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Under-Dash Fuse/Relay Box

Fig 1: Under-Dash Fuse/Relay Box Component Locations
GHH433854Courtesy of HONDA, U.S.A., INC.
Under-Dash Fuse/Relay Box Legend

Fuse Number Amps Component(s) or Circuit(s) Protected Feature
C1 20 A No. C4 and No. C5 fuses in the under-dash fuse/relay box (via power door lock relay circuit (UNLOCK) (built into the under-dash fuse/relay box)),

No. C6 fuse in the under-dash fuse/relay box (via power door lock relay circuit (DR UNLOCK) (built into the under-dash fuse/relay box)),

No. C7, No. C12, and No. C13 fuses in the under-dash fuse/relay box (via power door lock relay circuit (LOCK) (built into the under-dash fuse/relay box)),

Power door lock relay circuit (DR UNLOCK) (built into the under-dash fuse/relay box),

Power door lock relay circuit (LOCK) (built into the under-dash fuse/relay box),

Power door lock relay circuit (UNLOCK) (built into the under-dash fuse/relay box),

Tailgate release actuator (via tailgate release actuator relay circuit (built into under-dash fuse/relay box)),

Tailgate release actuator relay circuit (built into under-dash fuse/relay box)

 
C2 --- Not used  
C3 *2 10 A Electric steering lock (+B SMART) *1,

Engine start/stop switch,

Keyless access control unit (+B SMART)

*1: With electric steering lock
*2: With keyless access system
C4 10 A Left rear door lock actuator  
C5 10 A Front passenger's door lock actuator,

Right rear door lock actuator

 
C6 10 A Driver's door lock actuator  
C7 10 A Driver's door lock actuator  
C8 20 A Power window master switch (+B P/W DR)  
C9 20 A Front passenger's power window motor (via front passenger's power window switch),

Front passenger's power window motor (via power window master switch and front passenger's power window switch),

Power window master switch (+B P/W AS)

 
C10 20 A Left rear power window motor (via left rear power window switch),

Left rear power window motor (via power window master switch and left rear power window switch)

 
C11 20 A Right rear power window motor (via power window master switch and right rear power window switch),

Right rear power window motor (via right rear power window switch)

 
C12 10 A Left rear door lock actuator  
C13 10 A Front passenger's door lock actuator,

Right rear door lock actuator

 
C14 --- Not used  
C15 10 A MICU (+B R H/L HI)  
C16 * 7.5 A Starter cut relay *: Without keyless access system
C17 --- Not used  
C18 * 20 A Moonroof motor-control unit (+B SUNROOF) *: With moonroof
C19 * 20 A Front seat heater control unit (FR H/SEAT RLY OUT) (via front seat heater relay) *: With seat heater
C20 --- Not used  
C21 * 7.5 A Multipurpose camera unit (+B OPTION) *: With multipurpose camera unit
C22 15 A Rear window washer motor relay circuit (built into the under-dash fuse/relay box),

Windshield/rear window washer motor (via rear window washer motor relay circuit or windshield washer motor relay circuit (built into the under-dash fuse/relay box)),

Windshield washer motor relay circuit (built into the under-dash fuse/relay box)

 
C23 10 A Rear window wiper motor (via rear wiper motor relay)  
C24 7.5 A A/C compressor clutch relay,

Blower motor relay,

Climate control unit (IG2 A/C) *3,

Front seat heater relay *4,

Heated windshield wiper area relay *1,

HVAC control unit (IG2 A/C) *2,

Left power mirror actuator (via power mirror switch),

Radiator fan relay,

Rear window defogger relay,

Right power mirror actuator (via power mirror switch)

*1: With heated windshield wiper area
*2: Without climate control
*3: With climate control
*4: With seat heater
C25 7.5 A MICU (IG2 DRL)  
C26 7.5 A Starter cut relay 1,

Starter cut relay 2

 
C27 7.5 A Automatic dimming inside mirror *,

Brake light relay,

Electric parking brake control unit (IG1 VSA/ABS),

EPS control unit (IG1 VSA/ABS),

Rearview mirror,

Steering angle sensor,

VSA modulator-control unit (IG1 VSA/ABS)

*: With automatic dimming inside mirror
C28 10 A SRS unit (VB)  
C29 10 A MICU (+B L H/L HI)  
C30 10 A EVAP canister purge valve,

MAF sensor/IAT sensor,

PCM (BKSWNC) (via brake pedal position switch),

Reverse lockout solenoid *,

Secondary HO2S (Sensor 2)

*: M/T
C31 * 10 A Windshield wiper motor relay *: With keyless access system
C32 15 A Electric steering lock (IG1 FUEL PUMP) *2*3,

Fuel pump (via PGM-FI main relay 2),

Immobilizer-keyless control unit (IG1 FUEL PUMP) *1,

Keyless access control unit (IG1 FUEL PUMP) *2,

PCM (IG1 F/PUMP)

*1: Without keyless access system
*2: With keyless access system
*3: With electric steering lock
C33 7.5 A Front passenger's airbag CUTOFF indicator *1,

Front passenger's airbag ON/OFF indicator *2

*1: USA and Canada models
*2: Mexico models
C34 7.5 A ANC/active sound control unit (IG1 METER) *6,

A/T gear position indicator *1,

Audio-navigation unit (BACK LT) (via reverse relay circuit (built into the under-dash fuse/relay box)) *1*3,

Audio-navigation unit (IG1 WITH DIODE) (via reverse relay circuit (built into the under-dash fuse/relay box) and RR CAMERA IG1 diode),

Audio unit (BACK LT) (via reverse relay circuit (built into the under-dash fuse/relay box)) *1 *2,

Audio unit (IG1 OPTION) *5,

Audio unit (IG1 WITH DIODE) (via reverse relay circuit (built into the under-dash fuse/relay box) and RR CAMERA IG1 diode) *4,

Automatic dimming inside mirror (via reverse relay circuit (built into the under-dash fuse/relay box)) *7,

Gauge control module (IG1 METER),

Left back-up light (via reverse relay circuit (built into the under-dash fuse/relay box)) *1,

MICU (BACK LT) (via reverse relay circuit (built into the under-dash fuse/relay box)),

MICU (IG1 METER),

Rearview mirror (via reverse relay circuit (built into the under-dash fuse/relay box)),

Reverse relay circuit (built into the under-dash fuse/relay box),

Right back-up light (via reverse relay circuit (built into the under-dash fuse/relay box)) *1,

Shift lock solenoid *1

*1: CVT
*2: Without navigation
*3: With navigation
*4: With diode (integrated with dashboard wire harness)
*5: Without ANC/active sound control unit
*6: With ANC/active sound control unit
*7: With automatic dimming inside mirror
C35 7.5 A Left back-up light (via back-up light switch) *1,

PCM (BKLT-) (via back-up light switch) *1,

PCM (IG1 MISS SOL) *2,

Right back-up light (via back-up light switch) *1

*1: M/T*2: CVT
 
C36 20 A Front accessory power socket  
C37 7.5 A A/T gear position indicator *1,

Audio-navigation unit (IG1 WITH DIODE) (via RR CAMERA ACC diode) *3,

Audio unit (ACC) *2*4,

Audio unit (IG WITH DIODE) (via RR CAMERA ACC diode) *2*5,

Console accessory power socket relay,

Electric parking brake control unit (ACC),

MICU (ACC),

Rear accessory power socket relay

*1: CVT
*2: Without navigation
*3: With navigation
*4: Without diode
*5: With diode (integrated with dashboard wire harness)
C38 --- Not used  
C39 10 A Audio-navigation unit (IG1 OPTION) *7,

Audio unit (IG OPTION) *6*2,

AWD control unit (IG1 OPTION) *1,

Front seat heater control unit (IG1 OPTION) *4,

Millimeter wave radar *5,

Moonroof motor-control unit (IG1 OPTION) *3,

Multipurpose camera unit (IG1 OPTION) *5,

RDM switch *5

*1: AWD
*2: Without ANC/active sound control unit
*3: With moonroof
*4: With seat heater
*5: With multipurpose camera unit
*6: Without navigation
*7: With navigation
C40 10 A Rear window wiper motor *1,

Rear wiper motor relay *2

*1: Without keyless access system
*2: With keyless access system
C41 --- Not used  
C42 --- Not used