Location of fuses in Škoda Fabia: diagram, photo and purpose

Owners Škoda Fabia Sooner or later, you are faced with the need to replace a blown fuse - be it due to non-functioning headlights, a failed cigarette lighter, or problems with the electronics. However, finding the right element in a block is not always easy: the manufacturer places them in different places depending on the model generation, and the diagrams in the manual are often not detailed enough.

In this article we will look at where exactly the fuse boxes are located in Fabia **1st (1999–2007)**, **2nd (2007–2014)** and **3rd (2014–present)** generations, we will provide current diagrams with decoding of each relay and give practical advice on diagnostics and replacement. We will pay special attention to the “pitfalls”: for example, why in some modifications the cigarette lighter fuse can be duplicated in two blocks at the same time, or how not to confuse the fan relay with the rear window heating relay.

Where are the fuse boxes in the Škoda Fabia

B Fabia fuses and relays are distributed over **three main blocks**, the location of which depends on the generation of the car. The general rule is: the newer the model, the more compact and less accessible the units are for the owner. For example, in the first generation (Fabia I, 1999–2007) the main unit is located under the hood and can be easily removed, and in the third (Fabia III, since 2014) to access it you will have to dismantle part of the plastic lining of the interior.

Let's take a closer look at the locations:

• 🔧 Main fuse and relay box: in Fabia I — under the hood, to the left of the battery; in Fabia II/III — in the cabin, behind the glove box (glove compartment).
• 🚗 Cabin unit (optional): under the instrument panel, driver's side (only for Fabia II since 2010 and Fabia III).
• ⚡ Block under the hood (power): next to the battery, often covered with a plastic cover (relevant for all generations).

Important: in Fabia Combi (station wagon) and Fabia RS (sports version) the location of the blocks may vary slightly. For example, in RS The fuel pump fuse is placed in a separate block due to the modified injection system.

Fuse diagram for Škoda Fabia I (1999–2007)

In the first generation Fabia The fuse and relay box is located under the hood, to the left of the battery. The unit cover is secured with two latches and can be removed without tools. Inside you will find **30 fuses** (F1–F30) and **12 relays** (K1–K12). A feature of this generation is the presence of redundant fuses for critical circuits (for example, F10 and F15 are responsible for lighting, but for different zones).

Below is a table with the assignment of key fuses. The complete diagram can be found in the instruction manual or on the inside of the unit cover (if it has not been worn out over time).

Number	Ampere	Purpose	Note
F4	10A	Cigarette lighter, 12V socket	Often burns out when using powerful devices (vacuum cleaner, compressor)
F10	10A	Right headlight (low beam)	If it burns out frequently, check the lamp for leaks
F15	10A	Left headlight (low beam)	—
F20	15A	Heated rear window	Triggers when heating filaments are damaged
F25	20A	Heater fan	If burnt out, check the resistance of the fan motor

Attention: in Fabia I with a diesel engine (1.9 TDI), fuse F28 (15A) is responsible for the glow plugs. Its burnout can simulate a fuel system malfunction!

The relays in this block are marked with letters K1–K12. For example:

• K1 — cooling fan relay;
• K4 — fuel pump relay;
• K7 — rear window heating relay.

Location of fuses in Škoda Fabia II (2007–2014)

In the second generation Fabia the manufacturer moved the main fuse box to the interior - behind the glove box (glove compartment). To gain access you must:

1. Open the glove compartment and remove its contents.
2. Press down on the sides of the drawer to release the latches.
3. Lower the glove compartment down - behind it you will see a gray plastic block cover.

This block contains **40 fuses** (SB1–SB40) and **20 relays** (J1–J20). Feature Fabia II: appeared here additional unit in the cabin (under the instrument panel, on the driver's side), where the fuses for the multimedia system and climate control are located.

The most “problematic” fuses in this generation:

• 🔥 SB5 (10A) - cigarette lighter and USB ports. Burns out when connecting non-standard gadgets;
• 💡 SB15 (10A) - left headlight (low beam). Often fails when installing LED lamps;
• 🚪 SB30 (20A) - central locking. If it burns out, check the door limit switches.

How to check the relay in Fabia II?

To test the relay, use a multimeter in the "test" mode. Connect the probes to pins 85 and 86 (relay coil) - there should be a resistance of 50-120 Ohms. If there is no resistance, the relay is faulty. To check contacts 30 and 87, apply 12V voltage to the coil: a click should be heard and the contacts should close.

Fuse diagram for Škoda Fabia III (2014–present)

In the third generation Fabia (including facelift 2018) the fuse box has moved again - it is now located behind left center console trim (driver's side). To get to it:

1. Open the driver's door.
2. Use a screwdriver or plastic spatula to pry up the decorative trim under the steering wheel (next to the clutch pedal).
3. Unscrew two screws Torx T20holding the cladding.
4. Remove the panel - behind it you will see a black block with fuses and relays.

B Fabia III The block is divided into two parts:

• Upper — fuses (SA1–SA40);
• Lower - relay (J1–J25).

Key changes compared to previous generations:

• 🔌 Cigarette lighter fuse (SA5, 20A) is now also responsible for wireless charging (if installed);
• 📱 Multimedia system fuse (SA10, 15A) also protects the rear view camera;
• 🚗 fuse SA20 (10A) is responsible for parking sensors (if installed).

Attention: in Fabia III with engines 1.0 TSI and 1.5 TSI fuel pump fuse (SA30, 15A) is located in a separate block under the hood! Its burnout may make it impossible to start the engine.

How to check and replace a fuse

Diagnosis of fuses in Škoda Fabia does not require special skills, but there are nuances that will help you avoid mistakes. Here are the step-by-step instructions:

1. Turn off the ignition and remove the key from the lock. In some circuits (for example, audio systems), the voltage is maintained even when the ignition is turned off.
2. Find the faulty circuit. Focus on the symptoms: for example, if the cigarette lighter does not work, look for a fuse marked 12V Socket or Cigarette Lighter.
3. Visual inspection. Remove the fuse with tweezers (usually included with the unit) and check the filament. If it is broken, the fuse has blown.
4. Checking with a multimeter. Switch the device to the “dialer” mode and touch the fuse contacts with the probes. A beep means the circuit is working properly.
5. Replacement. Install a new fuse same denomination. Using a high ampere fuse may result in a wiring fire!

If the new fuse blows immediately, this indicates short circuit in the chain. In this case it is necessary:

• 🔍 Check the wiring for exposed wires or melted insulation;
• 💡 Disconnect all consumers in this circuit (for example, if the headlight fuse blows, remove the lamps and check them separately);
• 🛠️ Contact an auto electrician if the cause is not obvious.

⚠️ Attention: B Fabia II/III with the system Start-Stop fuse SA35 (15A) is responsible for the operation of the starter. Replacing it without disconnecting the battery can lead to system failure!

Common problems and solutions

Some faults in Škoda Fabia are associated with fuses so often that they can be separated into a separate list. Here are the most typical cases:

Symptom	Possible fuse	Reason	Solution
Cigarette lighter doesn't work	F4 (Fabia I), SB5 (Fabia II), SA5 (Fabia III)	Connecting a powerful device (vacuum cleaner, compressor)	Replace the fuse. Use a power strip with protection
Both low beam headlights do not light up	F10/F15 (Fabia I), SB15/SB16 (Fabia II), SA15/SA16 (Fabia III)	Both lamps are burnt out or there is a short circuit in the circuit	Check the bulbs, then the fuses. If it repeats, look for short circuit
Heater fan does not work	F25 (Fabia I), SB25 (Fabia II), SA25 (Fabia III)	Worn motor brushes or jammed blades	Replace fuse, check fan motor
Windows don't open	F28 (Fabia I), SB30 (Fabia II), SA30 (Fabia III)	Overloading window motors	Lubricate the glass guides, replace the fuse

The problem with multimedia system fuse (SA10 in Fabia III). If it burns out, the screen Swing or Bolero may get stuck on the logo Škoda. In this case:

1. Disconnect the battery for 10 minutes;
2. Replace the fuse;
3. Update the head unit firmware via USB (instructions in the manual).

FAQ: Frequently asked questions about Škoda Fabia fuses

Where is the cigarette lighter fuse located in a 2010 Fabia?

B Fabia II (2007–2014) cigarette lighter fuse is SB5 (10A) in the main unit behind the glove compartment. If after replacement it burns out again, check the socket for oxidation of the contacts or connect the device through a protected splitter.

Why does the headlight bulb burn out in a Fabia III after replacing the headlight fuse?

B Fabia III when installing LED lamps (LED) in standard halogen headlights fuses SA15/SA16 (10A) may not withstand inrush currents. Solution: Return halogen bulbs or install CAN-bus adapters for LEDs.

Which fuse controls the alarm in Fabia?

B Fabia I/II The fuse is responsible for the alarm F28 (15A) or SB30 (10A) respectively. B Fabia III this is SA30 (10A). If the alarm goes off randomly, check the door limit switches and the hood.

Is it possible to replace the relay in a Fabia yourself?

Yes, the relay is in Fabia can be replaced without special tools. The main thing is to choose a similar label (for example, J1 on J1). Original relays VW Group are marked 12V 30/40A (for fan) or 12V 10A (for low-power circuits).

What should I do if there is no diagram in the Fabia III fuse box?

The fuse diagram is usually printed on the inside of the block cover. If it is erased, download the instruction manual for your modification on the website Škoda Auto (section Owners → Manuals). An alternative is photographs of blocks on forums, for example, SkodaClub.