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 (C)
2015 Acura RLXSECTION Under-Hood Fuse/Relay Box (C)
Under-Hood Fuse/Relay Box (C) Legend
| Fuse Number | Amps | Component(s) or Circuit(s) Protected |
|---|---|---|
| C1 | 15 A | Active control engine mount (ACM) control relay, Electrical load detector (ELD) in the main under-hood fuse box, 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 | --- | Not used |
| C6 | 7.5 A | EPS control unit |
| C7 | 7.5 A | Headlight leveling control unit, Windshield wiper control unit/motor |
| C8 | 15 A | EVAP canister vent shut valve *1, Front A/F sensor (Bank 2, Sensor 1) (via PGM-FI subrelay), Front secondary HO2S (Bank 2, Sensor 2) (via PGM-FI subrelay), PGM-FI subrelay, Rear A/F sensor (Bank 1, Sensor 1) (via PGM-FI subrelay), Rear secondary HO2S (Bank1, Sensor 2) (via PGM-FI subrelay) |
| C9 | 15 A | PCM (IG1M) (via electronic throttle control system (ETCS) control relay) |
| C10 | 15 A | CKP sensor (via PGM-FI main relay 1), CMP sensor (via PGM-FI main relay 1), Electronic throttle control system (ETCS) control relay (via PGM-FI main relay 1), Injector relay (via PGM-FI main relay 1), PCM (IGP) (via PGM-FI main relay 1), PGM-FI main relay 1, PGM-FI main relay 2 (via PGM-FI main relay 1) |
| 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 | --- | Not used |
| C14 | 10 A | Battery sensor, Door courtesy lights (via interior lights cut relay and driver's under-dash fuse/relay box), Front footwell lights (via interior lights cut relay and driver's under-dash fuse/relay box), Interior lights cut relay, Rear foowell lights *2, Rear individual map light (via interior lights cut relay and driver's under-dash fuse/relay box), Roof console module (via interior lights cut relay and driver's under-dash fuse/relay box), Trunk lid light (via interior lights cut relay and driver's under-dash fuse/relay box), Trunk light (via interior lights cut relay and driver's under-dash fuse/relay box), Vanity mirror lights (via interior lights cut relay and driver's under-dash fuse/relay box) |
| C15 | 10 A | ANC/active sound control unit, Audio-navigation unit *4, Audio unit *3, Center display unit, Telematic control unit *5 |
| C16 | 10 A | ACC unit *6, Data link connector (DLC) (via driver's under-dash fuse/relay box), Gauge control module (via driver's under-dash fuse/relay box), HomeLink unit, Keyless access control unit (+B BACK UP) (via driver's under-dash fuse/relay box), MICU (+B BACK UP), Power mirror control unit (via driver's under-dash fuse/relay box), Power seat control unit (via driver's under-dash fuse/relay box), Power tilt/telescopic steering control unit (via driver's under-dash fuse/relay box), Power window master switch (via driver's under-dash fuse/relay box), 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 | ACC unit *6 (via brake light relay), Brake lights (via brake light relay), High mount brake light (via brake light relay), Keyless access control unit (STOP SW) (via brake pedal position switch), MICU (BRK DIAG) (via brake light relay), PCM (STOP SW) (via brake pedal position switch), VSA modulator-control unit (via brake light relay) |
| 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 | No. E25 fuse in the passenger's under-dash fuse/relay box (via taillight relay), Front parking lights (via taillight relay), Front side marker lights (via taillight relay), Inner taillights (via taillight relay), LED control units (low beam) *9 (via taillight relay), License plate lights (via taillight relay), Taillight relay, Taillights (via taillight relay) |
| C23 | 7.5 A | Not used |
| C24 | 10 A | Relay control module |
| C25 | --- | Not used |
| C26 | 15 A | Right LED control unit (low beam) |
| C27 | 15 A | Left LED control unit (low beam) |
| C28 | 7.5 A | Radiator fan control (RFC) unit relay |
| C29 | 20 A | Noise reduction condenser (via power rear window sunshade relay) *7, Power rear window sunshade control unit (via power rear window sunshade relay) *7 |
| C30 | 30 A | Headlight washer motor (via headlight washer relay) *8, Headlight washer relay *8 |
| C31 | 30 A | Windshield wiper control unit/motor |
| *1: USA and Canada models *2: With rear footwell light *3: Without navigation *4: With navigation *5: With AcuraLink *6: With ACC *7: With power rear window sunshade *8: With headlight washer *9: USA and Mexico models |
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RENDER: 1.0x
NO RELATED
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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.