Find a fuse

Ford Focus · 2021

2021 Ford Focus Radio Fuse

Radio or head unit completely dead? Check this fuse first.

  • UK specification
  • Verified data
  • Checked 14 October 2026
  • Sources

Quick answer

Verified

Applies toFocus (2018) · Built from 27 April 2020Focus (2018) · Built 2 November 2020 to 14 March 2021Focus (2018) · Built 15 March 2021 to 28 November 2021Focus Vignale (2018) · Built from 27 April 2020Focus Vignale (2018) · Built 2 November 2020 to 14 March 2021Focus Vignale (2018) · Built 15 March 2021 to 28 November 2021

Voice control. Audio unit.

Fuse
17
Amperage
15A
Fuse box
Passenger compartment
Location
Below the glove compartment

Audio unit.

Fuse
23
Amperage
20A
Fuse box
Passenger compartment
Location
Below the glove compartment

Where is the fuse box?

Passenger compartment fuse box

Below the glove compartment

  1. Fold back the carpet under the glove compartment.
  2. Carefully remove the cover.

Fuse box diagram

Full 2021 Ford Focus fuse chart

We haven’t drawn a schematic of the passenger compartment fuse box for this version yet. Use the fuse and relay numbers on this page and the legend on the fuse box to find the right position.

Where to look

  • 17

    Below the glove compartment

    Fuse ·15A · Voice control. Audio unit.

    Position not shown on the schematic. Find fuse 17 on the fuse box legend.

  • 23

    Below the glove compartment

    Fuse ·20A · Audio unit.

    Position not shown on the schematic. Find fuse 23 on the fuse box legend.

Always confirm the number against the legend on the fuse box cover before pulling anything.

How to replace the fuse safely

  1. Switch off the ignition and all electrical equipment. Take the key out, or move a keyless fob away from the car.
  2. Open the fuse box and find the fuse using the number on the cover legend or the chart on this page.
  3. Pull the fuse straight out with the plastic fuse puller (usually clipped inside the fuse box) or fine-nose pliers.
  4. Look at the metal strip inside the fuse. A broken or burnt strip means it has blown.
  5. Fit a new fuse with exactly the same amperage rating. The number on top and the colour should match.
  6. Refit the cover, switch on and test the component.
  • Never fit a fuse with a higher amperage rating than specified. It can let wiring overheat.
  • Never bridge a fuse with wire, foil or anything else.

Fuse keeps blowing?

A fuse that blows again straight away is doing its job. Something on that circuit is drawing too much current. Common causes are damaged wiring shorting to the bodywork, a failing motor or socket, water getting in, or a faulty accessory. Fitting fuse after fuse, or a bigger fuse, won’t fix the fault and can overheat the wiring. Have the circuit tested by an auto electrician.

Not the fuse? Check these next.

  • Radio security code

    After the battery has been disconnected, some radios show "CODE" or "LOCKED" and need a security code to work again.

  • Power-saving mode

    Some cars switch the radio off after a set time with the engine off to protect the battery.

  • Connector behind the unit

    If the radio has been removed or replaced, check the plug at the back is fully seated.

Sources & verification

Applies toFocus (2018) · Built from 27 April 2020

Status
Verified
Specification
UK market
Last checked
14 October 2026

Applies toFocus (2018) · Built 2 November 2020 to 14 March 2021

Status
Verified
Specification
UK market
Last checked
14 October 2026
  • Manufacturer manual listingFord UK — 2021 Focus (2018) owner manuals · Ford Motor Company · Owner’s Manual (Vehicles Built From: 02/11/2020 Vehicles Built Up To: 14/03/2021) · Accessed 14 October 2026
  • Owner’s manualFord Focus (2018) Owner’s Manual — CG3784en, edition 08/2020 · Ford Motor Company · Fuse specification chart — Engine compartment fuse box (pp. 403–406); Fuse specification chart — Passenger compartment fuse box (pp. 406–408); Fuse specification chart — Trailer tow module fuse box (5-door and wagon) (pp. 408–408) · Accessed 14 October 2026

Applies toFocus (2018) · Built 15 March 2021 to 28 November 2021

Status
Verified
Specification
UK market
Last checked
14 October 2026
  • Manufacturer manual listingFord UK — 2021 Focus (2018) owner manuals · Ford Motor Company · Owner’s Manual (Vehicles Built From: 15/03/2021 Vehicles Built Up To: 28/11/2021) · Accessed 14 October 2026
  • Owner’s manualFord Focus (2018) Owner’s Manual — CG3784en, edition 12/2020 · Ford Motor Company · Fuse specification chart — Engine compartment fuse box (pp. 397–400); Fuse specification chart — Passenger compartment fuse box (pp. 400–402); Fuse specification chart — Trailer tow module fuse box (5-door and wagon) (pp. 402–402) · Accessed 14 October 2026

Applies toFocus Vignale (2018) · Built from 27 April 2020

Status
Verified
Specification
UK market
Last checked
14 October 2026

Applies toFocus Vignale (2018) · Built 2 November 2020 to 14 March 2021

Status
Verified
Specification
UK market
Last checked
14 October 2026

Applies toFocus Vignale (2018) · Built 15 March 2021 to 28 November 2021

Status
Verified
Specification
UK market
Last checked
14 October 2026

Fuse layouts can differ between trim levels and optional equipment. Always confirm against the legend on your fuse box.