Find a fuse

Ford Focus · 2018

2018 Ford Focus Towbar Fuse

Trailer lights or the retractable tow bar not working? Find the fuses Ford lists for the trailer tow module.

  • UK specification
  • Verified data
  • Checked 14 October 2026
  • Sources
Which 2018 Focus do you have?

The towbar fuse differs between versions of the 2018 Ford Focus. Until you choose, every possible result is shown.

Not sure which Focus you have?
  • Ford UK lists the 2018 Focus under more than one model name: Focus (2015), Focus RS (2015), Focus Electric (2015), Focus (2018) and Focus Vignale (2018). Their fuse layouts differ.
  • Ford UK’s Owner Manuals page can find your car’s handbook from its VIN. The page it opens is titled with Ford’s model name, for example “Focus (2015)”.
  • Your printed owner’s handbook, or a franchised dealer with your VIN, can also confirm it.

If you can’t confirm it, keep both results in mind and check the fuse box legend before removing anything.

Quick answer

Verified

Option A Focus (2015) or Focus RS (2015)

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

Trailer tow module.

Fuse
F28
Amperage
40A
Fuse box
Luggage compartment
Location
In the luggage compartment

Retractable tow bar.

Fuse
F41
Amperage
5A
Fuse box
Luggage compartment
Location
In the luggage compartment

Quick answer

Verified

Option B Focus Electric (2015)

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

No fuse is listed for this in this version. Check the legend on your fuse box.

Quick answer

Verified

Option C Focus (2018) or Focus Vignale (2018)

  • UK specification
  • Verified data
  • Checked 14 October 2026
  • Sources
Fuse
91
Amperage
40A
Fuse box
Engine compartment
Location
In the engine compartment

Where is the fuse box?

Option A Focus (2015) or Focus RS (2015)

Luggage compartment fuse box

In the luggage compartment

Our source doesn’t describe how to open this fuse box. Check your owner’s handbook.

Option B Focus Electric (2015)

Option C Focus (2018) or Focus Vignale (2018)

Engine compartment fuse box

In the engine compartment

Our source doesn’t describe how to open this fuse box. Check your owner’s handbook.

Fuse box diagram

Full 2018 Ford Focus fuse chart

Option A Focus (2015) or Focus RS (2015)

We haven’t drawn a schematic of the luggage 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

  • F28

    In the luggage compartment

    Fuse ·40A · Trailer tow module.

    Position not shown on the schematic. Find fuse F28 on the fuse box legend.

  • F41

    In the luggage compartment

    Fuse ·5A · Retractable tow bar.

    Position not shown on the schematic. Find fuse F41 on the fuse box legend.

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

Option B Focus Electric (2015)

Option C Focus (2018) or Focus Vignale (2018)

We haven’t drawn a schematic of the engine 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

  • 91

    In the engine compartment

    Fuse ·40A · Trailer tow module.

    Position not shown on the schematic. Find fuse 91 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.

  • Socket and plug

    Corroded pins in the towbar socket or the trailer plug cause most trailer light faults. Clean and check them first.

  • Trailer earth

    Flickering or several lights failing together usually points to a poor earth on the trailer side.

  • Ford-fitted or aftermarket

    These fuses cover Ford’s own trailer tow module. An aftermarket towbar kit may have its own separate fuse.

Sources & verification

Focus (2015) · Built from 5 September 2016

Status
Verified
Specification
UK market
Last checked
14 October 2026

Focus RS (2015) · Built from 5 September 2016

Status
Verified
Specification
UK market
Last checked
14 October 2026

Focus Electric (2015) · Built from 16 January 2017

Status
Verified
Specification
UK market
Last checked
14 October 2026

Focus (2018) · Built up to 14 October 2018

Status
Verified
Specification
UK market
Last checked
14 October 2026

Focus (2018) · Built 15 October 2018 to 13 January 2019

Status
Verified
Specification
UK market
Last checked
14 October 2026

Focus Vignale (2018) · Built up to 14 October 2018

Status
Verified
Specification
UK market
Last checked
14 October 2026

Focus Vignale (2018) · Built 15 October 2018 to 13 January 2019

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.