2007 NISSAN LATIO Therm

BCM (BODY CONTROL MODULE)
BCS-13
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BCS
Revision: June 20062007 Versa
19 BRRemote keyless entry
receiver (power sup-
ply)Output OFF Ignition switch OFF
20 GRemote keyless entry
receiver signal (sig-
nal)Input OFFStand-by (keyfob buttons
released)
When remote keyless entry
receiver receives signal from
keyfob (keyfob buttons
pressed)
21 P NATS antenna amp.Input/
OutputOFF →
ONIgnition switch (OFF → ON)Just after turning ignition switch
ON: Pointer of tester should
move for approx. 1 second, then
return to battery voltage.
23 RSecurity indicator
lampOutput OFFGoes OFF → illuminates
(Every 2.4 seconds)Battery voltage → 0V
25 LG NATS antenna amp.Input/
OutputOFF →
ONIgnition switch (OFF → ON)Just after turning ignition switch
ON: Pointer of tester should
move for approx. 1 second, then
return to battery voltage.
26 GR Thermo control amp. Input ON A/C switch ON
27 OCompressor ON sig-
nalInput ONA/C switch OFF 5V
A/C switch ON 0V
28 P Front blower monitor Input ONFront blower motor OFF Battery voltage
Front blower motor ON 0V
29 L Hazard switch Input OFFON 0V
OFF 5V
30
*1VBack door open out-
putOutput —Back door open (switch
closed)0V
Back door closed (switch
open)5V
30
*2VBack door opener
switchInput —All doors locked (SW OFF) Battery voltage
All doors unlocked (SW ON) 0V TerminalWire
colorSignal nameSignal
input/
outputMeasuring condition
Reference value or waveform
(Approx.) Ignition
switchOperation or condition
LIIA1893E
LIIA1894E
LIIA1895E
ZJIA0719J

BODY REPAIR
BL-255
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Handling Precautions for PlasticsEIS009AL
HANDLING PRECAUTIONS FOR PLASTICS
1. When repairing and painting a portion of the body adjacent to plastic parts, consider their characteristics
(influence of heat and solvent) and remove them if necessary or take suitable measures to protect them.
2. Plastic parts should be repaired and painted using methods suiting the materials
, characteristics.
Abbre-
viationMaterial nameHeat resisting
temperature
°C (°F)Resistance to gasoline and
solventsOther cautions
PE Polyethylene 60 (140)Gasoline and most solvents are
harmless if applied for a very
short time (wipe up quickly).Flammable
PVC Polyvinyl Chloride 80 (176) Same as above.Poison gas is emitted
when burned.
EPM/
EPDMEthylene Propylene (Diene) rub-
ber80 (176) Same as above. Flammable
TPO/
TPRThermoplastic Olefine/
Thermoplastic Rubber80 (176) Same as above. Flammable
PP Polypropylene 90 (194) Same as above.Flammable, avoid bat-
tery acid.
UP Polyester thermoset 90 (194) Same as above. Flammable
PS Polystyrene 80 (176) Avoid solvents. Flammable
ABSAcrylonitrile Butadiene Styrene
resin80 (176) Avoid gasoline and solvents.
AES Acrylonitrile Ethylene Styrene 80 (176) Same as above.
PMMA Polymethyl Methacrylate 85 (185) Same as above.
AAS Acrylonitrile Acrylic Styrene 85 (185) Same as above.
AS Acrylonitrile Styrene 85 (185) Same as above.
EVA Polyvinyl Ethyl Acetate 90 (194) Same as above.
ASA Acrylonitrile Styrene Acrylate 100 (222) Same as above. Flammable
PPO/
PPEPolyphenylene Oxide/
Polyphenylene Ether110 (230) Same as above.
PC Polycarbonate 120 (248) Same as above.
PAR Polyacrylate 180 (356) Same as above.
L-
LDPELenear Low Density PE 45 (100)Gasoline and most solvents are
harmless.Flammable
PUR Polyurethane 90 (194) Same as above.
TPU Thermoplastic Urethane 110 (230) Same as above.
PPC Polypropylene Composite 115 (239) Same as above. Flammable
POM Polyacetal 120 (248) Same as above. Avoid battery acid.
PBT+P
CPolybutylene Terephtha-
late+Polycarbonate120 (248) Same as above. Flammable
PA Polyamide (Nylon) 140 (284) Same as above.Avoid immersing in wa-
ter.
PBT Polybutylene Terephthalate 140 (284) Same as above.
FRP Fiber Reinforced Plastics 170 (338) Same as above. Avoid battery acid.
PET Polyethylene Terephthalate 180 (356) Same as above.
PEI Polyetherimide 200 (392) Same as above.

BODY REPAIR
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Read the Following Precautions When Repairing HSS:
1. Additional points to consider

The repair of reinforcements (such as side members) by heat-
ing is not recommended since it may weaken the component.
When heating is unavoidable, do not heat HSS parts above
550°C (1,022°F).
Verify heating temperature with a thermometer.
(Crayon-type and other similar type thermometer are appro-
priate.)

When straightening body panels, use caution in pulling any
HSS panel. Because HSS is very strong, pulling may cause
deformation in adjacent portions of the body. In this case,
increase the number of measuring points, and carefully pull
the HSS panel.

When cutting HSS panels, avoid gas (torch) cutting if possi-
ble. Instead, use a saw to avoid weakening surrounding areas
due to heat. If gas (torch) cutting is unavoidable, allow a mini-
mum margin of 50 mm (1.97in).

When welding HSS panels, use spot welding whenever possi-
ble in order to minimize weakening surrounding areas due to
heat.
If spot welding is impossible, use M.I.G. welding. Do not use
gas (torch) welding because it is inferior in welding strength.
PIIA0115E
PIIA0116E
PIIA0117E
PIIA0144E

CO-1
ENGINE COOLING SYSTEM
B ENGINE
CONTENTS
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SECTION CO
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Revision: June 20062007 Versa PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 2
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect .......................................... 2
OPERATION PROCEDURE ................................. 2
Precautions for Liquid Gasket .................................. 2
REMOVAL OF LIQUID GASKET SEALING .......... 2
LIQUID GASKET APPLICATION PROCEDURE ..... 3
PREPARATION ........................................................... 4
Special Service Tools ............................................... 4
Commercial Service Tools ........................................ 4
OVERHEATING CAUSE ANALYSIS .......................... 5
Troubleshooting Chart .............................................. 5
COOLING SYSTEM .................................................... 7
Cooling Circuit .......................................................... 7
ENGINE COOLANT .................................................... 8
Inspection ................................................................. 8
LEVEL CHECK ..................................................... 8
CHECKING COOLING SYSTEM FOR LEAKS ..... 8
Changing Engine Coolant ........................................ 8
DRAINING ENGINE COOLANT ........................... 8
REFILLING ENGINE COOLANT .......................... 8
FLUSHING COOLING SYSTEM ........................... 9
RADIATOR .................................................................11
Components ............................................................11
Removal and Installation ........................................ 12
REMOVAL ........................................................... 12
INSTALLATION ................................................... 12
INSPECTION AFTER INSTALLATION ............... 12
Checking Radiator Cap .......................................... 13
Checking Radiator .................................................. 13
COOLING FAN ......................................................... 15
Components (Models With A/C) ............................. 15Components (Models Without A/C) ........................ 15
Removal and Installation ........................................ 16
REMOVAL ........................................................... 16
INSTALLATION ................................................... 16
DISASSEMBLY AND ASSEMBLY .......................... 16
DISASSEMBLY ................................................... 16
INSPECTION AFTER DISASSEMBLY ............... 16
ASSEMBLY ......................................................... 16
WATER PUMP .......................................................... 17
Components ........................................................... 17
Removal and Installation ........................................ 17
REMOVAL ........................................................... 17
INSPECTION AFTER REMOVAL ....................... 17
INSTALLATION ................................................... 17
INSPECTION AFTER INSTALLATION ................ 17
THERMOSTAT .......................................................... 18
Components ........................................................... 18
Removal and Installation ........................................ 18
REMOVAL ........................................................... 18
INSPECTION AFTER REMOVAL ....................... 18
INSTALLATION ................................................... 19
INSPECTION AFTER INSTALLATION ................ 19
WATER OUTLET AND WATER CONTROL VALVE ... 20
Components ........................................................... 20
Removal and Installation ........................................ 20
REMOVAL ........................................................... 20
INSPECTION AFTER REMOVAL ....................... 21
INSTALLATION ................................................... 21
INSPECTION AFTER INSTALLATION ................ 22
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 23
Standard and Limit .................................................. 23
CAPACITY ........................................................... 23
THERMOSTAT .................................................... 23
WATER CONTROL VALVE ................................. 23
RADIATOR .......................................................... 23

OVERHEATING CAUSE ANALYSIS
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OVERHEATING CAUSE ANALYSISPFP:00012
Troubleshooting ChartEBS00T78
Symptom Check items
Cooling sys-
tem parts
malfunctionPoor heat transferWater pump malfunction Worn or loose drive belt
— Thermostat stuck closed Thermostat
Damaged finsDust contamination or
paper clogging
Physical damage
Clogged radiator cooling
tubeExcess foreign material
(rust, dirt, sand, etc.)
Reduced air flowCooling fan does not oper-
ate
Fan assembly— High resistance to fan rota-
tion
Damaged fan blades
Damaged radiator shroud — —
Improper engine coolant
mixture ratio—
—
Engine coolant viscosity—
Poor engine coolant quality — —
Insufficient engine coolantEngine coolant leaksCooling hoseLoose clamp
Cracked hose
Water pump Poor sealing
Radiator capLoose
Poor sealing
RadiatorO-ring for damage, deterio-
ration or improper fitting
Cracked radiator tank
Cracked radiator core
Reservoir tank Cracked reservoir tank
Overflowing reservoir tankExhaust gas leaks into
cooling systemCylinder head deterioration
Cylinder head gasket dete-
rioration

ENGINE COOLANT
CO-9
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Revision: June 20062007 Versa

If water drain plug on cylinder block is removed, close and tighten it. Refer to EM-77, "CYLIN-
DER BLOCK" .
CAUTION:
Be sure to clean radiator drain plug and install with new O-ring. Refer to CO-11, "
Components" .
3. Make sure that each hose clamp has been firmly tightened.
4. Remove air duct assembly. Refer to EM-16, "
AIR CLEANER AND AIR DUCT" .
5. Disconnect heater hose (1) at position ( ) as shown.

Front

Reposition heater hose as high as possible.
6. Fill radiator and reservoir tank to specified level.

Pour engine coolant through engine coolant filler neck
slowly of less than 2 (2 1/8 US qt, 1-3/4 lmp qt) a minute
to allow air in system to escape.

Use NISSAN Genuine Engine Coolant or equivalent
mixed with water (distilled or demineralized). Fill cooling
system to specification. Refer to MA-11, "
RECOM-
MENDED FLUIDS AND LUBRICANTS".

When engine coolant overflows disconnected heater hose,
connect heater hose, and continue filling the engine coolant, if
heater hose is disconnected.
7. Install radiator cap.
8. Install air duct assembly. Refer to EM-16, "
AIR CLEANER AND AIR DUCT" .
9. Warm up until opening thermostat. Standard for warming-up time is approximately 10 minutes at 3,000
rpm.

Make sure thermostat opening condition by touching radiator hose (lower) to see a flow of warm water.
CAUTION:
Watch water temperature gauge so as not to overheat the engine.
10. Stop engine and cool down to less than approximately 50°C (122°F).

Cool down using fan to reduce the time.

If necessary, refill radiator up to filler neck with engine coolant.
11. Refill reservoir tank to “MAX” level line with engine coolant.
12. Repeat steps 6 through 11 two or more times with radiator cap installed until engine coolant level no
longer drops.
13. Check cooling system for leaks with engine running.
14. Warm up engine, and check for sound of engine coolant flow while running engine from idle up to 3,000
rpm with heater temperature controller set at several position between “COOL” and “WARM”.

Sound may be noticeable at heater unit.
15. Repeat step 14 three times.
16. If sound is heard, bleed air from cooling system by repeating steps 6 through 11 until engine coolant level
no longer drops.
FLUSHING COOLING SYSTEM
1. Install reservoir tank if removed. Refer to CO-11, "RADIATOR" .
2. Install radiator drain plug.
PBIC3802E
SM A18 2B

CO-18Revision: June 2006
THERMOSTAT
2007 Versa
THERMOSTATPFP:21200
ComponentsEBS00U6H
Removal and InstallationEBS00U6I
REMOVAL
1. Drain engine coolant. Refer to CO-8, "DRAINING ENGINE COOLANT" .
2. Remove water inlet.
3. Remove thermostat.
4. Remove water pump. Refer to CO-17, "
WAT ER PUM P" .
5. Remove thermostat housing.
INSPECTION AFTER REMOVAL

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 maximum valve lift amount, lower the water
temperature and check the valve closing temperature.
1. Thermostat housing 2. Water hose (models with oil cooler) 3. Radiator hose (lower)
4. Water inlet 5. Thermostat 6. Rubber ring
7. Gasket A. To oil cooler B. To radiator
Engine front
PBIC4485E
PBIC3314J

THERMOSTAT
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If out of the specification, replace thermostat.
INSTALLATION
Installation is in the reverse order of removal.
Thermostat
CAUTION:
Replace the rubber ring with a new one.

Install thermostat while making rubber ring (1) groove fit to ther-
mostat flange (A) around the whole circumference.

Install thermostat (1) into the thermostat housing (2) with jiggle
valve (A) facing upwards.
Thermostat Housing
CAUTION:
Replace the rubber ring with a new one.

Securely insert the rubber ring into the mating groove of thermostat housing and install it.

Install the thermostat housing to the cylinder block without displacing the gasket from the gasket position.
INSPECTION AFTER INSTALLATION

Check for leaks of engine coolant. Refer to CO-8, "CHECKING COOLING SYSTEM FOR LEAKS" .

Start and warm up the engine. Visually check for engine coolant leaks.
ItemsThermostat
Valve opening temperature 80.5 - 83.5°C (177 - 182°F)
Maximum valve lift 8 mm/ 95°C (0.315 in/ 203°F)
Valve closing temperature 77°C (171°F)
PBIC3315J
PBIC3548J