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THERMOSTATCO-49
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*Power steering fluid, brake fluid, etc.
Fuel
LeakageLeakageLeakage
Exhaust gas —Leakage —
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WATER OUTLET AND WATER CONTROL VALVE
WATER OUTLET AND WATER CONTROL VALVE
ComponentINFOID:0000000005930820
A/T MODELS
PBIC4699E
1. Engine coolant temperature sensor 2. Rubber ring
3. Water control valve
4. Gasket 5. Water hose 6. Gasket
7. Water hose 8. Water outlet 9. Heater hose
10. Heater hose 11. Radiator hose (upper) Front
A. To heater B. To electric throttle control actuator C. To radiator
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CVT MODELS
Removal and InstallationINFOID:0000000005930821
REMOVAL
1. Drain engine coolant f NISSAN LATIO 2011 Service Repair Manual WATER OUTLET AND WATER CONTROL VALVECO-51
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Removal and InstallationINFOID:0000000005930821
REMOVAL
1. Drain engine coolant f](/manual-img/5/57357/w960_57357-1050.png)
WATER OUTLET AND WATER CONTROL VALVECO-51
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Removal and InstallationINFOID:0000000005930821
REMOVAL
1. Drain engine coolant from radiator. Refer to
CO-36, "Changing Engine Coolant".
CAUTION:
• Perform this step when engine is cold.
• Never spill engine coolant on drive belt.
2. Remove battery and battery tray. Refer to SC-7, "
Removal and Installation".
3. Remove air cleaner and air duct. Refer to EM-135, "
Component".
4. Remove radiator hose (lower) from engine. Refer to CO-40, "
Component".
5. Remove heater hoses and water hoses.
6. Remove CVT warmer hose (CVT models only).
7. Remove water outlet.
8. Remove water control valve.
9. Remove engine coolant temperature sensor from the water outlet, if necessary. CAUTION:
• Handle carefully to avoid any shock to engine coolant temperature sensor.
• Replace the gasket with a new one.
INSPECTION AFTER REMOVAL
AWBIA0962ZZ
1. Engine coolant temperature sensor 2. Rubber ring 3. Water control valve
4. Gasket 5. Water hose 6. Gasket
7. Water hose 8. Water outlet 9. Heater hose
10. Heater hose 11. CVT warmer hose 12. Radiator hose (upper)
Front A. To heater B. To electric throttle control actuator
C. To radiator D. To CVT fluid warmer
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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) fille NISSAN LATIO 2011 Service Repair Manual CO-52
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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) fille](/manual-img/5/57357/w960_57357-1051.png)
CO-52
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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 making sure rubber ring (1) groove fits
securely to water control valve flange (A).
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. Standard : Refer to
CO-55, "
Standard and Limit"
PBIC3314J
PBIC3317J
PBIC4700E
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- Install water hoses (3),(5) as shown.
• Electric throttle control actuator (1)
• Clamp NISSAN LATIO 2011 Service Repair Manual WATER OUTLET AND WATER CONTROL VALVECO-53
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- Install water hoses (3),(5) as shown.
• Electric throttle control actuator (1)
• Clamp](/manual-img/5/57357/w960_57357-1052.png)
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- Install water hoses (3),(5) as shown.
• Electric throttle control actuator (1)
• Clamp (2)
• Water outlet (4)
• Paint mark (A)
• Clamp shall not interfere with the bulged area (B)
• : Engine front
- Water Hoses (CVT Models)
- Install water hoses (3),(5) as shown.
• Electric throttle control actuator (1)
• Clamp (2)
• Water outlet (4)
• Paint mark (A)
• Clamp shall not interfere with the bulged area (B)
• : Engine front
InspectionINFOID:0000000006413350
INSPECTION AFTER INSTALLATION
• Before starting engine, check oil/fluid levels incl
uding engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-14, "
Fluids and Lubricants".
• Use procedure below to check for fuel leakage.
• Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak- age at connection points.
• Start engine. With engine speed increased, check again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration.
PBIC4703E
WBIA0821E
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WATER OUTLET AND WATER CONTROL VALVE
• Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gas, or any oils/fluids including
engine oil and engine coolant.
• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec-
ified level, if necessary.
• Summary of the inspection items:
*Power steering fluid, brake fluid, etc. Item
Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeakage Level
Engine oil LevelLeakage Level
Transmission/
transaxle fluid A/T and CVT Models
LeakageLevel/Leakage Leakage
M/T Models Level/Leakage LeakageLevel/Leakage
Other oils and fluids* LevelLeakage Level
Fuel LeakageLeakage Leakage
Exhaust gas —Leakage —
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SERVICE DATA AND SPECIFICATIONS (SDS)CO-55
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SERVICE DATA AND SPECIFICATIONS (SDS)
Standard and LimitINFOID:0000000005930822
CAPACITY
Unit: (US qt, lmp qt)
THERMOSTAT
WATER CONTROL VALVE
RADIATOR
Unit: kPa (bar, kg/cm2, psi)
Engine coolant capacity (with reservoir tank at “MAX” level)
Approx. 6.8 (7 1/4, 6)
Valve opening temperature80.5 - 83.5°C (177 - 182 °F)
Full-open valve lift amount 8 mm/ 95°C (0.315 in/ 203 °F)
Valve closing temperature 77°C (171 °F)
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)
Cap relief pressure Standard
78 - 98 (0.78 - 0.98, 0.8 - 1.0, 11- 14)
Limit 59 (0.59, 0.6, 9)
Leakage test pressure 157 (1.57, 1.6, 23)
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CVT-1
TRANSMISSION/TRANSAXLE
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SECTION CVT
A
B
CVT
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CONTENTS
CVT
RE0F08B
SERVICE INFORMATION .. ..........................
5
INDEX FOR DTC ............................................ .....5
Alphabetical Index ............................................... ......5
DTC No. Index ..........................................................5
PRECAUTIONS ...................................................7
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
7
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
7
Precaution for On Board Diagnosis (OBD) System
of CVT and Engine ....................................................
8
Service After Replacing TCM and Transaxle As-
sembly .......................................................................
8
Removal and Installation Procedure for CVT Unit
Connector ............................................................ ......
9
Precaution ...............................................................10
Service Notice or Precaution ...................................11
ATFTEMP COUNT Conversion Table ....................11
PREPARATION .............................................. ....13
Special Service Tool ........................................... ....13
Commercial Service Tool ........................................13
CVT FLUID .........................................................14
Checking CVT Fluid ............................................ ....14
Changing CVT Fluid ................................................15
CVT Fluid Cooler Cleaning .....................................15
CVT SYSTEM ................................................. ....19
Cross-Sectional View - RE0F08B ....................... ....19
Control System .................................................... ....20
Hydraulic Control System ........................................21
TCM Function ...................................................... ....21
CAN Communication ...............................................22
Input/Output Signal of TCM .....................................22
Line Pressure and Secondary Pressure Control .....23
Shift Control ............................................................23
Lock-up and Select Control .....................................25
Control Valve ....................................................... ....25
ON BOARD DIAGNOSTIC (OBD) SYSTEM ....27
Introduction ..............................................................27
OBD-II Function for CVT System ............................27
One or Two Trip Detection Logic of OBD-II .............27
OBD-II Diagnostic Trouble Code (DTC) ..................27
Malfunction Indicator Lamp (MIL) ............................28
TROUBLE DIAGNOSIS ....................................30
DTC Inspection Priority Chart ..................................30
Fail-Safe ..................................................................30
How to Perform Trouble Diagnosis for Quick and
Accurate Repair .......................................................
31
CVT Electrical Parts Location ..................................36
Circuit Diagram ........................................................37
Inspections before Trouble Diagnosis .....................37
Road Test ................................................................41
Check before Engine Is Started ...............................42
Check at Idle ............................................................42
Cruise Test ..............................................................43
Vehicle Speed When Shifting Gears .......................45
TCM Terminal and Reference Value .......................46
CONSULT-III Function (TRANSMISSION) .......... ....48
Diagnosis Procedure without CONSULT-III ............55
U1000 CAN COMM CIRCUIT ...........................56
Description ........................................................... ....56
On Board Diagnosis Logic .......................................56
Possible Cause ........................................................56
DTC Confirmation Procedure ..................................56
Wiring Diagram - CVT - CAN ...................................57
Diagnosis Procedure ...............................................58
U1010 CONTROL UNIT (CAN) .........................59
Description ...............................................................59
On Board Diagnosis Logic .......................................59
Possible Cause ........................................................59
DTC Confirmation Procedure ..................................59
Diagnosis Procedure ...............................................59
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