2004 MAZDA MODEL B2300 TRUCK fuse box

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
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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

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** 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)
relay fuse
Roadside Emergencies
146

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 Ð Not used
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 20A* 4x4 module
28 Ð Not used
29 Ð Not used
30 Ð Not used
31 15A* Foglamps
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
147

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 A/C clutch solenoid
46B Ð Washer pump relay
47 Ð PCM relay
48A Ð Fuel pump relay
48B Ð Fog lamp relay
51 Ð Not used
52 Ð Not used
53 Ð Not used
54 Ð Not used
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.
Roadside Emergencies
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