McLaren 720S 2022 Fuse Box Info
Passenger compartment fuse box location:
The fuse box 1 (Main fuse box) is located behind a panel in the rear bulkhead, behind the left-hand seat.
The fuse box 2 (Secondary fuse box) is located below the dashboard on the passenger’s side.
Luggage compartment fuse box location:
The fuse box is located at the battery.
Fuse Box Diagram | Layout
Passenger compartment fuse box 1:
Fuse/Relay N° | Rating | Functions |
F1 | 60A | Right-Hand Secondary Air Pump |
F2 | 60A | Left-Hand Secondary Air Pump |
F3 | 20A | Tonneau Motor Right-Hand (Spider Only) |
F4 | 20A | Tonneau Motor Left-Hand (Spider Only) |
F5 | 30A | Transmission Control Unit |
F6 | 30A | Transmission Control Unit |
F7 | 30A | Starter |
F8 | 30A | Heated Rear Window |
F9 | 30A | Audio Amplifier (16 Channel) |
F10 | 20A | Roof Central ECU (Spider Only) |
F11 | 20A | Roof Central ECU (Spider Only) |
F12 | 20A | Roof Main Motor Left-Hand (Spider Only) |
F13 | 5A | Transmission Control Unit |
F14 | 5A | Engine Control Module |
F15 | 10A | Relays |
F16 | - | - |
F17 | 3A | Door Locking Switch |
F18 | 50A | ECU Main Relay Feed |
F19 | 40A | Fuel Pump |
F20 | 30A | Seat Driver’s |
F21 | 30A | Seat Passenger’s |
F22 | 20A | Roof Main Motor Right-Hand (Spider Only) |
F23 | 5A | Tilt and Microwave Sensor |
F24 | 20A | Infotainment Control Unit |
F25 | 10A | Driver’s/Passenger’s Door Latch |
F26 | 3A | Auxiliary USB Board |
F27 | - | - |
F28 | - | - |
F29 | - | - |
F30 | - | - |
F31 | 50A | Cooling Fan Left-Hand |
F32 | 50A | Cooling Fan Right-Hand |
F33 | - | - |
F34 | - | - |
F35 | - | - |
F36 | 20A | ECM Power Supply |
F37 | 15A | Canister Purge, Lambda Sensors, Cooling Fan Relay Coil |
F38 | 15A | Fuel Injection and Ignition - Left-Hand Bank |
F39 | 15A | Fuel Injection and Ignition - Right-Hand Bank |
F40 | 10A | Engine Ancillaries |
R41 | - | - |
R42 | - | - |
R43 | - | - |
R44 | - | - |
F45 | 10A | Electrical Thermostats, Camshaft Actuators |
F46 | 3A | Output Shaft Speed, Even Gear Shaft Speed |
F47 | 3A | Input Shaft Speed, Odd Gear Shaft Speed |
F48 | - | - |
F49 | 5A | Starter |
R50 | - | - |
R51 | - | Heated Rear Window |
R52 | - | - |
R53 | - | Transmission Control Unit |
R54 | - | Transmission Control Unit |
R55 | - | Starter |
R56 | - | Secondary Air Pump RH |
R57 | - | Cooling Fans |
R58 | - | ECU Main relay Feed |
Passenger compartment fuse box 2:
Fuse/Relay N° | Rating | Functions |
F1 | 20A | Driver’s door |
F2 | 20A | Passenger’s door |
F3 | 25A | Lights |
F4 | 35A | Lights |
F5 | 35A | Body |
F6 | 35A | Body |
F7 | 35A | Alarm |
F8 | - | - |
F9 | - | - |
F10 | - | - |
F11 | - | - |
F12 | - | - |
F13 | - | - |
F14 | 5A | Transmission Control Unit |
F15 | 10A | Air Conditioning |
F16 | 3A | Alarm Control Unit |
F17 | 3A | Tracker |
F18 | 7.5A | Alarm |
F19 | 5A | Central Display |
F20 | 3A | Transmission Control Unit Relays |
F21 | 15A | Display Control Unit |
F22 | - | - |
F23 | 5A | Driver Display |
F24 | 10A | Development Connector |
F25 | 10A | OBD2 Diagnostics |
F26 | - | - |
F27 | - | - |
F28 | - | - |
F29 | - | Transmission Control Unit |
F30 | - | Transmission Control Unit |
Luggage compartment fuse box:
Fuse/Relay N° | Rating | Functions |
F1 | 30A | Transmission Control Unit |
F2 | 30A | Transmission Control Unit |
F3 | 30A | Air Conditioning - Motor - Control Module |
F4 | 50A | Secondary Fuse Box Supply |
F5 | 20A | Electronic Stability Control Valves |
F6 | 40A | Electronic Stability Control Motor |
F7 | 20A | Auxiliary Power Socket - Luggage Compartment |
F8 | 40A | Secondary Fuse Box Supply |
F9 | 100A | Electro Hydraulic Power Assisted Steering |
F10 | 200A | Main Fuse Box Supply |
F11 | 30A | Secondary Fuse Box Supply |