Aston Martin BX 2021 Electrical Systems User Manual
Electrical Systems
Fuses
The electrical systems are protected by fuses. If any lamps, accessories, or controls do not function, inspect the applicable fuse.
If a fuse has blown, the inside element will be melted. If the same fuse blows again, avoid using that system and consult your Aston Martin Dealer as soon as possible.
| F1 | 15A | Exhaust Flaps/ Coolant Sensor | F1 | 10A | Trickle Charger |
| F2 | 15A | Low Temperature Coolant Pump 2 | F2 | 15A | CPC |
| F3 | 15A | Low Temperature Coolant Pump 3 | F3 | 7.5A | Instrument Cluster |
| F4 | 20A | Low Temperature Coolant Pump 1 | F4 | – | – |
| F5 | 20A | Engine Harness | F5 | 10A | Keyless Go |
| F6 | 15A | Engine Harness | F6 | 15A | Left Side Front Seat Adjust |
| F7 | 15A | Engine Harness | F7 | 5A | RKE Antenna |
| F8 | 15A | Engine Harness | F8 | 5A | Rear HVAC Control Panel |
| F9 | 5A | Common Powertrain Control (CPC) | F9 | 10A | Keyless Go Antenna |
| F10 | 5A | Engine Harness | F10 | 10A | HVAC Boosters and Diverters |
| F11 | 5A | Electronic Stability Program (ESP) Unit | F11 | 7.5A | Occupant Restraint Control (ORC) |
| F12 | 20A | BCM-F and OBD | F12 | 5A | Rain Light Sensor |
| F13 | 15A | Horn | F13 | 10A | Electronic Ignition Switch |
| F14 | 30A | Starter Motor | F14 | 7.5A | Multi Purpose Camera |
| F15 | 5A | – | F15 | 7.5A | Infotainment Head Unit |
| F16 | 5A | – | F16 | 5A | TPMS |
| F17 | 5A | Front Active Roll Control (ARC) | |||
| F18 | – | – | |||
| F19 | 20A | Left Headlamp | |||
| F20 | 20A | Right Headlamp | |||
| F21 | 30A | Left Side Wiper Motor | |||
| F22 | 30A | Right Side Wiper Motor | |||
| F23 | 40A | ESP Unit | |||
| F24 | 60A | ESP Unit | |||
| F25 | 100A | Fan Motor | |||
| F26 | 150A | Electrical Power Steering Control Unit | |||
| F1 | 30A | Right Side Front Door Control Module | F1 | – | – |
| F2 | 40A | BCM-F | F2 | 15A | Steering Column Control Module SCCM |
| F3 | 20A | DRVU | F3 | 5A | – |
| F4 | 15A | Right Side Front seat Adjust | F4 | 7.5A | SCCM |
| F5 | 30A | Left Side Front Door Control Module | F5 | 15A | HVAC |
| F6 | 40A | Body Control Module-Front (BCM-F) | F6 | 10A | OBD port |
| F7 | 15A | Ignition Relay | F7 | 10A | Rotary Controller / Touchpad |
| F8 | 10A | Body Control Module-Rear (BCM-R) | F8 | 15A | eCall Module |
| F9 | 30A | Left Side Rear Door Control Module | F9 | 5A | HVAC Control |
| F10 | 30A | Right Side Rear Door Control Module | F10 | 7.5A | Ambient Lighting |
| F11 | 15A | Infotainment Head Unit | F11 | 10A | Instrument Cluster |
| F12 | 7.5A | – | F12 | 7.5A | Centre Display |
[E] Rear Fuse Box
| F1
F2 |
40A
50A |
Air Suspension Pump
Rear Window Heater |
| F3 | 15A | Front 12V Power Socket |
| F4 | 15A | Luggage Compartment 12V Power Socket |
| F5 | 15A | Rear Console 12V Power Socket |
| F6 | 5A | – |
| F7 | 5A | Rear Active Roll Control (ARC) |
| F8 | 5A | Electronic Differential |
| F9 | 5A | Tuner |
| F10 | 5A | – |
| F11 | 5A | 48V Battery |
| F12 | 7.5A | Park Assist Module |
| F13 | 7.5A | – |
| F14 | 10A | Electronic Differential |
| F15 | 10A | Vehicle Alarm |
| F16 | 10A | Electronic Differential |
| F17 | 15A | – |
| F18 | 15A | Air Suspension Module |
| F19 | 15A | Air Suspension Module |
| F20 | 15A | – |
| F21 | 15A | – |
| F22 | 20A | – |
| F23 | 25A | Fuel Pump Control |
| F24 | 25A | – |
| F25 | 25A | Driver’s Seat Module |
| F26 | 25A | Front Passenger Seat module |
| F27 | 30A | – |
| F28 | 30A | – |
| F29 | 30A | – |
| F30 | 30A | – |
| F32 F33 F34
F35 |
30A
30A 30A 40A |
–
Transfer Box Roller Blind Module Trailer Module |
F1 F2 F3
F4 |
40A
40A 40A 40A |
Inline Trailer Fuse Inline Trailer Fuse Inline Trailer Fuse
Inline Trailer Fuse |
| F36 | 40A | Trailer Module | |||
| F37 | 40A | – | |||
| F38 | 40A | BCM-R | |||
| F39 | 40A | BCM-R | |||
| F40 | 40A | Amplifier | |||
| F41 | – | – | |||
| F42 | 40A | Tailgate Module | |||
| F43 | 40A | HVAC Blower |
Battery Fuse Box
F1 N/A1
Pyrotechnic Battery Disconnect Switch
Main Power Feed
F2 40A Keep Awake
F3 250A Engine Fuse Box
F4 200A Rear Fuse Box
F5 60A Instrument Panel Fuse box
F6 60A Transmission
F7 60A Front Cabin Fuse box
F1 40A Rear Anti-Roll Bar
F2 40A Front Anti-Roll Bar
Battery Disconnect Switch
The battery disconnect switch is designed to operate in both over-current and crash events. When activated, the switch will completely isolate the electrical system from the battery to reduce the risk of electric shock or a vehicle fire. The battery disconnect switch is a single-use item and will require replacement if it has been activated.
12V Battery
Battery Warnings
Warning: Do not allow flames, sparks or lighted substances to come near the battery. Batteries normally produce explosive gases when charged or when jump started. When working near the battery, always make sure that neither you nor the battery is electrostatically charged. Always have sufficient ventilation.
Warning: Never place metal objects on the battery or allow the positive terminal of the battery to contact parts of teh vehicle body. This can create a spark or a short circuit which can ignite gases created when the battery is charged.
Warning: When lifting a plastic cased battery, excessive pressure on the end walls could cause acid to flow through the vent caps, resulting in personal injury, damage to the vehicle or battery. Lift the battery with a battery carrier or with your hands on opposite corners.
Warning: Keep batteries out of reach of children.
Warning: Batteries contain sulphuric acid. Avoid contact with skin, eyes or clothing. Shield your eyes when working near the battery to protect against possible splashing of acid solution. In case of acid contact with skin or eyes, flush immediately with water for a minimum of 15 minutes and get prompt medical attention. If acid is swallowed, get medical help immediately.
Caution: The engine must never be run with the vehicle battery disconnected. This can cause damage to vehicle electrical modules.
Caution: Apart from vehicle recovery, this vehicle must not be driven if the vehicle battery is incapable of starting the engine. In this case the vehicle battery must be replaced. Contact your Aston Martin Dealer.
Warning: Battery posts, terminals and related accessories contain lead and lead compounds. Wash hands after handling.
Vehicle Battery:
Banner 92 Ah
The vehicle battery is maintenance-free and should only require checking by your Aston Martin Dealer during regular vehicle services.
48V Battery
Warning:
The 48V battery must never be used in a jump start scenario to either supply or receive power. There is risk of serious damage to the batteries and the electrical system on one or both vehicles, which can cause injury or death.
Warning:
Never connect external electrical equipment, such as a battery charger, to the 48V battery. There is risk of serious damage to the batteries and the electrical system, which can cause injury or death.
48V Battery:
8 Ah Lithium-Ion The 48V battery is an auxiliary high power battery and is maintenance free. This battery must only be checked by your Aston Martin Dealer and is not user serviceable.
Charging
The 48V battery is charged directly from the standard 12V and does not require external charging.
Battery Level Protection
Caution: If the battery is not capable of starting the engine, replace the battery as soon as possible. Using vehicle electrical systems such as the infotainment system, with the ignition ON, but the engine OFF, will drain the battery charge. To prevent battery voltage falling below the level required to start the vehicle, the vehicle’s battery monitoring system will shut down non-essential electrical systems before this happens. After approximately 2 to 10 minutes (dependent on the rate of battery charge drain) a message is shown in the infotainment display. If a low battery warning message shows, start the engine and let it idle so the battery can recharge1, or connect a suitable battery charger or conditioner.
Vehicle Battery Disposal
The incorrect disposal of a vehicle battery can be extremely hazardous to health and the environment. Most batteries contain materials that, when disposed of incorrectly, may leak into the environment. This can contribute to soil and water pollution and endanger wildlife. Do not dispose of a battery in fire or water. Follow your local authorized standards for disposal. Call your local authorized recycling center to find out more about recycling automotive batteries. Do not dispose of your vehicle battery in the household waste.
Battery Conditioner
(Optional)
Caution:
Do not attempt to start the vehicle with a battery conditioner connected to the mains supply. If necessary, clean the charger socket before connecting the charger plug. The Aston Martin battery conditioner is suitable for use on all types of 12 volt AGM and lead acid batteries.
If this vehicle is not going to be used for a period of time, and mains power is available, use a battery conditioner to maintain the battery charge level. When connected the battery conditioner will maintain a small trickle charge to keep the battery in a fully charged state. A battery conditioner is designed for conditioning of partially or fully charged batteries. It will not effectively charge a discharged battery. The battery conditioner uses a magnetic disc to attach to the charger socket (A). To connect the battery conditioner, attach the charger plug onto the charger socket.
For further safety information and operating instructions, refer to the instructions supplied with the battery conditioner.
Aston Martin 2023 Top Accessories
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Reference Links
View Full User Guide: Aston Martin DBX 2021 User Manual
Download Manuals: https://www.astonmartin.com/en/owners/owners-guides
