2007 NISSAN TIIDA Fan system

CO-30
< SYMPTOM DIAGNOSIS >[MR18DE]
OVERHEATING CAUSE ANALYSIS
SYMPTOM DIAGNOSIS
OVERHEATING CAUSE ANALYSIS
Troubleshooting ChartINFOID:0000000001337836
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 pa-
per 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 cool-
ing systemCylinder head deterioration
Cylinder head gasket deteri-
oration

CO-36
< ON-VEHICLE MAINTENANCE >[MR18DE]
ENGINE COOLANT
1. Install reservoir tank if removed.
2. Install radiator drain plug.
If water drain plug on cylinder block is removed, install and tighten it. Refer to EM-211, "
Compo-
nent".
CAUTION:
Be sure to clean radiator drain plug and install with new O-ring. Refer to CO-40, "
Component".
3. Make sure that each hose clamp has been firmly tightened.
4. Remove air duct assembly. Refer to EM-154, "
Component".
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-19, "
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-154, "
Component".
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.
2. Install radiator drain plug.
If water drain plug on cylinder block is removed, close and tighten it. Refer to EM-211, "
Compo-
nent".
PBIC3802E
SMA182B

OVERHEATING CAUSE ANALYSIS
CO-53
< SYMPTOM DIAGNOSIS >[K9K]
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SYMPTOM DIAGNOSIS
OVERHEATING CAUSE ANALYSIS
Troubleshooting ChartINFOID:0000000001381581
Symptom Check items
Cooling sys-
tem parts
malfunctionPoor heat transferWater pump malfunction Worn timing belt
— Thermostat stuck closed —
Damaged finsDust contamination or pa-
per clogging
Mechanical 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 coolant mixture
ratio———
Poor coolant quality — — —
Insufficient coolantCoolant leaksCooling hoseLoose clamp
Cracked hose
Water pump Poor sealing
Reservoir tank 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 cool-
ing systemCylinder head deterioration
Cylinder head gasket deteri-
oration

ENGINE COOLANT
CO-59
< ON-VEHICLE MAINTENANCE >[K9K]
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Put a cloth under the air relief plug to prevent engine coolant from dampening the crankshaft
position sensor.
Pour coolant to the MAX level line of the reservoir tank at
a rate of 2 liter (1-3/4 lamp qt.)/min. or lower.
3. Close the air relief plug.
CAUTION:
If the filling rate is too fast, this could lead to air being
mixed in the coolant. Be sure to fill the coolant slowly
according to the rate indicated above.
Use Insane Genuine Engine Coolant or equivalent mixed
with water (distilled or demineralized). Refer to MA-21,
"Engine Coolant Mixture Ratio".
4. Start engine without closing reservoir tank cap and keep engine racing at 1,500 rpm for about 2-3 minutes.
If necessary, pour engine coolant up to MAX level.
If coolant overflows reservoir tank hole, install filler cap.
Watch engine coolant temperature gauge so as not overheat the engine.
WARNING:
 Be careful not to be scaled with hot engine coolant or vacuum pump when operating.
 Radiator fan blade can start at any time and cause personal injuries.
5. Turn off the engine and loosen air relief plug until coolant spills from air relief hole.
6. Close the air relief plug and run the engine at 2,000 rpm until the upper hose becomes hot and radiator
fan operates. Leave the engine running approximately 5 minutes at idle speed and check for sound of
coolant flow while running engine from idle up to 3,000 rpm.
 Sound may be noticeable at heater water cock.
7. If sound is heard, bleed air from cooling system by repeating steps 4 to 6 until coolant level no longer
drops.
 Check the radiator lower hose for any signs of leakage.
8. Turn off the engine and let it cool down.
 Cool down using a fan to reduce the time.
9. After cooling period, loosen the air relief plug and check if coolant spills from the air relief hole. if not,
remove the air relief plug until the coolant spills, and then close the relief air plug. Bleed air from cooling
system by repeating steps 6 to 10 until the coolant spills immediately.
10. Check the engine coolant level when engine is cool and refill to MAX level line if the level is lower.
 Clean excess coolant from engine.
11. Check that the reservoir tank cap is tightened.
FlushingINFOID:0000000001381588
1. Install reservoir tank if removed.
If water drain plug on cylinder block is removed, close and tighten it. Refer to EM-314, "
Exploded
View".
2. Fill reservoir tank with water until water spills from the air relief hole, then close air relief plug. Reinstall
reservoir tank cap.
3. Run engine and warm it up to normal operating temperature.
4. Rev engine two or three times under no-load.
5. Stop engine and wait until it cools down.
6. Drain water.
7. Repeat steps 1 through 6 until clear water begins to drain from radiator.
8. Blow compressed air into cooling circuit through the reservoir tank valve hole to drain all the water.
JPBIA0306ZZ
Engine coolant capacity
(With reservoir tank at MAX): Refer to MA-19, "Fluids and Lubricants".
Reservoir tank capacity : Refer to MA-19, "
Fluids and Lubricants".

CO-64
< ON-VEHICLE REPAIR >[K9K]
COOLING FAN
COOLING FAN
Exploded ViewINFOID:0000000001381594
Removal and InstallationINFOID:0000000001381595
REMOVAL
1. Remove engine undercover using power tool.
2. Drain engine coolant. Refer to CO-58, "
Draining".
3. Remove air duct (inlet). Refer to EM-269, "
Exploded View".
4. Disconnect reservoir tank hoses and remove reservoir tank.
5. Remove radiator hose (upper). Refer to CO-62, "
Exploded View".
6. Disconnect harness connector for cooling fan control module and fan motor, and move harness aside.
7. Remove cooling fan assembly.
CAUTION:
Be careful not to damage or scratch on radiator core.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Only use genuine parts for fan shroud bolt and observe the specified torque (to prevent radiator from
being damaged).
NOTE:
Cooling fan is controlled by ECM. For details, refer to CO-52, "
EngineCoolingSystem".
1. Fan shroud 2. Cooling fan control module 3. Fan motor
4. Cooling fan
A. Reverse screw
: Vehicle front
ALBIA0424GB

EC-2
Component Parts Location ...................................63
Component Description .........................................68
CAN COMMUNICATION ...................................69
System Description .................................................69
COOLING FAN CONTROL ...............................70
System Diagram .....................................................70
System Description .................................................70
Component Parts Location ...................................72
Component Description ..........................................77
EVAPORATIVE EMISSION SYSTEM ...............78
System Diagram .....................................................78
System Description .................................................80
Component Parts Location ...................................81
Component Description .........................................86
INTAKE VALVE TIMING CONTROL .................87
System Diagram .....................................................87
System Description .................................................87
Component Parts Location ...................................88
Component Description ..........................................93
ON BOARD DIAGNOSTIC (OBD) SYSTEM .....94
Diagnosis Description .............................................94
CONSULT-III Function ..........................................107
Diagnosis Tool Function ......................................114
COMPONENT DIAGNOSIS .......................116
TROUBLE DIAGNOSIS - SPECIFICATION
VALUE .............................................................
116
Description .............................................................116
Component Function Check ..................................116
Diagnosis Procedure .............................................117
POWER SUPPLY AND GROUND CIRCUIT ...124
Diagnosis Procedure .............................................124
U1000, U1001 CAN COMM CIRCUIT .............128
Description .............................................................128
DTC Logic ..............................................................128
Diagnosis Procedure .............................................128
U1010 CONTROL UNIT (CAN) .......................129
Description .............................................................129
DTC Logic ..............................................................129
Diagnosis Procedure .............................................129
P0011 IVT CONTROL ......................................130
DTC Logic ..............................................................130
Diagnosis Procedure .............................................131
Component Inspection ...........................................132
P0102, P0103 MAF SENSOR ..........................134
Description .............................................................134
DTC Logic ..............................................................134
Diagnosis Procedure .............................................135
Component Inspection ...........................................136
P0112, P0113 IAT SENSOR ............................139
Description ............................................................139
DTC Logic .............................................................139
Diagnosis Procedure .............................................140
Component Inspection ..........................................140
P0117, P0118 ECT SENSOR ...........................142
Description ............................................................142
DTC Logic .............................................................142
Diagnosis Procedure .............................................143
Component Inspection ..........................................143
P0122, P0123 TP SENSOR ..............................145
Description ............................................................145
DTC Logic .............................................................145
Diagnosis Procedure .............................................145
Component Inspection ..........................................147
Special Repair Requirement .................................147
P0132 HO2S1 ...................................................148
Description ............................................................148
DTC Logic .............................................................148
Diagnosis Procedure .............................................149
Component Inspection ..........................................150
P0133 HO2S1 ...................................................152
Description ............................................................152
DTC Logic .............................................................152
Diagnosis Procedure .............................................154
Component Inspection ..........................................155
P0134 HO2S1 ...................................................158
Description ............................................................158
DTC Logic .............................................................158
Diagnosis Procedure .............................................159
Component Inspection ..........................................160
P0135 HO2S1 HEATER ...................................163
Description ............................................................163
DTC Logic .............................................................163
Diagnosis Procedure .............................................163
Component Inspection ..........................................164
P0138 HO2S2 ...................................................166
Description ............................................................166
DTC Logic .............................................................166
Diagnosis Procedure .............................................167
Component Inspection ..........................................168
P0139 HO2S2 ...................................................170
Description ............................................................170
DTC Logic .............................................................170
Component Function Check .................................172
Diagnosis Procedure .............................................173
Component Inspection ..........................................174
P0141 HO2S2 HEATER ...................................176
Description ............................................................176
DTC Logic .............................................................176
Diagnosis Procedure .............................................176
Component Inspection ..........................................178

EC-6
IDLE AIR VOLUME LEARNING : Special Repair
Requirement ..........................................................
390
MIXTURE RATIO SELF-LEARNING VALUE
CLEAR .....................................................................
392
MIXTURE RATIO SELF-LEARNING VALUE
CLEAR : Description ..............................................
392
MIXTURE RATIO SELF-LEARNING VALUE
CLEAR : Special Repair Requirement ...................
392
FUNCTION DIAGNOSIS ............................393
ENGINE CONTROL SYSTEM .........................393
System Diagram ...................................................393
System Description ................................................394
Component Parts Location ..................................394
Component Description .........................................399
MULTIPORT FUEL INJECTION SYSTEM ......401
System Diagram ...................................................401
System Description ................................................401
Component Parts Location ..................................404
Component Description .........................................409
ELECTRIC IGNITION SYSTEM .......................410
System Diagram ...................................................410
System Description ................................................410
Component Parts Location ..................................411
Component Description .........................................416
AIR CONDITIONING CUT CONTROL ............417
System Diagram ....................................................417
System Description ................................................417
Component Parts Location ..................................418
Component Description .........................................423
AUTOMATIC SPEED CONTROL DEVICE
(ASCD) .............................................................
424
System Diagram ....................................................424
System Description ................................................424
Component Parts Location ..................................426
Component Description ........................................431
CAN COMMUNICATION .................................432
System Description ................................................432
COOLING FAN CONTROL .............................433
System Diagram ....................................................433
System Description ................................................433
Component Parts Location ..................................435
Component Description .........................................440
EVAPORATIVE EMISSION SYSTEM .............441
System Diagram ....................................................441
System Description ................................................443
Component Parts Location ..................................444
Component Description ........................................449
INTAKE VALVE TIMING CONTROL ...............450
System Diagram ....................................................450
System Description ................................................450
Component Parts Location ..................................451
Component Description ........................................456
DIAGNOSIS SYSTEM (ECM) ...........................457
Diagnosis Description ...........................................457
CONSULT-III Function ..........................................462
COMPONENT DIAGNOSIS ......................469
TROUBLE DIAGNOSIS - SPECIFICATION
VALUE ..............................................................
469
Description ............................................................469
Component Function Check .................................469
Diagnosis Procedure .............................................470
POWER SUPPLY AND GROUND CIRCUIT ....477
Diagnosis Procedure .............................................477
U1000, U1001 CAN COMM CIRCUIT ..............481
Description ............................................................481
DTC Logic .............................................................481
Diagnosis Procedure .............................................481
U1010 CONTROL UNIT (CAN) ........................482
Description ............................................................482
DTC Logic .............................................................482
Diagnosis Procedure .............................................482
P0011 IVT CONTROL ......................................483
DTC Logic .............................................................483
Component Function Check .................................484
Diagnosis Procedure .............................................484
Component Inspection ..........................................486
P0102, P0103 MAF SENSOR ..........................487
Description ............................................................487
DTC Logic .............................................................487
Diagnosis Procedure .............................................488
Component Inspection ..........................................489
P0117, P0118 ECT SENSOR ...........................492
Description ............................................................492
DTC Logic .............................................................492
Diagnosis Procedure .............................................493
Component Inspection ..........................................493
P0122, P0123 TP SENSOR ..............................495
Description ............................................................495
DTC Logic .............................................................495
Diagnosis Procedure .............................................495
Component Inspection ..........................................497
Special Repair Requirement .................................497
P0132 HO2S1 ...................................................498
Description ............................................................498
DTC Logic .............................................................498
Diagnosis Procedure .............................................499
Component Inspection ..........................................500
P0134 HO2S1 ...................................................502
Description ............................................................502
DTC Logic .............................................................502

EC-10
FUNCTION DIAGNOSIS ............................697
ENGINE CONTROL SYSTEM .........................697
System Diagram ...................................................697
System Description ................................................698
Component Parts Location ..................................698
Component Description .........................................703
MULTIPORT FUEL INJECTION SYSTEM ......705
System Diagram ...................................................705
System Description ................................................705
Component Parts Location ..................................708
Component Description .........................................713
ELECTRIC IGNITION SYSTEM .......................714
System Diagram ...................................................714
System Description ................................................714
Component Parts Location ..................................715
Component Description .........................................720
AIR CONDITIONING CUT CONTROL ............721
System Diagram ....................................................721
System Description ................................................721
Component Parts Location ..................................722
Component Description .........................................727
AUTOMATIC SPEED CONTROL DEVICE
(ASCD) .............................................................
728
System Diagram ....................................................728
System Description ................................................728
Component Parts Location ..................................730
Component Description ........................................735
CAN COMMUNICATION .................................736
System Description ................................................736
COOLING FAN CONTROL .............................737
System Diagram ....................................................737
System Description ................................................737
Component Parts Location ..................................739
Component Description .........................................744
EVAPORATIVE EMISSION SYSTEM .............745
System Diagram ....................................................745
System Description ................................................746
Component Parts Location ..................................747
Component Description ........................................752
INTAKE VALVE TIMING CONTROL ...............753
System Diagram ....................................................753
System Description ................................................753
Component Parts Location ..................................754
Component Description .........................................759
ON BOARD DIAGNOSTIC (OBD) SYSTEM ...760
Diagnosis Description ............................................760
CONSULT-III Function ..........................................772
Diagnosis Tool Function ......................................779
COMPONENT DIAGNOSIS .......................781
TROUBLE DIAGNOSIS - SPECIFICATION
VALUE ..............................................................
781
Description ............................................................781
Component Function Check .................................781
Diagnosis Procedure .............................................782
POWER SUPPLY AND GROUND CIRCUIT ....789
Diagnosis Procedure .............................................789
U1000, U1001 CAN COMM CIRCUIT ..............793
Description ............................................................793
DTC Logic .............................................................793
Diagnosis Procedure .............................................793
U1010 CONTROL UNIT (CAN) ........................794
Description ............................................................794
DTC Logic .............................................................794
Diagnosis Procedure .............................................794
P0011 IVT CONTROL ......................................795
DTC Logic .............................................................795
Diagnosis Procedure .............................................796
Component Inspection ..........................................797
P0102, P0103 MAF SENSOR ..........................799
Description ............................................................799
DTC Logic .............................................................799
Diagnosis Procedure .............................................800
Component Inspection ..........................................801
P0112, P0113 IAT SENSOR ............................804
Description ............................................................804
DTC Logic .............................................................804
Diagnosis Procedure .............................................805
Component Inspection ..........................................805
P0117, P0118 ECT SENSOR ...........................807
Description ............................................................807
DTC Logic .............................................................807
Diagnosis Procedure .............................................808
Component Inspection ..........................................808
P0122, P0123 TP SENSOR ..............................810
Description ............................................................810
DTC Logic .............................................................810
Diagnosis Procedure .............................................810
Component Inspection ..........................................812
Special Repair Requirement .................................812
P0132 HO2S1 ...................................................813
Description ............................................................813
DTC Logic .............................................................813
Diagnosis Procedure .............................................814
Component Inspection ..........................................815
P0133 HO2S1 ...................................................817
Description ............................................................817
DTC Logic .............................................................817
Diagnosis Procedure .............................................819
Component Inspection ..........................................820