check engine NISSAN PATHFINDER 2003 R50 / 2.G Service Manual

which are sold commercially. Many of these
additives intended for gum, varnish or deposit
removal may contain active solvents or similar
ingredients that can be harmful to the fuel sys-
tem and engine.Octane rating tipsIn most parts of North America, you should use
unleaded gasoline with an octane rating of at
least 91 AKI (Anti-Knock Index) number
(VQ35DE engine) or 87 AKI (Anti-knock Index)
number (VG33E engine). However, you may use
unleaded gasoline with an octane rating as low
as 85 AKI (Anti-Knock Index) number in these
high altitude areas [over 4,000 ft (1,219 m)]
such as: Colorado, Montana, New Mexico, Utah,
Wyoming, northeastern Nevada, southern Idaho,
western South Dakota, western Nebraska, and
that part of Texas which is directly south of New
Mexico.
Using unleaded gasoline with an octane
rating lower than stated above can cause
persistent, heavy spark knock. (Spark
knock is a metallic rapping noise.) If se-
vere, this can lead to engine damage. If you
detect a persistent heavy spark knock even
when using gasoline of the stated octane
rating, or if you hear steady spark knock
while holding a steady speed on level
roads, have your dealer correct the condi-tion. Failure to correct the condition is
misuse of the vehicle, for which NISSAN is
not responsible.
Incorrect ignition timing will result in knocking,
after-run or overheating. This in turn may cause
excessive fuel consumption or damage to the
engine. If any of the above symptoms are en-
countered, have your vehicle checked at a
NISSAN dealer or other competent service fa-
cility.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This is no
cause for concern, because you get the
greatest fuel benefit when there is light
spark knock for a short time.
Technical and consumer information
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03.1.28/R50-D/V5


This could result in loss of control
and cause personal injury.
PAYLOAD WEIGHT CAPACITYThe payload weight capacity is the maximum
total weight of passengers, optional equipment
(air conditioning, trailer hitch, etc.) and cargo
that your vehicle is designed to carry.
Before driving a loaded vehicle, confirm that you
do not exceed the Gross Vehicle Weight Rating
(GVWR) or the Gross Axle Weight Rating
(GAWR) for your vehicle. See “Vehicle loading
information” earlier in this section for details.
Also check tires for proper inflation pressures.
See the tire placard affixed to the glove box lid.
Payload Weight Capacity Unit: lb(kg)
VQ35DE
2WD 4WD
Automatic and
Manual Trans-
missionAutomatic and
Manual Trans-
mission
XE, SE, LE
US 980 (445) 970 (440)
Canada — 945 (430)
MEASUREMENT OF WEIGHTSSecure loose items to prevent weight shifts that
could affect the balance of your vehicle. When
the vehicle is loaded, drive to a scale and weight
the front and the rear wheels separately to
determine axle loads. Individual axle loads
should not exceed either of the gross axle weight
ratings (GAWR). The total of the axle loads
should not exceed the gross vehicle weight
rating (GVWR). These ratings are given on the
vehicle certification label that is located on the
driver’s door lock pillar. If weight ratings are
exceeded, move or remove items to bring all
weights below the ratings.
CAUTION
Overloading can shorten the life of your
vehicle. Failures caused by overloading
are not covered by your warranty.Your new vehicle was designed to be used
primarily to carry passengers and cargo. Re-
member that towing a trailer will place additional
loads on your vehicle’s engine, drive train, steer-
ing, braking and other systems.
ANissan Trailer Towing Guide (US only)is
available from an authorized NISSAN dealer.
This guide includes information on trailer towing
ability and the special equipment required for
proper towing.
MAXIMUM LOAD LIMITS
Maximum trailer loadsNever allow the total trailer load to exceed the
CA0009
TOWING A TRAILERTechnical and consumer information
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After the hitch is removed, seal the
bolt holes to prevent exhaust fumes,
water or dust from entering the pas-
senger compartment.

Regularly check all hitch mounting
bolts are securely mounted.

To reduce the possibility of addi-
tional damage if your vehicle is
struck from the rear, where practical,
remove the hitch and/or receiver
when not in use.

Never connect a trailer brake system
directly to the vehicle brake system.Tire pressures
When towing a trailer, inflate the vehicle tires
to the recommended cold tire pressure indi-
cated on the tire placard (affixed to the glove
box lid).

Trailer tire condition, size, load rating and
proper inflation pressure should be in accor-
dance with the trailer and tire manufacturers’
specifications.Safety chains
Always use a suitable chain between your ve-
hicle and the trailer. The chain should be
crossed and should be attached to the hitch, not
to the vehicle bumper or axle. Be sure to leave
enough slack in the chain to permit turning
corners.Trailer lightsTrailer lights should comply with Federal and/or
local regulations.
When wiring vehicle for towing connection,
connect stop and tail light pickup into the
vehicle electrical circuit at point between
the sensor and stop light switch or light
switch.Trailer brakesIf your trailer is equipped with a braking system,
make sure it conforms to Federal and/or local
regulations and that it is properly installed.
WARNING
Never connect a trailer brake system
directly to the vehicle brake system.Trailer towing tipsIn order to gain skill and an understanding of thevehicle’s behavior, you should practice turning,
stopping and backing up in an area which is free
from traffic. Steering stability and braking perfor-
mance will be somewhat different than under
normal driving conditions.

Always secure items in the trailer to prevent
load shift while driving.

Avoid abrupt starts, acceleration or stops.

Avoid sharp turns or lane changes.

Always drive your vehicle at a moderate
speed.

Always block the wheels on both vehicle and
trailer when parking. Parking on a slope is not
recommended; however, if you must do so,
and if your vehicle is equipped with automatic
transmission, first block the wheels and apply
the parking brake, and then move the trans-
mission selector lever into the P position. If
you move the selector lever to the P position
before blocking the wheels and applying the
parking brake, transmission damage could
occur.

When going down a hill, shift into a lower
gear and use the engine braking effect.
When ascending a long grade, downshift the
transmission to a lower gear and reduce
speed to reduce chances of engine overload-
ing and/or overheating.
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03.1.28/R50-D/V5


10 Index
A
ABS (Anti-lock brake system)................................ 5-34
Air bag system, Front (See supplemental front air
bag system) ................................................................ 1-16
Air bag warning labels ............................................. 1-21
Air bag warning light .................................... 1-21, 2-13
Air cleaner housing filter.......................................... 8-23
Air conditioner
Air conditioner operation ..................................... 4-4
Air conditioner specification label .................. 9-14
Air conditioning system refrigerant and
lubricant recommendations ..................... 4-12, 9-7
Heater and air conditioner controls.................. 4-2
Servicing air conditioner ................................... 4-12
Air flow charts............................................................... 4-5
Alcohol, drugs and driving......................................... 5-5
Anchor point locations
Top tether strap .................................................. 1-44
Antenna ........................................................................ 4-29
Anti-lock Brake System (ABS) .............................. 5-34
Anti-lock brake warning light .................................... 2-9
Appearance care
Exterior appearance care .................................... 7-2
Interior appearance care ..................................... 7-3
Armrest (if so equipped) ............................................ 1-9
Ashtray (See cigarette lighter and ashtray) ........ 2-29
ATP warning light ...................................................... 2-10
Audible reminders ..................................................... 2-16Audio operation precautions .................................. 4-14
Audio system .............................................................. 4-13
Steering wheel audio controls ........................ 4-28
Autochanger
Compact Disc (CD) ........................................... 4-26
Automatic
Automatic transmission fluid (ATF) ................ 8-16
Drive positioner ................................................... 3-17
Driving with automatic transmission ..... 5-7, 5-11
Seat positioner, seat .......................................... 3-17
Transmission park warning light ..................... 2-10
Transmission selector lever lock release ...... 5-14
Avoiding collision and rollover .................................. 5-5
B
Back door.................................................................... 3-10
Battery .......................................................................... 8-21
Battery saver system ......................................... 2-22
Battery replacement, (See remote keyless entry
system) ........................................................................... 3-8
Before starting the engine ...................................... 5-10
Belts (See drive belts) ............................................. 8-22
Brake
Anti-lock brake system (ABS) ......................... 5-34
Brake and clutch fluid ....................................... 8-19
Brake booster ...................................................... 8-26
Brake fluid............................................................. 8-19
Brake pedal .......................................................... 8-25Brake pedal check ............................................. 8-26
Brake system ....................................................... 5-34
Parking brake check............................... 5-17, 8-25
Parking brake operation .................................... 5-17
Warning light .......................................................... 2-9
Break-in schedule ..................................................... 5-20
Bulbcheck/instrument panel .................................... 2-9
Bulbreplacement ...................................................... 8-30
C
Capacities and recommended fuel/lubricants...... 9-2
Car phone or CB radio............................................ 4-31
Cargo (See vehicle loading information)............. 2-36
Cargo net .................................................................... 2-36
Cassette player (See audio system) ........ 4-18, 4-25
Catalytic converter, Three way catalyst ................. 5-3
CD care and cleaning .............................................. 4-28
Child restraints ........................................................... 1-32
Installation on front passenger seat............... 1-45
Installation on rear seat outboard
positions ................................................................ 1-37
Installation on rear seat center position........ 1-34
Precautions on child restraints........................ 1-32
Top tether strap anchor point locations ....... 1-44
With top tether strap ......................................... 1-43
Child safety ................................................................. 1-25
Child safety rear door lock ........................................ 3-4
Chimes, Audible reminders..................................... 2-16


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Cigarette lighter and ashtray .................................. 2-29
Circuit breaker, Fusible link .................................... 8-27
Cleaning exterior and interior .......................... 7-2, 7-3
Clock ............................................................................ 2-27
Clutch
Fluid........................................................................ 8-19
Cold weather driving ................................................ 5-37
Compact Disc (CD) changer operation .............. 4-26
Compact Disc (CD) player (See audio
system) ......................................................................... 4-19
Compact spare tire ................................................... 8-39
Compass display ......................................................... 2-7
Console box................................................................ 2-33
Controls
Heater and air conditioner controls.................. 4-2
Steering wheel audio controls ........................ 4-28
Coolant
Capacities and recommended fuel/
lubricants ................................................................. 9-2
Changing engine coolant ................................. 8-10
Checking engine coolant level........................... 8-9
Corrosion protection ................................................... 7-4
Cover, Tonneau cover .............................................. 2-36
Cruise control............................................................. 5-18
Cup holders ................................................................ 2-31
D
Daytime running light system ................................. 2-23
Defogger switch, Glass hatch and outside mirror
defogger switch ......................................................... 2-20
Determining vehicle payload capacity.................. 9-15
Dimensions and weights ......................................... 9-11
Door open warning light .......................................... 2-11Drive belts ................................................................... 8-22
Drive positioner, Automatic..................................... 3-17
Driving
Cold weather driving ......................................... 5-37
Driving with automatic transmission ..... 5-7, 5-11
Driving with manual transmission .......... 5-8, 5-15
On-pavement and offroad driving ..................... 5-4
Precautions when starting and driving ............ 5-2
Safety precautions ................................................ 5-5
E
Economy, Fuel............................................................ 5-20
Electric sunroof .......................................................... 2-40
Emission control information label ........................ 9-14
Emission control system warranty......................... 9-22
Engine
Before starting the engine................................ 5-10
Capacities and recommended fuel/
lubricants ................................................................. 9-2
Changing engine coolant ................................. 8-10
Changing engine oil ........................................... 8-14
Changing engine oil filter ................................. 8-15
Checking engine coolant level........................... 8-9
Checking engine oil level ................................. 8-13
Coolant temperature gauge ............................... 2-4
Engine block heater ........................................... 5-39
Engine compartment check locations.............. 8-7
Engine cooling system ......................................... 8-9
Engine oil .............................................................. 8-13
Engine oil and oil filter recommendation......... 9-6
Engine oil viscosity ............................................... 9-6
Engine serial number ......................................... 9-13
Engine specifications ........................................... 9-9If your vehicle overheats ................................... 6-11
Starting the engine............................................. 5-10
Exhaust gas (Carbon monoxide).............................. 5-2
F
4WD shift switch operations ................................. 5-28
F.M.V.S.S. certification label................................... 9-13
Filter, Air cleaner housing filter .............................. 8-23
Flashers (See hazard warning flasher switch) ... 2-25
Flat tire............................................................................ 6-2
Floor mat cleaning ....................................................... 7-4
Fluid
Automatic transmission fluid (ATF) ................ 8-16
Brake and clutch fluid ....................................... 8-19
Brake fluid............................................................. 8-19
Capacities and recommended fuel/
lubricants ................................................................. 9-2
Engine coolant ....................................................... 8-9
Engine oil .............................................................. 8-13
Power steering fluid ........................................... 8-18
Window washer fluid ......................................... 8-20
FM-AM radio with cassette player and Compact
Disc (CD) player........................................................ 4-16
FM-AM-SATELLITE radio with cassette player and
Compact Disc (CD) player/CD changer............. 4-23
Fog light switch ......................................................... 2-24
Four wheel drive (4WD) .............................. 5-21, 5-25
Front air bag system (See supplemental restraint
system) ......................................................................... 1-16
Front fog light switch ............................................... 2-24
Front manual seat adjustment .................................. 1-2
Front power seat adjustment .................................... 1-4


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10-2

Vanity mirror light ................................................ 2-43
Warning/indicator lights and audible
reminders ..................................................... 2-9, 2-14
Loading information (See vehicle loading
information) ................................................................. 9-15
Lock
Door locks ............................................................... 3-2
Glass hatch lock ................................................. 3-11
Glove box lock..................................................... 2-32
Power door lock .................................................... 3-2
Low fuel warning light ............................................ 2-12
Low tire pressure warning light (if so
equipped) .................................................................... 2-12
Low tire pressure warning system (if so
equipped).............................................................. 5-3, 6-2
Luggage hooks .......................................................... 2-34
Luggage rack ............................................................. 2-37
M
Maintenance
Battery ................................................................... 8-21
General maintenance ........................................... 8-2
Inside the vehicle................................................... 8-3
Maintenance precautions .................................... 8-5
Outside the vehicle............................................... 8-2
Seat belt maintenance ...................................... 1-32
Under the hood and vehicle ............................... 8-4
Manual front seat adjustment ................................... 1-2
Meters and gauges ..................................................... 2-3
Mirror
Inside mirror ......................................................... 3-16
Outside mirror control ....................................... 3-16
Outside mirrors ................................................... 3-16N
Net, Cargo net ........................................................... 2-36
New vehicle break-in ................................................ 5-20
Nissan vehicle Immobilizer System....................... 2-16
Nissan Vehicle Immobilizer System, Engine
start.................................................................................. 5-9
O
Odometer ....................................................................... 2-3
Oil
Capacities and recommended fuel/
lubricants ................................................................. 9-2
Changing engine oil ........................................... 8-14
Changing engine oil filter ................................. 8-15
Checking engine oil level ................................. 8-13
Engine oil .............................................................. 8-13
Engine oil viscosity ............................................... 9-6
Outside mirror control .............................................. 3-16
Outside mirrors .......................................................... 3-16
Outside temperature display..................................... 2-6
Overdrive switch........................................................ 5-14
Overheat, If your vehicle overheats ...................... 6-11
P
Parking
Brake check ......................................................... 8-25
Parking brake check .......................................... 5-17
Parking brake operation .................................... 5-17
Parking on hills .................................................... 5-17
Parking/parking on hills ........................................... 5-32Payload weight capacity.......................................... 9-17
Personal lights............................................................ 2-43
Phone, Car phone or CB radio ............................. 4-31
Power
Front seat adjustment .......................................... 1-4
Power door lock .................................................... 3-2
Power outlet ......................................................... 2-28
Power steering fluid ........................................... 8-18
Power steering system ...................................... 5-33
Power windows................................................... 2-38
Pre-tensioner seat belt system .............................. 1-20
Precautions
Audio operation precautions............................ 4-14
Braking precautions ........................................... 5-34
Cruise control operations ................................. 5-19
Cruise control precautions ............................... 5-18
Driving safety .......................................................... 5-5
Maintenance precautions .................................... 8-5
On child restraints .............................................. 1-32
On seat belt usage ............................................ 1-24
On-pavement and offroad driving
precautions ............................................................. 5-4
Precautions on supplemental restraint
system.................................................................... 1-10
Precautions when starting and driving ............ 5-2
Push starting .............................................................. 6-11
R
Rack, Luggage rack.................................................. 2-37
Radio
Car phone or CB radio ..................................... 4-31
Steering wheel audio controls ........................ 4-28


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