Acura MDX Sport Hybrid Fuse Box: What Each Fuse Does
From the 2020 Acura MDX Sport Hybrid owner's manual. 7 fuse boxes listed.
Engine Compartment Fuse Box Type A
Location: Near the brake fluid reservoir
| Fuse | Amps | Circuit |
|---|---|---|
| 1 | – | − |
| 2 | – | − |
| 3 | 15 A | ACG FR |
| 4 | 15 A | Washer |
| 5 | 7.5 A | IG1 OP |
| 6 | 7.5 A | ECU FR |
| 7 | 10 A | VBSOL |
| 8 | 15 A | FI Sub |
| 9 | 15 A | DBW |
| 10 | 15 A | FI Main |
| 11 | 15 A | IG Coil |
| 12 | 10 A | DRL R |
| 13 | 10 A | DRL L |
| 14 | 20 A | Injector |
| 15 | 20 A | Radio |
| 16 | 10 A | Back Up |
| 17 | 7.5 A | MG Clutch |
| 18 | 7.5 A | FR Fog* |
| 19 | – | − |
| 20 | 7.5 A | H/L HI R |
| 21 | – | − |
| 22 | 10 A | Small LT |
| 23 | – | − |
| 24 | 7.5 A | H/L HI L |
| 25 | 15 A | SBW |
| 26 | 10 A | H/L LO R |
| 27 | 10 A | H/L LO L |
| 28 | 7.5 A | Oil LVL |
| 29 | 30 A | Main Fan |
| 30 | 30 A | Sub Fan |
| 31 | 30 A | Wiper Main |
Source: owner's manual, PDF page 650.
Engine Compartment Fuse Box Type B
Location: Near the battery
| Fuse | Amps | Circuit |
|---|---|---|
| 1 | 200 A | Main Fuse |
| 2 | 50 A | AS F/B-1 |
| 2 | 50 A | DR F/B-2 |
| 2 | 50 A | DR F/B-1 |
| 2 | 40 A | RR DEF |
| 2 | 60 A | RR F/B-2 |
| 2 | 40 A | FR Blower |
| 2 | 30 A | H/L Washer* |
| 2 | 30 A | RR BLOWER & BMS |
| 3 | 60 A | SUB F/B-1 |
| 3 | 40 A | VSA MTR |
| 3 | 60 A | AS F/B-2 |
| 3 | 60 A | R/B Main |
| 3 | 70 A | EPS |
| 3 | 60 A | SUB F/B-2 |
| 3 | 20 A | VSA FSR |
| 3 | 40 A | ESB |
| 4 | 30 A | Stop & Horn & Hazard |
| 5 | 30 A | EOP RLY |
| 6 | 40 A | RR F/B-1 |
| 7 | 40 A | FI Main |
| 8 | 20 A | Stop & Horn |
| 9 | 10 A | Hazard |
| 10 | 7.5 A | BMS |
| 11 | – | − |
Source: owner's manual, PDF page 651.
Driver’s Side Interior Fuse Box Type A
Location: Under the dashboard
| Fuse | Amps | Circuit |
|---|---|---|
| 1 | 10 A | AS Door Lock |
| 2 | 7.5 A | RR DR Door Lock |
| 3 | 7.5 A | DR Door Lock |
| 4 | 10 A | FR AS Door Unlock |
| 5 | 7.5 A | RR DR Door Unlock |
| 6 | 7.5 A | DR Door Unlock |
| 7 | 20 A | D/L Main |
| 8 | – | − |
| 9 | 20 A | ETS TELE |
| 10 | 15 A | IG1 RR |
| 11 | 7.5 A | Meter |
| 12 | 20 A | IG1 FR |
| 13 | 7.5 A | ACC |
| 14 | – | − |
| 15 | 20 A | DR P/Seat (SLI) |
| 16 | 20 A | S/R |
| 17 | 20 A | RR DR P/W |
| 18 | 10 A | Smart |
| 19 | 20 A | FR DR P/W |
| 20 | – | − |
| 21 | 20 A | Fuel Pump |
| 22 | 15 A | IG1 AS |
| 23 | 7.5 A | ABS/VSA |
| 24 | 7.5 A | ACG AS |
| 25 | 7.5 A | STRLD |
| 26 | 7.5 A | IG2 HAC |
| 27 | 7.5 A | DRL |
| 28 | 7.5 A | ACC Key Lock |
| 29 | 7.5 A | DR P/Seat (LUM) |
| 30 | 7.5 A | INT Lights |
| 31 | 20 A | ETS TILT |
| 32 | 20 A | DR P/Seat (REC) |
| 33 | – | − |
| 34 | – | − |
Source: owner's manual, PDF page 653.
Driver’s Side Interior Fuse Box Type B
Location: Under the type A driver’s side interior fuse box
| Fuse | Amps | Circuit |
|---|---|---|
| 1 | 20 A | DCT |
| 2 | – | − |
| 3 | 20 A | DCT |
| 4 | 30 A | IG Main |
| 5 | 10 A | Hybrid System |
| 6 | 15 A | Hybrid System |
| 7 | 15 A | Hybrid System |
| 8 | 30 A | DCT |
Source: owner's manual, PDF page 654.
Driver’s Side Interior Fuse Box Type C
Location: Under the type A driver’s side interior fuse box
| Fuse | Amps | Circuit |
|---|---|---|
| 1 | 30 A | ADS |
| 2 | – | − |
| 3 | – | − |
| 4 | 30 A | IG Main |
| 5 | 10 A | Smart |
| 6 | 10 A | A/C Water Pump |
| 7 | – | − |
| 8 | 30 A | Starter Motor |
Source: owner's manual, PDF page 655.
Passenger’s Side Interior Fuse Box
Location: On the lower side panel
| Fuse | Amps | Circuit |
|---|---|---|
| 1 | – | − |
| 2 | 20 A | RR AS P/W |
| 3 | 20 A | ACM |
| 4 | 15 A | FR DEF* |
| 5 | 20 A | AVS Heated Seat |
| 6 | 20 A | FR AS P/W |
| 7 | 20 A | AS P/Seat (SLI) |
| 8 | 20 A | AS P/Seat (REC) |
| 9 | 7.5 A | AS P/Seat (LUM) |
| 10 | 5 A | Spare |
| 11 | 10 A | Heated Steering* |
| 12 | – | − |
| 13 | – | − |
| 14 | 20 A | RR ACC Socket |
| 15 | 20 A | FR ACC Socket |
| 16 | – | − |
| 17 | – | − |
| 18 | 30 A | AMP |
| 19 | 10 A | SRS |
| 20 | 7.5 A | AS ECU |
| 21 | 7.5 A | Option |
| 22 | – | − |
| 23 | – | − |
| 24 | 7.5 A | OPDS |
| 25 | 5 A | ILLUMI (INT) |
| 26 | – | − |
| 27 | 20 A | CTR ACC Socket |
| 28 | 30 A | AC INVTR* |
Source: owner's manual, PDF page 656.
Rear Fuse Box
Location: Left side of cargo area
| Fuse | Amps | Circuit |
|---|---|---|
| 1 | 20 A | PTG Closer |
| 2 | – | − |
| 3 | 15 A | USB CHARGE |
| 4 | 7.5 A | Fuel Lid |
| 5 | 20 A | Seat Slide |
| 6 | – | − |
| 7 | 20 A | RR Heat Seat* |
| 8 | – | − |
| 9 | – | − |
| 10 | – | − |
| 11 | – | − |
| 12 | 10 A | Rear Wiper |
| 13 | 7.5 A | Rear ECU |
| 14 | 20 A | SH-AWD |
| 15 | 30 A | EPB-R |
| 16 | 30 A | EPB-L |
| 17 | – | − |
| 18 | 40 A | PTG MTR |
Source: owner's manual, PDF page 657.
Listings are copied as text from the manual's fuse tables (AI-assisted; every circuit name was matched against the cited pages 2026-10-18). Fuse layouts can differ by trim and year; check the label on the fuse box cover before replacing a fuse, and always use the same amp rating.
Confirm with your own manual, dipstick or door-jamb label.
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