2004 MAZDA MODEL B4000 4WD TRUCK engine

4x4 w/automatic transmission
Engine Rear axle
ratioMaximum
GCWR - kg
(lbs.)Maximum
trailer
weight - kg
(lbs.)Maximum
frontal area
of trailer -
m
2(ft2)
Regular Cab
3.0L 3.73 2,722 (6,000) 1,043 (2,300) 4.64 (50)
4.0L All 4,309 (9,500) 2,595 (5,720) 4.64 (50)
Cab Plus/Cab Plus 4
4.0L All 4,309 (9,500) 2,522 (5,560) 4.64 (50)
For high altitude operation, reduce GCW by 2% per 300 meters (1,000
ft.) of elevation.
For definition of terms used in this table, seeVehicle loadingearlier
in this chapter.
To determine maximum trailer weight designed for your vehicle, see
Calculating the load your vehicle can carry/towearlier in this
chapter.
Maximum trailer weight is shown. The combined weight of the
completed towing vehicle (including hitch, passengers and cargo) and
the loaded trailer must not exceed the Gross Combined Weight Rating
(GCWR).
WARNING: Do not exceed the GVWR or the GAWR specified on
the certification label.
The certification label is found on the driver's door latch pillar.
WARNING: Towing trailers beyond the maximum recommended
gross trailer weight exceeds the limit of the vehicle and could
result in engine damage, transmission damage, structural
damage, loss of vehicle control, vehicle rollover and personal
injury.
Preparing to tow
Use the proper equipment for towing a trailer and make sure it is
properly attached to your vehicle. See your dealer or a reliable trailer
dealer if you require assistance.
Driving
131

Trailer tow connector
Color Function Comment
3. Tan/White Tail lamp Relay controlled circuit
activated when the park
lamps/headlamps are on.
4. White Ground Matching vehicle circuit
returns to battery's negative
ground.
Driving while you tow
When towing a trailer:
²Turn off the speed control. The speed control may shut off
automatically when you are towing on long, steep grades.
²Consult your local motor vehicle speed regulations for towing a trailer.
²To eliminate excessive shifting, use a lower gear. This will also assist
in transmission cooling. (For additional information, refer to the
Driving with a 5±speed automatic transmissionsection in this
chapter.)
²Under extreme conditions with large frontal trailers, high outside
temperatures and highway speeds, the coolant gauge may indicate
higher than normal coolant temperatures. If this occurs, reduce speed
until the coolant temperature returns to the normal range. Refer to
Engine coolant temperature gaugein theInstrument cluster
chapter.
²Anticipate stops and brake gradually.
²Do not exceed the GCWR rating or transmission damage may occur.
Servicing after towing
If you tow a trailer for long distances, your vehicle will require more
frequent service intervals. Refer to your service maintenance section for
more information.
Trailer towing tips
²Practice turning, stopping and backing up before starting on a trip to
get the feel of the vehicle trailer combination. When turning, make
wider turns so the trailer wheels will clear curbs and other obstacles.
²Allow more distance for stopping with a trailer attached.
²The trailer tongue weight should be 10±15% of the loaded trailer
weight.
Driving
134

²After you have traveled 80 km (50 miles), thoroughly check your
hitch, electrical connections and trailer wheel lug nuts.
²To aid in engine/transmission cooling and A/C efficiency during hot
weather while stopped in traffic, place the gearshift lever in P (Park)
(automatic transmission) or N (Neutral) (manual transmissions).
²Vehicles with trailers should not be parked on a grade. If you must
park on a grade, place wheel chocks under the trailer's wheels.
Launching or retrieving a boat
Disconnect the wiring to the trailer before backing the trailer
into the water. Reconnect the wiring to the trailer after the
trailer is removed from the water.
When backing down a ramp during boat launching or retrieval:
²do not allow the static water level to rise above the bottom edge of
the rear bumper.
²do not allow waves to break higher than 15 cm (6 inches) above the
bottom edge of the rear bumper.
Exceeding these limits may allow water to enter vehicle components:
²causing internal damage to the components.
²affecting driveability, emissions and reliability.
Replace the rear axle lubricant any time the axle has been submerged in
water. Rear axle lubricant quantities are not to be checked or changed
unless a leak is suspected or repair required.
RECREATIONAL TOWING
Follow these guidelines if you have a need for recreational towing. An
example of recreational towing would be towing your vehicle behind a
motorhome. These guidelines are designed to ensure that your
transmission is not damaged.
4x2 equipped with a manual transmission:
Before you have your vehicle towed:
²Release the parking brake.
²Move the gearshift to the neutral position.
²Turn the key in the ignition to the OFF/UNLOCKED position.
²The maximum recommended speed is 88 km/h (55 mph).
²The maximum recommended distance is unlimited.
Driving
135

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.
Roadside Emergencies
Roadside Emergencies
137

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
32 5A Brake switch (logic)
33 5A Instrument cluster
34 20A Power point
35 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
Batterysection of theMaintenance and specificationschapter.

2.3L engine (if equipped)
The high-current fuses are coded as follows:
Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
1 50A** Passenger compartment fuse
panel
2 Ð Not used
3 50A** Passenger compartment fuse
panel
4 Ð Not used
5 50A** Passenger compartment fuse
panel
6 Ð Not used
7 40A** Starter relay fuse
8 Ð Not used
9 40A** Ignition switch
10 Ð Not used
11 30A** Powertrain Control Module
(PCM), Engine sensors
1234521 22 23 24
25 26 27 28
29 30 31 32
33 34 35 36
37 38 39 40
41 42 43 44
67891055
49 4854 53 52
515656 B
56 A
5050 B
50 A 47 4545 B
45 A
4646 B
46 A 11 12 13 14 15
16 17 18 19 20
Roadside Emergencies
143

Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
12 Ð Not used
13 30A** Blower motor (climate control)
14 Ð Not used
15 30A** Anti-lock Brake System (ABS)
(solenoids)
16 Ð Not used
17 40A** ABS (motor)
18 Ð Not used
19 20A** Engine fan
20 Ð Not used
21 10A* PCM
22 Ð Not used
23 20A* Fuel pump
24 Ð Not used
25 10A* A/C clutch solenoid
26 Ð Not used
27 Ð Not used
28 Ð Not used
29 Ð Not used
30 Ð Not used
31 Ð Not used
32 Ð Not used
33 Ð Not used
34 Ð Not used
35 Ð Not used
36 Ð Not used
37 Ð Not used
38 7.5A* Trailer tow (right turn)
39 Ð Not used
40 Ð Not used
41 15A* HEGOs
Roadside Emergencies
144

Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
42 7.5A* Trailer tow (left turn)
43 Ð Not used
44 Ð Not used
45A Ð Wiper HI/LO relay
45B Ð Wiper Park/Run relay
46A Ð Fuel pump relay
46B Ð Washer pump relay
47 Ð Engine fan relay
48 Ð Starter relay
49 Ð Not used
50 Ð Not used
51 Ð Not used
52 Ð Not used
53 Ð Not used
54 Ð PCM relay
55 Ð Blower relay
56A Ð A/C clutch solenoid relay
56B Ð Not used
* Mini Fuses ** Maxi Fuses
Roadside Emergencies
145