Honda Civic Si 2009 - 2008 ELECTRICAL Fuses & Circuit Breakers - Civic (Except Hybrid)

Honda Civic Si 2009 - IDENTIFICATION

CAUTION:

When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See appropriate COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.

Honda Civic Si 2009 - UNDER-DASH FUSE/RELAY BOX

NOTE:

Under-dash fuse/relay box is located under driver's side of instrument panel. See Fig. 1.

Fig. 1: Honda Civic Si 2009 - Component Locations - Locating Under-Dash Fuse/Relay Box

Fig. 2: Honda Civic Si 2009 - Component Locations - Identifying Under-Dash Fuse/Relay Box Components

Honda Civic Si 2009 Identifying Under-Dash Fuse/Relay Box Fuses

Fuse Number	Fuse Name	Amps	Component or Circuit Protected
1	IG P/W	7.5A	MICU, Power Mirror Switch (4-door: except USA DX, DX-VP), Power Window Relay (DX, DX-VP, DX-G, DX-GA)
2	FUEL PUMP	15A	ECM/PCM, Fuel Shut-off Solenoid Valve Relay (GX), Immobilizer-Keyless Control Unit, MICU, PGM-FI Main Relay 2 (except GX)
3	ALTERNATOR	10A	Alternator, Brake Pedal Position Switch (except DX, DX-VP), CMP Sensor A (SI), ELD Unit (USA; SI; Canada: M/T: DX-GA), EVAP Canister Purge Valve (except GX), MAF/IAT Sensor, Reverse Lockout Solenoid (SI), Secondary HO2S
4	IG1 ABS/VSA	7.5A	ABS Modulator-Control Unit (DX, DX-VP, DX-G, DX-GA, GX, LX, LX-S, EX, Sport), EPS Control Unit (SI; Canada: DX-GA M/T), MICU, VSA Modulator-Control Unit (EX-L, SI), Yaw Rate-Lateral Acceleration Sensor (EX-L, SI)
5	H/SEAT	(15A) (GX, EX-L)	Driver's Seat Heater Relays (EX-L), Front Passenger's Seat Heater Relays (EX-L), Front Passenger's Seat Heater Relay Box (EX-L), Injector Control Module Relay (GX)
6	FR FOG	(20A)	Fog Light Relay (SI)
7	TPMS (USA)	(7.5A)	MICU, TPMS Control Unit (USA)
8	-	-	Not Used
9	IG1 ODS	7.5A	Front Passenger's Airbag Cut-off Indicator, MICU, ODS Unit, SRS Unit
10	METER	7.5A	Back-up light switch (M/T), Gauge Control Module (Speedo), Gauge Control Module (Tach), MICU, Shift Lock Solenoid (A/T), Power Window Master Switch (2-door: LX, EX, EX-L, SI), TPMS Control Unit (USA)
11	SRS	10A	MICU, SRS Unit
12	H/L R HI	10A	Right Headlight (High)
13	H/L L HI	10A	Left Headlight (High)
14	SMALL (INTR)	7.5A	A/T Gear Position Indicator Console Light, Audio Remote Switch (USA: EX, EX-L, SI), Audio Unit (except Navigation), Cable Reel, Cruise Control Combination Switch (except DX, DX-VP), Dash Lights Brightness Controller and Odometer Select/Reset Switch, Driver's Seat Heater Switch (EX-L), Front Passenger's Airbag Cut-off Indicator, Front Passenger's Seat Heater Switch (EX-L), Hazard Warning Switch, Heater Control Panel/HVAC Control Unit, HFL-Voice Control Switch (Navigation), MICU, Moonroof Switch (USA: EX; Canada LX, Sport; EX-L, SI), Navigation Unit, Park Pin Switch/A/T Gear Position Indicator Panel Light, Power Mirror Switch (2-door: except USA DX), VSA OFF Switch (SI)
15	SMALL (EXTR)	7.5A	Left Brake Light/Taillight, Left Front Side Marker/Parking/Turn Signal Lights, Left Inner Taillight (4-door), Left License Plate Light, Left Side Rear Side Marker Light, Right Brake Light/Taillight, Right Front Side Marker/Parking/Turn Signal Lights, Right Inner Taillight (4-door), Right License Plate Light, Right Rear Side Marker Light
16	H/L R LO	10A	Right Headlight (Low)
17	H/L R LO	10A	Left Headlight (Low)
18	H/L HI MAIN	20A	MICU
19	SMALL MAIN	15A	MICU
20	-	-	Not used
21	H/L LO MAIN	20A	MICU
22	IG1 HAC	(7.5A)	Not used
23	STS	(7.5A)	Not used
24	SUNROOF	(20A)	Moonroof Control Unit (USA: EX; Canada LX; EX-L, SI)
25	DOOR LOCK	20A	MICU
26	DR P/W	20A	Power Window Master Switch
27	+B HAC OP	(20A)	Option Connector
28	RR ACC SOCKET	(15A)	Console Accessory Socket Relay (except Navigation: USA: EX, EX-L, SI)
29	+B ACC	15A	Front Accessory Power Socket Relay
30	AS P/W	20A	Front Passenger's Power Window Switch, Moonroof Control Unit (2-Door: USA: EX; Canada LX; EX-L, SI), Power Window Master Switch
31	-	-	Not Used
32	RR R P/W	20A	Moonroof Control Unit (4-door: USA: EX; Canada LX; EX-L, SI), Power Window Master Switch (4-door), Right Rear Power Window Switch (4-door)
33	RR L P/W	20A	Left Rear Power Window Switch (4-door), Power Window Master Switch (4-door)
34	-	-	Not Used
35	ACC RADIO	7.5A	Audio Unit (except Navigation), Console Accessory Power Socket Relay (except Navigation: USA: EX, EX-L, SI), Front Accessory Power Socket Relay, HandsFreeLink Control Unit (Navigation), Ignition Key Switch (A/T), MICU, Navigation Unit, Stereo Amplifier (2-door: USA: EX, EX-L, SI except Navigation)
36	IG2 HAC	10A	A/C Compressor Clutch Relay, Blower Motor Relay, Driver's Seat Heater Switch (EX-L), Fan Control Relay, Front Passenger's Seat Heater Switch (EX-L), Heater Control Panel/HVAC Control Unit, MICU, Power Mirror Defogger Relay (EX-L; Canada: LX, Sport, SI), Power Mirror Switch (except USA DX, DX-VP), Radiator Fan Diode, Radiator Fan Relay, Rear Window Defogger Relay, Recirculation Control Motor
37	DAY LT	7.5A	MICU
38	FR WIPER	30A	MICU

Honda Civic Si 2009 - UNDER-HOOD FUSE/RELAY BOX

NOTE:

Under-hood fuse/relay box is located in left side of engine compartment, near strut tower. See Fig. 3.

Fig. 3: Honda Civic Si 2009 - Component Locations - Locating Under-Hood Fuse/Relay Box

Fig. 4: Honda Civic Si 2009 - Component Locations - Identifying Under-Hood Fuse/Relay Box Components

Honda Civic Si 2009 Identifying Under-Hood Fuse/Relay Box Fuses

Fuse Number	Fuse Name	Amps	Component or Circuit Protected
1	MAIN FUSE	100A	Alternator, ELD Unit (USA; SI; Canada M/T: DX-GA), Fuses 2, 4, 6, 7, 8, 9, 19, 20, 21, 22, 23 Multi-fuse 2 and Multi-fuse 4 in Under-hood Fuse/Relay Box, Starter, Starter Solenoid
EPS	70A	EPS Control Unit (SI; Canada: DX-GA M/T)
2	OP MAIN	60A	Fuses 5 (GX, EX-L), 6 (SI), 7 (USA), 27, 28 (except Navigation: USA: EX, EX-L, SI), 29 and 31 in Under-dash Fuse/Relay Box
IG MAIN	50A	Ignition Switch
3	ABS/VSA MOTOR	30A	ABS Modulator-Control Unit (DX, DX-VP, DX-G, DX-GA, GX, LX, LX-S, EX, Sport), VSA Modulator-Control Unit (EX-L, SI)
ABS/VSA F/S	30A 40A (EX-L, SI)	ABS Modulator-Control Unit (DX, DX-VP, DX-G, DX-GA, GX, LX, LX-S, EX, Sport), VSA Modulator-Control Unit (EX-L, SI)
4	H/L MAIN	50A	Fuses 18, 19, 20 and 21 in Under-dash Fuse/Relay Box
P/W MAIN	40A	Fuses 24 (USA: EX; Canada: LX, Sport; EX-L, SI), 25 and 26 (LX, GX, EX, EX-L, SI) in Under-dash Fuse/Relay Box, Power Window Relay (DX, DX-VP, DX-G, DX-GA)
5	-	-	Not Used
6	SUB FAN MTR	20A	A/C Condenser Fan Relay
7	MAIN FAN MTR	20A (M/T) 30A (A/T)	Radiator Fan Relay
8	RR DEF	30A (4-door) 40A (2-door)	Rear Widow Defogger Relay
9	BLOWER	40A	Blower Motor Relay
10	HAZARD	10A	Hazard Warning Switch, MICU
11	FI SUB	15A	PGM-FI Sub-relay
12	STOP&HORN	15A	Brake Pedal Position Switch, MICU
13	-	-	Not Used
14	-	-	Not Used
15	OIL LVL	7.5A	A/C Condenser Fan Diode, A/C Condenser Fan Relay
16	-	-	Not Used
17	AUDIO AMP	15A	Stereo Amplifier (SI: 2-door: USA: EX, EX-L)
18	IG COIL	15A	Ignition Coil Relay
19	FI MAIN	15A	PGM-FI Main Relay 1
20	MG CLUTCH	7.5A	A/C Compressor Clutch Relay
21	DBW	15A	ETCS Control Relay
22	INTR LT	7.5A	Ceiling Light, Front Individual Map Lights (USA GX, LX, LX-S, EX; Canada LX, Sport; EX-L, SI), MICU, Trunk Light
23	BACK UP	10A	Audio Unit (except Navigation), DLC, Gauge Control Module (Speedo), Gauge Control Module (Tach), HandsFreeLink Control Unit (Navigation) Immbilizer-Keyless Control Unit, MICU, Moonroof Switch (USA: EX; Canada LX, Sport; EX-L, SI), Navigation Unit