NISSAN LATIO 2010 Service Repair Manual

COOLING FANCO-19
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COOLING FAN
Component (Models with A/C)INFOID:0000000005398189
Component (Models without A/C)INFOID:0000000005398190
1. Fan motor cover
2. Fan motor3. Cooling fan control module
4. Washer 5. Fan shroud6. Washer
7. Cooling fan A. Apply on fan motor shaft Front
PBIC4538E
1. Fan motor 2. Fan shroud3. Cooling fan
A. Apply on fan motor shaft Front
WBIA0786E
Revision: January 20102010 Versa

CO-20
< ON-VEHICLE REPAIR >[HR16DE]
COOLING FAN
Removal and Installation
INFOID:0000000005398191
REMOVAL
1. Partially drain engine coolant from radiator. Refer to CO-12, "Changing Engine Coolant".
CAUTION:
• Perform this step when engine is cold.
• Do not spill engine coolant on drive belt.
2. Remove air duct (inlet). Refer to EM-26, "
Exploded View".
3. Remove reservoir tank.
4. Disconnect radiator hose (upper) at radiator side. Refer to CO-17, "
Component".
5. Disconnect harness connectors from fan motor, and move harness to aside.
6. Remove cooling fan assembly. CAUTION:
Be careful not to damage or scratch the radiator core.
INSTALLATION
Installation is in the reverse order of removal.
• Cooling fans are controlled by ECM. For details, refer to EC-415, "
Description".
CAUTION:
Be careful not to damage or scratch the radiator core.
Disassembly and AssemblyINFOID:0000000005714051
DISASSEMBLY
1. Remove cooling fan from fan motor.
2. Remove fan motor from fan shroud.
INSPECTION AFTER DISASSEMBLY
Inspect cooling fan for crack or unusual bend.
• If anything is found, replace cooling fan.
ASSEMBLY
Assembly is in the reverse order of disassembly.
Revision: January 20102010 Versa

WATER PUMPCO-21
< ON-VEHICLE REPAIR > [HR16DE]
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WATER PUMP
Exploded ViewINFOID:0000000005398192
Removal and InstallationINFOID:0000000005398193
REMOVAL
1. Drain engine coolant from radiator. Refer to
CO-12, "Changing Engine Coolant".
CAUTION:
• Perform this step when the engine is cold.
• Never spill engine coolant on drive belts.
2. Partially remove front fender protector (RH). Refer to EI-24, "
Removal and Installation".
3. Loosen mounting bolts of water pump pulley before loosening belt tension of drive belt.
4. Remove drive belt. Refer to EM-15, "
Removal and Installation".
5. Remove water pump pulley.
6. Remove water pump. • Loosen mounting bolts in reverse order as shown.
• Engine coolant will leak from cylinder block, so have a recep-tacle ready below.
CAUTION:
• Handle water pump vane so that it does not contact any other parts.
• Water pump cannot be disassembled and should be replaced as a unit.
INSTALLATION
Installation is in the reverse order of removal.
Water pump.
1. Gasket 2. Water pump3. Water pump pulley
PBIC3807E
KBIA3393J
Revision: January 20102010 Versa

CO-22
< ON-VEHICLE REPAIR >[HR16DE]
WATER PUMP
• Tighten bolts in numerical order as shown.
Water pump pulley.
CAUTION:
Never install mounting bolts
(A) to oblong holes (B).
• Water pump pulley (1)
InspectionINFOID:0000000005398194
INSPECTION AFTER REMOVAL
• Visually check if there is no significant dirt or rusting on water
pump body and vane (A).
• Make sure that there is no looseness in vane shaft, and that it turns smoothly when rotated by hand.
• Replace water pump, if necessary.
INSPECTION AFTER INSTALLATION
• Check that the reservoir tank cap is tightened.
• Check for leaks of engine coolant. Refer to CO-12, "
Inspection".
• Start and warm up the engine. Visually check for leaks of engine coolant.
KBIA3393J
PBIC3809E
PBIC3808E
Revision: January 20102010 Versa

THERMOSTATCO-23
< ON-VEHICLE REPAIR > [HR16DE]
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THERMOSTAT
Exploded ViewINFOID:0000000005398195
Removal and InstallationINFOID:0000000005398196
REMOVAL
1. Drain engine coolant from radiator. Refer to
CO-12, "Changing Engine Coolant".
CAUTION:
• Perform this step when engine is cold.
• Never spill engine coolant on drive belt.
2. Remove air duct (inlet). Refer to EM-26, "
Exploded View".
3. Remove reservoir tank. Refer to CO-17, "
Component".
4. Add paint mark, then disconnect radiator hos e (lower) from water inlet. Refer to CO-17, "
Component".
5. Remove water inlet and thermostat. • Engine coolant will leak from cylinder block, so have a receptacle ready below.
INSTALLATION
Installation is in the reverse order of removal.
Thermostat
• Install thermostat making sure rubber ring (1) groove fits securelyto thermostat flange (A).
1. Radiator hose (lower) 2. Water inlet3. Rubber ring
4. Thermostat
A. To radiator
PBIC3810E
PBIC3811E
Revision: January 20102010 Versa

CO-24
< ON-VEHICLE REPAIR >[HR16DE]
THERMOSTAT
• Install thermostat (2) into the cylinder block (1) with jiggle valve (A)
facing upwards.
Water Inlet.
After installation, fix water inlet clip (A) on the oil level gauge guide
(1) positioned (B) as shown.
InspectionINFOID:0000000005398197
INSPECTION AFTER REMOVAL
WARNING:
Use a protector to prevent a burn during the work.
Thermostat
• Place a thread (A) so that it is caught in the valves of thermostat(1). Immerse fully in a container (B) filled with water. Heat while
stirring.
• The valve opening temperature is the temperature at which the valve opens and falls from the thread.
• Continue heating. Check the full-open valve lift amount.
• After checking the full-open valve lift amount, lower the water tem- perature and check the valve closing temperature.
• If out of the standard, replace thermostat.
INSPECTION AFTER INSTALLATION
• Check that the reservoir tank cap is tightened.
• Check for leaks of engine coolant using suitable tools. Refer to CO-12, "
Inspection".
• Start and warm up the engine. Visually make sure that there is no leaks of engine coolant.
PBIC3812E
PBIC3755E
Standard : Refer to CO-27, "Thermostat".
PBIC3314J
Revision: January 20102010 Versa

WATER OUTLETCO-25
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WATER OUTLET
Exploded ViewINFOID:0000000005398198
Removal and InstallationINFOID:0000000005398199
REMOVAL
1. Drain engine coolant from radiator. Refer to
CO-12, "Changing Engine Coolant".
CAUTION:
• Perform this step when engine is cold.
• Never spill engine coolant on drive belt.
2. Remove air duct and air duct (inlet). Refer to EM-26, "
Exploded View".
3. Remove battery and battery tray. Refer to SC-7, "
Removal and Installation".
4. Remove reservoir tank. Refer to CO-17, "
Component".
5. Disconnect radiator hose (upper). Refer to CO-17, "
Component".
6. Disconnect harness connector from engine coolant temperature sensor and block heater, if equipped.
7. Remove electric throttle control actuator water hoses.
8. Remove heater hoses.
9. Remove water outlet.
1. Engine coolant temperature sensor 2. Washer 3. Gasket
4. Radiator hose (upper) 5. Water outlet 6. Heater hose
7. Heater hose 8. Water hose 9. Water hose
10. Block heater (Canada only)
A. To electric throttle control actuator B. To heater core C. To radiator
: Engine front
AWBIA0788GB
Revision: January 20102010 Versa

CO-26
< ON-VEHICLE REPAIR >[HR16DE]
WATER OUTLET
10. Remove engine coolant temperature sens
or from water outlet, if necessary.
CAUTION:
• Handle carefully to avoid any shock to engine coolant temperature sensor.
• Replace the gasket with a new one.
11. Remove block heater from water outlet, if necessary (Canada only).
INSTALLATION
Installation is in the reverse order of removal.
NOTE:
Insert the block heater into the water outlet until the clip is fully locked (Canada only).
InspectionINFOID:0000000005398200
INSPECTION AFTER INSTALLATION
• Check that the reservoir tank cap is tightened.
• Check for leaks of engine coolant using suitable tool. Refer to CO-12, "
Inspection".
• Start and warm up the engine. Visually make sure that there is no leaks of engine coolant.
Revision: January 20102010 Versa

SERVICE DATA AND SPECIFICATIONS (SDS)CO-27
< SERVICE DATA AND SPECIFICATIONS (SDS) [HR16DE]
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Periodical Maintenance SpecificationINFOID:0000000005398202
ENGINE COOLANT CAPACITY (APPROXIMATE)
Unit: (US qt, Imp qt)
RadiatorINFOID:0000000005398203
RESERVOIR TANK CAP
Unit: kPa (bar, kg/cm2, psi)
RADIATOR
Unit: kPa (bar, kg/cm2, psi)
ThermostatINFOID:0000000005398204
Engine coolant capacity [With reservoir tank (“MAX” level)]
6.3 (6 5/8, 5 1/2)
Cap relief pressureStandard
78 - 98 (0.78 - 0.98, 0.8 - 1.0, 11 - 14)
Limit 59 (0.59, 0.6, 9)
Leakage testing pressure 157 (1.57, 1.6, 23)
Thermostat Standard
Valve opening temperature 80.5 - 83.5°C (177 - 182 °F)
Full-open valve lift amount 8.0 mm/95°C (0.315 in/203 °F)
Valve closing temperature 77°C (171 °F)
Revision: January 20102010 Versa

CO-28
< SERVICE INFORMATION >[MR18DE]
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint Syst
em (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005714017
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 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 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 inopera tive, 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 unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified 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 Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c 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 minu tes before performing any service.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
INFOID:0000000005398206
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecting 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 NATS, an electrically controlled steering lock mech-
anism 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.
Revision: January 20102010 Versa