2004 MAZDA MODEL B4000 4WD TRUCK relay

Seating and Safety Restraints 63
Seating 63
Safety restraints 65
Air bags 77
Child restraints 89
Driving 105
Starting 105
Brakes 110
Transmission operation 114
Vehicle loading 124
Trailer towing 128
Recreational towing 135
Roadside Emergencies 137
Hazard flasher switch 137
Fuel pump shut-off switch 137
Fuses and relays 138
Overheating 148
Changing tires 149
Jump starting 157
Wrecker towing 162
Customer Assistance 163
Reporting safety defects (U.S. only) 173
Cleaning 174
Table of Contents
2

3. Start the vehicle.
If it is necessary to use the above procedure to move the gearshift lever,
it is possible that a fuse has blown or the vehicle's brakelamps are not
operating properly. Refer toFuses and relaysin theRoadside
emergencieschapter.
WARNING: Do not drive your vehicle until you verify that the
brakelamps are working.
WARNING: Always set the parking brake fully and make sure
the gearshift is latched in P (Park). Turn the ignition to the
LOCK position and remove the key whenever you leave your
vehicle.
WARNING: If the parking brake is fully released, but the brake
warning lamp remains illuminated, the brakes may not be
working properly. See your authorized Mazda dealership.
Driving with a 5±speed automatic transmission (if equipped)
Your transmission is equipped with an adaptive learning strategy found in
the vehicle computer. This feature is designed to increase durability, and
provide consistent shift feel over the life of the vehicle. A new vehicle or
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. Additionally, whenever the battery is
disconnected or a new battery is installed, the strategy must relearn.
WARNING: Hold the brake pedal down while you move the
gearshift lever from P (Park) to another position. If you do not
hold the brake pedal down, your vehicle may move unexpectedly
and injure someone.
Driving
115

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

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.
15
Roadside Emergencies
138

The fuses are coded as follows:
Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
1 5A Instrument panel dimmer switch
2 10A Trailer tow park lamps
3 10A Right low beam headlamp
4 10A Left low beam headlamp
5 30A Windshield wipers/washer
6 10A Radio (RUN/ACCY)
7 5A Headlamp illumination indicator
8 10A Restraints Control Module (RCM),
PADI (Passenger Air bag
Deactivation Indicator)
9 5A Cluster air bag indicator
10 10A Cluster (RUN/START), 4x4
module (RUN/START)

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
11 10A Passenger compartment fuse
panel (Logic power)
12 Ð Not used
13 15A Horn, Interior lamps
14 15A High beam headlamp, High beam
indicator (cluster)
15 Ð One-touch down relay
16 30A cartridge
fusePower windows
17 15A Turn signals/Hazards
18 Ð Not used
19 20A Center High-Mounted Stop Lamp
(CHMSL)/Stop lamps
20 10A Anti-lock Brake System (ABS)
module, Brake-shift interlock,
Speed control module, Back-up
lamps, Overdrive cancel switch,
Electronic flasher (turn/hazard)
21 5A Starter relay
22 5A Spare
23 30A Headlamps (low and high beam)
24 20A Radio
25 Ð Accessory relay
26 2A Brake pressure switch
27 10A Climate control blower relay/blend
doors, 4x4 module
28 15A 4x4 module B+
29 20A Cigar lighter, Diagnostic connector
(OBD II)
30 5A Power mirrors
31 20A Front park lamps, Rear park
lamps, License plate lamps
Roadside Emergencies
141

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