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Under-Hood Fuse/Relay Box (A)

Fig 1: Under-Hood Fuse/Relay Box (A) Components Location
GHH257474Courtesy of HONDA, U.S.A., INC.
Under-Hood Fuse/Relay Box (A) Legend

Fuse Number Amps Component (s) or Circuit (s) Protected
A1 150 A 12 volt battery
A2 A2-1 +B EPS 70 A EPS control unit
A2-2 +B ESB 40 A Electric servo brake control unit
A2-3 +B ENG EWP 20 A Electric engine coolant pump (via engine EWP relay circuit)
A2-4 +B F/B OP 1 40 A No. C1, No. C2, and No. C4 fuses in the under-dash sub fuse box
A2-5 +B ABS/VSA MTR 30 A VSA modulator-control unit
A2-6 +B RFC 40 A RFC unit (via RFC relay)
A2-7 +B IG MAIN 1 30 A Keyless access control unit (via under-dash fuse/relay box and under-dash sub relay box)
A3 A3-1 +B H/L LO MAIN 30 A Headlight relay,

No. A24 and No. A25 fuses in the under-hood fuse/relay box (via headlight relay)

A3-2 - - - 30 A Not used
A3-3 +B IG MAIN 2 30 A Under-dash sub relay box

Keyless access control unit (via under-dash sub relay box)

A3-4 +B WIPER MTR 30 A Windshield wiper motor

(via windshield wiper intermittent relay circuit and windshield wiper HIGH/LOW relay circuit)

A4 15 A PGM-FI main relay 1,

CKP sensor (via PGM-FI main relay 1),

CMP sensor A (via PGM-FI main relay 1),

CMP sensor B (via PGM-FI main relay 1),

ETCS control relay (via PGM-FI main relay 1),

No. 1 injector (via PGM-FI main relay 1),

No. 2 injector (via PGM-FI main relay 1),

No. 3 injector (via PGM-FI main relay 1),

No. 4 injector (via PGM-FI main relay 1),

PCM (FI MAIN RLY OUT) (via PGM-FI main relay 1),

PGM-FI main relay 2 (via PGM-FI main relay 1)

A5 7.5 A Electric motor control module coolant pump

(via electric motor control module coolant pump relay circuit)

A6 20 A Electric VTC relay circuit (built into the relay circuit board),

Electric VTC motor (via electric VTC relay circuit)

A7 10 A IGHLD1 relay circuit (built into the relay circuit board),

Battery condition monitor module (via IGHLD1 relay circuit),

PCU (IGA) (via IGHLD1 relay circuit),

Electric motor control module coolant pump relay circuit

(built into the relay circuit board) (via IGHLD1 relay circuit)

A8 15 A PCM (VBDBW) (via ETCS control relay)
A9 15 A Ignition coil relay,

No. 1 ignition coil (via ignition coil relay),

No. 2 ignition coil (via ignition coil relay),

No. 3 ignition coil (via ignition coil relay),

No. 4 ignition coil (via ignition coil relay)

A10 10 A ACC unit (via brake light relay) *1,

High mount brake light (via brake light relay),

Left brake light (via brake light relay),

Right brake light (via brake light relay),

VSA modulator-control unit (via brake light relay),

Keyless access control unit (via brake pedal position switch),

MICU (STOP SW) (via brake pedal position switch),

PCM (STOP SW) (via brake pedal position switch),

ACC unit (via brake pedal position switch and brake light relay) *1,

High mount brake light (via brake pedal position switch and brake light relay),

Left brake light (via brake pedal position switch and brake light relay),

Right brake light (via brake pedal position switch and brake light relay),

VSA modulator-control unit (via brake pedal position switch and brake light relay)

A11 15 A PGM-FI subrelay,

A/F sensor (sensor 1) (via PGM-FI subrelay),

Engine EWP relay circuit (built into the relay circuit board) (via PGM-FI subrelay),

EVAP canister purge valve 1 (via PGM-FI subrelay),

EVAP canister purge valve 2 (via PGM-FI subrelay),

EVAP canister vent shut valve (via PGM-FI subrelay),

No. A23 fuse in the under-hood fuse/relay box (via PGM-FI subrelay),

RFC unit (via PGM-FI subrelay)

A12 A12-1 +B F/B MAIN 2 60 A Power window relay,

No. B31, No. B32, No. B33, No. B34 (via power window relay),

No. B35 (via power window relay), No. B40, and No. B42 fuses

in the under-dash fuse/relay box

A12-2 +B RR DEF 50 A Noise reduction condenser (via rear window defogger relay)
A12-3 +B F/B MAIN 1 60 A No. B14, No. B15, No. B16, No. B17, and No. B36 fuses in the under-dash fuse/relay box
A12-4 +B ABS/VSA FSR 40 A VSA modulator-control unit
A12-5 +B H/L HI MAIN 30 A No. B28, No. B29, No. B30, and No. B39 fuses in the under-dash fuse/relay box
A12-6 - - - 40A Not used
A12-7 +B HTR MTR 40 A Blower motor (via blower motor relay)
A12-8 - - - 40A Not used
A12-9 +B SMALL 20 A Taillight relay circuit (built into the relay circuit board),

No. B25 and No. B27 fuses in the under-dash fuse/relay box (via taillight relay circuit)

A12-10 +B F/B OP 2 40 A No. C6 *2, No. C7 *3, and No. C8 *3 fuses in the under-dash sub fuse box
A13 40 A PTC heater B (via PTC heater B relay)
A14 40 A PTC heater A (via PTC heater A relay)
A15 - - - Not used
A16 10 A 12 volt battery sensor,

Horn relay,

Horn (HIGH) (via horn relay),

Horn (LOW) (via horn relay)

A17 15 A High voltage battery module fan (via battery fan relay)
A18 7.5 A 12 volt battery sensor,

Interior light cut relay,

Ceiling light (via interior light cut relay),

Driver's door courtesy light (via interior light cut relay),

Driver's vanity mirror light (via interior light cut relay),

Front individual map light (via interior light cut relay),

Front passenger's door courtesy light (via interior light cut relay),

Passenger's vanity mirror light (via interior light cut relay),

Trunk light (via interior light cut relay)

A19 7.5 A Daytime running light relay,

Left front daytime running light (via daytime running light relay),

Right front daytime running light (via daytime running light relay)

A20 *4 20 A Stereo amplifier
A21 10 A ACC unit *1,

Active noise cancellation unit,

Automatic lighting control unit/sensor,

Battery condition monitor module,

Data link connector (DLC),

FCW/LDW camera unit *5,

Gauge control module,

HOMELINK unit *6,

Keyless access control unit,

MICU (+B BACK UP),

PCM (+B BACK UP),

PCU (VBU),

Power seat control unit *3,

Door multiplex control unit,

LDW camera unit *1

A22 15 A Audio unit *7,

Audio-navigation unit *8,

Multi-information display unit

A23 7.5 A RFC relay
A24 10 A *9

15 A *10

Right headlight (LO)
A25 10 A *9

15 A *10

Left headlight (LO)
A26 - - - Not used
*1: With ACC
*2: With rear seat heater
*3: With DPMS
*4: With stereo amplifier
*5: Without ACC with LDW
*6: With HOMELINK
*7: Without navigation
*8: With navigation
*9: Without LED headlight
*10: With LED headlight