2003 MAZDA MODEL B4000 battery location

Fuse/RelayLocation Fuse Amp
Rating Passenger Compartment Fuse
Panel Description
26 10A Battery saver relay, Auxiliary relay box, Restraint Central Module
(RCM), Generic Electronic
Module (GEM), Instrument
cluster
27 — Not used
28 7.5A Generic Electronic Module (GEM), Radio
29 20A Radio
30 — Not used
31 — Not used
32 — Not used
33 15A Headlamps, Daytime Running Lamps (DRL) module, Instrument
cluster
34 — Not used
35 15A Horn relay (if not equipped with a Central Security Module)
36 — 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.
Roadside Emergencies
144

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
1 50A** I/P fuse panel
2 — Not used
3 — Not used
4 — Not used
5 — Not used
6 50A** Anti-lock Brake System (ABS)
pump motor
7 30A* Powertrain Control Module (PCM)
1234521 22 23 24
25 26 27 28
29 30 31 32
33 34 35 36
37 38 39 40
41 42 43 44
678910 55
49
48 54
5352
51 56
56 B
56 A
50 50 B
50 A
47
45 45 B
45 A
4646 B
46 A
11 12 13 14 15
16 17 18 19 20
Roadside Emergencies
145

•Check cooling system fluid level and coolant strength.
• Check battery water level (non-maintenance free).
• Check battery connections and clean if necessary.
SERVICE RECOMMENDATIONS
To help you service your vehicle:
• We highlight do-it-yourself items in the engine compartment for easy
location.
• We provide a Scheduled Maintenance section which makes tracking
routine service easy.
If your vehicle requires professional service, your dealership can provide
necessary parts and service. Check your “Warranty Information” to find
out which parts and services are covered.
Use only recommended fuels, lubricants, fluids and service parts
conforming to specifications. Genuine Mazda parts are designed and built
to provide the best performance in your vehicle.
PRECAUTIONS WHEN SERVICING YOUR VEHICLE
• Do not work on a hot engine.
• Make sure that nothing gets caught in moving parts.
• Do not work on a vehicle with the engine running in an enclosed
space, unless you are sure you have enough ventilation.
• Keep all open flames and other lit material away from the battery and
all fuel related parts.
Working with the engine off
• Automatic transmission:
1. Set the parking brake and shift to P (Park).
2. Turn off the engine and remove the key.
3. Block the wheels.
• Manual transmission:
1. Set the parking brake, depress the clutch and place the gearshift in 1 (First).
2. Turn off the engine and remove the key.
3. Block the wheels.
Maintenance and Specifications
190