2023 Maserati MC20 Fuses and Fuse Box User Guide

2023 Maserati MC20 Fuses and Fuse Box User Manual

A complex fuse box system is a characteristic of the 2023 Maserati MC20 that is essential to the proper operation of the car’s electrical systems. The fuse boxes, which are beneath the centre trap, contain the necessary fuses for safeguarding the car’s numerous circuits. For the purposes of maintenance and troubleshooting, it is essential to comprehend the arrangement and placement of these fuses. In order to preserve the vehicle’s functionality and safety standards, it is crucial to adhere to the instructions in the handbook. The handbook also stresses how important it is to maintain your automobile properly if you want to protect the environment and keep its worth over time. It is advised to speak with an Authorised Maserati Dealer for any fuse-related problems or maintenance requirements to guarantee dependable and effective servicing.

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If a Fuse Blows

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 an Authorized Maserati Dealer.

Replace the faulty fuse with a new one featuring the same rating, by using appropriate forceps.

The color identifies the value of the fuses in amperes which is also reported on them.

The table shows the match between the colour 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 fuse and relay boxes, in the front luggage compartment, under a central cover;

• on the body computer, behind the passenger’s footrest, under the dashboard;

• inside the fuse and relay boxes located in a covered area, behind the left cover of the engine compartment (for MC20) and inside the fuse and relay boxes located under the central trap door in the engine compartment (for MC20 Cielo).

Fuse Boxes under the Front Luggage Compartment

• To access the box it is necessary to lift the front hood (see “Access the Luggage Compartments” in the section “Before Driving”).
• Remove the cargo net and the floor mat.
• To access the fuses, remove the cover in the luggage compartment, then 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 on the cover, and the type and function of the fuses included in the box.

CAUTION!

• After replacement, refit the protective cover of the module.
• If you need to wash the engine compartment (not valid for MC20 Cielo), do not direct the water for too long directly on the module.

Ref.	Type	Function
F01	Maxi – 50A	Main Roof
F02	Maxi – 20A	ECU Chassis Domain Control input
F03	Maxi – 30A	Hi-Fi 2 relay input
F06	Maxi – 30A	ETM R1 relay input

Ref.	Type	Function
F07	Maxi – 40A	HVAC front blower relay coil
F08	Maxi – 30A	Hi-Fi 1 relay input
F09	Mini – 20A	RH seat move- ment
F10	Mini – 15A	Horn input
F14	Mini – 7,5A	External Mirror input
F17	Mini – 5A	Wireless charger
F18	Mini – 10A	LH seat move- ment
F19	Mini – 7,5A	ECU Chassis Domain Control input
F20	Mini – 20A	Power Outlet Trunk input
F21	Mini – 10A	DNA/Hub usb ports
F23	Mini – 25A	LH seat move- ment + Heated seats
F82	Maxi – 20A	BCM key relays
F83	Maxi – 20A	Wiper
F84	Mini – 7,5A	ECU Lifter input

Ref.	Type	Function
T07	Maxi – 50A	HVAC front blower relay coil
T09	Micro – 30A	Wireless charger input

Next fuses boxes are located in the front luggage compartment, but are not accessible by the user.

Ref.	Type	Function
F1	Micro – 20A	Direct battery positive Central ECU (MC20 Cielo only)
F2	Micro – 20A	Direct battery positive Central ECU (MC20 Cielo only)

Ref.	Type	Function
F3	Micro – 20A	Direct battery positive Ton- near (RH) (M- C20 Cielo only)
F4	Micro – 20A	Direct battery positive Ton- near (LH) (M- C20 Cielo only)
F5	Micro – 20A	Direct battery positive Main- Roof (LH) (M- C20 Cielo only)
F6	Micro – 20A	Direct battery positive Main- Roof (RH) (M- C20 Cielo only)
R1	Micro – 30A	Horn relay input
R3	Micro – 30A	ECU Chassis Domain Control input

Ref.	Type	Function
F01	MIDI – 125A	FDU input
F02	MIDI – 80A	EPS
F03	MIDI – 100A	Enable cooling fan relay input
F04	MIDI – 70A	IBS – MKC1
F05	MIDI – 40A	IBS – Valves
F06	MIDI – 50A	Lifter input

Ref.	Type	Function
P035	Mini – 5A	Battery charge status sensor
C038	Maxi – 50A	Lifter pump relay
P059	Maxi – 2A	Clockspring input

Fuses on the Body Computer

• To access the centre it is necessary to unscrew the passenger’s footrest, under the dashboard.

The table points out the position, the type and function of the fuses on the body computer.

Ref.	Type	Function
F33	Mini – 25A	Front Driver Window Lifter
F34	Mini – 25A	Front Passenger Window Lifter

Ref.	Type	Function
F36	Mini – 15A	HVAC, ASU, HFSU, EPB switch, RFHM, KNOB, plafoniera, TBM, EOBD, EMC, SGW and DCSD module
F37	Mini – 10A	IPC module
F38	Mini – 20A	Lock/Unlock Fuel Lid and Latch-Liftgate
F42	Mini – 7,5A	BSM, EPS and CDCM module
F43	Mini – 20A	Output from relay Washer pump
F49	Mini – 7,5A	PAM, Blindspot, Internal mirror and lifter
F50	Mini – 7,5A	ORC
F51	Mini – 7,5A	AC Compressor, HVAC, Air quality sensor, T09 internal re-lay FDU, Humidity sensor, RVDM

Ref.	Type	Function
F53	Mini – 7,5A	Clockspring, start button and IPC

Fuse Boxes in the Engine Compartment
These boxes are located in an internal area that can be accessed only by removing the left engine compartment cover (for MC20 only). Considering the complexity of this operation, we recommend having the fuses replaced by an Authorized Maserati Dealer.

For MC20 Cielo, the boxes are located under the central trap door in the engine compartment; remove the module cover unhooking the lateral locks as shown in the picture.

The table points out the position as featured in the figure, and the type and function of the fuses in the box.

MC20

MC20 Cielo

Ref.	Type	Function
F03	Maxi – 20A	Direct starter control
F04	Maxi – 20A	A/C Fans
F07	Maxi – 50A	Main Relay
F14	Mini – 15A	Direct battery positive TCM

Ref.	Type	Function
F16	Mini – 5A	Ignition switch output ECM- TCM
F18	Mini – 10A	E-LATCH Driver
F19	Mini – 10A	E-LATCH Passenger
F22	Mini – 10A	A/C Compres- sor
F24	Mini – 20A	Primary loads NCM Master
F82	Maxi – 30A	Fuel pump 2
F83	Maxi – 30A	Fuel pump 1
F84	Mini – 7,5A	Direct battery-positive ECM
F87	Mini – 25A	ECM module
F89	Maxi – 20A	Electrical water pump
F90	Mini – 5A	ELDOR battery
FXX	Mini – 20A	Secondary Loads
T07	Maxi – 50A	Main Relay
T09	Micro – 30A	A/C Compres- sor
T17	Micro – 30A	Electrical water pump

MC20 Cielo

Ref.	Type	Function
R1	Mini – 30A	Pump 2 Realy
R2	Mini – 30A	BCM relay
F01	Mini – 15A	Engine sec- ondary loads

Ref.	Type	Function
R1	Mini – 30A	Pump 1 Realy
R2	Mini – 30A	Starter relay

Ref.	Type	Function
F01	Mini – 20A	Engine primary loads NCM slave

Ref.	Type	Function
C038 D	Mini – 30A	Engine A/C fans

How to Replace Fuse of the 2023 Maserati MC20 

1. Find the fuse:
   • Once you’ve found the fuse box, open it up and look inside the cover for the picture or chart.
2. Figure out which fuse is blown:
   • You can look at the fuses or use a voltmeter to make sure they are connected. A broken wire will be inside a fuse that has blown. Before you replace the fuse, make sure that the part that the fuse is connected to is turned off.
3. Take out the blown fuse.
   • Carefully pull the fuse out of its hole with a fuse puller tool or a pair of needle-nose pliers. Be careful not to damage the switch box or the parts around it.
4. Insert the New Fuse:
   • Carefully put a new fuse with the same value (amperage) into the slot that the blown fuse used to be in. Make sure it fits well.
5. Close the Fuse Box:
   • After replacing the fuse, make sure the fuse box is firmly closed.
6. Test the Component:
   • Make sure the part that came with the new switch is working properly by turning it on, like the lights or radio.
7. Double-Check:
   • It’s important to make sure everything is working right after replacing the fuse and trying the part.

FAQs

Useful links

View Full PDF: Maserati MC20 2023 User Manual|Auto User Guide

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