2003 MAZDA MODEL B-SERIES engine

Calculating the load your vehicle can carry/tow
1. Use the appropriate maximum GCWR chart (in theTrailer Towing
section in this chapter) for your type of engine and rear axle ratio.
2. Weigh your vehicle without cargo. To obtain correct weights, take
your vehicle to a shipping company or an inspection station for
trucks.
3. Subtract your loaded weight from the maximum GCWR in the chart.
This is the maximum trailer weight your vehicle can tow. It must be
below the maximum trailer weight shown in the chart.
TRAILER TOWING
Your vehicle may tow a class I, II or III trailer provided the maximum
trailer weight is less than or equal to the maximum trailer weight listed
for your engine and rear axle ratio on the following charts.
Your vehicle's load capacity is designated by weight, not by volume, so
you cannot necessarily use all available space when loading a vehicle.
Towing a trailer places an additional load on your vehicle's engine,
transmission, axle, brakes, tires and suspension. Inspect these
components carefully after any towing operation.
4x2 w/manual transmission
Engine Rear axle
ratioMaximum
GCWR - kg
(lbs.)Maximum
trailer
weight - kg
(lbs.)Maximum
frontal area
of trailer -
m
2(ft2)
Regular Cab
2.3L All 2,177 (4,800) 744 (1,640) Equal to
frontal area
of vehicle
3.0L Dual
SportAll 2,722 (6,000) 1,161 (2,560) 4.64 (50)
Cab Plus/Cab Plus 4
3.0L Dual
SportAll 2,722 (6,000) 1,070 (2,360) 4.64 (50)
4.0L Dual
SportAll 3,175 (7,000) 1,488 (3,380) 4.64 (50)
Driving
131

4x2 w/manual transmission
For high altitude operation, reduce GCW by 2% per 300 meters (1, 000
ft.) elevation.
For definition of terms used in this table seeVehicle Loadingearlier
in this chapter.
To determine maximum trailer weight designed for your particular
vehicle, seeCalculating the loadearlier 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).
4x4 w/manual 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 All 2,722 (6,000) 1,070 (2,360) 4.64 (50)
Cab Plus/Cab Plus 4
3.0L All 2,722 (6,000) 980 (2,160) 4.64 (50)
4.0L All 3,175 (7,000) 1,388 (3,060) 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 loadearlier 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).
Driving
132

4x2 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
2.3L All 2,495 (5,500) 1,025 (2,260) Equal to
frontal area
of vehicle
3.0L Dual
SportAll 3,402 (7,500) 1,823 (4,020) 4.64 (50)
Cab Plus/Cab Plus 4
3.0L Dual
SportAll 3,402 (7,500) 1,733 (3,820) 4.64 (50)
4.0L Dual
SportAll 4,309 (9,500) 2,604 (5,740) 4.64 (50)
For high altitude operation, reduce GCW by 2% per 300 meters (1, 000
ft.) elevation.
For definition of terms used in this table seeVehicle Loadingearlier
in this chapter.
To determine maximum trailer weight designed for your particular
vehicle, seeCalculating the loadearlier 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).
Driving
133

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 All 3,402 (7,500) 1,742 (3,840) 4.64 (50)
Cab Plus/Cab Plus 4
3.0L All 3,402 (7,500) 1,651 (3,640) 4.64 (50)
4.0L All 4,309 (9,500) 2,504 (5,520) 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 loadearlier 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 certifcation 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
134

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.
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.
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).
Driving
137

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.
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
FUEL
RESET
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
140

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse Panel
Description
30 Ð Not used
31 Ð Not used
32 Ð Not used
33 15A Headlamps, Daytime Running Lamps
(DRL) module, Instrument cluster
34 Ð Not used
35 15A Horn relay (if not equipped with a Central
Security Module)
36 Ð Not used
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 high
current 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.
Roadside Emergencies
145

2.3L engine (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* Central security module, Power door locks,
Remote entry
9 Ð Not used
10 Ð Not used
11 50A** Starter relay, Ignition switch
12 20A* Power windows
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
146