2020 Maserati Quattroporte Fuses and Fuse Box | How to fix a Blown Fuse
The 2020 Maserati Quattroporte is a high-end, fast sedan that blends the best of Italian craftsmanship with the latest technology. The car has a complex electrical system that powers many parts and features, just like any other high-tech car. One very important part of this system is the fuse box, which protects the car’s electrical connections. There is a network of fuses in the fuse box that protects each line from electrical overloads. When something goes wrong or the power goes out, a fuse might blow, breaking the circuit and protecting the parts that are attached. It is very important to check the fuses and the fuse box in your Maserati Quattroporte if you are having electricity problems. Most electrical problems, like lights, power windows, or other electrical items not working, can be fixed by finding and fixing a blown fuse. To properly repair and fix electrical problems in your 2020 Maserati Quattroporte, you need to know how the fuse box is organized and what each fuse does.
2023 Maserati Quattroporte Review, Specs, Price, And Mileage (Brochure)
Fuse Replacement
Used Fuses Characteristics
When an electrical device is not functioning, check that the corresponding fuse is in proper working order (intact).
A Fuse intact
B Fuse blown
On the vehicle are mainly used with mini-and maxi-fuses with blade engagement.
Besides these, there are other types of fuse provided with holes for fixing the cable connection terminals. For the replacement of these fuses contact the Service Network.
Replace the faulty fuse with a new one featuring the same rating, by using appropriate forceps added in the integrated power module and inside the cover of the rear power distribution center.
The colour identifies the value of the fuses in amperes which is also reported on them.
The table shows the match between the color and amperage of mini and maxi fuses.
| Type | |
| Mini Fuse | Maxi Fuse |
| Beige – 5 | Yellow – 20 |
| Brown – 7,5 | Green – 30 |
| Red – 10 | Orange – 40 |
| Blue – 15 | Red – 50 |
| Yellow – 20 | Blue – 60 |
| White – 25 | – |
| Green – 30 | – |
CAUTION!
- Never replace a blown fuse with anything other than a new and suitable fuse (same rating).
- After replacing a fuse, if the fault recurs, contact an Authorized Maserati Dealer.
Position of Fuses
The fuses are located in three parts of the vehicle, namely:
- inside the integrated power module, on the right-hand side of the engine compartment;
- inside the rear power distribution center, behind the battery, on the right-hand side of the boot compartment;
- on the fuse and relay box located in a covered area, under the dashboard’s left side.
Integrated Power Module
- To access the module it is necessary to lift the hood (see “Hood Operation” in the section “Before Starting”).
- To access the fuses remove the module cover unhooking the lateral locks as shown in the picture. To recognize the reference number of the fuses in the table below, see the diagram inside the cover just removed.
The table points out the position as featured in the cover, and the type and function of the fuses included in the integrated power module.
CAUTION!
- After replacement, refit the protective cover of the module.
- If you need to wash the engine compartment, do not direct the water for too long directly on the module.
| Ref. | Type | Function |
| 2 | Maxi – 50A | Secondary air pump relay input (V8 – Gasoline only) |
| 3 | Maxi – 40A | PTC heater 1 relay input (Diesel only) |
| 4 | Maxi – 30A | Starter motor relay input |
| 5 | Maxi – 40A | ABS-ESP pump feed |
| 6 | Maxi – 30A | AWD module (AWD version only) |
| 7 | Maxi – 40A | PTC heater 2 relay input (Diesel only) |
| 8 | Maxi – 40A | ABS-ESP valve feed |
| 9 | Mini – 25A | Urea (AdBlue) system (Diesel only) |
| 10 | – | – |
| 11 | Mini – 20A | Horn relay input |
| 12 | Mini – 10A | AC compressor feed relay input |
| 13 | – | – |
| 14 | Mini – 7,5A | Alarm siren |
| 15 | Mini – 10A | Washer heated nozzles relay input |
| 16 | Mini – 10A | Enable cooling fan relay input and enable cooling oil pump relay input (Gasoline only) |
| 16 | Mini – 10A | Enable cooling fan relay input (Diesel only) |
| 18 | Maxi – 40A | PTC heater 3 relay input (Diesel only) |
| 19 | – | – |
| 20 | Maxi – 30A | Wiper motor relay output |
| 21 | – | – |
| 22 | – | – |
| 23 | Maxi – 40A | Fuel heater supply (Diesel only) |
| 24 | Maxi – 50A | Glow plug heater unit (Diesel only) |
| 28 | Mini – 7,5A | Drive Assist System Module (DASM) |
| 29 | Mini – 10A | PCM module – Starter solenoid relay coil |
| 30 | Mini – 5A | ORC- Airbag module |
| 31 | Mini – 5A | ABS-ESP module |
| 32 | Mini – 5A | SSCU, AWD module (AWD version only), EPS and AQS |
| 33 | Mini – 10A | HDLP Head- lights – AFLS |
| 34 | Mini – 15A | Primary load to engine harness LH side (Gasoline only) |
| Mini – 30A | Primary load to engine harness (Diesel only) | |
| 35 | Mini – 15A | Primary load to engine harness RH side (Gasoline only) |
| 36 | Mini – 30A | PCM module primary load (Gasoline only) |
| PCM module primary load, glow plug control unit (Diesel only) | ||
| 37 | Mini – 15A | Engine secondary load (Gasoline only) |
| 38 | Mini – 15A | Lambda sensor (Gasoline only) |
| Mini – 7,5A | Urea (AdBlue) pump (Diesel only) | |
| 39 | Mini – 7,5A | Flow meters, tank leakage, canister, exhaust by-pass valve relay coil, and air shutter |
| 48 | – | – |
| 49 | Mini – 10A | Pedal brake switch – TCM module |
| 50 | Mini – 15A | +30 PCM module |
| 51 | Mini – 30A | Fuel pump relay input |
| 52 | Mini – 5A | Starter solenoid signal for PCM and voltage stabilizer |
| 53 | Mini – 10A | AWD module (AWD version only) |
Rear Power Distribution Center
- To access the center it is necessary to lift the ground coverage of the boot compartment and remove the access cover (refer to “Maintenance- Free Battery” in this section).
- To access the fuses release the cover latch shown in the picture.
- Press the release latch and lift the lid from this side.
- Push the lid toward the right side to release the indicated latches on the unit. To recognize the reference number of the fuses in the table below, see the diagram inside the cover just removed.
The table points out the position as featured in the cover, and the type and function of the fuses on the rear area distribution control unit.
2023 Maserati Quattroporte Review, Specs, Price, And Mileage (Brochure)
| Ref. | Type | Function |
| 2 | Maxi – 40A | BCM module |
| 3 | Maxi – 40A | BCM module |
| 4 | Maxi – 30A | BCM module |
| 5 | Maxi – 30A | BCM module |
| 6 | Maxi – 20A | Sunroof module |
| 7 | Maxi – 30A | Driver door module |
| 8 | Maxi – 30A | Passenger door module |
| 9 | Maxi – 40A | Start&Stop: voltage sta- stabilizer, dashboard |
| 10 | Maxi – 40A | Start&Stop: voltage stabilizer, body |
| 11 | Maxi – 40A | “High Premium” stereo amplifier unit |
| 11 | Maxi – 20A | “Premium” stereo amplifier unit (1) |
| 15 | Maxi – 40A | HVAC front blower relay coil |
| 16 | Maxi – 40A | Rear window defrost relay coil (HVAC module) |
| 17 | Maxi – 30A | Rear LH door module |
| 18 | Maxi – 30A | Rear RH door module |
| 19 | – | – |
| 20 | Maxi – 20A | “Premium” stereo amplifier unit (2) |
| 21 | Maxi – 40A | Urea (AdBlue) heater control unit (Diesel only) |
| 22 | Mini – 7,5A | Rear HVAC module |
| 23 | Mini – 10A | Fuel door relay and RF Hub module |
| 24 | Mini – 10A | ITM module, ceiling light unit (front and rear), rain/lights sensor |
| 25 | Mini – 20A | Inverter |
| 26 | Mini – 20A | Motor sound system (Diesel only) |
| 27 | Mini – 20A | LH rear seat movement |
| 31 | Mini – 25A | LH front seat movement |
| 32 | – | – |
| 33 | Mini – 20A | RH rear seat movement |
| 34 | Mini – 20A | Soft Door Close latch |
| 35 | Mini – 20A | Rear doors sunshade |
| 36 | Mini – 10A | Transmission lever, TPMS module, Navtrak, USB/AUX and charger, ASBM control suspension, and Hands-Free access module |
| 37 | Mini – 25A | Power liftgate/boot lid module |
| 38 | Mini – 25A | RH front seat movement |
| 40 | Maxi – 20A | Boot power outlet |
| 41 | – | – |
| 42 | – | – |
| 43 | Mini – 20A | Seat passenger heater module |
| 44 | – | – |
| 45 | – | – |
| 46 | Mini – 5A | Rear camera |
| 47 | Mini – 5A | Navtrak |
| 48 | Mini – 5A | Surround-view |
| 49 | Mini – 10A | Internal temperature sensor, humidity sensor, internal mirror, and HALF |
| 50 | – | – |
| 51 | Mini – 25A | Rear seat and steering wheel heater module |
| 52 | – | – |
| 53 | Mini – 25A | Rear seat ven- ted module |
| 54 | Mini – 7,5A | Blind Spot module |
| 55 | – | – |
| 56 | Mini – 7,5A | Blower front HVAC coil relay |
| 57 | Mini – 7,5A | Blower rear HVAC coil relay |
| 58 | – | – |
| 59 | Mini – 10A | SDC module, transmission lever, ASBM, rear tunnel stack switch |
| 60 | Mini – 10A | SDC module |
| 61 | Mini – 25A | Front console power outlet and cigar lighter |
| 62 | Mini – 7,5A | Front HVAC module |
| 63 | Mini – 20A | Blower rear HVAC |
| 64 | Mini – 10A | Wi-fi, rear HVAC module |
| 65 | Mini – 10A | Intelligent battery sensor |
| 66 | Mini – 10A | Wi-fi, RSE |
| 67 | Mini – 7,5A | USB charge outlet, sunroof |
| 68 | Mini – 20A | Power outlet on central console rear side |
| 69 | Mini – 25A | Rear console power outlet and cigar lighter |
| 70 | Mini – 10A | Front HVAC module, Parking Aid Module (PAM), ASCM |
| Front HVAC module, Parking Aid Module (PAM), ASCM, and ELDOR coil (V8 – Gasoline only) |
Fuse Box under the Dashboard
This box is located in an internal area that can be accessed only by removing the glove compartment on the dashboard’s left side. Considering the complexity of this operation, we recommend having the fuses replaced by the Service Network.
The table points out the position as featured in the figure, the type, and the function of the fuses in the box under the dashboard.
| Ref. | Type | Function |
| 1 | Mini – 7,5A | Cluster module, USB charger, CSS, SGW, and DSRC (Ja-pan version only) |
| 2 | Mini – 15A | Cluster module, clock |
| 3 | Mini – 10A | DSRC and DTV system (Japan version only) |
| 4 | Mini – 5A | E-call |
| 5 | Mini – 7,5A | Security Gateway |
| 6 | Mini – 25A | Radio |
| 7 | Mini – 10A | Column software module, CSS, USB auxiliary port |
| 8 | Mini – 10A | Start & Stop switch, dia- gnostic outlet |
FAQs
Fuses in the 2020 Maserati Quattroporte serve to protect various electrical components by breaking the circuit if there is a surge or overload.
The fuse box is typically located in the engine compartment or interior cabin, and the owner’s manual will provide specific details.
Check for a visibly melted or broken wire inside the fuse. Some fuses also have a small window that changes color when the fuse is blown.
Usually, a fuse puller or a pair of needle-nose pliers is sufficient for removing and replacing fuses.
Yes, a blown fuse can affect various electrical components depending on which circuit it protects.
The fuse box covers a chart that indicates the amperage ratings for each fuse.
Some vehicles come with spare fuses, but it’s advisable to check the owner’s manual to confirm and purchase additional fuses if needed.
No, it is not recommended to use a fuse with a higher amperage rating, as it may lead to damage or fire. Always use the specified amperage fuse.
Overloaded circuits, short circuits, or faulty electrical components can cause fuses to blow.
It’s a good safety practice to disconnect the battery before working on the electrical system to avoid the risk of electric shock.
Yes, various automotive forums and Maserati enthusiast communities often share troubleshooting tips for fuse-related problems.
Yes, repeated fuse failures may suggest an underlying issue and a professional diagnosis may be required.
Avoid overloading electrical circuits, ensure proper installation of aftermarket accessories, and address any electrical issues promptly.
Check with Maserati or relevant authorities for any recalls or known issues related to fuses in your specific model year.
Useful Link:
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