Isuzu MU-X (2021 – 2023) Fuse Box Location & Diagrams
The Isuzu MU-X (2021–2023) fuse box contains essential fuses and relays that protect the vehicle’s electrical systems. This blog covers the fuse box locations and diagrams, helping you identify fuse positions, ratings, and functions when checking or replacing a blown fuse safely.
Fuse Box Location
Passenger Compartment Fuse Box
The passenger compartment fuse box in the Isuzu MU-X is located in the driver’s footwell area.
Engine Compartment Fuse Box
The main engine compartment fuse box is located on the right-hand side of the engine bay (driver’s side on right-hand drive models), positioned directly behind the vehicle’s battery under a black plastic cover.
Fuse Box Diagrams
Passenger Compartment Fuse Box
| Type | No. | Description |
| Fuse MINI 10A | 1 | (R SIDE DOOR LOCK) Rear right door |
| Fuse MINI 10A | 2 | (L SIDE DOOR LOCK) Rear left door |
| Fuse MINI 10A | 3 | (SRS(IG1)) Airbag |
| Fuse MINI 10A | 4 | (ELEC(IG1)) Protects several circuits |
| Fuse MINI 5A | 5 | (ENGINE(IG1)) Engine control system |
| Fuse MINI 10A | 6 | (4WD(IG1)) All wheel drive system |
| Fuse MINI 5A | 7 | WAM(IG1) |
| Fuse MINI 5A | 8 | CGW(IG1) |
| Fuse MINI 10A | 9 | (DR DOOR UNLOCK) Power door lock system |
| Fuse MINI 25A | 10 | BCM BATT1 (+B) |
| Fuse MINI 10A | 11 | (ABS(IG1)) Anti-lock braking system |
| Fuse MINI 7.5A | 12 | (BACK UP(IG1)) Backup lights |
| Fuse MINI 5A | 14 | (METER(IG1)) Instrument cluster |
| Fuse MINI 5A | 15 | CGW(+B) |
| Fuse MINI 5A | 16 | SPARE FUSE |
| Fuse MINI 5A | 17 | WAM(+B) |
| Fuse MINI 10A | 18 | AS DOOR UNLOCK |
| Fuse MINI 20A | 19 | BCM BATT3 (+B) |
| Fuse MINI 25A | 20 | BCM BATT2 (+B) |
| Fuse MINI 5A | 21 | (H/LAMP LEVELING(IG2)) Headlights |
| Fuse MINI 20A | 22 | (DOOR LOCK (+B)) Power door lock system |
| Fuse MINI 5A | 23 | SPAHE FUSE |
| Fuse MINI 5A | 24 | (EPS(IG1)) Electric power steering |
| Fuse MINI 10A | 25 | (STOP(+B)) Stop lights |
| Fuse MINI 15A | 27 | (AUDIO(+B)) Audio system |
| Fuse MINI 5A | 28 | STEREO CAMERA (+B) |
| Fuse MINI 10A | 29 | (TRAILER (IG2)) Trailer |
| Fuse MINI 10A | 30 | (ELEC(+B)) Protects several circuits |
| Fuse MINI 5A | 31 | (ELEC(ACC)) Protects several circuits |
| Fuse MINI 10A | 32 | (USB) USB charger |
| Fuse MINI 5A | 33 | (ROOM(+B)) Interior lights |
| Fuse MINI 10A | 34 | (METER (+B)) Instrument cluster |
| Fuse MINI 7.5A | 35 | (STRG LOCK (+B)) Steering lock |
| Fuse MINI 5A | 36 | (STEREO) Audio system |
| Fuse MINI 5A | 37 | KEY INT LOCK (ACC) |
| Fuse MINI 5A | 38 | (AUDIO(ACC)) Audio system |
| Fuse MINI 15A | 39 | ACC SOCKE (+B) |
| Fuse MINI 10A | 40 | RR DOOR UNLOCK |
| Fuse MINI 10A | 41 | (ELEC(IG2)) Protects several circuits |
| Fuse MINI 10A | 42 | SCR NOX SENSOR |
| Fuse MINI 5A | 43 | (AUDIO(IG)) Audio system |
| Fuse FMX/JCase 30A | 44 | (POWER WINDOW) Power windows |
| Fuse FMX/JCase 20A | 45 | (RR DEFOGGER) Rear window defogger |
| Fuse FMX/JCase 30A | 49 | (POWER SEAT) Power seats |
Engine Compartment Fuse Box
| Type | No. | Description |
| Fuse FMM/MCase 30A | 1 | BLOWE |
| Fuse MINI 15A | 2 | (4WD) All wheel drive system |
| Fuse MINI 10A | 3 | DFF LOCK |
| Fuse MINI 5A | 4 | FRT SIDE RADAR |
| Fuse MINI 5A | 5 | (RR FOG) Rear fog lights |
| Fuse MINI 15A | 6 | (FRT FOG) Front fog lights |
| Fuse MINI 20A | 7 | (TRAILER) Trailer |
| Fuse MINI 10A | 8 | (RR WIPER) Rear wiper |
| Fuse FMM/MCase 20A | 9 | (RR COOLER) Rear air conditioning system |
| Fuse FMM/MCase 60A | 10 | (GLOW) Glow plug heater |
| Fuse FMM/MCase 20A | 11 | SCR1 |
| Fuse MINI 10A | 14 | NOX SENSOR |
| Fuse MINI 10A | 15 | (A/C) Air conditioning |
| Fuse MINI 7.5A | 16 | (SPARE) Spare fuse |
| Fuse MINI 15A | 17 | (SPARE) Spare fuse |
| Fuse MINI 25A | 18 | (SPARE) Spare fuse |
| Fuse MINI 5A | 19 | (SPARE) Spare fuse |
| Fuse MINI 10A | 20 | (SPARE) Spare fuse |
| Fuse MINI 20A | 21 | (SPARE) Spare fuse |
| Fuse puller | 22 | Extraction tool for fuse replacement. |
| Fuse MINI 5A | 23 | (DRL) Daytime running lights |
| Fuse MINI 10A | 24 | (IG) Protects several circuits |
| Fuse MINI 10A | 25 | (WASHER) Windshield washer |
| Fuse MINI 20A | 25 | FRT WIPER WASHER |
| Fuse FMM/MCase 30A | 26 | DCDC2/ABS2, ESC2 |
| Fuse FMM/MCase 50A | 27 | (STARTER) Starter system |
| Fuse FMM/MCase 50A | 28 | ABS1, ESC1 |
| Fuse MINI 20A | 29 | (FRT WIPER) Front wipers |
| Fuse MINI 15A | 30 | DC DC HEV/TCM, DRM |
| Fuse MINI 20A | 31 | DC DC 1/+B |
| Fuse MINI 5A | 32 | (IBS) Intelligent Battery Sensor |
| Fuse MINI 5A | 33 | ECM BACK LP |
| Fuse MINI 10A | 34 | (HORN) Horn |
| Fuse FMM/MCase 40A | 35 | (ECM) Engine control unit |
| Fuse FMM/MCase 60A | 36 | OPTION BOX |
| Fuse MINI 15A | 37 | TCM-DRM |
| Fuse MINI 5A | 38 | ISS |
| Fuse MINI 15A | 39 | (ENGINE) Engine control system |
| Fuse MINI 10A | 40 | H/LIGHT RH HI/PCV HEATER |
| Fuse MINI 10A | 41 | (H/LIGHT LH HI) Left-hand headlight high beam |
| Fuse MINI 5A | 42 | TCM/DRM |
| Fuse MINI 10A | 43 | (H/LIGHT RH LO) Right-hand headlight low beam |
| Fuse MINI 10A | 44 | (H/LIGHT LH LO) Left-hand headlight low beam |
| Fuse MINI 10A | 45 | (ABS) Anti-lock braking system |
| Fuse FMM/MCase 30A | 46 | ABS2, ESC2 |
| Fuse FLB/PAL 295 100A | 49 | (EPS) Electric power steering |
| Fuse FLB/PAL 295 100A | 50 | SECONDARY POWER SOURCE |
| Relay | R1 | RELAY HEATER |
| Relay | R2 | RELAY BLOWER CUT |
| Relay | R3 | RELAY FOG LIGHT |
| Relay | R4 | RELAY GLOW |
| Relay | R5 | RELAY RR COOLER |
| Relay | R6 | RELAY TAIL LIGHT |
| Relay | R7 | RELAY RR FOG LIGHT |
| Relay | R8 | RELAY SEN CONT PM |
| Relay | R9 | RELAY SCR |
| Relay | R10 | RELAY A/C COMP |
| Relay | R11 | RELAY FRT WIPER(CONV)/WASHER(REV) |
| Relay | R12 | RELAY STARTER CUT |
| Relay | R13 | RELAY DIMMER/DCDC |
| Relay | R14 | RELAY ISS STARTER/WASHER(CONV) |
| Relay | R15 | RELAY DRL1 |
| Relay | R16 | RELAY DRL2 |
| Relay | R17 | RELAY IG |
| Relay | R18 | RELAY H/LIGHT /RR WIPER |
| Relay | R19 | RELAY STARTER |
| Relay | R20 | RELAY HORN |
| Relay | R21 | RELAY ECM MAIN |
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