2009 NISSAN LATIO service

ENGINE COOLANT
CO-35
< SERVICE INFORMATION >
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ENGINE COOLANT
Inspection INFOID:0000000004305234
LEVEL CHECK • Check if the reservoir tank engine coolant level is within the “MIN” to “MAX” range when engine is cool.
• Adjust the engine coolant level as necessary.
CHECKING COOLING SYSTEM FOR LEAKS To check for leaks, apply pressure to the cooling system using suit-
able tool and Tool.
WARNING:
Never remove the radiator cap wh en the engine is hot. Serious
burns could occur from high pressure coolant escaping from
the radiator.
CAUTION:
Higher pressure than specified may cause radiator damage.
Changing Engine Coolant INFOID:0000000004673021
WARNING:
• To avoid being scalded, do not change engine coolant when engine is hot.
• Wrap a thick cloth around radiator cap and carefully remove the cap. First, turn the cap a quarter of a
turn to release built-up pressure. Then turn the cap all the way.
CAUTION:
• Do not spill engine coolant on drive belt.
DRAINING ENGINE COOLANT 1. Open radiator drain plug (1) at the bottom of radiator, and then remove radiator cap.
• Front
When draining all of engine coolant in the system, open
water drain plug on cylinder block. Refer to EM-200 .
CAUTION:
• Perform this step when engine is cold.
• Do not spill engine coolant on drive belt.
2. Remove reservoir tank as necessary, and drain engi ne coolant and clean reservoir tank before installing.
Refer to CO-38, " Component " .
3. Check drained engine coolant for contaminants such as rust, corrosion or discoloration. If contaminated, flush the engine cooling system. SMA412B
Tool number : EG17650301 (J-33984-A)
Testing pressure : 157 kPa (1.6 kg/cm 2
, 23 psi) WBIA0568E
PBIC3799E

CO-36< SERVICE INFORMATION >
[MR18DE]
ENGINE COOLANT
REFILLING ENGINE COOLANT
1. Install the radiator drain plug. Install the reservoir tank and cylinder block drain plug, if removed for a total
system drain or for engine removal or repair.
• The radiator must be complete ly empty of coolant and water.
• Apply sealant to the threads of the cylinder bl ock drain plugs. Use Genuine High Performance
Thread Sealant or equivalent. Refer to GI-42, " Recommended Chemical Product and Sealant " .
2. If disconnected, reattach the upper radiator hose at the engine side.
3. Set the vehicle heater controls to the full HOT and heat er ON position. Turn the vehicle ignition ON with
the engine OFF as necessary to activate the heater mode.
4. Install the Tool by installing the radiator cap adapter onto the radiator neck opening. Then attach the gauge body assembly
with the refill tube and the venturi assembly to the radiator cap
adapter.
5. Insert the refill hose into the coolant mixture container that is placed at floor level. Make sure the ball valve is in the closed
position.
• Use Genuine NISSAN Long Life Anti-freeze coolant or
equivalent, mixed with distil led water or demineralized
water.
Refer to MA-15, " Anti-freeze Coolant Mixture Ratio " .
6. Install an air hose to the venturi assembly, the air pressure must be within specification.
CAUTION:
The compressed air supply must be equipped with an air dryer.
7. The vacuum gauge will begin to rise and there will be an audible hissing noise. During this process open the ball valve on the refill hose slightly. Coolant will be vi sible rising in the refill hose. Once the refill hose is
full of coolant, close the ball valve. This will purge any air trapped in the refill hose.
8. Continue to draw the vacuum until the gauge reaches 28 inches of vacuum. The gauge may not reach 28 inches in high altitude
locations, use the vacuum specifications based on the altitude
above sea level.
9. When the vacuum gauge has reached the specifi ed amount, disconnect the air hose and wait 20 seconds
to see if the system loses any vacuum. If the vacuum level drops, perform any necessary repairs to the
system and repeat steps 6 - 8 to bring the vacuum to the specified amount. Recheck for any leaks.
Radiator drain plug : Refer to
CO-38, " Component " .
Cylinder block drain plug : Refer to EM-200, " Disassembly and Assembly " .
Tool number : KV991J0070 (J-45695)
Engine coolant capacity
(with reservoir tank) : Refer to
MA-14, " Fluids
and Lubricants " .
Compressed air
supply pressure : 5.7 - 8.5 kPa (5.6 - 8.4 kg/cm
2
,
80 - 120 psi) LLIA0058E
Altitude above sea level Vacuum gauge reading
0 - 100 m (328 ft) : 28 inches of vacuum
300 m (984 ft) : 27 inches of vacuum
500 m (1,641 ft) : 26 inches of vacuum
1,000 m (3,281 ft) : 24 - 25 inches of vacuum LLIA0057E

RADIATOR
CO-39
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Do not remove radiator cap when the engine is
hot. Serious burns could occur from high-pressure
engine coolant escaping from radiator. Wrap a thick cl oth around the cap. Slowly turn it a quarter of a
turn to release built-up pressure. Carefully remove radiator cap by turning it all the way.
REMOVAL 1. Drain engine coolant from radiator. Refer to CO-35, " Changing Engine Coolant " .
CAUTION:
• Perform this step when engine is cold.
• Do not spill engine coolant on drive belt.
2. Remove engine undercover.
3. Remove air duct (inlet). Refer to EM-139 .
4. Remove reservoir tank as follows:
a. Disconnect reservoir tank hose.
b. Release the tab (A) in the direction shown by the arrow ( ).
c. Lift up while removing the reservoir tank hose, and remove it.
5. Disconnect harness connector from fan motor, and move harness aside.
6. Disconnect CVT or A/T fluid cooler hoses if equipped. • Install plug to avoid leakage of CVT or A/T fluid if equipped.
7. Remove radiator hoses (upper and lower).
8. Remove radiator core support cover. Refer to BL-19 .
9. Remove radiator core support (upper) bolts, bolts of stationary part on the radiator core support side and clip. Lift radiator from
radiator (upper) mount part of radiator core support (upper) (2).
10. Move radiator assembly (1) to the rearward direction of vehicle, and then lift it upward to remove.
CAUTION:
Do not damage or scratch A/C condenser if equipped and
radiator core when removing.
INSTALLATION Installation is in the reverse order of removal.
CAUTION:
Do not damage or scratch A/C condenser if eq uipped and radiator core when installing.
INSPECTION AFTER INSTALLATION • Check for leaks of engine coolant. Refer to CO-35, " Inspection " .
• Start and warm up engine. Visually check for leaks of engine coolant and CVT or A/T fluid if equipped. Refer
to CVT-196 or
AT-17 . PBIC3800E
PBIC3805E

CO-40< SERVICE INFORMATION >
[MR18DE]
RADIATOR
Checking Radiator Cap INFOID:0000000004305238
• Check valve seat of radiator cap.
- Check if valve seat is swollen to the extent that the edge of the plunger cannot be seen when watching it vertically from the top.
- Check if valve seat has no soil and damage.
• Pull negative-pressure valve to open it, and make sure that it is completely closed when released.
- Make sure that there is no dirt or damage on the valve seat of radi-
ator cap negative-pressure valve.
- Make sure that the valve operates properly in the opening and closing conditions.
• Check radiator cap relief pressure using Tool.
- When connecting the radiator cap to the tester, apply water or coolant to the cap seal surface.
- Replace the radiator cap if ther e is an abnormality in the negative-
pressure valve, or if the open-valve pr essure is outside of the standard values.
• Replace radiator cap if there it does not comply to specifications to the above three checks.
CAUTION:
When installing radiator cap, thoroughly wipe out the radiator filler neck to remove any waxy residue
or foreign material.
Checking Radiator INFOID:0000000004305239
Check radiator for mud or clogging. If necessary, clean radiator as follows.
• Be careful not to bend or damage radiator fins.
• When radiator is cleaned without removal, remove all surrounding parts such as cooling fan, radiator shroud and horns. Then tape harness and connectors to prevent water from entering.
1. Apply water by hose to the back side of the radiator core vertically downward.
2. Apply water again to all radiator core surface once per minute.
3. Stop washing if any stains no longer flow out from radiator.
4. Blow air into the back side of radiator core vertically downward. • Use compressed air lower than 490 kPa (4.9 bar, 5 kg/cm 2
, 71 psi) and keep distance more than 30 cm
(11.8 in).
5. Blow air again into all the radiator core surfaces once per minute until no water sprays out. PBIC2816E
SMA967B
Tool number : EG17650301 (J-33984-A)
Standard: 78 – 98 kPa (0.78 - 0.98 bar, 0.8 – 1.0 kg/cm 2
, 11
– 14 psi)
Limit: 59 kPa (0.59 bar, 0.6 kg/cm 2
, 9 psi) WBIA0570E

COOLING FAN
CO-41
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COOLING FAN
Component (Models with A/C) INFOID:0000000004305240
Component (Models without A/C) INFOID:0000000004305241
1. Fan motor cover 2. Fan motor 3. Cooling fan control module
4. Washer 5. Fan shroud 6. Washer
7. Cooling fan A. Apply on fan motor shaft Front PBIC4538E
1. Fan motor 2. Fan shroud 3. Cooling fan
A. Apply on fan motor shaft Front WBIA0786E

CO-48< SERVICE INFORMATION >
[MR18DE]
WATER OUTLET AND WATER CONTROL VALVE
• Place a thread (A) so that it is c aught in the valves of water control
valve (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.
NOTE:
The full-open valve lift amount standard temperature for water con-
trol valve is the reference value.
• After checking the full-open valve lift amount, lower the water tem- perature and check the valve closing temperature.
• If out of the specification, replace water control valve.
INSTALLATION
Installation is in the reverse order of removal.
• Use the following procedure to install the water control valve.
- Install water control valve while making rubber ring (1) groove fit to water control valve flange (A) around the whole circumference.
CAUTION:
Replace the rubber ring with a new one.
- While the mark (A) points to up, install water control valve (2) with frame center (B) facing straight upward into water outlet (1).
• Use the following procedure to install the water outlet.
- Install the water outlet to the cylinder head without disp lacing the water control valve from the valve position.
• Use the following procedure to install the water hoses. Valve opening temperature 93.5 - 96.5
°C (200 - 206 °F)
Full-open valve lift amount 8 mm/ 108 °C (0.315 in/ 226 °F)
Valve closing temperature 90 °C (194 °F) PBIC3314J
PBIC3317J
PBIC4700E

CVT
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CONTENTS
CVT
RE0F08A
SERVICE INFORMATION .. ..........................
9
INDEX FOR DTC ............................................ .....9
Alphabetical Index ............................................... ......9
DTC No. Index .................................................... ......9
PRECAUTIONS .............................................. ....11
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
11
Precaution Necessary fo r Steering Wheel Rota-
tion After Battery Disconnect ............................... ....
11
Precaution for On Board Diagnosis (OBD) System
of CVT and Engine .............................................. ....
12
Service After Replacing TCM and Transaxle As-
sembly ................................................................. ....
12
Removal and Installation Procedure for CVT Unit
Connector ............................................................ ....
13
Precaution ........................................................... ....14
Service Notice or Precaution ............................... ....15
PREPARATION .............................................. ....16
Special Service Tool ........................................... ....16
Commercial Service Tool .................................... ....16
CVT FLUID ..................................................... ....17
Checking CVT Fluid ............................................ ....17
Changing CVT Fluid ............................................ ....18
CVT Fluid Cooler Cleanin g .....................................18
CVT SYSTEM ... .............................................. ....22
Cross-Sectional View - RE0F08A ....................... ....22
Control System .................................................... ....23
Hydraulic Control System ........................................24
TCM Function ...................................................... ....24
CAN Communication ........................................... ....25
Input/Output Signal of TCM ................................. ....26
Line Pressure and Secondary Pressure Control . ....26
Shift Control ........................................................ ....27
Lock-up and Select Control ................................. ....28 Control Valve .......................................................
....29
ON BOARD DIAGNOSTIC (OBD) SYSTEM .... 30
Introduction .......................................................... ....30
OBD-II Function for CVT System ........................ ....30
One or Two Trip Detection Logic of OBD-II ......... ....30
OBD-II Diagnostic Trouble Code (DTC) .............. ....30
Malfunction Indicator Lamp (MIL) ............................31
TROUBLE DIAGNOSIS .................................... 33
DTC Inspection Priority Chart .............................. ....33
Fail-Safe .............................................................. ....33
How to Perform Trouble Diagnosis for Quick and
Accurate Repair ................................................... ....
34
CVT Electrical Parts Location .............................. ....39
Circuit Diagram .................................................... ....40
Inspections before Trouble Diagnosis ................. ....40
Road Test ............................................................ ....44
Check before Engine Is Started ........................... ....45
Check at Idle ........................................................ ....45
Cruise Test .......................................................... ....47
Vehicle Speed When Shifting Gears ................... ....49
TCM Terminal and Refere nce Value .......................49
CONSULT-III Function (TRANSMISSION) .......... ....51
Diagnosis Procedure withou t CONSULT-III ............59
DTC U1000 CAN COMMUNICATION LINE ..... 60
Description ........................................................... ....60
On Board Diagnosis Logic ................................... ....60
Possible Cause .................................................... ....60
DTC Confirmation Procedure .............................. ....60
Wiring Diagram - CVT - CAN ............................... ....61
Diagnosis Procedure ........................................... ....62
DTC U1010 TRANSMISSION CONTROL
MODULE (CAN) ................................................ 63
Description ........................................................... ....63
On Board Diagnosis Logic ................................... ....63
Possible Cause .................................................... ....63
DTC Confirmation Procedure .............................. ....63
Diagnosis Procedure ........................................... ....63

CVT
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Precaution Necessary fo
r Steering Wheel Rota-
tion After Battery Disconnect ............................... ..
189
Precaution for On Board Diagnosis (OBD) System
of CVT and Engine .............................................. ..
190
Service After Replacing TCM and Transaxle As-
sembly ................................................................. ..
190
Removal and Installation Procedure for CVT Unit
Connector ............................................................ ..
191
Precaution ........................................................... ..192
Service Notice or Precaution ............................... ..193
PREPARATION .............................................. ..195
Special Service Tool ........................................... ..195
Commercial Service Tool .................................... ..195
CVT FLUID ..................................................... ..196
Checking CVT Fluid ............................................ ..196
Changing CVT Fluid ............................................ ..197
CVT Fluid Cooler Cleanin g ...................................197
CVT SYSTEM ... .............................................. ..201
Cross-Sectional View - RE0F08B ....................... ..201
Control System .................................................... ..202
Hydraulic Control System ......................................203
TCM Function ...................................................... ..203
CAN Communication ........................................... ..204
Input/Output Signal of TCM ................................. ..204
Line Pressure and Secondary Pressure Control . ..205
Shift Control ........................................................ ..205
Lock-up and Select Control ................................. ..207
Control Valve ....................................................... ..207
ON BOARD DIAGNOSTIC (OBD) SYSTEM .. ..209
Introduction ......................................................... ..209
OBD-II Function for CVT System ........................ ..209
One or Two Trip Detection Logic of OBD-II ........ ..209
OBD-II Diagnostic Trouble Code (DTC) .............. ..209
Malfunction Indicator Lamp (MIL) ........................ ..210
TROUBLE DIAGNOSIS ................................. ..212
DTC Inspection Priority Chart ............................. ..212
Fail-Safe .............................................................. ..212
How to Perform Trouble Diagnosis for Quick and
Accurate Repair ........... .........................................
213
CVT Electrical Parts Location ............................. ..218
Circuit Diagram ................................................... ..219
Inspections before Trouble Diagnosis ................. ..219
Road Test ............................................................ ..223
Check before Engine Is Started ............................224
Check at Idle ....................................................... ..224
Cruise Test .......................................................... ..226
Vehicle Speed When Shifting Gears ................... ..228
TCM Terminal and Reference Value ................... ..228
CONSULT-III Function (TRANSMISSION) ......... ..230
Diagnosis Procedu re without CONSULT-III ........ ..237
DTC U1000 CAN COMMUNICATION LINE ... ..238
Description .......................................................... ..238
On Board Diagnosis Logic .................................. ..238
Possible Cause ................................................... ..238 DTC Confirmation Procedure ..............................
..238
Wiring Diagram - CVT - CAN ............................... ..239
Diagnosis Procedure ........................................... ..240
DTC U1010 TRANSMISSION CONTROL
MODULE (CAN) .............................................. 241
Description ........................................................... ..241
On Board Diagnosis Logic ................................... ..241
Possible Cause .................................................... ..241
DTC Confirmation Procedure .............................. ..241
Diagnosis Procedure ........................................... ..241
DTC P0703 STOP LAMP SWITCH CIRCUIT . 242
Description ........................................................... ..242
CONSULT-III Reference Va lue in Data Monitor
Mode .................................................................... ..
242
On Board Diagnosis Logic ................................... ..242
Possible Cause .................................................... ..242
DTC Confirmation Procedure .............................. ..242
Diagnosis Procedure ........................................... ..242
DTC P0705 PARK/NEUTRAL POSITION
SWITCH ........................................................... 244
Description ........................................................... ..244
CONSULT-III Reference Va lue in Data Monitor
Mode .................................................................... ..
244
On Board Diagnosis Logic ................................... ..244
Possible Cause .................................................... ..244
DTC Confirmation Procedure .............................. ..244
Wiring Diagram - CVT - PNP/SW ........................ ..245
Diagnosis Procedure ........................................... ..246
Component Inspection ......................................... ..247
DTC P0710 CVT FLUID TEMPERATURE
SENSOR CIRCUIT .......................................... 249
Description ........................................................... ..249
CONSULT-III Reference Va lue in Data Monitor
Mode .................................................................... ..
249
On Board Diagnosis Logic ................................... ..249
Possible Cause .................................................... ..249
DTC Confirmation Procedure .............................. ..249
Wiring Diagram - CVT - FTS ............................... ..250
Diagnosis Procedure ........................................... ..251
Component Inspection ......................................... ..252
DTC P0715 INPUT SPEED SENSOR CIR-
CUIT (PRI SPEED SENSOR) .......................... 254
Description ........................................................... ..254
CONSULT-III Reference Va lue in Data Monitor
Mode .................................................................... ..
254
On Board Diagnosis Logic ................................... ..254
Possible Cause .................................................... ..254
DTC Confirmation Procedure .............................. ..254
Wiring Diagram - CVT - PRSCVT ........................ ..255
Diagnosis Procedure ........................................... ..256
DTC P0720 VEHICLE SPEED SENSOR CVT
(SECONDARY SPEED SENSOR) .................. 258
Description ........................................................... ..258