engine MAZDA MODEL B-SERIES 2003 (in English) Service Manual

3.0L and 4.0L engines (if equipped)
The high-current fuses are coded as follows:
Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box Description
1 50A** I/P fuse panel
2 Ð Not used
3 Ð Not used
4 Ð Not used
5 Ð Not used
6 50A** Anti-lock Brake System (ABS) Pump
Motor
7 30A* Powertrain Control Module (PCM)
8 20A* Power door locks, Remote entry
9 Ð Not used
10 Ð Not used
11 50A** Starter relay, Ignition switch
12 20A* Power windows
13 20A* 4x4 motor
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Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box Description
44 Ð Not used
45A Ð Wiper HI/LO relay
45B Ð Wiper park/run relay
46A Ð Fuel pump relay
46B Ð Trailer tow relay
47A Ð A/C clutch solenoid relay
47B Ð Front washer pump relay
48A Ð Fog lamps
48B Ð Fog lamp relay
51 Ð Not used
52 Ð Not used
53 Ð Powertrain Control Module (PCM) Diode
54 Ð Powertrain Control Module (PCM)
55 Ð Blower relay
56 Ð Starter relay
* Mini Fuses ** Maxi Fuses
OVERHEATING
If the temperature gauge indicates overheating and you experience
power loss, you hear a loud knocking or pinging noise, the engine is
probably too hot.
If this happens:
1. Drive safely to the side of the road and park off the right-of-way.
2. Shift the automatic transmission into P (Park) or the manual
transmission into the neutral position, and apply the parking brake.
3. Turn off the air conditioner.
WARNING: Steam from an overheated engine is dangerous. The
escaping steam could seriously burn you. Open the hood ONLY
after steam is no longer escaping from the engine.
4. Check whether coolant or steam is escaping from under the hood or
from the engine compartment.
²If steam is coming from the engine compartment:do not go near
the front of the vehicle. Stop the engine, then turn the ignition switch
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to the ON position without starting the engine. The radiator cooling
fans will start to cool the engine.
²If neither coolant nor steam is escaping:open the hood and idle
the engine until it cools. If this does not lower the temperature, stop
the engine and let it cool.
5. Check the coolant level. If it is low, look for leaks in the radiator
hoses and connections, heater hoses and connections, radiator and
water pump.
If you find a leak or other damage, or if coolant is still leaking, stop the
engine and call an Authorized Mazda dealer.
SeeAdding coolantin theMaintenance and specificationssection. If
you find no problems, the engine is cool and no leaks are obvious,
carefully add coolant as required.
WARNING: When the engine and radiator are hot, scalding
coolant and steam may shoot out under pressure and cause
serious injury. Do not remove the cooling system cap when the
engine and radiator are hot.
Note:If the engine continues to overheat or frequently overheats, have
the cooling system inspected. The engine could be seriously damaged
unless repairs are made.
CHANGING THE TIRES
If you get a flat tire while driving, do not apply the brake heavily.
Instead, gradually decrease your speed. Hold the steering wheel firmly
and slowly move to a safe place on the side of the road.
WARNING: The use of tire sealants is not recommended and
may compromise the integrity of your tires.
Conventional spare tire information
If you have the conventional spare tire, you can use it as a spare or a
regular tire. The spare is identical to the other tires on your vehicle,
although the wheel may not match.
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4. If your vehicle is equipped with P265/75 R15 AT tires, do not stow a
flat or inflated full size spare tire in the spare tire carrier. The flat
full size tire should be stowed and tied down in the pickup box bed
until it can be repaired.
5. If removed, install the spare tire carrier lock on the access hole
above the bumper.
Tire change procedure
WARNING: When one of the front wheels is off the ground, the
transmission alone will not prevent the vehicle from moving or
slipping off the jack, even if the vehicle is in P (Park)
(automatic transmission) or R (Reverse) (manual
transmission).
WARNING: To prevent the vehicle from moving when you
change a tire, be sure the parking brake is set, then block (in
both directions) the wheel that is diagonally opposite (other
side and end of the vehicle) to the tire being changed.
WARNING: If the vehicle slips off the jack, you or someone
else could be seriously injured.
1. Park on a level surface, activate
hazard flashers and place
gearshift lever in P (Park)
(automatic transmission) or 1
(First) (manual transmission).
2. Set the parking brake and turn
engine OFF.
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3. Block the diagonally opposite
wheel.
4. Insert tapered end of the lug
wrench behind hub caps and
twist them off.
5. Loosen each wheel lug nut
one-half turn counterclockwise
but do not remove them until
the wheel is raised off the
ground.
6. Position the jack according to
the following guides and turn
the jack handle clockwise until the tire is a maximum of 25 mm
(1 inch) off the ground.
WARNING: To lessen the risk
of personal injury, do not put
any part of your body under
the vehicle while changing a
tire. Do not start the engine
when your vehicle is on the
jack. The jack is only meant
for changing the tire.
²Front
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Preparing your vehicle
When the battery is disconnected or a new battery is installed, the
transmission must relearn its shift strategy. As a result, the transmission
may have firm and/or soft shifts. This operation is considered normal and
will not affect function or durability of the transmission. Over time, the
adaptive learning process will fully update transmission operation.
1.Use only a 12±volt supply to start your vehicle.
2. Do not disconnect the battery of the disabled vehicle as this could
damage the vehicle's electrical system.
3. Park the booster vehicle close to the hood of the disabled vehicle
making sure the two vehiclesdo nottouch. Set the parking brake on
both vehicles and stay clear of the engine cooling fan and other
moving parts.
4. Check all battery terminals and remove any excessive corrosion
before you attach the battery cables. Ensure that vent caps are tight
and level.
5. Turn the heater fan on in both vehicles to protect any electrical
surges. Turn all other accessories off.
Connecting the jumper cables
1. Connect the positive (+) booster cable to the positive (+) terminal of
the discharged battery.
Note:In the illustrations,lightning boltsare used to designate the
assisting (boosting) battery.
+–+–
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4. Make the final connection of the negative (-) cable to an exposed
metal part of the stalled vehicle's engine, away from the battery and
the carburetor/fuel injection system.Do notuse fuel lines, engine
rocker covers or the intake manifold asgroundingpoints.
WARNING: Do not connect the end of the second cable to the
negative (-) terminal of the battery to be jumped. A spark may
cause an explosion of the gases that surround the battery.
5. Ensure that the cables are clear of fan blades, belts, moving parts of
both engines, or any fuel delivery system parts.
Jump starting
1. Start the engine of the booster vehicle and run the engine at
moderately increased speed.
2. Start the engine of the disabled vehicle.
3. Once the disabled vehicle has been started, run both engines for an
additional three minutes before disconnecting the jumper cables.
+–+–
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3. Remove the jumper cable from the positive (+) terminal of the
booster vehicle's battery.
4. Remove the jumper cable from the positive (+) terminal of the
disabled vehicle's battery.
After the disabled vehicle has been started and the jumper cables
removed, allow it to idle for several minutes so the engine computer can
relearnits idle conditions.
+–+–
+–+–
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ADD-ON NON-GENUINE PARTS AND ACCESSORIES
Non-genuine parts and accessories for Mazda vehicles can be found in
stores. These may fit your vehicle, but they are not approved by the
manufacturer for use with Mazda vehicles. When you install non-genuine
parts or accessories, they could affect your vehicle's performance or
safety system; the manufacturer's warranty doesn't cover this. Before you
install any non-genuine parts or accessories, consult an Authorized
Mazda Dealer.
WARNING: Installation of Non-Genuine Parts or Accessories:
Installation of non-genuine parts or accessories could be
dangerous. Improperly designed parts or accessories could
seriously affect your vehicle's performance or safety system.
This could cause you to have an accident or increase your
chances of injuries in an accident. Always consult an Authorized
Mazda Dealer before you install non-genuine parts or
accessories.
WARNING: Add-On Electrical and Electronic Equipment:
Incorrectly choosing or installing improper add-on equipment or
choosing an improper installer could be dangerous. Essential
systems could be damaged, causing engine stalling, air-bag
(SRS) activation, ABS inactivation, or a fire in the vehicle. Be
very careful in choosing and installing add-on electrical
equipments, such as mobile telephones, two-way radios, stereo
systems, and car alarm systems.
Mazda assumes no responsibility for death, injury, or expenses that may
result from the installation of add-on non-genuine parts or accessories.
WARRANTIES FOR YOUR MAZDA
²New Vehicle Limited Warranty
²Safety Restraint System Limited Warranty
²Anti-perforation Limited Warranty
²Federal Emission Control Warranty
± Emission Defect Warranty
± Emission Performance Warranty
²California Emission Control Warranty (if applicable)
²Replacement Parts and Accessories Limited Warranty
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²Tire Warranty
NOTE:Detailed warranty information is provided with your Mazda
portfolio.
OUTSIDE THE UNITED STATES AND CANADA
Government regulations in the United States require that automobiles
meet specific emission regulations and safety standards. Therefore,
vehicles built for use in the United States, its territories, and Canada may
differ from those sold in other countries.
The differences may make it difficult or even impossible for your vehicle
to receive satisfactory servicing in other countries. We strongly
recommend that you NOT take your Mazda outside these areas.
You may have these problems if you do:
²Recommended fuel may be unavailable. Any kind of leaded fuel or
low-octane fuel will affect vehicle performance and damage the
emission controls and engine.
²Proper repair facilities, tools, testing equipment, and replacement
parts may not be available.
The manufacturer's warranty applies only to Mazda vehicles registered
and normally operated in the United States, its territories, and Canada.
REPORTING SAFETY DEFECTS
If you believe that your vehicle has a defect which could cause a crash or
could cause injury or death, you should immediately inform the National
Highway Traffic Safety Administration (NHTSA) in addition to notifying
Mazda Motor Corporation (Your Mazda Importer/Distributor).
If NHTSA receives similar complaints, it may open an investigation, and
if it finds that a safety defect exists in a group of vehicles, it may order a
recall and remedy campaign. However NHTSA cannot become involved in
individual problems between you, your dealer, or Mazda Motor
Corporation (Your Mazda Importer/Distributor).
To contact NHTSA, you may either call the Auto Safety Hotline toll-free
at 1 (800) 424±9393 (or 366±0123 in Washington, D.C. area) or write to:
NHTSA, U.S. Department of Transportation. Washington, D.C. 20590. You
can also obtain other information about motor vehicle safety from the
Hotline.
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