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2009 NISSAN ALTIMA Service Repair Manual.pdf
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QUICK REFERENCE INDEX
A GENERAL INFORMATION GI General Information
B ENGINE EM Engine Mechanical
LU Engine Lubrication System
CO Engine Cooling System
EC Engine Control System
FL Fuel System
EX Exhaust System
STR Starting System
ACC Accelerator Control System
C HYBRID HBC Hybrid Control System
HBB Hybrid Battery System
HBR Hybrid Brake System
D TRANSMISSION & DRIVE-
LINE
CL Clutch
TM Transaxle & Transmission
DLN Driveline
FAX Front Axle
RAX Rear Axle
E SUSPENSION FSU Front Suspension
RSU Rear Suspension
SCS Suspension Control System
WT Road Wheels & Tires
F BRAKES BR Brake System
PB Parking Brake System
BRC Brake Control System
G STEERING ST Steering System
STC Steering Control System
H RESTRAINTS SB Seat Belt
SBC Seat Belt Control System
SR SRS Airbag
SRC SRS Airbag Control System
I VENTILATION, HEATER &
AIR CONDITIONER
VTL Ventilation System
HA Heater & Air Conditioning System
HAC Heater & Air Conditioning Control System
J BODY INTERIOR INT Interior
IP Instrument Panel
SE Seat
ADP Automatic Drive Positioner
K BODY EXTERIOR,
DOORS, ROOF & VEHICLE
SECURITY
DLK Door & Lock
SEC Security Control System
GW Glass & Window System
PWC Power Window Control System
RF Roof
EXT Exterior
BRM Body Repair Manual
L DRIVER CONTROLS MIR Mirrors
EXL Exterior Lighting System
INL Interior Lighting System
WW Wiper & Washer
DEF Defogger
HRN Horn
M ELECTRICAL & POWER
CONTROL
PWO Power Outlet
BCS Body Control System
LAN LAN System
PCS Power Control System
CHG Charging System
PG Power Supply, Ground & Circuit Elements
N DRIVER INFORMATION &
MULTIMEDIA
MWI Meter, Warning Lamp & Indicator
WCS Warning Chime System
SN Sonar System
AV Audio, Visual & Navigation System
O CRUISE CONTROL CCS Cruise Control System
P MAINTENANCE MA Maintenance
All rights reserved. No part
of this Service Manual may
be reproduced or stored in a
retrieval system, or transmit-
ted in any form, or by any
means, electronic, mechani-
cal, photo-copying, record-
ing or otherwise, without the
prior written permission of
Nissan North America, Inc.
Edition: July 2008
Revision:July 2008
Publication No. SM9E-1L32U0
2. FOREWORD
This manual contains maintenance and repair procedure for the 2009
NISSAN ALTIMA.
In order to assure your safety and the efficient functioning of the vehicle,
this manual should be read thoroughly. It is especially important that the
PRECAUTIONS in the GI section be completely understood before starting
any repair task.
All information in this manual is based on the latest product information
at the time of publication. The right is reserved to make changes in specifi-
cations and methods at any time without notice.
IMPORTANT SAFETY NOTICE
The proper performance of service is essential for both the safety of
the technician and the efficient functioning of the vehicle.
The service methods in this Service Manual are described in such a
manner that the service may be performed safely and accurately.
Service varies with the procedures used, the skills of the technician
and the tools and parts available. Accordingly, anyone using service
procedures, tools or parts which are not specifically recommended
by NISSAN must first be completely satisfied that neither personal
safety nor the vehicle’s safety will be jeopardized by the service
method selected.
3. 2009
QUICK REFERENCE CHART: ALTIMA
QUICK REFERENCE CHART: ALTIMA
Engine Tune-up Data: QR25DE INFOID:0000000001881075
GENERAL SPECIFICATIONS
SPARK PLUG
Unit: mm. (in)
Engine Tune-up Data: VQ35DE INFOID:0000000001881076
GENERAL SPECIFICATIONS
Cylinder arrangement In-line 4
Displacement cm3
(in3
) 2,488 (151.82)
Bore and stroke mm. (in) 89.0 x 100 (3.50 x 3.94)
Valve arrangement DOHC
Firing order 1-3-4-2
Number of piston rings
Compression 2
Oil 1
Compression ratio 9.5:1
Compression pressure
kPa (kg/cm2, psi) / 250 rpm
Standard 1,250 (12.8, 181.3)
Minimum 1,060 (10.8, 153.7)
Differential limit between cylinders
100 (1.0, 14)
Valve timing
Unit: degree
a b c d e f
220° 232° -12° 64° 10° 30°
PBIC0187E
Make NGK
Type Standard DILKAR6A-11
Gap (nominal) 1.1 (0.043)
Cylinder arrangement V-6
Displacement cm3
(in3
) 3,498 (213.45)
Bore and stroke mm (in) 95.5 x 81.4 (3.76 x 3.205)
Valve arrangement DOHC
Firing order 1-2-3-4-5-6
4. QUICK REFERENCE CHART: ALTIMA
2009
SPARK PLUG
Front Wheel Alignment (Unladen*) INFOID:0000000003301441
SEDAN
Number of piston rings
Compression 2
Oil 1
Number of main bearings 4
Compression ratio 10.3:1
Compression pressure kPa
(kg/cm2, psi)/300 rpm
Standard 1,275 (13.0, 185)
Minimum 981 (10.0, 142)
Differential limit be-
tween cylinders
98 (1.0, 14)
Cylinder number
Valve timing (IVTC - OFF)
Unit: degree
a b c d e f
240° 240° - 10° 70° 10° 50°
SEM713A
PBIC0187E
Make DENSO
Type FXE20HR11
Gap (nominal) 1.1 mm (0.043 in)
Market USA/Canada Mexico
Engine type QR25DE and VQ35DE QR25DE and VQ35DE
Tire size 215/60R16 215/55R17 215/60R16 215/55R17
5. 2009
QUICK REFERENCE CHART: ALTIMA
: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
COUPE
: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
Camber
Degree minute (Decimal degree)
LH
Minimum -1°15′ (-1.25°) -1°09′ (-1.15°)
Nominal -0°30′ (-0.50°) -0°24′ (-0.40°)
Maximum 0°15′ (0.25°) 0°21′ (0.35°)
RH
Minimum -1°30′ (-1.50°) -1°24′ (-1.40°)
Nominal -0°45′ (-0.75°) -0°39′ (-0.65°)
Maximum 0°00′ (0.00°) -0°06′ (-0.10°)
Leftand right difference -0°15′ ± 0° 33′ (-0.25°± 0.55°)
Caster
Degree minute (Decimal degree)
Minimum 4°15′ (4.25°) 3°57′ (3.95°)
Nominal 5°00′ (5.00°) 4°42′ (4.70°)
Maximum 5°45′ (5.75°) 5°27′ (5.45°)
Left and right dif-
ference
0° 33′ (0.55°)
Kingpin offset
Degree minute (Decimal degree)
Minimum 12°00′ (12.00°) 11°50′ (11.83°)
Nominal 12°45′ (12.75°) 12°35′ (12.58°)
Maximum 13°30′ (13.50°) 13°20′ (13.33°)
Total toe-in
Distance (A - B)
Minimum 0 mm (0 in)
Nominal 1 mm (0.05 in)
Maximum 2 mm (0.10 in)
Market USA/Canada Mexico
Engine type QR25DE and VQ35DE VQ35DE
Tire size 215/60R16 215/55R17 215/55R17
Camber
Degree minute (Decimal degree)
LH
Minimum -1°15′ (-1.25°) -1°09′ (-1.15°)
Nominal -0°30′ (-0.50°) -0°24′ (-0.40°)
Maximum 0°15′ (0.25°) 0°21′ (0.35°)
RH
Minimum -1°30′ (-1.50°) -1°24′ (-1.40°)
Nominal -0°45′ (-0.75°) -0°39′ (-0.65°)
Maximum 0°00′ (0.00°) -0°06′ (-0.10°)
Left and right difference (-0.25° ± 0.55°)
Caster
Degree minute (Decimal degree)
Minimum 4°15′ (4.25°) 3°57′ (3.95°)
Nominal 5°00′ (5.00°) 4°42′ (4.70°)
Maximum 5°45′ (5.75°) 5°27′ (5.45°)
Left and right dif-
ference
33′ (0.55°)
Kingpin offset
Degree minute (Decimal degree)
Minimum 12°00′ (12.00°) 11°50′ (11.83°)
Nominal 12°45′ (12.75°) 12°35′ (12.58°)
Maximum 13°30′ (13.50°) 13°20′ (13.33°)
Total toe-in
Distance (A - B)
Minimum 0 mm (0 in)
Nominal 1 mm (0.05 in)
Maximum 2 mm (0.10 in)
6. QUICK REFERENCE CHART: ALTIMA
2009
Rear Wheel Alignment (Unladen*) INFOID:0000000003301443
SEDAN
*: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
COUPE
*: Fuel, engine coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
Market USA and Canada Mexico
Camber
Degree minute (Decimal degree)
Minimum −1° 07′ (−1.12°) -0° 17′ (-0.28°)
Nominal −0° 37′ (−0.62°) 0° 13′ (0.22°)
Maximum −0° 07′ (−0.12°) 0° 43′ (0.72°)
Total toe-in
Distance (A - B)
mm (in)
2.4 (0.09)
Distance difference
between RH and LH side
mm (in)
Minimum −2 (−0.08)
Nominal 0 (0)
Maximum 2 (0.08)
Angle (left plus right)
Degree minute (decimal degree)
0° 6’ (110°) 0° 6’ (108°)
SFA234AC
Market USA and Canada Mexico
Camber
Degree minute (Decimal degree)
Minimum −1° 24′ (−1.394°) −0° 35′ (−0.584°)
Nominal −0° 54′ (−0.894°) −0° 5′ (−0.084°)
Maximum −0° 24′ (−0.394°) 0° 25′ (0.416°)
Total toe-in
Distance (A − B)
mm (in)
2.5 (0.10)
Distance difference
between RH and LH side
mm (in)
Minimum −2 (−0.08)
Nominal 0 (0)
Maximum 2 (0.08)
Angle (left plus right)
Degree minute (decimal degree)
0° 6′ (0.112°)
SFA234AC
7. 2009
QUICK REFERENCE CHART: ALTIMA
Wheelarch Height (Unladen*1) INFOID:0000000003301442
SEDAN
Unit: mm (in)
*1: Fuel, engine coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
*2: Without ABS
*3: With ABS
COUPE
Unit: mm (in)
*1: Fuel, engine coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
*2: Without ABS
*3: With ABS
Market USA Canada Mexico
Engine QR25DE *2 QR25DE *3 QR25DE *2 QR25DE *3 QR25DE *3
Tire size 215/60R16 215/60R16 215/60R16 215/60R16 215/60R16
Front (Hf) 716 (28.19) 717 (28.23) 714 (28.11) 715 (28.15) 727 (28.62)
Rear (Hr) 710 (27.95) 710 (27.95) 715 (28.15) 715 (28.15) 730 (28.74)
Market USA Canada Mexico
Engine VQ35DE *3 VQ35DE *3 VQ35DE *3 VQ35DE *3 VQ35DE *3
Tire size 215/60R16 215/55R17 215/60R16 215/55R17 215/55R17
Front (Hf) 716 (28.19) 715 (28.15) 714 (28.11) 713 (28.07) 725 (28.54)
Rear (Hr) 710 (27.95) 710 (27.95) 715 (28.15) 714 (28.11) 730 (28.74)
SFA818A
Market USA Canada Mexico
Engine QR25DE *2 QR25DE *3 VQ35DE QR25DE *2 QR25DE *3 VQ35DE VQ35DE
Tire size 215/60R16 215/60R16 215/55R17 215/60R16 215/60R16 215/55R17 215/55R17
Front (Hf) 714 (28.11) 715 (28.15) 713 (28.07) 712 (28.03) 713 (28.07) 711 (27.99) 723 (28.46)
Rear (Hr) 702 (27.54) 702 (27.64) 702 (27.64) 706 (27.80) 706 (27.80) 706 (27.80) 742 (29.21)
SFA818A
8. QUICK REFERENCE CHART: ALTIMA
2009
Brake Specifications INFOID:0000000003301444
Unit: mm (in)
Brake Pedal INFOID:0000000003301445
Front Disc Brake INFOID:0000000003301446
Rear Disc Brake INFOID:0000000003301447
Front brake
Brake model Kiriu
Cylinder bore diameter 57.2 (2.25)
Pad length × width × thickness 132 × 50 × 11 (5.20 × 1.969 × 0.433)
Rotor outer diameter × thickness 296 × 26 (11.70 × 1.02)
Rear brake
Brake model Kiriu
Cylinder bore diameter 34.93 (1.375)
Pad length × width × thickness 83.0 × 31.9 × 8.5 (3.268 × 1.256 × 0.335)
Rotor outer diameter × thickness 292 × 9 (11.50 × 0.35)
Master cylinder Cylinder bore diameter 25.4 (1)
Control valve Valve model Electric brake force distribution
Brake booster
Booster model Bosch
Diaphragm diameter 280 (11)
Recommended brake fluid DOT 3
Brake pedal height (from dash lower panel top surface)
CVT 190.7 - 202.7 mm (7.51 - 7.98 in)
M/T 181.3 -193.3 mm (7.14 - 7.61 in)
Depressed pedal height [under a force of 490 N (50 kg-f, 110
lb-f) with engine running]
CVT 60.7 - 72.7 mm (2.39 - 2.86 in)
M/T 51.3 - 63.3 mm (2.02 - 2.49 in)
Clearance between stopper rubber and threaded end of the stop lamp
switch and brake switch
0.74 - 1.96 mm (0.0291 - 0.0772 in)
Pedal play 3 - 11 mm (0.12 - 0.43 in)
Brake model Kiriu
Brake pad
Standard thickness (new) 11.0 mm (0.433 in)
Repair limit thickness 2.0 mm (0.079 in)
Disc rotor
Standard thickness (new) 26.0 mm (1.024 in)
Repair limit thickness 24.0 mm (0.945 in)
Thickness variation (measured at 8 positions) 0.015 mm (0.0006 in)
Maximum runout (with it attached to the vehicle) 0.035 mm (0.0014 in)
Brake model Kiriu
Brake pad
Standard thickness (new) 8.5 mm (0.335 in)
Repair limit thickness 1.0 mm (0.039 in)
Disc rotor
Standard thickness (new) 9.0 mm (0.354in)
Repair limit thickness 8.0 mm (0.315 in)
Thickness variation (measured at 8 positions) 0.015 mm (0.0006 in)
Maximum runout (with it attached to the vehicle) 0.05 mm (0.002 in)
9. 2009
QUICK REFERENCE CHART: ALTIMA
Fluids and Lubricants INFOID:0000000003301448
Description Capacity (Approximate)
US measure Imp measure Liter
Fuel
QR25DE 20 gal 16-5/8 gal 75.6
VQ35DE 20 gal 16-5/8 gal 75.6
Engine oil
Drain and refill
With oil filter
change
QR25DE 4-7/8 qt 4 qt 4.6
VQ35DE 4-1/2 qt 3-3/4 qt 4.2
Without oil filter
change
QR25DE 4-1/2 qt 3-3/4 qt 4.3
VQ35DE 4-1/4 qt 3-1/2 qt 4.0
Dry engine (Overhaul)
QR25DE 5-3/4 qt 4-3/4 qt 5.4
VQ35DE 4-7/8 qt 4 qt 4.6
Cooling system
with reservoir tank
QR25DE 2 gal 1-5/8 gal 7.6
VQ35DE 2-1/8 gal 1-3/4 gal 8.2
CVT fluid
RE0F09B 10-6/8 qt 9 qt 10.2
RE0F10A 8-3/4 qt 7-1/4 8.3
Manual transaxle fluid (MTF) 3-5/8 pt 3 pt 1.7
Power steering fluid (PSF) 1-1/8 qt 7/8 qt 1.0
Brake and clutch fluids — — —
Brake grease — — —
Brake pad plate grease — — —
Multi-purpose grease — — —
Air conditioning system refrigerant 1.10 ± 0.055 lb 0.50 ± 0.025 kg 0.50 ± 0.025 kg
Air conditioning system oil 5.03 fl oz 5.3 fl oz 150 m
Windshield washer fluid — — —
10. GI-1
GENERAL INFORMATION
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GI
SECTION GI
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CONTENTS
GENERAL INFORMATION
HOW TO USE THIS MANUAL ..................
.... 3
HOW TO USE THIS MANUAL .......................
..... 3
Description ..........................................................
......3
Terms ..................................................................
......3
Units ....................................................................
......3
Contents ..............................................................
......3
Relation between Illustrations and Descriptions .
......4
Components ........................................................
......4
HOW TO FOLLOW TROUBLE DIAGNOSES..... 6
Description ..........................................................
......6
How to Follow Test Groups in Trouble Diagnosis......6
Key to Symbols Signifying Measurements or Pro-
cedures ...............................................................
......7
HOW TO READ WIRING DIAGRAMS ...........
..... 9
Connector symbols .............................................
......9
Sample/wiring diagram -example- .......................
....10
Description ..........................................................
....11
ABBREVIATIONS ..........................................
....13
Abbreviation List ..................................................
....13
TIGHTENING TORQUE OF STANDARD
BOLTS ............................................................
....14
Tightening Torque Table .....................................
....14
RECOMMENDED CHEMICAL PRODUCTS
AND SEALANTS ............................................
....15
Recommended Chemical Products and Sealants
....15
TERMINOLOGY .............................................
....16
SAE J1930 Terminology List ...............................
....16
FEATURES OF NEW MODEL ..................
...20
IDENTIFICATION INFORMATION .................
....20
Model Variation - Sedan ......................................
....20
Model Variation - Coupe .....................................
....21
Identification Number - Sedan .............................
....22
Identification Number - Coupe ............................
....23
Identification Plate ...............................................
....24
Engine Serial Number .........................................
....24
CVT Number ........................................................
....25
Manual Transaxle Number ..................................
....25
Dimensions - Sedan ............................................
....25
Dimensions - Coupe ............................................
....25
Wheels & Tires ....................................................
....26
PRECAUTION ...........................................
...27
PRECAUTIONS .................................................27
Description ...........................................................
....27
Supplemental Restraint System (SRS) "AIR BAG"
and "SEAT BELT PRE-TENSIONER" .................
....27
Necessary for Steering Wheel Rotation After Bat-
tery Disconnect ....................................................
....27
Procedures without Cowl Top Cover ...................
....28
General Precautions ............................................
....28
Three Way Catalyst .............................................
....29
Fuel (Regular Unleaded Gasoline Recommend-
ed) QR25DE ........................................................
....30
Fuel (Unleaded Premium Gasoline Required)
VQ35DE ..............................................................
....30
Multiport Fuel Injection System or Engine Control
System .................................................................
....30
Hoses ..................................................................
....30
Engine Oils ..........................................................
....31
Air Conditioning ...................................................
....32
LIFTING POINT .................................................33
Special Service Tool ............................................
....33
Garage Jack and Safety Stand ............................
....33
2-Pole Lift ............................................................
....34
Board-on Lift ........................................................
....35
TOW TRUCK TOWING .....................................36
Tow Truck Towing ...............................................
....36
Vehicle Recovery (Freeing a Stuck Vehicle) .......
....36
BASIC INSPECTION ................................
...38
Revision: July 2008 2009 Altima
11. GI-2
SERVICE INFORMATION FOR ELECTRICAL
INCIDENT .......................................................
... 38
Work Flow ............................................................
... 38
Control Units and Electrical Parts ........................
... 38
How to Check Terminal .......................................
... 39
Intermittent Incident .............................................
... 42
Circuit Inspection .................................................
... 45
CONSULT-III CHECKING SYSTEM ...............
... 50
Description ...........................................................
... 50
Function and System Application .........................
... 50
CONSULT-III Data Link Connector (DLC) Circuit ... 51
Wiring Diagram - Coupe ......................................
... 52
Wiring Diagram - Sedan .......................................
... 53
Revision: July 2008 2009 Altima
12. HOW TO USE THIS MANUAL
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HOW TO USE THIS MANUAL
HOW TO USE THIS MANUAL
Description INFOID:0000000004205728
This volume explains “Removal, Disassembly, Installation, Inspection and Adjustment” and “Trouble Diag-
noses”.
Terms INFOID:0000000004205729
• The captions WARNING and CAUTION warn you of steps that must be followed to prevent personal injury
and/or damage to some part of the vehicle.
WARNING indicates the possibility of personal injury if instructions are not followed.
CAUTION indicates the possibility of component damage if instructions are not followed.
BOLD TYPED STATEMENTS except WARNING and CAUTION give you helpful information.
Standard value: Tolerance at inspection and adjustment.
Limit value: The maximum or minimum limit value that should not be exceeded at inspection and adjust-
ment.
Units INFOID:0000000004205730
• The UNITS given in this manual are primarily expressed as the SI UNIT (International System of Unit), and
alternatively expressed in the metric system and in the yard/pound system.
Also with regard to tightening torque of bolts and nuts, there are descriptions both about range and about the
standard tightening torque.
“Example”
Range
Standard
Contents INFOID:0000000004205731
• ALPHABETICAL INDEX is provided at the end of this manual so that you can rapidly find the item and page
you are searching for.
• A QUICK REFERENCE INDEX, a black tab (e.g. ) is provided on the first page. You can quickly find the
first page of each section by matching it to the section's black tab.
• THE CONTENTS are listed on the first page of each section.
• THE TITLE is indicated on the upper portion of each page and shows the part or system.
• THE PAGE NUMBER of each section consists of two or three letters which designate the particular section
and a number (e.g. “BR-5”).
• THE SMALL ILLUSTRATIONS show the important steps such as inspection, use of special tools, knacks of
work and hidden or tricky steps which are not shown in the previous large illustrations.
Assembly, inspection and adjustment procedures for the complicated units such as the automatic transaxle
or transmission, etc. are presented in a step-by-step format where necessary.
Outer Socket Lock Nut : 59 - 78 N·m (6.0 - 8.0 kg-m, 43 - 58 ft-lb)
Drive Shaft Installation Bolt : 44.3 N·m (4.5 kg-m, 33 ft-lb)
Revision: July 2008 2009 Altima
13. GI-4
< HOW TO USE THIS MANUAL >
HOW TO USE THIS MANUAL
Relation between Illustrations and Descriptions INFOID:0000000004205732
The following sample explains the relationship between the part description in an illustration, the part name in
the text and the service procedures.
Components INFOID:0000000004205733
• THE LARGE ILLUSTRATIONS are exploded views (see the following) and contain tightening torques, lubri-
cation points, section number of the PARTS CATALOG (e.g. SEC. 440) and other information necessary to
perform repairs.
The illustrations should be used in reference to service matters only. When ordering parts, refer to the appro-
priate PARTS CATALOG.
Components shown in an illustration may be identified by a circled number. When this style of illustration is
used, the text description of the components will follow the illustration.
SAIA0519E
Revision: July 2008 2009 Altima
14. Thank you very much for
your reading. Please Click
Here. Then Get COMPLETE
MANUAL. NO WAITING
NOTE:
If there is no response to
click on the link above,
please download the PDF
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click on it.
15. HOW TO USE THIS MANUAL
GI-5
< HOW TO USE THIS MANUAL >
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SYMBOLS
1. Union bolt 2. Copper washer 3. Brake hose
4. Cap 5. Bleed valve 6. Sliding pin bolt
7. Piston seal 8. Piston 9. Piston boot
10. Cylinder body 11. Sliding pin 12. Torque member mounting bolt
13. Washer 14. Sliding pin boot 15. Bushing
16. Torque member 17. Inner shim cover 18. Inner shim
19. Inner pad 20. Pad retainer 21. Pad wear sensor
22. Outer pad 23. Outer shim 24. Outer shim cover
1: PBC (Poly Butyl Cuprysil) grease
or silicone-based grease
2: Rubber grease : Brake fluid
Refer to GI section for additional symbol definitions.
SFIA2959E
SAIA0749E
Revision: July 2008 2009 Altima
16. GI-6
< HOW TO USE THIS MANUAL >
HOW TO FOLLOW TROUBLE DIAGNOSES
HOW TO FOLLOW TROUBLE DIAGNOSES
Description INFOID:0000000004205734
NOTICE:
Trouble diagnoses indicate work procedures required to diagnose problems effectively. Observe the following
instructions before diagnosing.
• Before performing trouble diagnoses, read the “Work Flow” in each section.
• After repairs, re-check that the problem has been completely eliminated.
• Refer to Component Parts and Harness Connector Location for the Systems described in each section for
identification/location of components and harness connectors.
• When checking circuit continuity, ignition switch should be OFF.
• Refer to the Circuit Diagram for quick pinpoint check.
If you need to check circuit continuity between harness connectors in more detail, such as when a sub-har-
ness is used, refer to Wiring Diagram in each individual section and Harness Layout in PG section for identi-
fication of harness connectors.
• Before checking voltage at connectors, check battery voltage.
• After accomplishing the Diagnosis Procedures and Electrical Components Inspection, make sure that all
harness connectors are reconnected as they were.
How to Follow Test Groups in Trouble Diagnosis INFOID:0000000004205735
1. Test group number and test group title
• Test group number and test group title are shown in the upper portion of each test group.
2. Work and diagnosis procedure
• Start to diagnose a problem using procedures indicated in enclosed test groups.
3. Questions and results
• Questions and required results are indicated in test group.
4. Action
• Next action for each test group is indicated based on result of each question.
JPAIA0021GB
Revision: July 2008 2009 Altima
17. HOW TO FOLLOW TROUBLE DIAGNOSES
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Key to Symbols Signifying Measurements or Procedures INFOID:0000000004205736
SAIA1539E
Revision: July 2008 2009 Altima