Subaru Ascent (2019 – 2021) Fuse Box Location & Diagrams
The Subaru Ascent (2019–2021) features multiple fuse boxes that protect its electrical circuits and vehicle systems. Knowing their locations and fuse assignments helps identify electrical faults, replace blown fuses, and maintain essential components such as lighting, power windows, climate control, and infotainment systems.
Fuse Box Location
Passenger Compartment Fuse Box
The fuse panel is located on the left side of the dashboard, below, behind the cover.
Engine Compartment Fuse Box
The power distribution box is located in the engine compartment.
Fuse Box Diagram
Passenger Compartment Fuse Box
| Fuse No. | Fuse Rating | Circuit |
|---|---|---|
| 1 | Empty | — |
| 2 | 20 A | CIGAR |
| 3 | 7.5 A | IG A-1 |
| 4 | 15 A | AUDIO NAVI |
| 5 | 15 A | IG B-2 |
| 6 | Empty | — |
| 7 | Empty | — |
| 8 | 15 A | A/C IG |
| 9 | 7.5 A | ACC |
| 10 | 7.5 A | IG B-1 |
| 11 | Empty | — |
| 12 | Empty | — |
| 13 | 7.5 A | IG A-3 |
| 14 | 10 A | UNIT +B |
| 15 | 7.5 A | METER IG |
| 16 | Empty | — |
| 17 | 7.5 A | MIRROR |
| 18 | 7.5 A | LAMP IG |
| 19 | 10 A | IG A-2 |
| 20 | 10 A | SRS AIR BAG |
| 21 | Empty | — |
| 22 | 15 A | STRG/H |
| 23 | 10 A | DRL |
| 24 | Empty | — |
| 25 | Empty | — |
| 26 | 10 A | BACK UP |
| 27 | 15 A | SEAT HTR F |
| 28 | 15 A | TRAIL |
| 29 | Empty | — |
| 30 | Empty | — |
| 31 | Empty | — |
| 32 | 7.5 A | ILLUMI |
| 33 | 7.5 A | KEY SW A |
| 34 | Empty | — |
| 35 | Empty | — |
| 36 | 7.5 A | KEY SW B |
| 37 | 7.5 A | STOP |
| 38 | 7.5 A | EYE SIGHT |
Engine Compartment Fuse Box
| № | Amp rating | Circuit |
|---|---|---|
| A | Main fuse | |
| 1 | 7.5A | HORN HI / HORN 2 |
| 2 | 7.5A | HORN LO / HORN 1 |
| 3 | 15A | H/L LO RH |
| 4 | 15A | H/L LO LH |
| 5 | 10A | DCM |
| 6 | 10A | H/L HI RH |
| 7 | 10A | H/L HI LH |
| 8 | 10A | TAIL |
| 9 | 30A | JB-B |
| 10 | 25A | FUEL |
| 11 | 7.5A | OBD |
| 12 | 10A | ODS |
| 13 | 7.5A | PU B/UP |
| 14 | 15A | HAZARD |
| 15 | Empty / 7.5A | 2019: Not Used 2020-2021: AUX |
| 16 | 10A | MB-B |
| 17 | 20A | SOCKET |
| 18 | 20A | D/L |
| 19 | 15A | ETC |
| 20 | 10A | E/G2 |
| 21 | 7.5A | CVT SSR |
| 22 | 20A | DI |
| 23 | Empty | |
| 24 | 20A | O2 HTR |
| 25 | Empty | |
| 26 | 20A | TCU |
| 27 | 15A | IG COIL |
| 28 | 15A | E/G1 |
| 29 | 30A | BACKUP |
| 30 | 15A | R_S/H |
| 31 | 30A | VDC SOL |
| 32 | 15A | F. FOG |
| 33 | 30A | R. DEF |
| 34 | 20A | AUDIO |
| 35 | 15A | DEICER |
| 36 | Empty | |
| 37 | 20A | BLOWER |
| 38 | 20A | BLOWER |
| 39 | Empty | |
| 40 | 15A | R. WIPER |
| 41 | 15A | F. WASH |
| 42 | 30A | F. WIPER |
| 43 | Empty | |
| 44 | Empty |
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