Mazda B-Series (2003) Fuse Box Diagram

avatar Jonathan Yarden
Year of production: 2003

Passenger compartment fuse panel

The fuse panel is located on the left-hand side of the instrument panel facing the driver’s side door.

Mazda B-Series - fuse box - passenger compartment

Description Ampere rating [A] Description
1 5 Power Mirror Switch
2 10 Daytime Running Lights (DRL), Back-up lamps, Transmission, Passenger air bag deactivation switch, Blower motor relay
3 7,5 Left stop/turn trailer tow connector
4 β€” Not Used
5 15 4Γ—4 Control Module
6 2 Brake pressure switch
7 7,5 Right stop/turn trailer tow connector
8 β€” Not Used
9 7,5 Brake Pedal Position Switch
10 7,5 Speed control servo/amplifier assembly, Generic Electronic Module (GEM), Shift lock actuator, Turn signals, 4Γ—4
11 7,5 Instrument cluster, 4Γ—4, Main light switch, Central Security Module (CSM), Generic Electronic Module (GEM)
12 β€” Not Used
13 20 Brake Pedal Position Switch
14 10 Anti-Lock Brake System (ABS) Control Module
15 Β β€” Not Used
16 30 Windshield wiper motor, Wiper HI/LO relay, Wiper run/park relay
17 20 Cigar Lighter, Data Link Connector (DLC)
18 β€” Not Used
19 25 Powertrain Control Module (PCM) power diode, Ignition, PATS (Passive Anti-Theft System)
20 7,5 Generic Electronic Module (GEM), Radio
21 15 Hazard flasher
22 20 Auxiliary Power Socket
23 β€” Not Used
24 7,5 Clutch Pedal Position (CPP) switch, Starter Interrupt Relay
25 β€” Not Used
26 10 Battery Saver Relay, Auxillary Relay Box, Restraint Central Module (RCM), Generic Electroic Module (GEM), Instrument Cluster
27 β€” Not Used
28 7,5 Generic Electronic Module (GEM), Radio
29 20 Radio
30 β€” Not Used
31 β€” Not Used
32 β€” Not Used
33 15 Headlamps, Daytime Running Lamps (DRL) Module, Instrument Cluster
34 β€” Not Used
35 15 Horn Relay (If Not Equipped with Central Security Module)
36 β€” Not Used

Power distribution box

The power distribution box is located in the engine compartment.

2.3L engine (if equipped)

Mazda B-Series - fuse box - power distribution box (2.3L engine)

Description Ampere rating [A] Description
1 50** I/P Fuse Panel
2 β€” Not Used
3 β€” Not Used
4 β€” Not Used
5 β€” Not Used
6 50** Anti-lock Brake System (ABS) pump motor
7 30* Powertrain Control Module (PCM)
8 20* Central Security Module, Power Door Locks, Remote Entry
9 β€” Not Used
10 β€” Not Used
11 50** Starter Relay, Ignition Switch
12 20* Power Windows
13 β€” Not Used
14 β€” Not Used
15 β€” Not Used
16 40** Blower Motor
17 20** Auxiliary Cooling Fan
18 β€” Not Used
19 β€” Not Used
20 β€” Not Used
21 10* PCM Memory
22 β€” Not Used
23 20* Fuel Pump Motor
24 30* Headlamps
25 10* A/C Clutch Relay
26 β€” Not Used
27 β€” Not Used
28 30* 4WABS Module
29 β€” Not Used
30 15* Trailer Tow
31 20* Foglamp, Daytime Running Lamps (DRL)
32 β€” Not Used
33 15* Park Lamp, Central Security Module
34 β€” Not Used
35 β€” Not Used
36 β€” Not Used
37 β€” Not Used
38 10* Left Headlamp Low Beam
39 β€” Not Used
40 β€” Not Used
41 20* Heated Oxygen Sensors
42 10* Right Headlamp Low Beam
43 β€” (Resistor)
44 β€” Not Used
45A β€” Wiper High/Low Relay
45B β€” Wiper Park/Run Relay
46A β€” Fuel Pump Relay
46B β€” Trailer Tow Relay
47 β€” Starter Relay
48 β€” Auxiliary Cooling Fan
49 β€” Not Used
50 β€” Not Used
51 β€” Not Used
52 β€” Not Used
53 β€” PCM Diode
54 β€” PCM Relay
56 β€” Blower Motor Relay
56A β€” A/C Clutch Relay
56B β€” Front Washer Pump Relay
* Mini Fuses ** Maxi Fuses

3.0L and 4.0L engines (if equipped)

Mazda B-Series - fuse box - power distribution box (3. 0L and 4.0L engine)

Description Ampere rating [A] Description
1 50** I/P Fuse Panel
2 β€” Not Used
3 β€” Not Used
4 β€” Not Used
5 β€” Not Used
6 50** Anti-lock Brake System (ABS) Pump Motor
7 30* Powertrain Control Module (PCM)
8 20* Power door locks, Remote entry
9 β€” Not Used
10 β€” Not Used
11 50** Starter Relay, Ignition Switch
12 20* Power Windows
13 20* 4Γ—4 motor
14 β€” Not Used
15 β€” Not Used
16 40** Blower Motor
17 β€” Not Used
18 β€” Not Used
19 β€” Not Used
20 β€” Not Used
21 10* Powertrain Control Module (PCM) memor
22 β€” Not Used
23 20* Fuel Pump Motor
24 30* Headlamps
25 10* A/C Clutch Relay
26 β€” Not Used
27 β€” Not Used
28 30* Anti-lock Brake System (ABS) module
29 β€” Not Used
30 15* Trailer Tow
31 20* Foglamp, Daytime Running Lamps (DRL)
32 β€” Not Used
33 15* Park Lamp
34 β€” Not Used
35 β€” Not Used
36 β€” Not Used
37 β€” Not Used
38 10* Left Headlamp Low Beam
39 β€” Not Used
40 β€” Not Used
41 20* Heated Oxygen Sensors
42 10* Right Headlamp Low Beam
43 β€” Not Used
44 β€” Not Used
45A β€” Wiper High/Low Relay
45B β€” Wiper Park/Run Relay
46A β€” Fuel Pump Relay
46B β€” Trailer Tow Relay
47A β€” A/C Clutch Solenoid Relay
47B β€” Front Washer Pump Relay
48A β€” Fog Lamps
48B β€” Fog Lamp Relay
51 β€” Not Used
52 β€” Not Used
53 β€” Powertrain Control Module (PCM) Diode
54 β€” Powertrain Control Module (PCM)
55 β€” Blower Relay
56 β€” Starter Relay
* Mini Fuses ** Maxi Fuses

WARNING:Β Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

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