2020 Volvo XC90 T8 Fuses and Fuse Box | How To fix Blown Fuse
The 2020 Volvo XC90 T8 is a high-end plug-in hybrid SUV renowned for its plush amenities and cutting-edge technologies. Fuse boxes and fuses play a vital part in protecting these complex electrical systems from short circuits and electrical overloads. The circuit is broken by a blown fuse, protecting the electrical components of the car from possible harm. We will discuss the significance of understanding how to repair a blown fuse in your 2020 Volvo XC90 T8 in this introduction. With this information, you can effectively evaluate and resolve electrical faults and make sure that driving your SUV remains safe and dependable. Having an understanding of fuses and fuse boxes in your XC90 T8 may help you maintain the vehicle’s performance and functionality, whether you’re fixing a faulty accessory or fixing a lighting issue.
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Fuses and fuseboxes
All electrical functions and components are protected by a number of fuses in order to protect the vehicle’s electrical system from damage by short-circuiting or overloading.
WARNING
Never use a foreign object or a fuse with a higher amperage than that specified to replace a fuse. This could cause significant damage to the electrical system and possibly lead to a fire. Orange wiring may only be handled by qualified personnel. A number of electrical components in Twin Engine Plug-in Hybrid vehicles use high-voltage current and can be extremely dangerous if handled incorrectly. Do not touch anything that is not clearly described in the vehicle’s Owner’s Manual.
If any electrical component or function is not responding, the component may have blown a fuse due to temporary overload. If the same fuse blows repeatedly, there may be a problem with the component. Volvo recommends contacting an authorized Volvo workshop to have the components checked.
Location of fuseboxes
The illustration is generic – appearance may vary according to vehicle model.
- Engine compartment
- Under the glove compartment
- Trunk/cargo compartment
Replacing fuses
All electrical functions and components are protected by a number of fuses in order to protect the vehicle’s electrical system from damage by short-circuiting or overloading.
-
Refer to the fuse diagram to locate the fuse.
-
Pull out the fuse and examine it from the side to determine if the curved metal wire in the fuse is intact.
-
If the wire is broken, replace the fuse with a new fuse of the same colour and amperage.
WARNING
Never use a foreign object or a fuse with a higher amperage than that specified to replace a fuse. This could cause significant damage to the electrical system and possi-bly lead to a fire. Contact an authorized Volvo workshop for assistance replacing fuses not listed in the Owner’s Manual. If fuse replacement is performed incorrectly, significant damage can be caused to the electrical system.
Fuses in the engine compartment
The fuses in the engine compartment help protect electrical components such as engine and brake functions.
Fuse pliers are provided on the inside of the fuse box cover to assist in removing and inserting fuses. There are also spaces for several extra fuses in the fusebox.
Positions
There is a decal with a diagram of the locations of the fuses on the inside of the cover.
| Function | Ampere | Type |
| – | – | Micro |
| – | – | Micro |
| – | – | Micro |
| Control module for actuator for engaging/changing gears, automatic transmission | 5 | Micro |
| High-voltage coolant heater control module | 5 | Micro |
| Control module for A/C; heat exchanger cut-off valve; cut-off valve for coolant through the climate system | 5 | Micro |
| Hybrid battery control module; high-voltage converter for combined high-voltage generator/starter motor with 500 V– 12 V voltage converter | 5 | Micro |
| – | – | Micro |
| Converter for controlling feed to rear axle electric motor | 10 | Micro |
| Hybrid battery control module; high-voltage converter for combined high-voltage generator/starter motor with 500 V– 12 V voltage converter | 10 | Micro |
| Charge module | 5 | Micro |
| Cut-off valve for hybrid battery coolant; coolant pump 1 for hybrid battery | 15 | Micro |
| Coolant pump for electric drive system | 15 | Micro |
| Hybrid component cooling fan | 25 | MCaseA |
| – | – | MCase |
| – | – | MCase |
| – | – | MCase |
| Calculation module | 5 | Micro |
| – | – | Micro |
| – | – | Micro |
| – | – | Micro |
| – | – | Micro |
| – | – | Micro |
| 12 V outlet in tunnel console, front | 15 | Micro |
| 12 V outlet in tunnel console between second-row seatsB
12 V outlet in tunnel console, between rear seatsC; USB ports in tunnel console between rear seatsC |
15 | Micro |
| 12 V outlet in trunk/cargo compartment*
USB ports in head restraint right/leftC |
15 | Micro |
| – | – | Micro |
| Driver-side headlight, LEDD | 15 | Micro |
| Passenger-side headlight, LED | 15 | Micro |
| – | – | Micro |
| – | – | MCase |
| – | – | MCase |
| Headlight washers* | 25 | MCase |
| Windshield washer | 25 | MCase |
| – | – | Micro |
| Horn | 20 | Micro |
| Alarm siren* | 5 | Micro |
| Brake system control module (valves, parking brake) | 40 | MCase |
| Wipers | 30 | MCase |
| Rear window washer | 25 | MCase |
| – | – | MCase |
| Parking heater* | 20 | MCase |
| Brake system control module (ABS pump) | 40 | MCase |
| – | – | MCase |
| – | – | MCase |
| Fed when ignition is on: Engine control module; transmission components, electrical power steering, central electrical module | 5 | Micro |
| Exterior vehicle sound (certain markets) | 5 | Micro |
| Passenger-side headlight, LED | 15 | Micro |
| – | – | Micro |
| – | – | Micro |
| – | – | Micro |
| Airbags; Passenger weight sensor | 5 | Micro |
| Driver-side headlight, LED | 15 | Micro |
| Accelerator pedal sensor | 5 | Micro |
| Transmission control module; gear selector control module | 15 | Micro |
| Engine control module | 5 | Micro |
| – | – | Micro |
| – | – | Micro |
| – | – | Micro |
| – | – | Micro |
| Engine control module; actuator; throttle unit; turbo-charger valve | 20 | Micro |
| Solenoids; Valve; Overpressure coupling | 10 | Micro |
| Vacuum regulator; Electric bypass valve: Ventilation valve | 7.5 | Micro |
| Spoiler damper control module; Cooler damper control module | 5 | Micro |
| – | – | Micro |
| Heated oxygen sensor front and rear | 15 | Micro |
| Oil pump solenoid; A/C magnetic coupling; Heated oxygen sensor front, center and rear | 15 | Micro |
| – | – | Micro |
| Engine control module | 20 | Micro |
| Ignition coils; spark plugs | 15 | Micro |
| – | – | MCase |
| – | – | MCase |
| Transmission oil pump control module | 30 | MCase |
| – | – | MCase |
| Transmission actuator | 25 | MCase |
| – | – | MCase |
| – | – | MCase |
| – | – | MCase |
- This type of fuse should be replaced by a workshop. An authorized Volvo workshop is recommended.
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- LED (Light Emitting Diode)
Fuses under the glove compartment
Fuses under the glove compartment protect e.g. electrical outlets, displays and door modules.
- Fuse pliers are provided on the inside of the fuse box cover to assist in removing and inserting fuses.
- There are also spaces for several extra fuses in the distribution box in the engine compartment.
Positions
There is a decal with a diagram of the locations of the fuses on the inside of the cover.
| Function | Ampere | Type |
| Medium voltage module | 10 | Micro |
| – | – | MCaseA |
| – | – | Micro |
| Movement sensor* | 5 | Micro |
| Media player | 5 | Micro |
| Instrument panel | 5 | Micro |
| Center console buttons | 5 | Micro |
| Sun sensor | 5 | Micro |
| – | – | Micro |
| – | – | Micro |
| Steering wheel module | 5 | Micro |
| Module for start knob and parking brake controls | 5 | Micro |
| Heated steering wheel* module | 15 | Micro |
| – | – | Micro |
| – | – | Micro |
| – | – | Micro |
| – | – | Micro |
| Climate system control module | 10 | Micro |
| – | – | Micro |
| Data link connector OBD-II | 10 | Micro |
| Center display | 5 | Micro |
| Climate system blower module (front) | 40 | MCaseA |
| USB HUB | 5 | Micro |
| Instrument lighting; Interior lighting; Rearview mirror auto-dim function*; Rain and light sensors*; Rear tunnel console keypad, second row of seats*B; Power front seats*; Rear door control panels; Climate system blower module left/right
Power rear seatsC; Display for rear seat convenience functionsC; Rear seat massage functionC |
7.5 | Micro |
| Control module for driver support functions | 5 | Micro |
| Panoramic roof with sun curtain* | 20 | Micro |
| Head-up display* | 5 | Micro |
| Passenger compartment lighting | 5 | Micro |
| – | – | Micro |
| Ceiling console display (seat belt reminder/front passenger side airbag indicator) | 5 | Micro |
| – | – | Micro |
| Micro | ||
| – | – | Micro |
| Fuses in the trunk/cargo compartment | 10 | Micro |
| Control module for Internet-connected vehicle; Control module for Volvo On Call | 5 | Micro |
| – | 20
– |
Micro |
| Infotainment control module (amplifier) | 40 | MCaseA |
| Climate system blower module (rear)* | 40 | MCaseA |
| Multi-band antenna module | 5 | Micro |
| Front seat massage function* | 5 | Micro |
| – | – | Micro |
| Rear window wiper | 15 | Micro |
| Fuel pump control module | 15 | Micro |
| Relay coils in distribution box in engine compartment; Relay coil for transmission oil pump; Medium-voltage converter; Integrated start generator | 5 | Micro |
| Opening trunk/tailgate with foot movement* | 5 | Micro |
| Driver’s seat heating | 15 | Micro |
| Front passenger’s seat heating | 15 | Micro |
| Coolant pump | 7.5 | Micro |
| – | – | Micro |
| Power driver’s seat* | 20 | Micro |
| Active chassis control module* | 20 | Micro |
| – | – | Micro |
| Sensus control module | 10 | Micro |
| – | – | MCaseA |
| – | – | Micro |
| Power front passenger seat* | 20 | Micro |
| Display for rear seat convenience functions; On-board diagnostics (OBD II) in tunnel console between rear seatsD; Extra movement sensorD | 5D | Micro |
| TV* (certain markets only) | 5 | Micro |
| Primary fuse for fuses 52, 53, 57 and 58 | 15 | Micro |
- This type of fuse should be replaced by a workshop. An authorized Volvo workshop is recommended.
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Fuses in the cargo compartment
The fuses in the cargo compartment help protect electrical components such as the power seats*, airbags and seat belt tensioners.
- The fuse box is located under the storage compartment on the right-hand side.
- Fuse pliers are provided on the inside of the fuse box cover to assist in removing and inserting fuses.
- There are also spaces for several extra fuses in the distribution box in the engine compartment.
Positions
| Function | Ampere | Type |
| – | – | MCaseA |
| Central electrical module | 40 | MCaseA |
| Pneumatic suspension* compressor | 40 | MCaseA |
| MCaseA | ||
| Rear electric heater (right-hand side) | 30 | |
| Electrical outlets in the tunnel console between the rear seatsB | 30B | MCaseA |
| Rear electric heater (left-hand side) | 30 | MCaseA |
| Power front passenger seat*
Door module right side, rear |
20 | MCaseA |
| Control module for reduction of nitrous oxides (diesel) | 30 | MCaseA |
| Power rear seat (right-hand side)B | 20 | |
| Power tailgate* | 25 | MCaseA |
| Power front passenger seat*
Door module right side, front |
20 | MCaseA |
| Towbar* control module | 40 | MCaseA |
| Seat belt tensioner module (right side) | 40 | MCaseA |
| Internal relay windings | 5 | Micro |
| – | – | Micro |
| Power rear seat, left sideB | 20 | |
| Door module left side, rear | 20 | Micro |
| USB hub/accessory port | – | Micro |
| Module for electrically folding third-row seats* | 20 | Micro |
| Towbar* control module | 25 | MCaseA |
| Accessory module | 40 | MCaseA |
| Power driver seat*
Door module left side, front |
20 | MCaseA |
| Seat belt tensioner module (left side) | 40 | MCaseA |
| Park Assist Camera* | 5 | Micro |
| – | – | Micro |
| – | – | Micro |
| – | – | Micro |
| Feed when ignition is on | 10 | Micro |
| – | – | Micro |
| CoolerB; Heated/cooled cup holder (rear)B
Accessory module |
10B
5 |
Micro |
| Heated rear seat (left side)* | 15 | Micro |
| – | – | Micro |
| Blind Spot Information (BLIS)*
Exterior reverse signal control module |
5 | Micro |
| – | – | Micro |
| Modules for seat belt tensioners | 5 | Micro |
| Emissions system actuator (gasoline, certain engine variants) | 5 | Micro |
| – | – | Micro |
| – | – | Micro |
| Heated rear seat (right side)* | 15 | Micro |
| – | – | MCaseA |
- This type of fuse should be replaced by a workshop. An authorized Volvo workshop is recommended.
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FAQs
The XC90 T8 typically has two fuse boxes: one in the engine compartment and another inside the cabin, often under the dashboard.
Fuses in the XC90 T8 protect electrical components by interrupting the circuit when an electrical overload or short circuit occurs, preventing damage.
A blown fuse often has a visibly broken or melted filament inside. You can also use a multimeter to check for continuity.
To fix a blown fuse, you may need a flashlight, a fuse puller, and replacement fuses with the same amperage rating.
Yes, replacement fuses are typically available at auto parts stores or can be purchased online.
Fuses come in various amperage ratings, indicating the maximum amount of current they can handle before breaking the circuit. Always replace a blown fuse with one of the same amperage rating.
Insert the fuse puller over the blown fuse, squeeze the handles together, and gently pull the fuse out of its socket.
It’s not recommended to use a higher amperage fuse, as it can lead to electrical system damage or fires. Always replace with the same amperage fuse.
If a replacement fuse continues to blow, it indicates an underlying electrical problem that should be diagnosed and repaired by a professional mechanic.
After replacing a blown fuse with a new one, the circuit should automatically reset, restoring power to the affected electrical component.
For safety, it’s generally a good practice to disconnect the vehicle’s battery when working with fuses to prevent accidental electrical shorts.
Yes, you can often find a fuse diagram in your vehicle’s owner’s manual or by searching online for an XC90 T8 fuse box diagram specific to your model year.
Common electrical issues can vary, but blown fuses can affect various electrical components. Other issues may include malfunctioning accessories or lighting problems.
To prevent blown fuses, avoid overloading electrical circuits, ensure all accessories are properly connected, and periodically inspect your vehicle’s electrical systems.
If you’re unsure about fixing a blown fuse or if the problem persists, it’s advisable to consult your Volvo dealer or a certified mechanic for professional assistance. Electrical issues can be complex, and safety is paramount when working on your vehicle’s electrical systems.
Useful Link
View Full PDF: Volvo XC90 T8 2020 User Manual
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