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Subaru WRX (2018) - fuse box diagram

avatar Jonathan Yarden Oct 06, 2021 · 5 min. read

In this article you will find a description of fuses and relays Subaru, with photos of block diagrams and their locations. Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.

Year of production: 2018

Instrument panel

Subaru WRX - fuse box diagram - instrument panel

Fuse A Circuit
1 20 R.FOG TRAIL
2 7.5 METER IG
3 15 DOOR LOCK
4 10 IG2
5
6 7.5 MIR
7 15 UNIT+B
8 7.5 STOP
9 7.5 WIPER DEICE
10 7.5 D-OP+B
11 7.5 TURN IG
12 15 UNIT IG1
13 20 12V PLUG
14 10 TAIL CLEARANCE
15 10 BKUP+B
16 7.5 ILM
17 15 SEAT HTR
18 10 LAMP IG
19
20 10 CIGAR
21 10 START
22 7.5 A/C IG
23
24 10 AUDIO NAVI
25 15 SRS AIR BAG
26 7.5 IG1
27 15 BLOWER
28 15 BLOWER
29 15 F.FOG
30
31 7.5 ACC
32 7.5 STR LOCK
33 7.5 UNIT IG2

Engine compartment (STI)

Subaru WRX - fuse box diagram - engine compartment ( STI)

Fuse A Circuit
A Main fuse
1 30 ABS SOL
2 25 MAIN FAN
3 25 SUB FAN
4
5 25 AUDIO AMP
6 30 H/L LO
7 15 H/L HI
8 20 BACK UP
9 15 HORN
10 25 R.DEF
11 15 FUEL PI, P
12 10 (Transmission control unit)
13 7.5 EGI+B
14 15 HAZARD
15 15 LIGHTING
16 7.5 ALT-S
17
18 20 INJ
19 15 H/L LO RH
20 15 H/L LO LH
21 10 AIR CUT
22 7.5 (Telematics)

Engine compartment (expect STI)

Subaru WRX - fuse box diagram - engine compartment (expect STI)

Fuse A Circuit
A Main fuse
1 30 ABS SOL
2 25 MAIN FAN
3 25 SUB FAN
4
5 25 AUDIO AMP
6 30 H/L LO
7 15 H/L HI
8 20 BACK UP
9 15 HORN
10 25 R.DEF
11 15 FUEL PI, P
12 10 (Transmission control unit)
13 7.5 EGI+B
14 15 HAZARD
15 15 LIGHTING
16 7.5 ALT-S
17
18 20 INJ
19 15 H/L LO RH
20 15 H/L LO LH

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

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