2014 NISSAN TEANA belt

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CHG-1
ELECTRICAL & POWER CONTROL
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SECTION CHG
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CONTENTS
CHARGING SYSTEM
PRECAUTION ................
...............................3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
Precaution for Power Generation Voltage Variable
Control System .................................................... ......
3
PREPARATION ............................................4
PREPARATION .............................................. .....4
Special Service Tool ........................................... ......4
Commercial Service Tool ..........................................4
SYSTEM DESCRIPTION ..............................5
COMPONENT PARTS ................................... .....5
QR25DE ................................................................. ......5
QR25DE : Component Parts Location ......................5
QR25DE : Component Description ...........................6
VQ35DE ................................................................. ......6
VQ35DE : Component Parts Location ......................7
VQ35DE : Component Description ...........................8
CHARGING SYSTEM ..................................... .....9
System Diagram .................................................. ......9
System Description ...................................................9
Component Description ............................................9
POWER GENERATION VOLTAGE VARI-
ABLE CONTROL SYSTEM ............................ ....
10
System Diagram .................................................. ....10
System Description .................................................10
Component Description ...........................................10
WIRING DIAGRAM ......................................12
CHARGING SYSTEM ..................................... ....12
Wiring Diagram ................................................... ....12
BASIC INSPECTION ...................................17
DIAGNOSIS AND REPAIR WORKFLOW ........17
Work Flow (With EXP-800 NI or GR8-1200 NI) .......17
Work Flow (Without EXP-80 0 NI or GR8-1200 NI) ....20
DTC/CIRCUIT DIAGNOSIS .........................23
CHARGING SYSTEM PRELIMINARY IN-
SPECTION ....... ................................ .................
23
Diagnosis Procedure ........................................... ....23
POWER GENERATION VOLTAGE VARI-
ABLE CONTROL SYSTEM OPERATION IN-
SPECTION ....... ................................ .................
24
Diagnosis Procedure ........................................... ....24
B TERMINAL CIRCUIT .....................................26
Description ...............................................................26
Diagnosis Procedure ...............................................26
L TERMINAL CIRCUIT (OPEN) ........................27
Description ...............................................................27
Diagnosis Procedure ...............................................27
L TERMINAL CIRCUIT (SHORT) .....................29
Description ...............................................................29
Diagnosis Procedure ...............................................29
S TERMINAL CIRCUIT .....................................30
Description ...............................................................30
Diagnosis Procedure ...............................................30
SYMPTOM DIAGNOSIS ..............................31
CHARGING SYSTEM .......................................31
Symptom Table ................................................... ....31
REMOVAL AND INSTALLATION ...............32
GENERATOR ....................................................32
Removal and Installation ..................................... ....32
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

CHG
PRECAUTIONSCHG-3
< PRECAUTION >
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental
Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000009951598
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. Information necessary to service t he system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery and wait at least three mi nutes before performing any service.
Precaution for Power Generation Voltage Variable Control SystemINFOID:0000000009460643
CAUTION:
For this model, the battery current sensor that is in stalled to the battery cable at the negative terminal
measures the charging/discharging cu rrent of the battery, and performs various controls. If the electri-
cal component or the ground wire is connected direct ly to the battery terminal, the current other than
that being measured with the battery current sensor is charging to or discharging from the battery.
This condition causes the malfunction of the control, and then the battery discharge may occur. Do
not connect the electrical component or the gr ound wire directly to the battery terminal.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

CHG
CHARGING SYSTEM PRELIMINARY INSPECTIONCHG-23
< DTC/CIRCUIT DIAGNOSIS >
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DTC/CIRCUIT DIAGNOSIS
CHARGING SYSTEM PRELIMINARY INSPECTION
Diagnosis ProcedureINFOID:0000000009460659
1.CHECK BATTERY TERMINALS CONNECTION
Check if battery terminals are clean and tight.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair battery terminal connection. Confirm repair by performing complete Charging system test
using EXP-800 NI or GR8-1200 NI (if available). Refer to the applicable Instruction Manual for
proper testing procedures.
2.CHECK FUSE
Check for blown fuse and fusible link.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace the blown fuse or fusible link after repairing the affected circuit.
3.CHECK GENERATOR GROUND TERMINAL CONNECTION
Check if connector F7 terminal 4 is clean.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair connection.
4.CHECK DRIVE BELT TENSION
Check drive belt tension. Refer to CHG-32, "Removal and Installation"
.
Is the inspection result normal?
YES >> Inspection End.
NO >> Repair as needed.
Unit Power source (Power supply terminals) Fuse or Fusible Link
Generator Battery (terminal 3) Fuse 62
Battery (terminal 1) Fusible Link A
Combination meter Ignition switch ON (terminal 2) Fuse 31
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

CHG-32
< REMOVAL AND INSTALLATION >
GENERATOR
REMOVAL AND INSTALLATION
GENERATOR
Removal and InstallationINFOID:0000000009460670
QR25DE
Removal
1. Disconnect the battery negative terminal. Refer to PG-7, "ADDITIONAL SERVICE WHEN REMOVING
BATTERY NEGATIVE TERMINAL : Special Repair Requirement".
2. Remove fender protector side cover (RH). Refer to EXT-26, "FENDER PROTECTOR : Removal and
Installation".
3. Remove drive belt. Refer to EM-19, "Removal and Installation"
.
4. Remove engine room cover. Refer to EM-28, "Removal and Installation"
.
5. Remove "B" terminal nut.
6. Disconnect the harness connectors from the generator.
7. Remove generator bolts using power tools.
8. Remove generator assembly upward.
9. Remove generator bracket bolts using power tools.
10. Remove generator bracket.
Installation
Installation is in the reverse order of removal.
CAUTION:
Be sure to tighten "B" terminal nut carefully.
• Install generator and check tension of belt. Refer to EM-19, "Checking Drive Belts"
.
ALMIA0578GB
1-2. Tightening sequence 3. Generator 4-6. Tightening sequence
7. Generator bracket Front
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

CHG-34
< REMOVAL AND INSTALLATION >
GENERATOR
Be sure to tighten "B" terminal nut carefully.
• Install generator and check tension of belt. Refer to EM-134, "Checking Drive Belts"
.
• This model is equipped with a power generation voltage variable control system. Therefore, perform an
inspection of the power generation voltage variable cont rol system operation after replacing the generator.
Refer to CHG-10, "System Description"
.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

CO-1
ENGINE
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SECTION CO
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CONTENTS
ENGINE COOLING SYSTEM
QR25DE
PRECAUTION ................ ...............................
3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
Precaution for Liquid Gasket .....................................3
PREPARATION ............................................5
PREPARATION .............................................. .....5
Special Service Tool ........................................... ......5
Commercial Service Tool ..........................................5
SYSTEM DESCRIPTION ..............................7
COOLING SYSTEM ....................................... .....7
Cooling Circuit ..................................................... ......7
Schematic .................................................................8
OVERHEATING CAUSE ANALYSIS ..................9
Troubleshooting Chart ...............................................9
PERIODIC MAINTENANCE .........................11
ENGINE COOLANT ....................................... ....11
System Inspection ............................................... ....11
Changing Engine Coolant .......................................12
REMOVAL AND INSTALLATION ...............16
RADIATOR ..................................................... ....16
Exploded View .................................................... ....16
Removal and Installation .........................................17
Inspection ............................................................ ....17
COOLING FAN ...................................................18
Exploded View .................................................... ....18
Removal and Installation .........................................18
WATER PUMP ............................................... ....20
Exploded View ..................................................... ....20
Removal and Installation .........................................20
THERMOSTAT AND THERMOSTAT HOUS-
ING ....................................................................
22
Exploded View ..................................................... ....22
Removal and Installation .........................................22
WATER OUTLET AND WATER PIPING ..........24
Exploded View .........................................................24
Removal and Installation .........................................24
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .............................................
26
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
26
Capacity ............................................................... ....26
Thermostat ..............................................................26
Radiator ...................................................................26
VQ35DE
PRECAUTION ...... ........................................
27
PRECAUTIONS .................................................27
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
27
Precaution for Liquid Gasket ...................................27
PREPARATION ...........................................29
PREPARATION .................................................29
Special Service Tool ............................................ ....29
Commercial Service Tool ........................................29
SYSTEM DESCRIPTION .............................31
COOLING SYSTEM ..........................................31
Cooling Circuit ..................................................... ....31
Schematic ................................................................32
Revision: November 20132014 Altima NAM

PRECAUTIONSCO-3
< PRECAUTION > [QR25DE]
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental
Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000009951689
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. Information necessary to service t he system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery and wait at least three mi nutes before performing any service.
Precaution for Liquid GasketINFOID:0000000009460384
REMOVAL OF LIQUID GASKET
• After removing the bolts and nuts, separate the mating surface and
remove the liquid gasket using Tool (A).
CAUTION:
Be careful not to damage the mating surfaces.
• In areas where the cutter is difficult to use, use a plastic hammer to lightly tap (1) the cutter where the liquid gasket is applied. Use a
plastic hammer to slide (2) the cutter by tapping on the side.
CAUTION:
Do not damage the mating surfaces.
LIQUID GASKET APPLICATION PROCEDURE
1. Using a scraper, remove the old liquid gasket adhering to the gasket application surface and the mating surface.
• Remove the liquid gasket completely from the groove of the
gasket application surface, mounting bolts, and bolt holes.
2. Thoroughly clean the gasket application surface and the mating surface and remove adhering moisture, grease and foreign
materials.
3. Attach the liquid gasket tube to the tube presser. Use Genuine Silicone RTV Seal ant or equivalent. Refer to
GI-21, "Recommended Chemical Products and Sealants"
.
Tool Number (A): KV10111100 (J-37228)
AWBIA1249GB
PBIC0003E
Revision: November 20132014 Altima NAM

OVERHEATING CAUSE ANALYSISCO-9
< SYSTEM DESCRIPTION > [QR25DE]
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OVERHEATING CAUSE ANALYSIS
Troubleshooting ChartINFOID:0000000009460389
Symptom Check items
Cooling sys-
tem parts
malfunction Poor heat transfer
Water pump malfunction Worn or loose drive belt
—
Thermostat stuck closed Coolant circulation
Damaged fins Dust contamination or rock
clogging
Mechanical damage
Clogged radiator cooling
tube Excess foreign material
(rust, dirt, sand, etc.)
Reduced air flow Cooling fan does not oper-
ate
Engine cooling fans —
High resistance to fan rota-
tion
Damaged fan blades
Damaged radiator shroud — Radiator shroud —
Improper coolant mixture
ratio — Coolant viscosity —
Poor coolant quality — Periodic maintenance —
Insufficient coolant Coolant leaks Cooling hose
Loose clamp
Cracked hose
Water pump Poor sealing
Radiator cap Loose
Poor sealing
Radiator O-ring for damage, deterio-
ration or improper fitting
Cracked radiator tank
Cracked radiator core
Reservoir tank Cracked reservoir tank
Overflowing reservoir tank Exhaust gas leaks into cool-
ing system Cylinder head deterioration
Cylinder head gasket deteri-
oration
Revision: November 20132014 Altima NAM