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Ford Focus · 2012

2012 Ford Focus Starter Fuse & Relay

Engine won’t crank? Find the starter fuse and relay before replacing bigger parts.

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

Quick answer

Verified

Applies toBuilt 8 August 2011 to 8 January 2012Built 9 January 2012 to 1 April 2012Built 2 April 2012 to 28 May 2012Built 29 May 2012 to 3 October 2012Built 4 October 2012 to 25 August 2013

Fuse
13
Amperage
30A
Fuse box
Engine compartment
Location
In the engine compartment

Where is the fuse box?

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 2012 Ford Focus fuse chart

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

  • 13

    In the engine compartment

    Fuse ·30A · Starter relay

    Position not shown on the schematic. Find fuse 13 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.

  • Battery charge

    Clicking, slow cranking or dim dash lights usually mean a flat battery, not a fuse.

  • Battery terminals

    Loose or corroded terminals can stop the starter even with a good battery.

  • Immobiliser

    A flashing security light can mean the key isn’t recognised. Try the spare key.

  • Clutch or gear selector switch

    Many cars only crank with the clutch fully pressed, or in Park/Neutral on automatics.

  • Starter motor or solenoid

    A single loud click with good battery voltage often points to the starter itself.

Sources & verification

Applies toBuilt 8 August 2011 to 8 January 2012

Status
Verified
Specification
UK market
Last checked
14 October 2026
  • Manufacturer manual listingFord UK — 2011 Focus (2010) owner manuals · Ford Motor Company · Owner’s Manual (Vehicles Built From: 08/08/2011 Vehicles Built Up To: 08/01/2012) · Accessed 14 October 2026
  • Manufacturer manual listingFord UK — 2012 Focus (2010) owner manuals · Ford Motor Company · Owner’s Manual (Vehicles Built From: 08/08/2011 Vehicles Built Up To: 08/01/2012) · Accessed 14 October 2026
  • Owner’s manualFord Focus (2010) Owner’s Manual — CG3568en, edition 08/2011 · Ford Motor Company · Fuse specification chart — Engine compartment fuse box (pp. 180–182); Fuse specification chart — Passenger compartment fuse box (pp. 183–185); Fuse specification chart — Load compartment fuse box (pp. 185–187) · Accessed 14 October 2026

Applies toBuilt 9 January 2012 to 1 April 2012

Status
Verified
Specification
UK market
Last checked
14 October 2026
  • Manufacturer manual listingFord UK — 2012 Focus (2010) owner manuals · Ford Motor Company · Owner’s Manual (Vehicles Built From: 09/01/2012 Vehicles Built Up To: 01/04/2012) · Accessed 14 October 2026
  • Owner’s manualFord Focus (2010) Owner’s Manual — CG3568en, edition 01/2012 · Ford Motor Company · Fuse specification chart — Engine compartment fuse box (pp. 180–182); Fuse specification chart — Passenger compartment fuse box (pp. 183–185); Fuse specification chart — Load compartment fuse box (pp. 185–187) · Accessed 14 October 2026

Applies toBuilt 2 April 2012 to 28 May 2012

Status
Verified
Specification
UK market
Last checked
14 October 2026
  • Manufacturer manual listingFord UK — 2012 Focus (2010) owner manuals · Ford Motor Company · Owner’s Manual (Vehicles Built From: 02/04/2012 Vehicles Built Up To: 28/05/2012) · Accessed 14 October 2026
  • Owner’s manualFord Focus (2010) Owner’s Manual — CG3568en, edition 04/2012 · Ford Motor Company · Fuse specification chart — Engine compartment fuse box (pp. 186–188); Fuse specification chart — Passenger compartment fuse box (pp. 190–191); Fuse specification chart — Load compartment fuse box (pp. 191–193) · Accessed 14 October 2026

Applies toBuilt 29 May 2012 to 3 October 2012

Status
Verified
Specification
UK market
Last checked
14 October 2026
  • Manufacturer manual listingFord UK — 2012 Focus (2010) owner manuals · Ford Motor Company · Owner’s Manual (Vehicles Built From: 29/05/2012 Vehicles Built Up To: 03/10/2012) · Accessed 14 October 2026
  • Owner’s manualFord Focus (2010) Owner’s Manual — CG3568en, edition 06/2012 · Ford Motor Company · Fuse specification chart — Engine compartment fuse box (pp. 187–189); Fuse specification chart — Passenger compartment fuse box (pp. 191–192); Fuse specification chart — Load compartment fuse box (pp. 192–194) · Accessed 14 October 2026

Applies toBuilt 4 October 2012 to 25 August 2013

Status
Verified
Specification
UK market
Last checked
14 October 2026
  • Manufacturer manual listingFord UK — 2012 Focus (2010) owner manuals · Ford Motor Company · Owner’s Manual (Vehicles Built From: 04/10/2012 Vehicles Built Up To: 25/08/2013) · Accessed 14 October 2026
  • Manufacturer manual listingFord UK — 2013 Focus (2010) owner manuals · Ford Motor Company · Owner’s Manual (Vehicles Built From: 04/10/2012 Vehicles Built Up To: 25/08/2013) · Accessed 14 October 2026
  • Owner’s manualFord Focus (2010) Owner’s Manual — CG3568en, edition 01/2013 · Ford Motor Company · Fuse specification chart — Engine compartment fuse box (pp. 191–193); Fuse specification chart — Passenger compartment fuse box (pp. 195–196); Fuse specification chart — Load compartment fuse box (pp. 196–198) · Accessed 14 October 2026

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