CO-50
< REMOVAL AND INSTALLATION >[VQ35DE]
THERMOSTAT AND THERMOSTAT HOUSING
8. Remove engine coolant inlet, thermostat assembly and gasket.
•Do not disassemble engine cool ant inlet and thermostat.
Replace them as a unit, if necessary.
• Do not reuse gasket.
INSPECTION AFTER REMOVAL
• Place a thread so that it is caught in the valves of the thermostat.
Immerse fully in a container filled with water. Heat while stirring.
• The valve opening temperature is the temperature at which the
valve opens and the thermostat falls from the thread.
• Continue heating. Check the full-open lift amount. NOTE:
The full-open lift amount standard temperature for the thermostat is
the reference value.
• After checking the full-open lift amount, lower the water tempera-
ture and check the valve closing temperature.
• If valve setting at measured values are out of standard range, replace thermostat.
INSTALLATION
Installation is in the reverse order of removal.
• Install thermostat with jiggle valve facing upward.
• After installation refill engine coolant and check for leaks. Refer to
CO-36, "Changing Engine Coolant"
and CO-35, "System Inspec-
tion".
CAUTION:
• Do not spill coolant in engi ne compartment. Use a shop
cloth to absorb coolant.
• Do not reuse gasket.
SLC962AA
SLC949A
Thermostat Standard Values
Valve opening temperature Refer to CO-53, "Thermostat"
Full-open lift amount Refer to CO-53, "Thermostat"
Valve closing temperature Refer to CO-53, "Thermostat"
SLC948A
Revision: November 20132014 Altima NAM
WATER OUTLET AND WATER PIPINGCO-51
< REMOVAL AND INSTALLATION > [VQ35DE]
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WATER OUTLET AND WATER PIPING
Exploded ViewINFOID:0000000009460424
WARNING:
Do not remove the radiator cap when the engine is hot. Serious burns could occur from high-pressure
engine coolant escaping from the radiator. Wrap a thick cloth around the cap. Slowly push down and
turn it a quarter turn to allow built-up pressure to escape. Carefully remove the cap by pushing it down
and turning it all the way.
NOTE:
When removing components such as hoses, tubes/lines, etc. , cap or plug openings to prevent fluid from spill-
ing.
Removal and InstallationINFOID:0000000009460425
REMOVAL
1. Remove engine room cover. Refer to EM-28, "Removal and Installation".
CAUTION:
Perform when the engine is cold.
1. Heater hose 2. Clamp 3. Water hose
4. Clamp 5. Water outlet 6. Gasket
7. Gasket 8. Water connector 9. O-ring
10. Water bypass pipe 11. Clamp 12. Water hose
13. Heater pipe 14. Water hose 15. Heater hose
16. Engine coolant temperature sensor 17. Clamp 18. Radiator hose (upper)
A. To heater core B. To electric throttle control actuator C. To oil cooler
D. To radiator
AWBIA1107GB
Revision: November 20132014 Altima NAM
CO-52
< REMOVAL AND INSTALLATION >[VQ35DE]
WATER OUTLET AND WATER PIPING
2. Partially drain engine coolant from radiator. Refer to
CO-36, "Changing Engine Coolant".
3. Remove the core support cover clips (A), then remove the core support cover (1).
4. Remove front air duct. Refer to EM-84, "Removal and Installation"
.
5. Remove air duct and air cleaner case assembly. Refer to EM-144, "Removal and Installation"
.
6. Remove engine side under cover (RH). Refer to EXT-28, "Removal and Installation"
.
7. Disconnect hoses from electric throttle control actuator.
8. Remove radiator upper hose and heater hoses.
9. Remove connector(s) from heater pipe.
10. Disconnect engine coolant temperature sens or electrical connector on water outlet.
11. Remove water outlet, heater pipe, water connector, and water bypass pipe nuts and bolts.
12. Remove engine coolant temperature sensor, if necessary.
INSTALLATION
Installation is in the reverse order of removal.
• Securely insert each hose, and install a clamp at a pos ition where it does not interfere with the pipe bulge.
• When inserting heater pipe and water bypass pipe into water connector, apply mild soap to new O-rings.
CAUTION:
Do not reuse O-ring.
• After installation refill engine coolant and check for leaks. Refer to CO-36, "Changing Engine Coolant"
and
CO-35, "System Inspection"
.
ALKIA2602ZZ
Revision: November 20132014 Altima NAM
DAS-38
< BASIC INSPECTION >[ITS CONTROL UNIT]
REAR VIEW CAMERA CALIBRATION
REAR VIEW CAMERA CALIBRATION
DescriptionINFOID:0000000009464665
Always perform the calibration after removing and installing or replacing the rear view camera.
CAUTION:
• Place the vehicle on level ground wh en the calibration is performed.
• Follow the CONSULT when performing the calib ration. (Rear view camera calibration cannot be
operated without CONSULT).
Work Procedure (Preparation)INFOID:0000000009464666
1.PERFORM SELF-DIAGNOSIS
Perform self-diagnosis of the ITS control unit.
Is any DTC detected?
Except "U1308">> Perform diagnosis on the detected DTC and repair or replace the applicable item. Refer to
DAS-20, "DTC Index"
.
"U1308" or no DTC>> GO TO 2.
2.PREPARATION BEFORE REAR VIEW CAMERA CALIBRATION
NOTE:
Select the "AVM" to diagnose the ITS control unit by CONSULT.
1. Perform pre-inspection for diagnosis. Refer to DAS-34, "Inspection Procedure"
.
2. Adjust the tire pressure to the specified pressure value.
3. Maintain no-load in vehicle.
4. Check if coolant and engine oil are filled up to correct level and fuel tank is full.
5. Situate vehicle where the camera is ex posed at an atmosphere temperature between 0 °C (32 °F) and
30 °C (86 °F)
6. Move the shift selector to P (Park) and release the parking brake.
7. Clean the rear view camera.
>> GO TO 3.
3.PREPARATION OF CALIBRATION TARGET MARK
Prepare the calibration target mark according to the following figure:
ALOIA0186ZZ
(1) : Left and right targets
(2) : Center target
(A) : Side of the black or white area = 200 mm (7.87 in)
(B) : Side of the square target = 400 mm (15.75 in)
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
DAS
REAR VIEW CAMERA CALIBRATIONDAS-107
< BASIC INSPECTION > [LDW]
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REAR VIEW CAMERA CALIBRATION
DescriptionINFOID:0000000009464741
Always perform the calibration after removing and installing or replacing the rear view camera.
CAUTION:
• Place the vehicle on level ground when the calibration is performed.
• Follow the CONSULT when performing the calib ration. (Rear view camera calibration cannot be
operated without CONSULT).
Work Procedure (Preparation)INFOID:0000000009464742
1.PERFORM SELF-DIAGNOSIS
Perform self-diagnosis of the ITS control unit.
Is any DTC detected?
Except "U1308">> Perform diagnosis on the detected DTC and repair or replace the applicable item. Refer to
DAS-89, "DTC Index"
.
"U1308" or no DTC>>GO TO 2.
2.PREPARATION BEFORE REAR VIEW CAMERA CALIBRATION
NOTE:
Select the "AVM" to diagnose the ITS control unit by CONSULT.
1. Perform pre-inspection for diagnosis. Refer to DAS-103, "Inspection Procedure"
.
2. Adjust the tire pressure to the specified pressure value.
3. Maintain no-load in vehicle.
4. Check if coolant and engine oil are filled up to correct level and fuel tank is full.
5. Situate vehicle where the camera is ex posed at an atmosphere temperature between 0 °C (32 °F) and
30 °C (86 °F)
6. Move the shift selector to P (Park) and release the parking brake.
7. Clean the rear view camera.
>> GO TO 3.
3.PREPARATION OF CALIBRATION TARGET MARK
Prepare the calibration target mark according to the following figure:
ALOIA0186ZZ
(1) : Left and right targets
(2) : Center target
(A) : Side of the black or white area = 200 mm (7.87 in)
(B) : Side of the square target = 400 mm (15.75 in)
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
DAS-182
< BASIC INSPECTION >[BSW]
REAR VIEW CAMERA CALIBRATION
REAR VIEW CAMERA CALIBRATION
DescriptionINFOID:0000000009464825
Always perform the calibration after removing and installing or replacing the rear view camera.
CAUTION:
• Place the vehicle on level ground wh en the calibration is performed.
• Follow the CONSULT when performing the calib ration. (Rear view camera calibration cannot be
operated without CONSULT).
Work Procedure (Preparation)INFOID:0000000009464826
1.PERFORM SELF-DIAGNOSIS
Perform self-diagnosis of the ITS control unit.
Is any DTC detected?
Except "U1308">> Perform diagnosis on the detected DTC and repair or replace the applicable item. Refer to
DAS-164, "DTC Index"
.
"U1308" or no DTC>>GO TO 2.
2.PREPARATION BEFORE REAR VIEW CAMERA CALIBRATION
NOTE:
Select the "AVM" to diagnose the ITS control unit by CONSULT.
1. Perform pre-inspection for diagnosis. Refer to DAS-158, "CONSULT Function (AVM)"
.
2. Adjust the tire pressure to the specified pressure value.
3. Maintain no-load in vehicle.
4. Check if coolant and engine oil are filled up to correct level and fuel tank is full.
5. Situate vehicle where the camera is ex posed at an atmosphere temperature between 0 °C (32 °F) and
30 °C (86 °F)
6. Move the shift selector to P (Park) and release the parking brake.
7. Clean the rear view camera.
>> GO TO 3.
3.PREPARATION OF CALIBRATION TARGET MARK
Prepare the calibration target mark according to the following figure:
ALOIA0186ZZ
(1) : Left and right targets
(2) : Center target
(A) : Side of the black or white area = 200 mm (7.87 in)
(B) : Side of the square target = 400 mm (15.75 in)
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
DAS-256
< BASIC INSPECTION >[MOD]
REAR VIEW CAMERA CALIBRATION
REAR VIEW CAMERA CALIBRATION
DescriptionINFOID:0000000009464906
Always perform the calibration after removing and installing or replacing the rear view camera.
CAUTION:
• Place the vehicle on level ground wh en the calibration is performed.
• Follow the CONSULT when performing the calib ration. (Rear view camera calibration cannot be
operated without CONSULT).
Work Procedure (Preparation)INFOID:0000000009464907
1.PERFORM SELF-DIAGNOSIS
Perform self-diagnosis of the ITS control unit.
Is any DTC detected?
Except "U1308">> Perform diagnosis on the detected DTC and repair or replace the applicable item. Refer to
DAS-239, "DTC Index"
.
"U1308" or no DTC>>GO TO 2.
2.PREPARATION BEFORE REAR VIEW CAMERA CALIBRATION
NOTE:
Select the "AVM" to diagnose the ITS control unit by CONSULT.
1. Perform pre-inspection for diagnosis. Refer to DAS-253, "Inspection Procedure"
.
2. Adjust the tire pressure to the specified pressure value.
3. Maintain no-load in vehicle.
4. Check if coolant and engine oil are filled up to correct level and fuel tank is full.
5. Situate vehicle where the camera is ex posed at an atmosphere temperature between 0 °C (32 °F) and
30 °C (86 °F)
6. Move the shift selector to P (Park) and release the parking brake.
7. Clean the rear view camera.
>> GO TO 3.
3.PREPARATION OF CALIBRATION TARGET MARK
Prepare the calibration target mark according to the following figure:
ALOIA0186ZZ
(1) : Left and right targets
(2) : Center target
(A) : Side of the black or white area = 200 mm (7.87 in)
(B) : Side of the square target = 400 mm (15.75 in)
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
EC-1
ENGINE
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SECTION EC
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CONTENTS
ENGINE CONTROL SYSTEM
QR25DE
PRECAUTION ................ ..............................
15
PRECAUTIONS .............................................. ....15
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
15
Precaution for Procedure without Cowl Top Cover ....15
On Board Diagnostic (OBD) System of Engine
and CVT .............................................................. ....
15
General Precautions ...............................................16
PREPARATION ...........................................19
PREPARATION .............................................. ....19
Special Service Tools .......................................... ....19
Commercial Service Tools ......................................19
SYSTEM DESCRIPTION .............................21
COMPONENT PARTS ................................... ....21
Component Parts Location ................................ ....21
ECM ........................................................................25
Accelerator Pedal Position Sensor ...................... ....25
Electric Throttle Control Actuator ........................ ....25
Ignition Coil With Power Transistor .........................26
Fuel Injector ........................................................ ....26
Fuel Level Sensor Unit and Fuel Pump .............. ....26
Fuel Tank Temperature Sensor .......................... ....27
Mass Air Flow Sensor (With Intake Air Tempera-
ture Sensor) ........................................................ ....
27
Manifold Absolute Pressure Sensor ........................28
Engine Coolant Temperature Sensor .................. ....28
Crankshaft Position Sensor (POS) ..........................29
Camshaft Position Sens or (PHASE) .......................29
Intake Valve Timing Cont rol Solenoid Valve ...........30
Intake Valve Timing Intermediate Lock Control
Solenoid Valve .................................................... ....
30
Exhaust Valve Timing Control Position Sensor .......30
Exhaust Valve Timing Control Solenoid Valve ........31
Intake Manifold Runner Control Valve ................. ....31
Intake Manifold Tuning Valve ..................................31
Air Fuel Ratio (A/F) Sensor 1 ..................................32
Heated Oxygen Sensor 2 ........................................32
Knock Sensor ..........................................................33
Engine Oil Pressure Sensor ....................................33
Engine Oil Temperature Sensor .......................... ....33
Cooling Fan .............................................................34
EVAP Canister .........................................................34
EVAP Canister Purge Volu me Control Solenoid
Valve .................................................................... ....
34
EVAP Canister Vent Control Valve ..........................35
EVAP Control System Pres sure Sensor ..................35
Battery Current Sensor (With Battery Tempera-
ture Sensor) ......................................................... ....
35
Malfunction Indicator lamp (MIL) .............................36
Oil Pressure Warning Lamp ....................................36
Refrigerant Pressure Sensor ............................... ....36
Stop Lamp Switch & Brake Pedal Position Switch ....36
ASCD Steering Switch .............................................37
Information Display ..................................................37
STRUCTURE AND OPERATION .....................38
Positive Crankcase Ventilation ................................38
On Board Refueling Vapor Recovery (ORVR) ........39
SYSTEM ............................................................40
ENGINE CONTROL SYSTEM ........................ ...........40
ENGINE CONTROL SYSTEM : System Descrip-
tion ....................................................................... ....
40
ENGINE CONTROL SYSTEM : Fail Safe ..............41
MULTIPORT FUEL INJECTION SYSTEM ................43
MULTIPORT FUEL INJECTION SYSTEM : Sys-
tem Description (with auto matic air conditioner) ......
43
MULTIPORT FUEL INJECTION SYSTEM : Sys-
tem Description (with manual air conditioner) .........
46
ELECTRIC IGNITION SYSTEM .................................48
ELECTRIC IGNITION SYSTEM : System De-
scription ............................................................... ....
48
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM