Mazda BT-50 (2021 – 2024) Fuse Box Location & Diagrams
The Mazda BT-50 (2021–2024) features multiple fuse boxes that protect important electrical circuits and vehicle systems. Finding the correct fuse box and identifying each fuse makes troubleshooting electrical problems easier. This article covers the fuse box locations, diagrams, fuse ratings, and protected components for the Mazda BT-50.
Fuse Box Location
Passenger Compartment Fuse Box
Engine Compartment Fuse Box
Fuse Box Diagrams
Passenger Compartment Fuse Box
| Type | Fuse No. | Rating | Description |
|---|---|---|---|
| Fuse MINI | 1 | 10A | Rear Right Door Lock |
| Fuse MINI | 2 | 10A | Rear Left Door Lock |
| Fuse MINI | 3 | 10A | SRS (IG1) Airbag System |
| Fuse MINI | 4 | 10A | ELEC (IG1) Protects Several Circuits |
| Fuse MINI | 5 | 5A | ENGINE (IG1) Engine Control System |
| Fuse MINI | 6 | 10A | 4WD (IG1) All Wheel Drive System |
| Fuse MINI | 7 | 5A | WAM (IG1) |
| Fuse MINI | 8 | 5A | CGW (IG1) |
| Fuse MINI | 9 | 10A | Driver Door Unlock Power Door Lock System |
| Fuse MINI | 10 | 25A | BCM BATT1 (+B) |
| Fuse MINI | 11 | 10A | ABS (IG1) Anti-lock Braking System |
| Fuse MINI | 12 | 7.5A | BACK UP (IG1) Backup Lights |
| Fuse MINI | 14 | 5A | METER (IG1) Instrument Cluster |
| Fuse MINI | 15 | 5A | CGW (+B) |
| Fuse MINI | 16 | 5A | Spare Fuse |
| Fuse MINI | 17 | 5A | WAM (+B) |
| Fuse MINI | 18 | 10A | Passenger Door Unlock |
| Fuse MINI | 19 | 20A | BCM BATT3 (+B) |
| Fuse MINI | 20 | 25A | BCM BATT2 (+B) |
| Fuse MINI | 21 | 5A | Headlight Leveling (IG2) |
| Fuse MINI | 22 | 20A | Door Lock (+B) Power Door Lock System |
| Fuse MINI | 23 | 5A | Spare Fuse |
| Fuse MINI | 24 | 5A | EPS (IG1) Electric Power Steering |
| Fuse MINI | 25 | 10A | STOP (+B) Stop Lights |
| Fuse MINI | 27 | 15A | AUDIO (+B) Audio System |
| Fuse MINI | 28 | 5A | Stereo Camera (+B) |
| Fuse MINI | 29 | 10A | Trailer (IG2) |
| Fuse MINI | 30 | 10A | ELEC (+B) Protects Several Circuits |
| Fuse MINI | 31 | 5A | ELEC (ACC) Protects Several Circuits |
| Fuse MINI | 32 | 10A | USB Charger |
| Fuse MINI | 33 | 5A | ROOM (+B) Interior Lights |
| Fuse MINI | 34 | 10A | METER (+B) Instrument Cluster |
| Fuse MINI | 35 | 7.5A | STRG LOCK (+B) Steering Lock |
| Fuse MINI | 36 | 5A | STEREO Audio System |
| Fuse MINI | 37 | 5A | Key Interlock Lock (ACC) |
| Fuse MINI | 38 | 5A | AUDIO (ACC) Audio System |
| Fuse MINI | 39 | 15A | ACC Socket (+B) |
| Fuse MINI | 40 | 10A | Rear Door Unlock |
| Fuse MINI | 41 | 10A | ELEC (IG2) Protects Several Circuits |
| Fuse MINI | 42 | 10A | SCR NOX Sensor |
| Fuse MINI | 43 | 5A | AUDIO (IG) Audio System |
| Fuse FMX/JCase | 44 | 30A | Power Windows |
| Fuse FMX/JCase | 45 | 20A | Rear Window Defogger |
| Fuse FMX/JCase | 49 | 30A | Power Seats |
Engine Compartment Fuse Box
| Type | Fuse No. | Rating | Description |
|---|---|---|---|
| Fuse FMM/MCase | 1 | 30A | BLOWER |
| Fuse MINI | 2 | 15A | 4WD All Wheel Drive System |
| Fuse MINI | 3 | 10A | Diff Lock |
| Fuse MINI | 4 | 5A | Front Side Radar |
| Fuse MINI | 5 | 5A | Rear Fog Lights |
| Fuse MINI | 6 | 15A | Front Fog Lights |
| Fuse MINI | 7 | 20A | Trailer |
| Fuse MINI | 8 | 10A | Rear Wiper |
| Fuse FMM/MCase | 9 | 20A | Rear Air Conditioning System |
| Fuse FMM/MCase | 10 | 60A | Glow Plug Heater |
| Fuse FMM/MCase | 11 | 20A | SCR1 |
| Fuse MINI | 14 | 10A | NOX Sensor |
| Fuse MINI | 15 | 10A | Air Conditioning |
| Fuse MINI | 16 | 7.5A | Spare Fuse |
| Fuse MINI | 17 | 15A | Spare Fuse |
| Fuse MINI | 18 | 25A | Spare Fuse |
| Fuse MINI | 19 | 5A | Spare Fuse |
| Fuse MINI | 20 | 10A | Spare Fuse |
| Fuse MINI | 21 | 20A | Spare Fuse |
| Fuse Puller | 22 | — | Fuse Extraction Tool |
| Fuse MINI | 23 | 5A | Daytime Running Lights (DRL) |
| Fuse MINI | 24 | 10A | IG (Protects Several Circuits) |
| Fuse MINI | 25 | 10A | Windshield Washer |
| Fuse MINI | 25 | 20A | Front Wiper Washer |
| Fuse FMM/MCase | 26 | 30A | DCDC2 / ABS2 / ESC2 |
| Fuse FMM/MCase | 27 | 50A | Starter System |
| Fuse FMM/MCase | 28 | 50A | ABS1 / ESC1 |
| Fuse MINI | 29 | 20A | Front Wipers |
| Fuse MINI | 30 | 15A | DC DC HEV / TCM / DRM |
| Fuse MINI | 31 | 20A | DC DC 1 / +B |
| Fuse MINI | 32 | 5A | Intelligent Battery Sensor (IBS) |
| Fuse MINI | 33 | 5A | ECM Back Up Lamp |
| Fuse MINI | 34 | 10A | Horn |
| Fuse FMM/MCase | 35 | 40A | Engine Control Unit (ECM) |
| Fuse FMM/MCase | 36 | 60A | Option Box |
| Fuse MINI | 37 | 15A | TCM-DRM |
| Fuse MINI | 38 | 5A | ISS |
| Fuse MINI | 39 | 15A | Engine Control System |
| Fuse MINI | 40 | 10A | Right Headlight High Beam / PCV Heater |
| Fuse MINI | 41 | 10A | Left Headlight High Beam |
| Fuse MINI | 42 | 5A | TCM / DRM |
| Fuse MINI | 43 | 10A | Right Headlight Low Beam |
| Fuse MINI | 44 | 10A | Left Headlight Low Beam |
| Fuse MINI | 45 | 10A | Anti-lock Braking System (ABS) |
| Fuse FMM/MCase | 46 | 30A | ABS2 / ESC2 |
| Fuse FLB/PAL 295 | 49 | 100A | Electric Power Steering (EPS) |
| Fuse FLB/PAL 295 | 50 | 100A | Secondary Power Source |
| Relay No. | Description |
|---|---|
| R1 | Relay Heater |
| R2 | Relay Blower Cut |
| R3 | Relay Fog Light |
| R4 | Relay Glow |
| R5 | Relay Rear Cooler |
| R6 | Relay Tail Light |
| R7 | Relay Rear Fog Light |
| R8 | Relay Sensor Control PM |
| R9 | Relay SCR |
| R10 | Relay A/C Compressor |
| R11 | Relay Front Wiper (Conventional) / Washer (Reverse) |
| R12 | Relay Starter Cut |
| R13 | Relay Dimmer / DCDC |
| R14 | Relay ISS Starter / Washer (Conventional) |
| R15 | Relay DRL 1 |
| R16 | Relay DRL 2 |
| R17 | Relay Ignition (IG) |
| R18 | Relay Headlight / Rear Wiper |
| R19 | Relay Starter |
| R20 | Relay Horn |
| R21 | Relay ECM Main |
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