cooling NISSAN TEANA 2008 User Guide

COOLING FAN
CO-17
< ON-VEHICLE REPAIR >
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CAUTION:
Be careful not to damage or scratch on radiator core.
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
Only use genuine parts for cooling fan mounting bolt and observe the specified torque (to prevent
radiator from being damaged).
NOTE:
Cooling fans are controlled by ECM. For details, refer to EC-60, "
System Diagram".
Disassembly and AssemblyINFOID:0000000003793177
DISASSEMBLY
1. Remove cooling fan mounting nuts, and then remove the cooling fans (RH and LH).
2. Remove fan motors (RH and LH).
ASSEMBLY
Note the following, and assemble in the reverse order of disassembly.
CAUTION:
RH and LH cooling fans are different. Be careful not to misassemble them.
 Install each fan in the following position.
 Secure the harness tightly to the fan shroud to prevent the fan rotation area from being loose.
 Apply high thread locking sealant on for motor shaft.
InspectionINFOID:0000000003793178
INSPECTION AFTER DISASSEMBLY
Cooling Fan
Inspect cooling fan for crack or unusual bend.
 If anything is found, replace cooling fan.Right side : 11 blades
Left side : 9 blades

RADIATOR CORE SUPPORT
DLK-197
< ON-VEHICLE REPAIR >[WITH INTELLIGENT KEY SYSTEM]
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13. Disconnect connector of refrigerant pressure sensor. Refer to HA-50, "Exploded View".
14. Remove mounting bolt, and then remove engine coolant reservoir tank. Refer to CO-13, "
Exploded View".
15. Remove mounting bolts, and then disconnect condenser pipe assembly. Refer to HA-48, "
Exploded
View".
16. Remove condenser. Refer to HA-46, "
Removal and Installation".
17. Remove mounting nut of radiator upper hose from radiator core support, and then remove radiator upper
hose and hood switch bracket. Refer to CO-25, "
Exploded View".
18. Disconnect radiator upper hose from radiator pipe (upper). Refer to CO-25, "
Exploded View".
19. Disconnect radiator lower hose (3). Refer to CO-25, "
Exploded View".
20. Disconnect CVT fluid cooler hose on radiator side. Refer to TM-165, "
Exploded View" (CVT: RE0F09B) or
TM-329, "
Exploded View" (CVT: RE0F10A).
21. Remove power steering oil cooler pipe from radiator core sup-
port at point shown by arrows in the figure.
22. Disconnect connectors of the following parts.
 Cooling fan (RH/LH). Refer to CO-16, "
Exploded View".
 Crash zone sensor. Refer to SR-18, "
Removal and Installation".
23. Remove radiator upper clip. Refer to CO-13, "
Exploded View".
24. Remove all harness clips from radiator core support.
CAUTION:
Never damage radiator.
25. Support hood assembly with a proper material to prevent it from falling.
WARNING:
Bodily injury may occur if no supporting rod is holding the hood open when removing the hood
stay.
26. Remove hood support rod. Refer to DLK-195, "
HOOD SUPPORT ROD : Removal and Installation".
27. Remove mounting bolts, and then remove radiator core support.
CAUTION:
 Operate with two workers, because of its heavy weight.
 Never damage power steering oil cooler pipe.
28. Remove the following parts after removing radiator core support.
 Radiator lower hose, radiator upper hose, radiator pipe. Refer to CO-25, "
Exploded View".
 Radiator. Refer to CO-13, "
Exploded View".
 Cooling fan (RH/LH). Refer to CO-16, "
Exploded View".
 Crash zone sensor. Refer to SR-18, "
Exploded View".
 Power steering oil cooler pipe clip. Refer to ST-34, "
Exploded View".
INSTALLATION
Install in the reverse order of removal.
JMKIA2395ZZ
: harness clip
JMKIA2396ZZ

EC-2
Component Parts Location ...................................53
Component Description .........................................58
CAN COMMUNICATION ...................................59
System Description .................................................59
COOLING FAN CONTROL ...............................60
System Diagram .....................................................60
System Description .................................................60
Component Parts Location ...................................62
Component Description ..........................................67
ELECTRONIC CONTROLLED ENGINE
MOUNT ..............................................................
68
System Diagram .....................................................68
System Description .................................................69
Component Parts Location ...................................70
Component Description .........................................75
EVAPORATIVE EMISSION SYSTEM ...............76
System Diagram .....................................................76
System Description .................................................76
Component Parts Location ...................................80
Component Description .........................................85
INTAKE VALVE TIMING CONTROL .................86
System Diagram .....................................................86
System Description .................................................86
Component Parts Location ...................................87
Component Description ..........................................92
VARIABLE INDUCTION AIR SYSTEM .............93
System Diagram .....................................................93
System Description .................................................93
Component Parts Location ...................................96
Component Description ........................................101
ON BOARD DIAGNOSTIC (OBD) SYSTEM ...102
Diagnosis Description ............................................102
CONSULT-III Function ..........................................113
Diagnosis Tool Function ......................................122
COMPONENT DIAGNOSIS .......................124
TROUBLE DIAGNOSIS - SPECIFICATION
VALUE .............................................................
124
Description .............................................................124
Component Function Check ..................................124
Diagnosis Procedure .............................................125
POWER SUPPLY AND GROUND CIRCUIT ...132
Diagnosis Procedure .............................................132
U1000, U1001 CAN COMM CIRCUIT .............135
Description .............................................................135
DTC Logic ..............................................................135
Diagnosis Procedure .............................................135
P0011, P0021 IVT CONTROL .........................136
DTC Logic ..............................................................136
Diagnosis Procedure .............................................137
Component Inspection ..........................................138
P0031, P0032, P0051, P0052 A/F SENSOR 1
HEATER ...........................................................
140
Description ............................................................140
DTC Logic .............................................................140
Diagnosis Procedure .............................................140
Component Inspection ..........................................142
P0037, P0038, P0057, P0058 HO2S2 HEAT-
ER .....................................................................
143
Description ............................................................143
DTC Logic .............................................................143
Diagnosis Procedure .............................................144
Component Inspection ..........................................145
P0075, P0081 IVT CONTROL SOLENOID
VALVE ..............................................................
146
Description ............................................................146
DTC Logic .............................................................146
Diagnosis Procedure .............................................146
Component Inspection ..........................................147
P0102, P0103 MAF SENSOR ..........................149
Description ............................................................149
DTC Logic .............................................................149
Diagnosis Procedure .............................................150
Component Inspection ..........................................151
P0112, P0113 IAT SENSOR ............................154
Description ............................................................154
DTC Logic .............................................................154
Diagnosis Procedure .............................................155
Component Inspection ..........................................155
P0117, P0118 ECT SENSOR ...........................157
Description ............................................................157
DTC Logic .............................................................157
Diagnosis Procedure .............................................158
Component Inspection ..........................................158
P0122, P0123 TP SENSOR ..............................160
Description ............................................................160
DTC Logic .............................................................160
Diagnosis Procedure .............................................160
Component Inspection ..........................................162
Special Repair Requirement .................................162
P0130, P0150 A/F SENSOR 1 .........................163
Description ............................................................163
DTC Logic .............................................................163
Component Function Check .................................165
Diagnosis Procedure .............................................165
P0131, P0151 A/F SENSOR 1 .........................167
Description ............................................................167
DTC Logic .............................................................167
Diagnosis Procedure .............................................168
P0132, P0152 A/F SENSOR 1 .........................170
Description ............................................................170

EC-5
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P2122, P2123 APP SENSOR ...........................304
Description ............................................................304
DTC Logic .............................................................304
Diagnosis Procedure .............................................304
Component Inspection ..........................................306
Special Repair Requirement .................................306
P2127, P2128 APP SENSOR ...........................307
Description ............................................................307
DTC Logic .............................................................307
Diagnosis Procedure .............................................307
Component Inspection ..........................................309
Special Repair Requirement .................................310
P2135 TP SENSOR ..........................................311
Description ............................................................311
DTC Logic .............................................................311
Diagnosis Procedure .............................................311
Component Inspection ..........................................313
Special Repair Requirement .................................313
P2138 APP SENSOR .......................................314
Description ............................................................314
DTC Logic .............................................................314
Diagnosis Procedure .............................................314
Component Inspection ..........................................316
Special Repair Requirement .................................317
P2A00, P2A03 A/F SENSOR 1 ........................318
Description ............................................................318
DTC Logic .............................................................318
Diagnosis Procedure .............................................319
ASCD BRAKE SWITCH ...................................321
Description ............................................................321
Component Function Check ..................................321
Diagnosis Procedure .............................................321
Component Inspection (ASCD Brake Switch) .......322
ASCD INDICATOR ...........................................323
Description ............................................................323
Component Function Check ..................................323
Diagnosis Procedure .............................................323
COOLING FAN .................................................324
Description ............................................................324
Component Function Check ..................................324
Diagnosis Procedure .............................................324
Component Inspection (Cooling Fan Motor) .........327
Component Inspection (Cooling Fan Relay) .........328
ELECTRICAL LOAD SIGNAL .........................329
Description ............................................................329
Component Function Check ..................................329
Diagnosis Procedure .............................................329
ELECTRONIC CONTROLLED ENGINE
MOUNT .............................................................
331
Description ............................................................331
Component Function Check ..................................331
Diagnosis Procedure .............................................331
Component Inspection ...........................................332
FUEL INJECTOR ............................................334
Description .............................................................334
Component Function Check ..................................334
Diagnosis Procedure .............................................334
Component Inspection ...........................................336
FUEL PUMP ....................................................337
Description .............................................................337
Component Function Check ..................................337
Diagnosis Procedure .............................................337
Component Inspection (Fuel Pump) ......................340
Component Inspection (Condenser) ......................340
IGNITION SIGNAL ..........................................341
Description .............................................................341
Component Function Check ..................................341
Diagnosis Procedure .............................................341
Component Inspection (Ignition Coil with Power
Transistor) .............................................................
344
Component Inspection (Condenser) ......................345
MALFUNCTION INDICATOR .........................346
Description .............................................................346
Component Function Check ..................................346
Diagnosis Procedure .............................................346
POSITIVE CRANKCASE VENTILATION .......347
Description .............................................................347
Component Inspection ...........................................347
REFRIGERANT PRESSURE SENSOR ..........348
Description .............................................................348
Component Function Check ..................................348
Diagnosis Procedure .............................................348
VARIABLE INDUCTION AIR SYSTEM ..........351
Description .............................................................351
Component Function Check (VQ35DE engine) .....351
Component Function Check (VQ25DE engine) .....353
Diagnosis Procedure (VQ35DE engine) ................353
Diagnosis Procedure (VQ25DE engine) ................355
ECU DIAGNOSIS .......................................357
ECM .................................................................357
Reference Value ....................................................357
Wiring Diagram—ENGINE CONTROL SYS-
TEM— ...................................................................
371
Fail safe .................................................................386
DTC Inspection Priority Chart .............................388
DTC Index .............................................................389
How to Set SRT Code ........................................392
Test Value and Test Limit ...................................394
SYMPTOM DIAGNOSIS ............................400
ENGINE CONTROL SYSTEM SYMPTOMS ...400
Symptom Table .....................................................400
NORMAL OPERATING CONDITION .............404

EC-20
< FUNCTION DIAGNOSIS >[VQ25DE, VQ35DE]
ENGINE CONTROL SYSTEM
System Description
INFOID:0000000003856462
ECM performs various controls such as fuel injection control and ignition timing control.
Component Parts LocationINFOID:0000000003856463
1. Intake valve timing control solenoid
valve (bank 1)2. Intake valve timing control solenoid
valve (bank 2)3. Electronic controlled engine mount
control solenoid valve
4. Fuel injector (bank 2) 5. Cooling fan motor-2 6. A/F sensor 1 (bank 2)
7. Ignition coil (with power transistor)
and spark plug (bank 2)8. Camshaft position sensor (PHASE)
(bank 2)9. Crankshaft position sensor (POS)
10. Engine coolant temperature sensor 11. Cooling fan motor-1 12. ECM
13. Refrigerant pressure sensor 14. Battery current sensor 15. IPDM E/R
16. Mass air flow sensor (with intake air
temperature sensor)17. Electric throttle control actuator 18. Power valve actuator 2 (VQ35DE
models)
19. EVAP canister purge volume control
solenoid valve20. Camshaft position sensor (PHASE)
(bank 1)21. Ignition coil (with power transistor)
and spark plug (bank 1)
22. A/F sensor 1 (bank 1) 23. Fuel injector (bank 1) 24. VIAS control solenoid valve 1 and 2
(VQ35DE models)
25. Power valve actuator 1
JMBIA1373ZZ

ENGINE CONTROL SYSTEM
EC-25
< FUNCTION DIAGNOSIS >[VQ25DE, VQ35DE]
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Component DescriptionINFOID:0000000003856464
1. Fuel level sensor unit and fuel pump
harness connector2. Fuel pressure regulator 3. Fuel level sensor unit and fuel pump
: Vehicle front
JMBIA1385ZZ
Component Reference
A/F sensor 1EC-163, "
Description"
A/F sensor 1 heaterEC-140, "Description"
Accelerator pedal position sensorEC-304, "Description"
ASCD brake switchEC-273, "Description"
ASCD steering switchEC-270, "Description"
Battery current sensorEC-258, "Description"
Camshaft position sensor (PHASE)EC-222, "Description"
Crankshaft position sensor (POS)EC-218, "Description"
Cooling fan motorEC-324, "Description"
Electric throttle control actuatorEC-302, "Description"
Electronic controlled engine mountEC-331, "Description"
Engine coolant temperature sensorEC-157, "Description"
EVAP canister purge volume control solenoid valveEC-231, "Description"
Fuel injectorEC-334, "Description"
Fuel pumpEC-337, "Description"
Heated oxygen sensor 2EC-178, "Description"
Heated oxygen sensor 2 heaterEC-143, "Description"
Ignition coil with power transistorEC-341, "Description"
Intake air temperature sensorEC-154, "Description"
Intake valve timing control solenoid valveEC-146, "Description"
Knock sensorEC-215, "Description"
Mass air flow sensorEC-149, "Description"
PCV valveEC-347, "Description"
Power steering pressure sensorEC-236, "Description"
Power valves 1 and 2EC-351, "Description"
Refrigerant pressure sensorEC-348, "Description"
Stop lamp switchEC-291, "Description"
TCM (VQ35DE engine)
Park/neutral position (PNP) switch (VQ25DE engine)EC-245, "Description"
Throttle control motorEC-300, "Description"

MULTIPORT FUEL INJECTION SYSTEM
EC-31
< FUNCTION DIAGNOSIS >[VQ25DE, VQ35DE]
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Component Parts LocationINFOID:0000000003857771
1. Intake valve timing control solenoid
valve (bank 1)2. Intake valve timing control solenoid
valve (bank 2)3. Electronic controlled engine mount
control solenoid valve
4. Fuel injector (bank 2) 5. Cooling fan motor-2 6. A/F sensor 1 (bank 2)
7. Ignition coil (with power transistor)
and spark plug (bank 2)8. Camshaft position sensor (PHASE)
(bank 2)9. Crankshaft position sensor (POS)
10. Engine coolant temperature sensor 11. Cooling fan motor-1 12. ECM
13. Refrigerant pressure sensor 14. Battery current sensor 15. IPDM E/R
16. Mass air flow sensor (with intake air
temperature sensor)17. Electric throttle control actuator 18. Power valve actuator 2 (VQ35DE
models)
19. EVAP canister purge volume control
solenoid valve20. Camshaft position sensor (PHASE)
(bank 1)21. Ignition coil (with power transistor)
and spark plug (bank 1)
22. A/F sensor 1 (bank 1) 23. Fuel injector (bank 1) 24. VIAS control solenoid valve 1 and 2
(VQ35DE models)
25. Power valve actuator 1
JMBIA1373ZZ

EC-38
< FUNCTION DIAGNOSIS >[VQ25DE, VQ35DE]
ELECTRIC IGNITION SYSTEM
operate under normal driving conditions. If engine knocking occurs, the knock sensor monitors the condition.
The signal is transmitted to the ECM. The ECM retards the ignition timing to eliminate the knocking condition.
Component Parts LocationINFOID:0000000003857772
1. Intake valve timing control solenoid
valve (bank 1)2. Intake valve timing control solenoid
valve (bank 2)3. Electronic controlled engine mount
control solenoid valve
4. Fuel injector (bank 2) 5. Cooling fan motor-2 6. A/F sensor 1 (bank 2)
7. Ignition coil (with power transistor)
and spark plug (bank 2)8. Camshaft position sensor (PHASE)
(bank 2)9. Crankshaft position sensor (POS)
10. Engine coolant temperature sensor 11. Cooling fan motor-1 12. ECM
13. Refrigerant pressure sensor 14. Battery current sensor 15. IPDM E/R
16. Mass air flow sensor (with intake air
temperature sensor)17. Electric throttle control actuator 18. Power valve actuator 2 (VQ35DE
models)
19. EVAP canister purge volume control
solenoid valve20. Camshaft position sensor (PHASE)
(bank 1)21. Ignition coil (with power transistor)
and spark plug (bank 1)
22. A/F sensor 1 (bank 1) 23. Fuel injector (bank 1) 24. VIAS control solenoid valve 1 and 2
(VQ35DE models)
25. Power valve actuator 1
JMBIA1373ZZ

AIR CONDITIONING CUT CONTROL
EC-45
< FUNCTION DIAGNOSIS >[VQ25DE, VQ35DE]
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Component Parts LocationINFOID:0000000003857773
1. Intake valve timing control solenoid
valve (bank 1)2. Intake valve timing control solenoid
valve (bank 2)3. Electronic controlled engine mount
control solenoid valve
4. Fuel injector (bank 2) 5. Cooling fan motor-2 6. A/F sensor 1 (bank 2)
7. Ignition coil (with power transistor)
and spark plug (bank 2)8. Camshaft position sensor (PHASE)
(bank 2)9. Crankshaft position sensor (POS)
10. Engine coolant temperature sensor 11. Cooling fan motor-1 12. ECM
13. Refrigerant pressure sensor 14. Battery current sensor 15. IPDM E/R
16. Mass air flow sensor (with intake air
temperature sensor)17. Electric throttle control actuator 18. Power valve actuator 2 (VQ35DE
models)
19. EVAP canister purge volume control
solenoid valve20. Camshaft position sensor (PHASE)
(bank 1)21. Ignition coil (with power transistor)
and spark plug (bank 1)
22. A/F sensor 1 (bank 1) 23. Fuel injector (bank 1) 24. VIAS control solenoid valve 1 and 2
(VQ35DE models)
25. Power valve actuator 1
JMBIA1373ZZ

AUTOMATIC SPEED CONTROL DEVICE (ASCD)
EC-53
< FUNCTION DIAGNOSIS >[VQ25DE, VQ35DE]
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Component Parts LocationINFOID:0000000003857774
1. Intake valve timing control solenoid
valve (bank 1)2. Intake valve timing control solenoid
valve (bank 2)3. Electronic controlled engine mount
control solenoid valve
4. Fuel injector (bank 2) 5. Cooling fan motor-2 6. A/F sensor 1 (bank 2)
7. Ignition coil (with power transistor)
and spark plug (bank 2)8. Camshaft position sensor (PHASE)
(bank 2)9. Crankshaft position sensor (POS)
10. Engine coolant temperature sensor 11. Cooling fan motor-1 12. ECM
13. Refrigerant pressure sensor 14. Battery current sensor 15. IPDM E/R
16. Mass air flow sensor (with intake air
temperature sensor)17. Electric throttle control actuator 18. Power valve actuator 2 (VQ35DE
models)
19. EVAP canister purge volume control
solenoid valve20. Camshaft position sensor (PHASE)
(bank 1)21. Ignition coil (with power transistor)
and spark plug (bank 1)
22. A/F sensor 1 (bank 1) 23. Fuel injector (bank 1) 24. VIAS control solenoid valve 1 and 2
(VQ35DE models)
25. Power valve actuator 1
JMBIA1373ZZ