2008 NISSAN LATIO service

CVT-180
< SERVICE INFORMATION >
TRANSAXLE ASSEMBLY
• When installing the cooler outlet tube (1) to the transaxle assembly
(2), align the cooler tube bracket (A) against the transaxle as
shown.
• When installing the transaxle to the engine, align the matching mark on the drive plate with the matching
mark on the torque converter alignment stud.
• When securing the transaxle to the engine, attach the bolts in
accordance with the following standard.
• When installing the drive plate to torque converter nuts, tighten
them temporarily. Then tighten the nuts to the specified torque.
• After completing installation check for fluid level, fluid leakage, and the positions of CVT. Refer to MA-19,
"Checking CVT Fluid", CVT-171, "Adjustment of CVT Position" and CVT-171, "Checking of CVT Position".
• When replacing the CVT assembly, erase EEP ROM in TCM. Refer to CVT-8, "
Service After Replacing TCM
and Transaxle Assembly".
WCIA0618E
Bolt No. 1 (Transaxle to engine) 2 (Engine to transaxle)
Number of bolts 2 7
Bolt length
“A” mm (in)55 (2.17) 50 (1.97)
Tightening torque
N·m (kg-m, ft-lb)62 (6.3, 46)
WCIA0619E
Converter nuts: : 51 N·m (5.2 kg-m, 38 ft-lb)
WCIA0616E

SERVICE DATA AND SPECIFICATIONS (SDS)
CVT-181
< SERVICE INFORMATION >
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SERVICE DATA AND SPECIFICATIONS (SDS)
General SpecificationINFOID:0000000001703688
*1: Refer to MA-10, "Fluids and Lubricants" .
Vehicle Speed When Shifting GearsINFOID:0000000001703689
Numerical value data are reference values.
CAUTION:
Lock-up clutch is engaged when vehicle speed is approximately 18 km/h (11 MPH) to 90 km/h (56 MPH).
Stall SpeedINFOID:0000000001703690
Line PressureINFOID:0000000001703691
Applied model MR18DE engine
CVT modelRE0F08A
CVT assembly Model code number 1XB6B
Transmission gear ratio“D” position Variable
Reverse 2.689
Final drive 5.473
Recommended fluid NISSAN CVT Fluid NS-2*1
Fluid capacity 8.3 liter (8-3/4 US qt, 7-1/4 Imp qt)
CAUTION:
• Use only Genuine NISSAN CVT Fluid NS-2. Do not mix with other fluid.
• Using CVT fluid other than Genuine NISSAN CVT Fluid NS-2 will deteriorate in driveability and CVT durability, and may dam-
age the CVT, which is not covered by the warranty.
Engine type Throttle position Shift patternEngine speed (rpm)
At 40 km/h (25 MPH) At 60 km/h (37 MPH)
MR18DE8/8“D” position
Overdrive-off mode
“L” position 3,600 - 4,500 4,400 - 5,300
2/8“D” position 1,300 - 3,100 1,400 - 3,500
Overdrive-off mode 2,200 - 3,000 2,800 - 3,600
“L” position 3,200 - 4,100 3,900 - 4,800
Stall speed 2,600 - 3,150 rpm
Engine speed Line pressure kPa (kg/cm
2 , psi)
“R”, “D” and “L” positions
At idle 650 (6.63, 94.3)
At stall 4,250 (43.35, 616.3)

CVT-182
< SERVICE INFORMATION >
SERVICE DATA AND SPECIFICATIONS (SDS)
Solenoid Valves
INFOID:0000000001703692
CVT Fluid Temperature SensorINFOID:0000000001703693
Primary Speed SensorINFOID:0000000001703694
Secondary Speed SensorINFOID:0000000001703695
Removal and InstallationINFOID:0000000001703696
Name Resistance (Approx.) Terminal
Pressure control solenoid valve B (secondary
pressure solenoid valve)
3 - 9 Ω3
Pressure control solenoid valve A (line pressure
solenoid valve)2
Torque converter clutch solenoid valve12
Lock-up select solenoid valve 6 - 19Ω13
Name Condition CONSULT-II “DATA MONITOR” (Approx.) Resistance (Approx.)
ATF TEMP SEN20°C (68°F) 2.0 V 6.5 kΩ
80°C (176°F) 1.0 V 0.9 kΩ
Name Condition Data (Approx.)
Primary speed sensor When driving [“L” position, 20 km/h (12 MPH)]. 1000 Hz
Name Condition Data (Approx.)
Secondary speed sensor When driving [“D” position, 20 km/h (12 MPH)]. 570 Hz
Distance between end of converter housing and torque converter 14.4 mm (0.57 in) or more

DI-1
ELECTRICAL
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SECTION DI
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CONTENTS
DRIVER INFORMATION SYSTEM
SERVICE INFORMATION ............................2
PRECAUTION .....................................................2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
2
PREPARATION ...................................................3
Commercial Service Tool ..........................................3
COMBINATION METERS ...................................4
Component Parts and Harness Connector Loca-
tion ............................................................................
4
System Description ...................................................4
Arrangement of Combination Meter ..........................6
Internal Circuit ...........................................................7
Wiring Diagram - METER - .......................................8
Combination Meter Harness Connector Terminal
Layout .....................................................................
10
Terminal and Reference Value for Combination
Meter .......................................................................
10
Self-Diagnosis Mode of Combination Meter ............11
CONSULT-III Function (METER/M&A) ...................13
Trouble Diagnosis ...................................................14
Symptom Chart .......................................................15
Power Supply and Ground Circuit Inspection .........15
Vehicle Speed Signal Inspection .............................16
Engine Speed Signal Inspection .............................17
Fuel Level Sensor Signal Inspection .......................17
Fuel Gauge Fluctuates, Indicates Wrong Value, or
Varies ......................................................................
19
Fuel Gauge Does Not Move to Full-position ...........19
DTC [U1000] CAN Communication Circuit .............19
Electrical Component Inspection .............................19
Removal and Installation .........................................20
WARNING LAMPS .............................................21
Schematic ................................................................21
Wiring Diagram - WARN - .......................................22
Oil Pressure Warning Lamp Stays Off (Ignition
Switch ON) ..............................................................
30
Oil Pressure Warning Lamp Does Not Turn Off
(Oil Pressure Is Normal) ..........................................
32
Component Inspection .............................................32
A/T INDICATOR ................................................34
System Description ..................................................34
Wiring Diagram - AT/IND - .......................................35
A/T Indicator Does Not Illuminate ............................36
CVT INDICATOR ...............................................38
System Description ..................................................38
Wiring Diagram - CVTIND - .....................................38
CVT Indicator Does Not Illuminate ..........................39
WARNING CHIME .............................................41
Component Parts and Harness Connector Loca-
tion ...........................................................................
41
System Description ..................................................41
Wiring Diagram - CHIME - .......................................44
Terminal and Reference Value for BCM ..................45
CONSULT-III Function (BCM) .................................45
Trouble Diagnosis ....................................................46
Combination Meter Buzzer Circuit Inspection .........47
Front Door Switch LH Signal Inspection ..................48
Key Switch Signal Inspection (Without Intelligent
Key) .........................................................................
49
Key Switch and Ignition Knob Switch Signal In-
spection (With Intelligent Key, When Mechanical
Key Is Used) ............................................................
50
Lighting Switch Signal Inspection ............................52
Parking Brake Switch Signal Inspection ..................52
Electrical Component Inspection .............................53

DI-2
< SERVICE INFORMATION >
PRECAUTION
SERVICE INFORMATION
PRECAUTION
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001704488
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 severity 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 whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoperative, 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 incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.

PREPARATION
DI-3
< SERVICE INFORMATION >
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PREPARATION
Commercial Service ToolINFOID:0000000001704489
Tool nameDescription
Power toolLoosening bolts and nuts
PBIC0191E

DI-4
< SERVICE INFORMATION >
COMBINATION METERS
COMBINATION METERS
Component Parts and Harness Connector LocationINFOID:0000000001704490
System DescriptionINFOID:0000000001704491
UNIFIED METER CONTROL UNIT
• Speedometer, odo/trip meter, tachometer and fuel gauge are controlled by the unified meter control unit,
which is built into the combination meter.
• Warning and indicator lamps are controlled by signals drawn from the CAN communication system, BCM
(body control module), and components connected directly to the combination meter.
• Odo/trip meter and A/T indicator (with A/T) or CVT indicator (with CVT) segments can be checked in self-
diagnosis mode.
• Meters/gauges can be checked in self-diagnosis mode.
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times
• through 10A fuse [No. 13, located in the fuse block (J/B)]
• to combination meter terminal 27.
With the ignition switch in the ON or START position, power is supplied
• through 10A fuse [No. 14, located in the fuse block (J/B)]
• to combination meter terminal 28.
Ground is supplied
• to combination meter terminals 21, 22 and 23
• through grounds M57 and M61.
1. Combination meter M24 2. ECM E16 3. ABS actuator and electric unit (con-
trol unit) E33
4. Fuel level sensor unit and fuel pump
(fuel level sensor) B100 (view with
rear seat and inspection hole cover
removed)
(⇐: Front)5. Vehicle speed sensor F41 (A/T
shown, M/T similar)6. TCM E31 (view with instrument low-
er finisher removed)
WKIA5450E

COMBINATION METERS
DI-5
< SERVICE INFORMATION >
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SPEEDOMETER
With ABS
The ABS actuator and electric unit (control unit) provides a vehicle speed signal to the combination meter via
CAN communication lines.
Without ABS or CVT
The vehicle speed sensor provides a vehicle speed signal to the combination meter for speedometer indica-
tion.
With CVT, Without ABS
The TCM provides a vehicle speed signal to the combination meter via CAN communication lines.
TACHOMETER
The tachometer indicates engine speed in revolutions per minute (rpm). The ECM provides an engine speed
signal to combination meter via CAN communication lines.
FUEL GAUGE
The fuel gauge indicates the approximate fuel level in the fuel tank.
The fuel gauge is regulated by the unified meter control unit and a variable resistor signal supplied
• to combination meter terminal 24
• through fuel level sensor unit and fuel pump terminal 5
• through fuel level sensor unit and fuel pump terminal 2
• from combination meter terminal 6.
ODO/TRIP METER
The vehicle speed signal and the memory signals from the meter memory circuit are processed by the combi-
nation meter and the mileage is displayed.
How to Change the Display
Refer to Owner's Manual for odo/trip meter operating instructions.
CAN COMMUNICATION SYSTEM DESCRIPTION
Refer to LAN-6 .
WKIA5370E
SKIB6904E