2022-2023 Seat Leon Fuses and Fuse Box Guidelines
The popular little car in the Seat range, the 2022–2023 Leon, has a fuse box and fuses installed, which are an essential electrical component that help to ensure the vehicle’s safety and performance. This introduction will cover the function, significance, and role of fuses and the fuse box in the Seat Leon in protecting the electrical systems of the car. Fuses are basic but essential parts that guard against potential harm from electrical overloads and short circuits to a car’s electrical systems. These fuses are kept in the fuse box, which is often found inside the automobile or in the engine compartment. It acts as a central hub for the vehicle’s electrical distribution. Fuse protection is primarily intended to interrupt an electrical circuit when it is experiencing high current flow, thus averting potential harm to the car’s wiring or componentry. Fuse protection involves cutting off the electricity supply during a malfunction, safeguarding important systems like air conditioning, power windows, lighting, and airbags, as well as the engine control unit in the car. Electrical problems could pose a risk to public safety or need expensive repairs in the absence of these safety devices.
The fuse box is an essential component of the 2022–2023 Seat Leon’s electrical architecture, guaranteeing that power is dispersed throughout the vehicle in a reliable and safe manner. Modern cars like the Seat Leon have more complicated electrical systems because to ongoing technological advancements, which emphasizes the importance of fuses and fuse boxes.We will go more deeply into the fuses and fuse box of the 2022–2023 Seat Leon in this series of articles. We’ll look at where they are located in the car, the different circuits they shield, and why it’s critical to know how to recognize, change, or troubleshoot fuses as necessary. Whether you own a Seat Leon or are just interested in automobile technology, you will gain valuable knowledge about your vehicle’s electrical safety and functionality from this material. So let’s set out on this adventure to explore the 2022–2023 Seat Leon’s hidden world of fuses and fuse boxes and learn how these seemingly little parts are actually very important to the smooth and safe operation of this amazing vehicle.
Fuses and bulbs
Fuses
In general, a fuse can be assigned to various electrical components. Likewise, an electrical component can be protected by several fuses.
Only replace fuses when the cause of the problem has been solved. If a newly inserted fuse blows after a short time, you must have the electrical system checked by a special-ised workshop as soon as possible.
WARNING
The high voltages in the electrical system can give serious electrical shocks, causing burns and even death
- Never touch the electrical wiring of the ignition system.
- Take care not to cause short circuits in the electrical system.
WARNING
Using unsuitable fuses, repairing fuses or bridging a current circuit without fuses can cause a fire and serious injury.
- Never use a fuse with a higher value. Only replace fuses with a fuse of the same am- perage (same colour and markings) and size.
- Never replace a fuse by a metal strip, staple or similar.
CAUTION
- To prevent damage to the vehicle’s electrical system, before replacing a fuse al-ways turn off the ignition, the lights and all electrical elements.
- Protect the fuse boxes when open to pre-vent the entry of dust or humidity as they can damage the electrical system.
NOTE
- One component may have more than one fuse.
- Several components may run on a single fuse.
- In the vehicle, there are more fuses than those indicated in this chapter.
Fuses inside the vehicle
Opening and closing the fuse box situated below the dash panel
- Open: fold the cover down.
- Close: push back the cover it in until it clicks into place.
Identifying fuses below the dashboard by colours
| Colour | Amp rating |
| Light brown | 5 |
| Brown | 7.5 |
| Red | 10 |
| Blue | 15 |
| Yellow | 20 |
| Colour | Amp rating |
| White or transparent | 25 |
| Green | 30 |
| Orange | 40 |
CAUTION
- Always carefully remove the fuse box covers and refit them correctly to avoid problems with your vehicle.
- Protect the fuse boxes when open to avoid the entry of dust or humidity. Dirt and humidity inside fuse boxes can cause dam-age to the electrical system.
Fuses in the engine compartment
To open the engine compartment fuse box
- Open the bonnet.
- Press the locking tabs to release the fuse box cover.
- Then lift the cover out.
- To fit the cover, place it on the fuse box. Push the locking tabs down until they click audibly into place.
Replace a blown fuse
Preparations
- Switch off the ignition, lights and all electrical equipment.
- Open the corresponding fuse box.
Recognise a blown fuse
A fuse is blown if its metal strip is ruptured.
- Point a lamp at the fuse to see if it has blown.
To replace a fuse
- Remove the fuse.
- Replace the blown fuse by one with an identical amperage rating (same colour and markings) and identical size.
- Replace the cover again or close the fuse box lid.
Fuse placement
Fuses in the vehicle interior
| No. | Consumers/Amps | |
| 3 | Trailer | 25 |
| 4 | SCR, Adblue | 20 |
| 5 | Automatic gearbox lever | 25 |
| 6 | Interior light | 30 |
| 8 | Sunroof | 20 |
| 7 | Heated seats | 30 |
| 9 | Left door | 30 |
| 11 | Trailer | 15 |
| No. | Consumers/Amps | |
| 12 | Right lights | 40 |
| 13 | Central locking | 40 |
| 14 | External Ethernet Amplifier | 30 |
| 16 | Airbag | 7.5 |
| 17 | SCR, engine relay, 1.5 | 10 |
| 18 | KESSY | 7.5 |
| 19 | Instrument panel | 7.5 |
| 20 | Connectivity Box | 7.5 |
| 21 | Rear camera | 7.5 |
| 24 | 4×4 Haldex Control Unit | 15 |
| 25 | RGS+EBSS front seat belts | 25 |
| 26 | Right door | 30 |
| 27 | RGS+EBSS front seat belts | 25 |
|
28 |
PHEV. Switching off the high voltage system for rescue tasks. Identified by a yellow label. |
10 |
| 29 | Trailer | 15 |
| 30 | Radio | 30 |
| 31 | Trailer | 25 |
| 34 | 230V socket | 30 |
| 35 | Left lights | 40 |
| 36 | Air conditioner fan | 40 |
| No. | Consumers/Amps | |
| 37 | Electric rear lid | 30 |
| 39 | Heated steering wheel | 10 |
| 40 | Alarm horn | 7.5 |
| 41 | Gateway | 7.5 |
| 42 | Automatic gearbox lever | 7.5 |
|
43 |
Air conditioning and heating con- trol panel, rear window heating, AA compressor |
10 |
|
44 |
Diagnosis, handbrake switch, light switch, reverse light, interior light- ing, lit-up door sill |
7.5 |
| 45 | Steering column | 7.5 |
| 46 | Radio display | 7.5 |
| 47 | Driving mode. | 10 |
| 48 | USB | 7.5 |
| 52 | 12V socket | 20 |
| 58 | Parking sensors, parking assist control unit, front camera, radar | 7.5 |
| 59 | Reverse switch, clima sensor, elec- trochromic mirror | 7.5 |
| 60 | Diagnosis, headlight control unit, headlight adjuster | 7.5 |
| 61 | Starter motor; clutch sensor | 7.5 |
| 65 | Sound amplifier | 10 |
| No. | Consumers/Amps | |
| 66 | Rear window wiper | 15 |
| 67 | Heated rear window | 30 |
| In-line fuse/Amps | |
| 230 V rear power sockets | 30 |
| Electric driver’s seat | 15 |
Fuse arrangement in engine compartment
| No. | Consumers/Amps | |
| 2 | Engine control unit | 7.5 |
| 3 | Fuel pump control unit | 7.5/10/20 |
| 4 | Left headlight KL 30 Signal | 15 |
| 5 | Right headlight KL 30 Signal | 15 |
| 7 | Automatic gearbox pump | 30 |
| 8 | KL 30 Signal brake servo | 40 |
| 9 | Horn | 15 |
| 10 | Front windscreen washer | 30 |
| 11 | PHEV Climate | 7.5 |
| 12 | Automatic gearbox control unit | 15/30 |
| 13 | ESP control unit | 25 |
| 14 | Standheizung | 20 |
| 15 | ESP control unit | 40 |
| No. | Consumers/Amps | |
| 16 | PHEV, Automatic gearbox unit | 50 |
| 17 | PTC | 40 |
| 18 | PTC | 40 |
| 20 | Front electronic differential | 15 |
| 21 | Engine control unit | 7.5 |
| 22 | Starter motor | 30 |
| 23 | Engine control unit (diesel/pet- rol) | 15 |
| 24 | Engine sensors | 7.5/10 |
| 25 | Engine sensors | 7.5/10 |
| 26 | Engine power supply | 7.5/10/15 |
| 27 | Lambda probe | 10/15 |
| 28 | Engine | 10/20 |
| 29 | Fuel pump control unit | 15/20/30 |
| 30 | Pressure pump 1.0 | 10 |
| 33 | PTC | 40 |
NOTE
- In the vehicle, there are more fuses than those indicated in this chapter. These should only be changed by a specialised workshop.
- Positions not containing a fuse do not ap-pear in the following tables.
- Some of the equipment listed in the tables below pertain only to certain versions of the model or are optional extras.
- Please note that the above lists, while correct at the time of printing, are subject to change.
Bulbs
Changing bulbs
Full-LED headlights
Full-LED headlights handle all light functions (daylight, side light, turn signal, dipped beam and route light) with light emitting diodes
(LEDs) as a light source. Full-LED headlights are designed to last the lifetime of the car and light bulbs cannot be replaced. In case of headlight failure, go to an authorised workshop to have it replaced.
Fog lights, rear lights, license plate light, side turn signals and additional brake light
Taking into account that they use LED bulbs, they should be replaced at a technical serv-ice centre.
Operation
FAQs
A fuse is a safety device that is intended to stop the flow of electrical current in the event of an overcurrent or short circuit, protecting the vehicle’s electrical system.
Depending on the make and model of the car, the fuse box’s position may change. For exact location information, refer to your owner’s handbook.
Generally, a panel or cover must be opened in order to gain access to the fuse box. For more instructions, see the owner’s manual on your device.
Examine the fuse visually for any broken filaments, or check continuity with a multimeter. There is frequently a wire gap in blown fuses.
Use a fuse with the same amperage rating to replace the blown one. Always use the appropriate amperage fuse to prevent damage or problems with electricity.
The maximum current that a fuse can handle before blowing is indicated by its amperage rating. Using the appropriate amperage is essential to safeguarding the circuit and averting harm or fires.
No, you shouldn’t ever change a fuse with one with a greater amperage rating because doing so could harm the electrical system or even put you in danger of fire.
See your owner’s manual for a fuse box diagram, or search inside the fuse box cover for labels.
The fuse box diagram is typically available online or via the dealership. Having this reference is crucial for upkeep and safety.
It’s critical to use the appropriate kind of fuse for your car because different fuses come in different shapes and might not fit into the fuse box correctly.
Fuse blowing on a regular basis may be a sign of an underlying electrical issue, like a short circuit. It is advisable to have a specialist inspect the vehicle.
While changing a fuse while the engine is running is normally safe, it is advised to cut off the ignition to reduce the chance of electric shock.
Spare fuses for certain cars are kept in the fuse box. Though keeping extra fuses on hand is a good idea, don’t forget to check for spares.
It is advisable to get advice from a certified mechanic or repair center if you are unable to identify or resolve an electrical issue with your car.
Unauthorized changes made to the wiring or fuse box might jeopardize safety and ruin your car’s warranty. If you are doing any electrical modifications, always get professional advice.
Useful Link
View Full PDF: 2022-2023 Seat Leon
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