2011 NISSAN TIIDA cooling

CO-40
< SERVICE INFORMATION >[MR18DE]
RADIATOR
• Use compressed air lower than 490 kPa (4.9 bar, 5 kg/cm2, 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.
ComponentINFOID:0000000005930810
Removal and InstallationINFOID:0000000005930811
WARNING:
1. Reservoir tank cap 2. Reservoir tank 3. Radiator hose (upper)
4. Mounting rubber (upper) 5. Radiator cap6. Reservoir tank hose
7. Radiator 8. A/T fluid cooler hose9. Mounting rubber (lower)
10. O-ring 11. Radiator drain plug12. A/T fluid cooler hose
13. Radiator hose (lower) 14. Cooling fan assemblyA. To water outlet
B. To A/T C. To water intletD. M/T models
E. Models with A/C
AWBIA0961ZZ
Revision: May 2010 2011 Versa

RADIATORCO-41
< SERVICE INFORMATION > [MR18DE]
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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. Remove engine under cover. Refer to EI-15, "Removal and Installation".
2. Drain engine coolant from radiator. Refer to CO-36, "
Changing Engine Coolant".
CAUTION:
• Perform this step when engine is cold.
• Do not spill engine coolant on drive belt.
3. Remove air duct (inlet). Refer to EM-135
.
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 cooling fan assembly.
10. 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).
11. 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.
InspectionINFOID:0000000006413348
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.
PBIC3800E
PBIC3805E
Revision: May 2010 2011 Versa

CO-42
< SERVICE INFORMATION >[MR18DE]
RADIATOR
• 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 —
Revision: May 2010 2011 Versa

COOLING FANCO-43
< SERVICE INFORMATION > [MR18DE]
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COOLING FAN
Component (Models with A/C)INFOID:0000000005930812
Component (Models without A/C)INFOID:0000000005930813
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: May 2010 2011 Versa

CO-44
< SERVICE INFORMATION >[MR18DE]
COOLING FAN
Removal and Installation
INFOID:0000000005930814
REMOVAL
1. Partially drain engine coolant from radiator. Refer to CO-36, "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-135, "
Component".
3. Remove reservoir tank. Refer to CO-40, "
Component".
4. Disconnect radiator hose (upper) at radiator side. Refer to CO-40, "
Component".
5. Disconnect harness connectors from fan motor, and move harness 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-895, "
On Board Diagnosis Logic".
CAUTION:
Be careful not to damage or scratch the radiator core.
Disassembly and AssemblyINFOID:0000000005930815
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: May 2010 2011 Versa

CO-48
< SERVICE INFORMATION >[MR18DE]
THERMOSTAT
INSTALLATION
Installation is in the reverse order of removal.
• Use the following procedure to install the thermostat.
- Install thermostat making sure rubber ring (1) groove fits securely
to thermostat flange (A).
CAUTION:
Replace the rubber ring with a new one.
- Install thermostat (1) into the thermostat housing (2) with jiggle valve (A) facing upwards.
• Use the following procedure to install the thermostat housing.
- Securely insert the rubber ring into the mating groove of thermostat housing and install it. CAUTION:
Replace the rubber ring with a new one.
- Install the thermostat housing to the cylinder block without displacing the gasket from the gasket position.
InspectionINFOID:0000000006413349
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, che ck again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration.
• 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:
PBIC3315J
PBIC3548J
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
Revision: May 2010 2011 Versa

CO-54
< SERVICE INFORMATION >[MR18DE]
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 —
Revision: May 2010 2011 Versa

EC-2
System Diagram ....................................................56
System Description .................................................56
Component Parts Location ...................................57
Component Description ..........................................61
AIR CONDITIONING CUT CONTROL ..............63
System Diagram .................................................. ...63
System Description .................................................63
Component Parts Location ...................................64
Component Description ..........................................68
CAN COMMUNICATION ...................................70
System Description .................................................70
COOLING FAN CONTROL ...............................71
System Diagram .................................................. ...71
System Description .................................................71
Component Parts Location ...................................73
Component Description ..........................................77
EVAPORATIVE EMISSION SYSTEM ...............79
System Diagram .................................................. ...79
System Description .................................................79
Component Parts Location ...................................83
Component Description .........................................87
INTAKE VALVE TIMING CONTROL .................89
System Diagram .................................................. ...89
System Description .................................................89
Component Parts Location ...................................90
Component Description ..........................................94
ON BOARD DIAGNOSTIC (OBD) SYSTEM .....95
Diagnosis Description .......................................... ...95
GST (Generic Scan Tool) .......................................95
DIAGNOSIS SYSTEM (ECM) ............................96
DIAGNOSIS DESCRIPTION .................................. ...96
DIAGNOSIS DESCRIPTION : 1st Trip Detection
Logic and Two Trip Detection Logic .......................
96
DIAGNOSIS DESCRIPTION : DTC and Freeze
Frame Data .............................................................
96
DIAGNOSIS DESCRIPTION : Counter System .....97
DIAGNOSIS DESCRIPTION : Driving Pattern ......100
DIAGNOSIS DESCRIPTION : System Readiness
Test (SRT) Code ................................................. ..
101
DIAGNOSIS DESCRIPTION : Permanent Diag-
nostic Trouble Code (Permanent DTC) .................
102
DIAGNOSIS DESCRIPTION : Malfunction Indica-
tor Lamp (MIL) ..................................................... ..
103
On Board Diagnosis Function ................................103
CONSULT-III Function ..........................................106
COMPONENT DIAGNOSIS .......................114
TROUBLE DIAGNOSIS - SPECIFICATION
VALUE ............................................................ .
114
Description ........................................................... ..114
Component Function Check ..................................114
Diagnosis Procedure .............................................115
TROUBLE DIAGNOSIS FOR INTERMITTENT
INCIDENT .........................................................
122
Description ........................................................... .122
Diagnosis Procedure .............................................122
POWER SUPPLY AND GROUND CIRCUIT ....123
Wiring Diagram .................................................... .123
Diagnosis Procedure .............................................123
Ground Inspection .................................................127
U0101 CAN COMM CIRCUIT ...........................128
Description ........................................................... .128
DTC Logic .............................................................128
Wiring Diagram .....................................................129
Diagnosis Procedure .............................................129
U0140 CAN COMM CIRCUIT ...........................130
Description ........................................................... .130
DTC Logic .............................................................130
Wiring Diagram .....................................................131
Diagnosis Procedure .............................................131
U1001 CAN COMM CIRCUIT ...........................132
Description ........................................................... .132
DTC Logic .............................................................132
Wiring Diagram .....................................................133
Diagnosis Procedure .............................................133
P0011 IVT CONTROL ......................................134
DTC Logic ............................................................ .134
Diagnosis Procedure .............................................135
Component Inspection ..........................................136
P0031, P0032 A/F SENSOR 1 HEATER ..........138
Description ........................................................... .138
DTC Logic .............................................................138
Wiring Diagram .....................................................139
Diagnosis Procedure .............................................139
Component Inspection ..........................................141
P0037, P0038 HO2S2 HEATER .......................142
Description ........................................................... .142
DTC Logic .............................................................142
Wiring Diagram .....................................................143
Diagnosis Procedure .............................................143
Component Inspection ..........................................145
P0075 IVT CONTROL SOLENOID VALVE ......146
Description ........................................................... .146
DTC Logic .............................................................146
Wiring Diagram .....................................................147
Diagnosis Procedure .............................................147
Component Inspection ..........................................148
P0101 MAF SENSOR .......................................150
Description ........................................................... .150
DTC Logic .............................................................150
Component Function Check .................................151
Wiring Diagram .....................................................153
Diagnosis Procedure .............................................153
Component Inspection ..........................................155
Revision: May 2010 2011 Versa