Mazda BT-50 (2011 – 2020) Fuse Box Location & Diagrams
The Mazda BT-50 (2011–2020) uses several fuse boxes to protect its electrical systems and components. Knowing their locations and fuse assignments makes it easier to identify electrical faults, replace blown fuses, and maintain essential vehicle functions. This article provides clear fuse box locations and diagrams for the Mazda BT-50.
Fuse Box Location
Passenger Compartment Fuse Box
Fully open the driver’s side storage compartment.
Engine Compartment Fuse Box
Release the catches and remove the cover.
Fuse Box Diagrams
Passenger Compartment Fuse Box
| No. | Fuse Ampere Rating | Circuits Protected |
|---|---|---|
| 56 | 20A | Fuel pump |
| 57 | — | Not used |
| 58 | — | Not used |
| 59 | 5A | Passive anti-theft system (PATS) |
| 60 | 10A | Interior lamp, driver’s door switch pack, mood lights, automatic shifter |
| 61 | 15A | Spare |
| 62 | 5A | Rain sensor module |
| 63 | 5A | Tachograph |
| 64 | — | Not used |
| 65 | — | Not used |
| 66 | 20A | Driver’s door unlock, central double locking |
| 67 | 5A | Stop lamp switch |
| 68 | — | Not used |
| 69 | 5A | Instrument cluster, integrated control module (ICP), tracking and blocking module |
| 70 | 20A | Central locking |
| 71 | 5A | Air conditioning |
| 72 | 7.5A | Alarm horn |
| 73 | 5A | On-board diagnostics II |
| 74 | 20A | High beam |
| 75 | 15A | Front fog lamps |
| 76 | 10A | Reversing lamp, rear view mirror |
| 77 | 20A | Washer pump |
| 78 | 5A | Ignition switch |
| 79 | 15A | Low audio/FSO audio, multifunction display |
| 80 | 20A | Multi-function display, hi audio, sync module |
| 81 | 5A | Interior motion sensor |
| 82 | 20A | Washer pump ground |
| 83 | 20A | Central locking ground |
| 84 | 20A | Driver’s door unlock, central double locking ground |
| 85 | 7.5A | Instrument cluster, parking aid module, manual air conditioning, track and block IGN sense, rear view camera, rear view mirror |
| 86 | 10A | Restraint system, passenger airbag deactivation indicator |
| 87 | 5A | Tachograph |
| 88 | — | Not used |
| 89 | — | Not used |
Engine Compartment Fuse Box
| Fuse No. | Ampere Rating | Circuit Protected |
|---|---|---|
| 1 | 60A | CEM Power A |
| 2 | 60A | CEM Power B |
| 3 (Petrol) | 50A | Engine cooling fan |
| 3 (Diesel) | 60A | Glow plug control module |
| 4 | 40A | ABS module |
| 5 | 30A | Electric windows |
| 6 | 25A | Four wheel drive (4×4) motor ground |
| 7 | — | Not used |
| 8 | — | Not used |
| 9 | 20A | Power seat |
| 10 | 25A | Electric windows |
| 11 | 30A | Blower motor |
| 12 | 25A | Four wheel drive (4×4) motor power |
| 13 | 20A | Starter solenoid |
| 14 | 20A | Heated rear window |
| 15 (Petrol) | 10A | Flex-fuel pump |
| 15 (Diesel) | 15A | Vapouriser glow plug |
| 16 | 10A | A/C clutch |
| 17 | 25A | Electric windows |
| 18 | 25A | Windscreen wiper motor |
| 19 | 25A | Windscreen wiper motor ground |
| 20 | 20A | Cigar lighter |
| 21 | 15A | Horn |
| 22 (Petrol) | 15A | Fuel injectors or flex-fuel valve |
| 22 (Diesel) | — | Not used |
| 23 | 10A | Differential lock solenoid |
| 24 | 20A | Auxiliary power socket |
| 25 | 15A | Ignition coils, temperature sensor, mass air flow sensor, glow plug module, vacuum control |
| 26 | 7.5A | Electronic control module (ECM) |
| 27 | 10A | Transmission control module (TCM) |
| 28 | 10A | Heated exhaust gas oxygen sensor, universal heated exhaust gas oxygen sensor, relay coils, fuel cut-off switch |
| 29 | 15A | Electronic control module (ECM) |
| 30 | 15A | Battery monitoring sensor |
| 31 | 20A | Auxiliary power socket |
| 32 | 5A | A/C pressure switch |
| 33 | 10A | Transmission control module (TCM) |
| 34 | — | Not used |
| 35 | 20A | CEM |
| 36 | 5A | ABS module |
| 37 | 10A | Headlamp levelling |
| 38 | 20A | Heated seat |
| 39 | 10A | Power mirrors |
| 40 (Petrol) | — | Not used |
| 40 (Diesel) | 10A | Vapouriser pump |
| 41 | — | Not used |
| 42 | 10A | Alarm horn |
| 43 | 30A | Heated windscreen |
| 44 | 30A | Heated windscreen |
| 45 | 25A | ABS module |
| 46 | 20A | Auxiliary power socket |
| 47 | 40A | Trailer tow module |
| 48 | — | Not used |
| 49 | — | Not used |
| 50 | 5A | Ignition relay, relay coils |
| 51 | 20A | Trailer tow |
| 51 (Additional) | 30A | Electric windows |
| Relay No. | Circuits Switched |
|---|---|
| R1 (Petrol) | Not used |
| R1 (Diesel) | Key interlock |
| R2 | Wiper on/off |
| R3 | Horn |
| R4 | A/C clutch |
| R5 | Differential lock |
| R6 | Wiper Hi/Lo |
| R7 (Petrol) | Engine cooling fan low |
| R7 (Diesel) | Not used |
| R8 (Petrol) | Engine cooling fan high |
| R8 (Diesel) | Not used |
| R9 | Flex-fuel pump, vapouriser glow plug |
| R10 | Heated rear window |
| R11 | Heated windscreen |
| R12 | Not used |
| R13 | Electronic control module (ECM) power hold |
| R14 | Ignition |
| R15 | 4×4 motor 2 (Clockwise) |
| R16 | 4×4 motor 1 (Counter clockwise) |
| R17 | 4×4 motor |
| R18 | Security horn |
| R19 | Starter |
| R20 | Not used |
| R21 | Not used |
| R22 | Not used |
| R23 | Not used |
| R24 | Not used |
| R25 | Not used |
| R26 | Blower motor |
| R27 | Power seat |
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