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.
Under-Hood Fuse/Relay Box
2015 Acura RLXSECTION Under-Hood Fuse/Relay Box
Under-Hood Fuse/Relay Box Legend
| Fuse Number | Amps | Component(s) or Circuit(s) Protected |
|---|---|---|
| C1 | 15 A | Active control engine mount (ACM) control relay, Electrical load detector (ELD), EVAP canister purge valve, PCM (BKSWNC) (via brake pedal position switch), PCM (IG1 (VBSOL)) |
| C2 | 10 A | MAF sensor, PCM (IG1 MISS SOL) |
| C3 | --- | Not used |
| C4 | --- | Not used |
| C5 | 7.5 A | Keyless access/TPMS control unit |
| C6 | 7.5 A | EPS control unit |
| C7 | 7.5 A | Headlight leveling control unit, Transmission control module (TCM), Windshield wiper control unit/motor |
| C8 | 15 A | EVAP canister vent shut valve, PGM-FI subrelay |
| Via PGM-FI subrelay:Front A/F sensor (Bank 2, Sensor 1), Front secondary HO2S (Bank 2, Sensor 2), No. C28 fuse in the under-hood fuse/relay box, Rear A/F sensor (Bank 1, Sensor 1), Rear secondary HO2S (Bank1, Sensor 2) | ||
| C9 | 15 A | PCM (IG1M) (via electronic throttle control system (ETCS) control relay) |
| C10 | 15 A | PGM-FI main relay 1 |
| Via PGM-FI main relay 1CKP sensor, CMP sensor, Electronic throttle control system (ETCS) control relay, Injector relay, PCM (IGP), PGM-FI main relay 2 | ||
| C11 | 15 A | Ignition coil relay, Ignition coils (via ignition coil relay) |
| C12 | 20 A | Engine mount control unit (via active control engine mount (ACM) control relay) |
| C13 | 7.5 A | Daytime running light relay, Headlights (via daytime running light relay) |
| C14 | 10 A | Battery sensor, Interior lights cut relay |
| Via interior lights cut relay:Door courtesy lights, Footwell lights, Rear individual map light, Roof console module, Trunk lid light, Trunk light, Vanity mirror lights | ||
| C15 | 10 A | ANC/active sound control unit, Audio-navigation unit, Center display unit, Telematics control unit |
| C16 | 10 A | CAN gateway, Data link connector (DLC), Gauge control module, HomeLink unit, Keyless access/TPMS control unit, MICU (+B BACK UP), Multipurpose camera unit, Power mirror control unit, Power seat control unit, Power tilt/telescopic steering control unit, Power window master switch, Relay control module |
| C17 | 7.5 A | A/C compressor (via A/C compressor clutch relay) |
| C18 | 15 A | Relay control module |
| C19 | 7.5 A | Via brake light relay:High mount brake light, MICU (BRK DIAG), Taillights, VSA modulator-control unit |
| Via brake pedal position switch: Keyless access/TPMS control unit, PCM (STOP SW) | ||
| C20 | 10 A | Relay control module |
| C21 | 10 A | Fuel fill door opener solenoid (via fuel fill door opener solenoid relay), Fuel fill door opener solenoid relay, Trunk lid opener solenoid (via trunk lid opener solenoid relay), Trunk lid opener solenoid relay |
| C22 | 15 A | Taillight relay |
| Via taillight relay:Headlights, Inner taillights, License plate lights, No. E25 fuse in the passenger's under-dash fuse/relay box, Taillights | ||
| C23 | --- | Not used |
| C24 | 10 A | Relay control module |
| C25 | --- | Not used |
| C26 | 15 A | Right headlight |
| C27 | 15 A | Left headlight |
| C28 | 7.5 A | RFC unit relay |
| C29 | 20 A | No. F1, No. F2, and No. F3 fuses in the auxiliary under-hood fuse/relay box |
| C30 | 30 A | Not used |
| C31 | 30 A | Windshield wiper control unit/motor |
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.