Honda Civic Sedan Fuse Box: What Each Fuse Does

From the 2026 Honda Civic Sedan owner's manual. 3 fuse boxes listed.

Engine compartment fuse box

Fuse	Amps	Circuit
1	–	BATTERY
2	–	F/BOX OPTION
3	40 A	RR DEFROSTER
3	40 A	HTR MTR
4	40 A	ABS/VSA MTR
4	30 A	IG MAIN
4	30 A	R/M2
5	30 A	ST MAGNETIC SW
5	30 A	WIPER
5	70 A	EPS
5	30 A	R/M1
5	40 A	ABS/VSA FSR
5	30 A	MAIN FAN
5	40 A	F/BOX MAIN2
6	30 A	SUB FAN
7	–	IG MAIN2
11	10 A	USB CHG*
13	10 A	H/STRG*
16	10 A	MG CLUTCH
17	15 A	WASHER
18	10 A	HORN
19	15 A	BACK UP
20	15 A	AUDIO*
22	15 A	DBW
23	20 A	EOP*
24	10 A	BACKUP FI-ECU
25	15 A	IGP
26	15 A	TCU*
27	15 A	LCM L
28	15 A	INJ
29	10 A	STOP
30	15 A	LCM R
31	15 A	IG COIL
32	20 A	EVTC*
33	15 A	HAZARD
36	30 A	AUDIO VST MAIN
37	30 A	BACKUP2
40	10 A	VBACT*
41	10 A	IGPS [LAF]
42	7.5 A	IG1 MON2

Source: owner's manual, PDF page 698.

Interior fuse box

Fuse	Amps	Circuit
1	20 A	P/W DR
2	20 A	P/W AS
3	20 A	P/W RR R
4	20 A	P/W RR L
5	10 A	OPTION
6	10 A	SRS
7	10 A	T/G MTR / TRUNK ACT
9	20 A	FR ACC SOCKET
10	20 A	DOOR LOCK
11	10 A	METER
12	10 A	OPTION3 (ST CUT)
13	10 A	OPTION2 (RR WIP)*
14	10 A	OPTION6 (VB SOL)
15	10 A	DR DOOR UNLOCK
16	20 A	SUNROOF*
17	10 A	SBW1*
20	10 A	RR FOG*
21	20 A	CARGO ACC SOCKET*
22	10 A	SMART
23	10 A	DR DOOR LOCK
24	7.5 A	SBW2*
25	10 A	IMG
26	10 A	SRS
27	20 A	ACG / D/V / ST CUT RLY
28	10 A	OPTION5
29	15 A	FUEL PUMP
30	10 A	L SIDE DOOR UNLOCK
31	10 A	R SIDE DOOR UNLOCK
36	20 A	OPTION3 (SUNSHADE)*
37	15 A	IGA2*
39	10 A	R SIDE DOOR LOCK
40	20 A	P/SEAT REC / RR HI*
41	20 A	P/SEAT SLIDE / FR HI*
42	10 A	BACK LT*
43	10 A	A/C
44	10 A	DRL
45	10 A	ACC
46	10 A	ACC KEY LOCK
47	10 A	L SIDE DOOR LOCK
48	20 A	H/SEAT
49	20 A	AS P/SEAT REC*
50	10 A	P/LUMBAR DR*
51	10 A	P/LUMBAR AS*
52	20 A	RR H/SEAT*
53	20 A	AS P/SEAT SLI*
54	10 A	OPTION1 / FUEL LID
55	30 A	AUDIO AMP*
56	30 A	ADS*

Source: owner's manual, PDF page 700.

Sub Fuse Box

Fuse	Amps	Circuit
A	10 A	BACKUP2 MAIN
B	7.5 A	AUDIO SUB VST*
C	10 A	ACC VST
D	10 A	VST 1
E	15 A	AUDIO VST
F	20 A	EOP*
H	10 A	VST 2

Source: owner's manual, PDF page 700.

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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