P
• When connecting or disconnecting pin connectors into or
from TCM, take care not to damage pin terminals (bend or
break).
When connecting pin connectors make sure that there are not
any bends or breaks on TCM pin terminal.
• Before replacing TCM, perform TCM input/output signal
inspection and make sure whether TCM functions properly or
not. CVT-46, "
TCM Terminal and Reference Value".
• After performing each TROUBL E DIAGNOSIS, perform “DTC
Confirmation Procedure”.
If the repair is completed the DTC should not be displayed in
the “DTC Confirmation Procedure”.
• Always use the specified br and of CVT fluid. Refer to MA-14, "
Flu-
ids and Lubricants".
• Use lint-free paper, not cloth rags, during work.
• After replacing the CVT fluid, dispose of the waste oil using the methods prescribed by law, ordinance, etc.
Service Notice or PrecautionINFOID:0000000005928726
CVT FLUID COOLER SERVICE
If CVT fluid contains friction material (clutches, brakes , etc.), or if an CVT is replaced, inspect and clean the
CVT fluid cooler mounted in the radiator or replace the radiator. Flush cooler lines using cleaning solvent and
compressed air after repair. For CVT fluid cooler cleaning procedure, refer to CVT-15, "
CVT Fluid Cooler
Cleaning". For radiator replacement, refer to CO-40.
OBD-II SELF-DIAGNOSIS
• CVT self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through
the blinking pattern of the malfunction indi cator lamp (MIL). Refer to the table on CVT-48, "
CONSULT-III
Function (TRANSMISSION)" 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 on CVT-27, "
OBD-II Diagnostic Trouble Code (DTC)" to complete the
repair and avoid unnecessary blinking of the MIL.
For details of OBD-II, refer to EC-541, "
Introduction".
• Certain systems and components, especially those re lated to OBD, may use the new style slide-lock-
ing type harness connector. For description and how to disconnect, refer to PG-65
.
ATFTEMP COUNT Conversion Table INFOID:0000000005928727
SEF291H
MEF040DA
SEF217U
Revision: May 2010 2011 Versa

CVT-12
< SERVICE INFORMATION >[RE0F08B]
PRECAUTIONS
ATFTEMP COUNT
Temperature °C ( °F) ATFTEMP COUNT Temperature °C ( °F)
4 –30 (–22) 17790 (194)
8 –20 (–4) 18395 (203)
13 –10 (14) 190100 (212)
17 –5 (23) 196105 (221)
21 0 (32) 201110 (230)
27 5 (41) 206115 (239)
32 10 (50) 210120 (248)
39 15 (59) 214125 (257)
47 20 (68) 218130 (266)
55 25 (77) 221135 (275)
64 30 (86) 224140 (284)
73 35 (95) 227145 (293)
83 40 (104) 229150 (302)
93 45 (113) 231155 (311)
104 50 (122) 233160 (320)
114 55 (131) 235165 (329)
124 60 (140) 236170 (338)
134 65 (149) 238175 (347)
143 70 (158) 239180 (356)
152 75 (167) 241190 (374)
161 80 (176) 243200 (392)
169 85 (185) ——
Revision: May 2010 2011 Versa

PREPARATIONCVT-13
< SERVICE INFORMATION > [RE0F08B]
D
E
F
G H
I
J
K L
M A
B
CVT
N
O P
PREPARATION
Special Service ToolINFOID:0000000005928728
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service ToolINFOID:0000000005928729
Tool number
(Kent-Moore No.)
Tool name Description
—
(OTC3492)
Oil pressure gauge set Measuring line pressure
—
(J-47244)
Drift Installing differential side oil seal
• Transaxle case side (left)
a: 65.83 mm (2.59 in) dia.
b: 53.85 mm (2.12 in) dia.
ST33400001
(J-47005)
Drift Installing differential side oil seal
• Converter housing side (right)
a: 69.85 mm (2.75 in) dia.
b: 49.53 mm (1.95 in) dia.
—
( J-46534 )
Trim tool set For removing trim
SCIA7531E
SCIA5777E
SCIA5777E
AWJIA0483ZZ
Tool number
Tool name
Description
Power tool Loosening nuts and bolts
PBIC0190E
Revision: May 2010 2011 Versa

CVT-14
< SERVICE INFORMATION >[RE0F08B]
CVT FLUID
CVT FLUID
Checking CVT FluidINFOID:0000000005928730
FLUID LEVEL CHECK
Fluid level should be checked with the fluid warmed up to 50
° to 80° C (122° to 176°F).
1. Check for fluid leakage.
2. With the engine warmed up, drive the vehicle to warm up the CVT fluid. When ambient temperature is 20 °C (68° F), it takes
about 10 minutes for the CVT fluid to warm up to 50 ° to 80° C
(122° to 176 °F).
3. Park the vehicle on a level surface and set the parking brake.
4. With engine at idle, while depressing brake pedal, move the selector lever throughout the entire shift range and return it to
the “P” position.
5. Press the tab on the CVT fluid level gauge to release the lock and pull out the CVT fluid level gauge from the CVT fluid charg-
ing pipe.
6. Wipe fluid off the CVT fluid level gauge. Then rotate the CVT fluid level gauge 180 ° and re-insert it into the CVT charging pipe
as far as it will go.
CAUTION:
Always use lint free paper towels to wipe fluid off the CVT
fluid level gauge.
7. Remove the CVT fluid level gauge and check that the fluid level is within the specified range as shown. If the fluid level is at or
below the low side of the range, add the necessary specified
NISSAN CVT fluid through the CVT charging pipe.
CAUTION:
• Only use specified NISSAN CVT fluid.
• Do not overfill the CVT.
8. Install the CVT fluid level gauge to the CVT fluid charging pipe until it locks. CAUTION:
When CVT fluid level gauge is in stalled into the CVT fluid charging pipe, make sure that the CVT
fluid level gauge is securely locked in place.
SMA146B
SCIA1933E
SCIA1931E
Fluid grade: Refer to MA-14, "Fluids and Lubri-
cants".
SCIA1932E
Revision: May 2010 2011 Versa

CVT FLUIDCVT-15
< SERVICE INFORMATION > [RE0F08B]
D
E
F
G H
I
J
K L
M A
B
CVT
N
O P
FLUID CONDITION CHECK
Changing CVT FluidINFOID:0000000005928731
1. Warm up CVT fluid by driving the vehicle for 10 minutes.
• : Vehicle front
• Radiator (2)
• CVT fluid cooler hose [inlet side (3)]
• Transaxle assembly (4)
2. Drain CVT fluid from CVT fluid cooler hose [outlet side (1)] and refill with new specified NISSAN CVT fluid in the CVT fluid
charging pipe with the engine running at idle speed.
CAUTION:
Only use the specifi ed NISSAN CVT fluid.
3. Refill until new CVT fluid comes out from CVT fluid cooler hose [outlet side (1)]. NOTE:
About 30 to 50% extra fluid will be required for this procedure.
4. Check fluid level and condition. Refer to CVT-14, "
Checking CVT Fluid".
CAUTION:
Delete CVT fluid deterioration date with CONSULT-III after changing CVT fluid. Refer to CVT-48,
"CONSULT-III Function (TRANSMISSION)".
CVT Fluid Cooler CleaningINFOID:0000000005928732
Whenever a CVT is repaired, overhauled, or replaced, the CVT fluid cooler mounted in the radiator must be
inspected and cleaned.
Metal debris and friction material, if present, can be trapped or become deposit in the CVT fluid cooler. This
debris can contaminate the newly serviced CVT or, in severe cases, can block or restrict the flow of CVT fluid.
In either case, malfunction of the newly serviced CVT may occur.
Debris, if present, may deposit as CVT fluid enters the cool er inlet. It will be necessary to back flush the cooler
through the cooler outlet in order to flush out any built up debris.
CVT FLUID COOLER CLEANING PROCEDURE
1. Identify the CVT inlet and outlet fluid cooler hoses.
2. Position an oil pan under the inlet and outlet cooler hoses.
Fluid status Conceivable cause Required operation
Varnished (viscous
varnish state) Clutch, brake
scorchedReplace the CVT fluid and check the
CVT main unit and the vehicle for
malfunctions (wire harness, cooler
pipes, etc.)
Milky white or cloudy Water in the fluid Replace the CVT fluid and check for places where water is getting in.
Large amount of
metal powder mixed
in fluid Unusual wear of
sliding parts within
CVTReplace the CVT fluid and check for
improper operation of the CVT.
ATA0022D
Fluid capacity and grade: Refer to
MA-14, "Fluids
and Lubricants".SCIA6088E
Revision: May 2010 2011 Versa