Understanding the Fuse Box of Your MG RX8
Learn about the fuse box locations, fuse specifications, and the importance of proper fuse replacement in your MG RX8. Our detailed guide helps you understand each fuse’s function and amperage, ensuring you maintain your vehicle’s electrical system efficiently.
Engine Compartment Fuse Box
Fuse Box Layout and Specifications
The engine compartment fuse box in the MG RX8 houses several fuses, each with specific functions and amperage ratings. Here’s a detailed layout and specification:
Code | Specs | Function |
---|---|---|
F1 | 15A | Engine control module |
F2 | 15A | Engine control module |
F3 | 20A | Upstream oxygen sensor, clutch water pump, VVT valve – intake, VVT valve – exhaust, intake discharge valve, exhaust gas control valve, canister control valve, electronic thermostat |
F4 | 20A | Ignition coil |
F5 | 15A | Gear selection switch, brake pedal switch, cooling fan motor |
F6 | 10A | Electronic water pump relay |
F7 | 15A | – |
F8 | 10A | Air condition compressor relay |
F9 | 30A | Sunroof control unit |
F10 | 25A | Body control module |
F11 | 20A | Fuel pump relay |
F12 | 10A | – |
F13 | 20A | Fuse F16, F17, F18, F29, F30, F31 in passenger compartment fuse box |
F14 | 5A | Airbag control module |
F15 | 10A | Engine control module |
F16 | 10A | Headlamp leveling relay |
F17 | 30A | Exterior rearview mirror heating & rear window defogger relay |
F18 | 7.5A | Front left door exterior rearview mirror, front right door exterior rearview mirror |
F19 | 30A | Rear left window lift switch |
F20 | 30A | Rear right window lift switch |
F21 | 15A | Front fog lamp relay |
F22 | 15A | Horn relay |
F23 | 30A | Front left window regulator motor |
F24 | 30A | Front right window lift switch |
F25 | 10A | Left front main beam |
F26 | 10A | Right front high beam |
F27 | 25A | Body control module |
F28 | 25A | Body control module |
F29 | 30A | Front wiper enable relay, front wiper speed relay |
F30 | 20A | Windscreen washer relay |
F31 | 15A | Rear wiper relay |
F32 | 20A | Rear window washer relay |
F33 | 20A | – |
F34 | 30A | Sunroof control unit |
F35 | 30A | – |
F36 | 25A | DC/AC converter |
F37 | 10A | – |
F38 | 5A | Engine control module |
F39 | 30A | – |
F40 | 20A | – |
F41 | 20A | Driver seat heater relay |
F42 | 15A | Steering wheel heater relay |
F43 | 20A | Front passenger seat heater relay |
F44 | – | – |
F45 | – | – |
F46 | – | – |
F47 | – | – |
F48 | – | – |
F49 | – | – |
F50 | – | – |
SB1 | 40A | Main relay |
SB2 | 50A | Cooling fan motor |
SB3 | 40A | Fuse F6, F7, F8, F9, F19, F20, F21, F22, F23 in passenger compartment fuse box |
SB4 | 30A | Seat memory module, driver seat adjustment switch (without seat memory) |
SB5 | 25A | Body control module |
SB6 | 20A | Anti-lock brake system (valve) |
SB7 | 30A | Left motor of electronic parking brake |
SB8 | 40A | ABS control unit |
SB9 | 30A | DC-DC converter |
SB10 | 40A | Starter relay, KLR relay |
SB11 | 40A | Front blower motor |
SB12 | 30A | Rear blower motor |
SB13 | 30A | Power tailgate control unit |
SB14 | 40A | – |
SB15 | 30A | Right motor of electronic parking brake |
Passenger Compartment Fuse Box
Fuse Box Layout and Specifications
The passenger compartment fuse box is located under the dashboard panel. Here’s a detailed layout and specification:
Code | Specs | Function |
---|---|---|
F1 | 15A | Rear loadspace power socket |
F2 | – | – |
F3 | 10A | Interior rearview mirror, wireless charging of mobile phone, solar sensor USB port, rear seat USB port |
F4 | 10A | 220V power socket |
F5 | 15A | Centre console power socket |
F6 | 10A | Front left window lift switch |
F7 | 15A | Rear seat A/C control panel, entertainment panel switch, DLC |
F8 | 25A | Body control module |
F9 | 5A | ABS control unit |
F10 | – | – |
F11 | 10A | Passive entry and passive start (PEPS) control unit, rain sensor, front passenger seat ventilation |
F12 | 10A | Seat memory module, driver seat ventilation |
F13 | – | – |
F14 | 10A | Air cleaner, gear display |
F15 | – | – |
F16 | 10A | 6AT gear shift mechanism |
F17 | 10A | Driving mode selection switch, centre console switch |
F18 | 10A | Body control module |
F19 | 25A | Front passenger seat adjustment switch |
F20 | 25A | Body control module |
F21 | 10A | Airbag control module |
F22 | 10A | Active safety camera, tyre pressure monitoring system, antitheft control system |
F23 | 10A | Communication module |
F24 | 15A | Colour radio/INKANET mainframe |
F25 | – | – |
F26 | 10A | Gateway, wireless charging of mobile phone |
F27 | 25A | Transfer case control module |
F28 | 10A | Electronic parking switch |
F29 | 10A | Parking assist sensor |
F30 | 10A | DC-DC converter |
F31 | 10A | Instrument pack, air quality sensor |
F32 | 15A | Transmission control unit |
F33 | 10A | Instrument pack |
F34 | 10A | A/C control unit |
How to Check or Replace a Fuse
- Turn off the ignition switch and all electrical appliances, and disconnect the battery negative cable.
- Press the catch to open the engine compartment fuse box cover.
- Hold the fuse head with the fuse extraction tool, pull and remove the fuse, and check if the fuse is blown.
- If a fuse is blown, replace it with another fuse of the same ampere value.
Bulb Replacement Guide
Bulb Specifications
Bulb | Type |
---|---|
Front Turn Signal Lamp | WY21W 21W |
Vanity Mirror Lamp | C5W 5W |
License Plate Lamp | W5W 5W |
Glove Box Lamp | C10W 10W |
Note: Other light sources not included in the list are all LEDs, which cannot be replaced individually. Only the assembly maintenance is provided.
Before replacing any bulb, turn off the ignition switch and lighting switch to avoid any possibility of a short circuit. Always replace bulbs with the same type and specification.
Conclusion
Maintaining the fuses in your MG RX8 ensures that your vehicle’s electrical components function correctly. Refer to the detailed fuse specifications to understand the role of each fuse and follow the proper steps for checking and replacing fuses. For bulb replacements, always use the specified types to avoid any electrical issues.
Source: Source: https://www.mgmotor.me/ownership/mg-owners-manual/