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In this article, you will find information about the fuses of the Subaru WRX / WRX STI (VA; models 2018, 2019, 2020, and 2021), including diagrams of the fuse boxes, a list of fuses, their designation, and the location of the fuse blocks within the vehicle.
Checking and Replacing Fuses in Subaru WRX
The main fuses are designed to melt during an overload to prevent damage to the wiring harness and electrical equipment. Check the main fuses if any electrical component fails to operate (except the starter motor) and other fuses are good.
Caution!
Never replace a fuse with one having a higher rating or with material other than a fuse because serious damage or a fire could result.
Location of Fuse Boxes
Instrument Panel Fuse Block:
It is located under the instrument panel behind the fuse box cover on the driver’s seat side. To remove the cover, pull it out.
Engine Compartment Fuse Block:
Fuse Box Diagrams
2015-2017
Instrument Panel Fuse Block
| № | A | Circuit |
|---|---|---|
| 1 | 20 A | R.FOG TRAIL |
| 2 | 7.5A | METER IG |
| 3 | 15A | DOOR LOCK |
| 4 | 10A | IG2 |
| 5 | Empty | |
| 6 | 7.5A | MIR |
| 7 | 15A | UNIT+B |
| 8 | 7.5A | STOP |
| 9 | 7.5A | WIPER DEICE |
| 10 | 7.5A | D-OP+B |
| 11 | 7.5A | TURN IG |
| 12 | 15A | UNIT IG1 |
| 13 | 20 A | 12V PLUG |
| 14 | 10A | TAIL CLEARANCE |
| 15 | 10A | BKUP+B |
| 16 | 7.5A | ILM |
| 17 | 15A | SEAT HTR |
| 18 | 10A | LAMP IG |
| 19 | Empty | |
| 20 | 10A | CIGAR |
| 21 | 10A | START |
| 22 | 7.5A | A/C IG |
| 23 | Empty | |
| 24 | 10A | AUDIO NAVI |
| 25 | 15A | SRS AIR BAG |
| 26 | 7.5A | IG1 |
| 27 | 15A | BLOWER |
| 28 | 15A | BLOWER |
| 29 | 15A | F.FOG |
| 30 | Empty | |
| 31 | 7.5A | ACC |
| 32 | 7.5A | STR LOCK |
| 33 | 7.5A | UNIT IG2 |
Engine Compartment Fuse Block (STI)
| № | A | Circuit |
|---|---|---|
| 1 | 30A | ABS SOL |
| 2 | 25A | MAIN FAN |
| 3 | 25A | SUB FAN |
| 4 | Empty | |
| 5 | 25A | AUDIO AMP |
| 6 | 30A | H/L LO |
| 7 | 15A | H/L HI |
| 8 | 20A | BACK UP |
| 9 | 15A | HORN |
| 10 | 25A | R.DEF |
| 11 | 15A | FUEL PI, P |
| 12 | 10A | (Transmission control unit) |
| 13 | 7.5A | EGI+B |
| 14 | 15A | HAZARD |
| 15 | 15A | LIGHTING |
| 16 | 7.5A | ALT-S |
| 17 | Empty | |
| 18 | 20A | INJ |
| 19 | 15A | H/L LO RH |
| 20 | 15A | H/L LO LH |
| 21 | 10A | AIR CUT |
| 22 | 7.5A | (Telematics) |
Engine Compartment Fuse Block (Except STI)
| № | A | Circuit |
|---|---|---|
| 1 | 30A | ABS SOL |
| 2 | 25A | MAIN FAN |
| 3 | 25A | SUB FAN |
| 4 | Empty | |
| 5 | 25A | AUDIO AMP |
| 6 | 30A | H/L LO |
| 7 | 15A | H/L HI |
| 8 | 20A | BACK UP |
| 9 | 15A | HORN |
| 10 | 25A | R.DEF |
| 11 | 15A | FUEL PI, P |
| 12 | 10A | (Transmission control unit) |
| 13 | 7.5A | EGI+B |
| 14 | 15A | HAZARD |
| 15 | 15A | LIGHTING |
| 16 | 7.5A | ALT-S |
| 17 | Empty | |
| 18 | 20A | INJ |
| 19 | 15A | H/L LO RH |
| 20 | 15A | H/L LO LH |