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Under-Dash Fuse/Relay Box (B)

UNDER-DASH FUSE/RELAY BOX (B) REFERENCE TERMINALS

Fuse Number Amps Component(s) or Circuit(s) Protected
B1 15A Audio-navigation unit(1). Audio unit(2), Cargo area light, Data link connector (DLC), Driver's vanity mirror light (With vanity mirror light). Passenger's vanity mirror light (With vanity mirror light). Driver's door courtesy light (Via courtesy light diode), Passenger's door courtesy light (Via courtesy light diode), Left rear tray light. Right rear tray light, Gauge control module, Immobilizer-keyless control unit, HandsFreeLink control unit(3), Individual map light, MICU (+ B BACK UP), Motor control module (MCM)
B2 7.5A TPMS control unit(4)
B3 20A Power window master switch
B4 -- Not used
B5 10A Audio-navigation unit(1), Back-up light switch (M/T), Back-up lights (M/T), ECM (BACK LT) (M/T), Transmission range switch (CVT), MICU (BACK LT)
B6 10A SRS unit (VB)
B7 10A PCM (MISS SOL) (CVT)
B8 7.5A ODS unit, Front passenger's airbag cutoff indicator, SRS unit (VA)
B9 20A Fog light relay(5), Fog lights (Via fog light relay)(5)
B10 7.5A A/C compressor clutch relay, Blower motor relay, Climate control unit, Driver's seat heater relay (HIGH) (Via Driver's seat heater switch) (6), Driver's seat heater relay (LOW) (Via Driver's seat heater switch) (6), Fan control relay (Via A/C diode B), Optional connector, Passenger's seat heater relay (HIGH) (Via Passenger's seat heater switch) (6), Passenger's seat heater relay (LOW) (Via Passenger's seat heater switch) (6), Power mirror switch, Radiator fan relay (Via A/C diode B), Rear window defogger relay, Recirculation control motor, Seat heater switch indicators(6), 3-mode switch
B11 7.5A EPS control unit, VSA modulator-control unit (MTR), Yaw rate-acceleration sensor
B12 10A Brake pedal position switch (M/T), Idle stop switch (CVT), DC-DC converter, EVAP canister purge valve, Reverse lockout solenoid (M/T), MAF sensor, secondary HO2S (sensor 2)
B13 20A Accessory power socket
B14 7.5A Audio-navigation unit(1), Audio unit(2), Key interlock solenoid, HandsFreeLink control unit(3), MICU (ACC), Optional connector
B15 7.5A MICU (IG2 DAY LT)
B16 10A Rear window wiper motor
B17 20A Power window master switch, Passenger's power window motor (Via Passenger's power window switch)
B18 -- Not used
B19 -- Not used
B20 15A Immobilizer-keyless control unit, ECM/PCM (IG1)
B21 15A MICU (IG1 WASHER MTR)
B22 7.5A Electrical load detector (ELD), Gauge control module. Motor control module (MCM) (IG1), Shift lock solenoid (CVT), TPMS control unit(5)
B23 10A MICU (+B HAZARD) (Via hazard warning switch)
B24 10A High mount brake light (Via brake pedal position switch), Brake lights (Via brake pedal position switch), MICU (+ B HORN), ECM/PCM (BKSW) (Via brake pedal position switch). Low horn (Via horn relay), Horn relay
B25 20A Stereo amplifier(1)
B26 10A A/F sensor (Via A/F sensor relay), A/F sensor relay, No. 31 (7.5 A) fuse (Via A/F sensor relay)
B27 20A MICU (+B DOOR LOCK)
B28 20A MICU (+ BH/L MAIN)
B29 10A MICU (+ B PARKING LT)
B30 30A Radiator fan motor (Via radiator fan relay)
B31 7.5A Engine oil level sensor, A/C condenser fan relay (Via A/C diode A)
B32 15A Right HID unit(2)
10A Right headlight (Low beam)(3)
B33 15A Ignition coil relay. Ignition coils (Ignition coil relay)
B34 10A Left headlight (High beam)(2), Left headlight (Low beam)(3)
B35 7.5A Passenger's door lock actuator
B36 10A Driver's door lock actuator
B37 30A VSA modulator-control unit (FSR + B)
B38 -- Not used
B39 15A CKP sensor(4), CMP sensor(4), Electronic throttle control system (ETCS) control relay(4), Injectors(4), ECM/PCM (IGP)(4), PGM-FI main relay 1 (Fl MAIN), PGM-FI main relay 2 (FUEL PUMP)(4)
B40(6) 10 A Driver's seat heater (Via driver's seat heater relay), Passenger's seat heater (Via passenger's seat heater relay)
B41 -- Not used
B42 7.5A Motor control module (MCM) (Via MCM relay 1), MCM relay 1, MCM relay 2 (Via MCM relay 1)
B43 7.5A A/C compressor clutch (Via A/C compressor clutch relay)
B44 7.5A Starter cut relay (ST CUT), PCM (STS)
B45 7.5A Hatch release actuator relay, Hatch release actuator (Via hatch release actuator relay)
B46 -- Not used
B47 30A A/C condenser fan motor (Via A/C condenser fan relay)
B48 15A Left HID unit(1)
10A Left headlight (High beam)(2)
B49 7.5A Passenger's door lock actuator
B50 -- Not used
B51 10A Right headlight (High beam)
B52 15A ECM/PCM (IG1 ETCS) (Via electronic throttle control system (ETCS) control relay)
B53 15A IPU module fan (Via MCM relay 2), Motor power inverter module (Via MCM relay 2)
B54 -- Not used
B55 10A Left power mirror defogger(3). Right power mirror defogger(3)
B56 30A MICU (IG1FR WIPER)
B57 30A Blower motor (Via blower motor relay)
B58 30A VSA modulator-control unit (MR+B)
B59 30A(4) Extra window defogger(5), Noise reduction condenser(5), No. 55 (10A) fuse in the under-dash fuse/relay box(5), Rear window defogger(5)
40A(3)
B60 (IGN) 50A Ignition switch
(1) With HID
(2) Without HID
(3) With power mirror defogger
(4) Without power mirror defogger
(5) Via rear window defogger relay
(6) With seat heater
Fig 1: Identifying Under-Dash Fuse/Relay Box
G06953829Courtesy of AMERICAN HONDA MOTOR CO., INC.
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