Mazda B4000 4WD Truck (2004 year). Manual

• The vehicle must be towed in the forward position to ensure no

damage is done to the internal transfer case components.

In addition, it is recommended that you follow the instructions
provided by the aftermarket manufacturer of the towing
apparatus if one has been installed.

4x2 equipped with automatic transmission and 4x4 vehicles:

4x2 vehicles with automatic transmissions or 4x4 vehicles with an
electronic-shift transfer case and automatic transmission, follow these
guidelines for recreational towing:
• Release the parking brake.
• Turn the key in the ignition to the OFF/UNLOCKED position.
• Place the transmission in N (Neutral).
• Do not exceed a distance of 80 km (50 miles).
• Do not exceed 56 km/h (35 mph) vehicle speed.
• The vehicle must be towed in the forward position to ensure no

damage is done to the internal transfer case components.

If a distance of 80 km (50 miles) or a speed of 56 km/h (35 mph) must
be exceeded, you must disconnect the front (4x4 only) and rear
driveshafts. Mazda recommends the driveshafts be removed/installed only
by a qualified technician. See your local dealer for driveshaft
removal/installation.

Improper removal/installation of the driveshaft can cause
transmission fluid or transfer case fluid loss, damage to the
driveshaft and internal transmission and transfer case
components.

CAMPER BODIES

Your pickup is not recommended for slide–in camper bodies.

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136

HAZARD FLASHER

The hazard flasher is located on the
steering column, just behind the
steering wheel. The hazard flashers
will operate when the ignition is in
any position or if the key is not in
the ignition.

Push in the flasher control and all
front and rear direction signals will
flash. Press the flasher control again
to turn them off. Use it when your
vehicle is disabled and is creating a
safety hazard for other motorists.

Note: With extended use, the flasher may run down your battery.

FUEL PUMP SHUT-OFF SWITCH

This device stops the electric fuel pump from sending fuel to the engine
when your vehicle has had a substantial jolt.

After an accident, if the engine cranks but does not start, this switch
may have been activated.

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This switch is located under the
right-hand side of the glove box,
just above the carpet.

To reset the switch:

1. Turn the ignition OFF.

2. Check the fuel system for leaks.

3. If no leaks are apparent, reset

the switch by pushing in on the
reset button.

4. Turn the ignition ON.

5. Wait a few seconds and return

the key to OFF.

6. Make another check of leaks.

FUSES AND RELAYS

Fuses

If electrical components in the
vehicle are not working, a fuse may
have blown. Blown fuses are
identified by a broken wire within
the fuse. Check the appropriate
fuses before replacing any electrical
components.

Note: Always replace a fuse with one that has the specified amperage
rating. Using a fuse with a higher amperage rating can cause severe wire
damage and could start a fire.

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Standard fuse amperage rating and color

COLOR

Fuse

rating

Mini

fuses

Standard

fuses

Maxi

fuses

Cartridge

maxi

fuses

Fuse link

cartridge

Grey

—

Violet

—

Pink

—

Tan

—

7.5A

Brown

—

10A

Red

—

15A

Blue

—

20A

Yellow

Blue

25A

Natural

—

30A

Green

Pink

40A

—

Orange

Green

50A

—

Red

60A

—

Blue

—

Yellow

70A

—

Tan

—

Brown

80A

—

Natural

—

Black

Passenger compartment fuse panel

The fuse panel is located under the
right-hand side of the instrument
panel behind the kick panel.

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The fuses are coded as follows:

Fuse/Relay

Location

Fuse Amp

Rating

Passenger Compartment Fuse

Panel Description

Instrument panel dimmer switch

10A

Trailer tow park lamps

10A

Right low beam headlamp

10A

Left low beam headlamp

30A

Windshield wipers/washer

10A

Radio (RUN/ACCY)

Headlamp illumination indicator

10A

Restraints Control Module (RCM),
PADI (Passenger Air bag
Deactivation Indicator)

Cluster air bag indicator

10A

Cluster (RUN/START), 4x4
module (RUN/START)

Fuse/Relay

Location

Fuse Amp

Rating

Passenger Compartment Fuse

Panel Description

10A

Passenger compartment fuse
panel (Logic power)

—

Not used

15A

Horn, Interior lamps

15A

High beam headlamp, High beam
indicator (cluster)

—

One-touch down relay

30A cartridge

fuse

Power windows

15A

Turn signals/Hazards

—

Not used

20A

Center High-Mounted Stop Lamp
(CHMSL)/Stop lamps

10A

Anti-lock Brake System (ABS)
module, Brake-shift interlock,
Speed control module, Back-up
lamps, Overdrive cancel switch,
Electronic flasher (turn/hazard)

Starter relay

Spare

30A

Headlamps (low and high beam)

20A

Radio

—

Accessory relay

Brake pressure switch

10A

Climate control blower relay/blend
doors, 4x4 module

15A

4x4 module B+

20A

Cigar lighter, Diagnostic connector
(OBD II)

Power mirrors

20A

Front park lamps, Rear park
lamps, License plate lamps

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Fuse/Relay

Location

Fuse Amp

Rating

Passenger Compartment Fuse

Panel Description

Brake switch (logic)

Instrument cluster

20A

Power point

15A

Power locks

Power distribution box

The power distribution box is
located in the engine compartment.
The power distribution box contains
high-current fuses that protect your
vehicle’s main electrical systems
from overloads.

WARNING: Always disconnect the battery before servicing
fuses.

WARNING: To reduce risk of electrical shock, always replace
the cover to the Power Distribution Box before reconnecting
the battery or refilling fluid reservoirs.

If the battery has been disconnected and reconnected, refer to the
Battery section of the Maintenance and specifications chapter.

2.3L engine (if equipped)

The high-current fuses are coded as follows:

Fuse/Relay

Location

Fuse Amp

Rating

Power Distribution Box

Description

50A**

Passenger compartment fuse
panel

—

Not used

50A**

Passenger compartment fuse
panel

—

Not used

50A**

Passenger compartment fuse
panel

—

Not used

40A**

Starter relay fuse

—

Not used

40A**

Ignition switch

—

Not used

30A**

Powertrain Control Module
(PCM), Engine sensors

56 B

56 A

50 B

50 A

45 B

45 A

46 B

46 A

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Fuse/Relay

Location

Fuse Amp

Rating

Power Distribution Box

Description

—

Not used

30A**

Blower motor (climate control)

—

Not used

30A**

Anti-lock Brake System (ABS)
(solenoids)

—

Not used

40A**

ABS (motor)

—

Not used

20A**

Engine fan

—

Not used

10A*

PCM

—

Not used

20A*

Fuel pump

—

Not used

10A*

A/C clutch solenoid

—

Not used

—

Not used

—

Not used

—

Not used

—

Not used

—

Not used

—

Not used

—

Not used

—

Not used

—

Not used

—

Not used

—

Not used

7.5A*

Trailer tow (right turn)

—

Not used

—

Not used

15A*

HEGOs

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Fuse/Relay

Location

Fuse Amp

Rating

Power Distribution Box

Description

7.5A*

Trailer tow (left turn)

—

Not used

—

Not used

45A

—

Wiper HI/LO relay

45B

—

Wiper Park/Run relay

46A

—

Fuel pump relay

46B

—

Washer pump relay

—

Engine fan relay

—

Starter relay

—

Not used

—

Not used

—

Not used

—

Not used

—

Not used

—

PCM relay

—

Blower relay

56A

—

A/C clutch solenoid relay

56B

—

Not used

* Mini Fuses ** Maxi Fuses

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3.0L and 4.0L engines (if equipped)

The high-current fuses are coded as follows:

Fuse/Relay

Location

Fuse Amp

Rating

Power Distribution Box

Description

50A**

Passenger compartment fuse
panel

—

Not used

50A**

Passenger compartment fuse
panel

—

Not used

50A**

Passenger compartment fuse
panel

—

Not used

40A**

Starter relay fuse

—

Not used

40A**

Ignition switch

—

Not used

30A**

Powertrain Control Module (PCM)
relay fuse

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Fuse/Relay

Location

Fuse Amp

Rating

Power Distribution Box

Description

—

Not used

30A**

Blower motor (climate control)

—

Not used

30A**

Anti-lock Brake System (ABS)
(solenoids)

—

Not used

40A**

ABS (motor)

—

Not used

—

Not used

—

Not used

10A*

PCM

—

Not used

20A*

Fuel pump

—

Not used

10A*

A/C clutch solenoid

—

Not used

20A*

4x4 module

—

Not used

—

Not used

—

Not used

15A*

Foglamps

—

Not used

—

Not used

—

Not used

—

Not used

—

Not used

—

Not used

7.5A*

Trailer tow (right turn)

—

Not used

—

Not used

15A*

HEGOs

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Fuse/Relay

Location

Fuse Amp

Rating

Power Distribution Box

Description

7.5A*

Trailer tow (left turn)

—

Not used

—

Not used

45A

—

Wiper HI/LO relay

45B

—

Wiper Park/Run relay

46A

—

A/C clutch solenoid

46B

—

Washer pump relay

—

PCM relay

48A

—

Fuel pump relay

48B

—

Fog lamp relay

—

Not used

—

Not used

—

Not used

—

Not used

—

Blower relay

—

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.

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• If steam is coming from the engine compartment:do not go near

the front of the vehicle. Stop the engine, then turn the ignition switch
to the ON position without starting the engine. The radiator cooling
fans will start to cool the engine.

• If 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.

See Adding coolant in the Maintenance and specifications section. 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 damage your tires.

Temporary spare tire information (if equipped)

Your vehicle may be equipped with a conventional spare tire that may be
different in size (smaller diameter and narrower width) than other tires
on your vehicle. If this is the case, your spare tire is considered
“temporary” and the spare wheel will be labeled as such. Replace this
tire with a tire of the same size, speed rating and load carrying capacity
as the other road tires as soon as possible.

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It is not recommended that the vehicle be operated in 4WD modes with
a “temporary” (i.e. dissimilar size) spare. If 4WD operation is necessary,
do not operate above speeds of 16 km/h (10 mph) or for distances above
80 km (50 miles).

WARNING: If you use the temporary spare tire continuously or
do not follow these precautions, the tire could fail, causing you
to lose control of the vehicle, possibly injuring yourself or
others.

When driving with the temporary spare tire do not:
• exceed 80 km/h (50 mph) or drive further than 3,200 km (2,000

miles) total under any circumstances

• load the vehicle beyond maximum vehicle load rating listed on the

Safety Compliance Label

• tow a trailer
• use more than one temporary spare tire at a time
Use of a temporary spare tire at any one wheel location can lead to
impairment of the following:
• Handling, stability and braking performance
• Comfort and noise
• Ground clearance and parking at curbs
• Winter driving capability

Conventional spare tire information (if equipped)

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.

Location of the spare tire and tools

The spare tire and tools for your vehicle are stowed in the following
locations:

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Tool

Location

Spare tire

Under the vehicle, just forward of
the rear bumper

Jack, jack handle, wheel nut

wrench

Regular Cab: behind seats and
underneath the jack and tools
cover

Cab Plus: stowed in the passenger
side rear cab compartment or
behind the jump seat in a separate
tool bag

Cab Plus 4–Door: stowed behind
the front seats, between jump
seats and underneath jack and
tools cover.

Key, spare tire lock (if equipped)

In the glove box

Removing the spare tire

1. Assemble the jack handle to the lug wrench as shown in the

illustrations.

When connecting the jack handle, assemble the following:
• one handle extension and one

typical extension. To assemble,
slide parts together. To
disconnect, depress button and
pull apart.

• one wheel nut wrench. Depress

button and slide together.

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Mazda B4000 4WD Truck (2004 year). Manual - part 9