Isuzu MU-X (2021 – 2023) Fuse Box Diagrams & Location
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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