Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSACURA2015MDX BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALBODY ELECTRICALELECTRICAL SYSTEM - TESTING & TROUBLESHOOTING / GEN INFO (EXCEPT HYBRID)FUSE TO COMPONENTS INDEXFUSE TO COMPONENTS INDEX (WITH AUTO IDLE STOP SYSTEM) (2017)MAIN UNDER-HOOD FUSE BOX (B)
2015 Acura MDX Base
Main Under-Hood Fuse Box (B)
2015 Acura MDX BaseSECTION Main Under-Hood Fuse Box (B)
Main Under-Hood Fuse Box (B) Legend
| Fuse Number | Amps | Component(s) or Circuit(s) Protected | |
|---|---|---|---|
| B1 | 150 A | No. B3-1, No. B3-2, No. B3-3, No. B3-4, No. B3-5, No. B3-6, No. B3-7, No. B3-8 (with headlight washer), No. B4, No. B5, No. B6, and No. B7 fuses in the main under-hood fuse box | |
| B2 | B2-1 | 60 A | EPS control unit |
| B2-2 | 60 A | No. E14, No. E15, No. E26, No. E27, and No. E28 (with AC inverter) fuses in the passenger's under-dash fuse/relay box | |
| B2-3 | 60 A | No. F18 fuse in the rear fuse/relay box | |
| B2-4 | 60 A | No. G1, No. G3, and No. G5 fuses in the auxiliary under-dash fuse box | |
| B2-5 | 30 A | No. B10 fuse in the main under-hood fuse box, Rear blower motor (via rear blower motor relay) | |
| B2-6 | 30 A | No. B9 fuse in the main under-hood fuse box | |
| B2-7 | 20 A | VSA modulator-control unit | |
| B2-8 | 40 A | VSA modulator-control unit | |
| B3 | B3-1 | 50 A | No. D6, No. D7, and No. D9 fuses in the driver's under-dash fuse/relay box |
| B3-2 | 30 A | Under-dash subrelay box | |
| B3-3 | 60 A | No. F1, No. F3, No. F4, No. F5, No. F7 (with second row seat heater), No. F14 (with SH-AWD), No. F15, and No. F16 fuses in the rear fuse/relay box | |
| B3-4 | 50 A | No. E1, No. E2, No. E3, No. E4 (with heated windshield wiper area), No. E5, No. E6, No. E7, No. E8, No. E9, No. E11 (with heated steering wheel), and No. E18 fuses in the passenger's under-dash fuse/relay box | |
| B3-5 | 50 A | No. D15, No. D16, No. D17, No. D18, No. D19, No. D29, No. D30, No. D31, and No. D32 fuses in the driver's under-dash fuse/relay box | |
| B3-6 | 60 A | No. C20, No. C24, No. C26 (via headlight relay), No. C27 (via headlight relay), and No. C31 fuses in the under-hood fuse/relay box, Headlight relay | |
| B3-7 | 30 A | Under-dash subrelay box | |
| B3-8 | 30 A | Headlight washer motor (via headlight washer relay) (with headlight washer), Headlight washer relay (with headlight washer) | |
| B4 | 40 A | No. C8, No. C9, No. C10, No. C11, No. C12, No. C13, No. C14, No. C15, and No. C16 fuses in the under-hood fuse/relay box | |
| B5 | 40 A | Front blower motor (via front blower motor relay) | |
| B6 | 40 A | Rear window defogger (via rear window defogger relay) | |
| B7 | 30 A | No. C1 fuse in the under-hood fuse/relay box (via starter cut relay 1), Starter (via starter cut relay 1 and starter cut relay 2) | |
| B8 | 10 A | Brake lights (via taillight relay), Brake pedal position switch, High mount brake light (via taillight relay), VSA modulator-control unit (via taillight relay) | |
| B9 | 15 A | Hazard warning switch (via driver's under-dash fuse/relay box), Driver's MICU (via driver's under-dash fuse/relay box at internal connection) | |
| B10 | 7. 5 A | Battery sensor | |
| B11 | 7. 5 A | Front parking lights (via small light relay), Inner taillights (via small light relay and passenger's under-dash fuse/relay box), License plate lights (via small light relay, passenger's under-dash fuse/relay box, and rear view camera unit), No. E25 fuse in the passenger's under-dash fuse/relay box (via small light relay), Small light relay, Taillights (via small light relay and passenger's under-dash fuse/relay box) | |
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.