Find a fuse

Ford Focus · 2025

2025 Ford Focus OBD Port Fuse

Code reader won’t power up? Check the fuse for the OBD diagnostic socket (Ford calls it the data link connector).

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

Quick answer

Verified

Data link connector.

Fuse
5
Amperage
10A
Fuse box
Under the bonnet
Location
Under the bonnet (engine compartment)

Steering wheel module. Instrument cluster. Data link connector.

Fuse
22
Amperage
7.5A
Fuse box
Passenger compartment
Location
Below the glove compartment

Where is the fuse box?

Under hood fuse box

Under the bonnet (engine compartment)

  1. Pull the latch toward you and remove the top cover.
  2. Pull the connector lever upward.
  3. Pull the connector upward to remove it.
  4. Pull both latches toward you and remove the fuse box.
  5. Turn the fuse box over and open the lid.

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 2025 Ford Focus fuse chart

We haven’t drawn a schematic of the under hood 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.

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

  • 5

    Under the bonnet (engine compartment)

    Fuse ·10A · Data link connector.

    Position not shown on the schematic. Find fuse 5 on the fuse box legend.

  • 22

    Below the glove compartment

    Fuse ·7.5A · Steering wheel module. Instrument cluster. Data link connector.

    Position not shown on the schematic. Find fuse 22 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.

  • Ignition on

    Most scanners need the ignition on to talk to the car, even if they light up without it.

  • Scanner compatibility

    Some basic scanners can’t communicate with every car. Try another scanner before assuming a fault.

  • Bent pins

    Check the socket under the dashboard for bent or pushed-back pins.

Sources & verification

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.