Find a fuse

Vauxhall Corsa · 2020

2020 Vauxhall Corsa OBD Port Fuse

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

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

Partly covered: Vauxhall published October 2019, January 2020 and July 2020 Corsa handbooks that could apply to a 2020 car, and their fuse charts differ. Vauxhall doesn’t say which cars each edition applies to, so we can’t tell which one matches a particular 2020 Corsa. Every official chart is shown below — check the edition printed near the end of your handbook, or compare with the fuse box legend in your car, before removing anything.

Which 2020 Corsa do you have?

The obd port fuse differs between versions of the 2020 Vauxhall Corsa. Until you choose, every possible result is shown.

Not sure which Corsa you have?
  • Vauxhall’s handbook prints separate fuse tables for electric and non-electric (petrol or diesel) cars: Corsa and Corsa electric.
  • An electric car has a charging socket instead of a fuel filler, and no exhaust.
  • Each Vauxhall owner’s manual prints its edition near the end, for example “Edition: September 2014”. If you have your car’s handbook, choose the option with the same edition.
  • Vauxhall doesn’t say which cars each edition applies to, so the date of your car alone can’t tell you. Without the handbook, compare the circuits on each option with the legend on your fuse box before removing anything.

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 Corsa · Handbook edition October 2019

  • 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 B Handbook edition January 2020 (Corsa or Corsa electric); or Handbook edition July 2020 (Corsa or Corsa electric)

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

Vauxhall’s handbook doesn’t print fuse ratings, so none is shown. Fit a replacement with the same rating as the fuse you remove — the handbook says: “Data on the replacement fuse must match the data on the defective fuse.”

Fuse
12
Fuse box
Engine compartment
Location
The fuse box is in the front left of the engine compartment.

Where is the fuse box?

Option A Corsa · Handbook edition October 2019

Option B Handbook edition January 2020 (Corsa or Corsa electric); or Handbook edition July 2020 (Corsa or Corsa electric)

Engine compartment fuse box

The fuse box is in the front left of the engine compartment.

  1. Disengage the cover and remove it.
  2. After having changed defective fuses, close the fuse box cover and lock it.
  3. If the fuse box cover is not closed correctly, malfunction may occur.

Fuse box diagram

Full 2020 Vauxhall Corsa fuse chart

Option A Corsa · Handbook edition October 2019

Option B Handbook edition January 2020 (Corsa or Corsa electric); or Handbook edition July 2020 (Corsa or Corsa electric)

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

  • 12

    The fuse box is in the front left of the engine compartment.

    Fuse · Diagnostic link connector

    Position not shown on the schematic. Find fuse 12 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

Corsa · Handbook edition October 2019

Status
Verified
Specification
UK market
Last checked
14 October 2026

Corsa · Handbook edition January 2020

Status
Verified
Specification
UK market
Last checked
14 October 2026

Corsa · Handbook edition July 2020

Status
Verified
Specification
UK market
Last checked
14 October 2026

Corsa electric · Handbook edition January 2020

Status
Verified
Specification
UK market
Last checked
14 October 2026

Corsa electric · Handbook edition July 2020

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.