Find a fuse

Vauxhall Corsa · 2023

2023 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’s February 2023 and September 2023 Corsa handbooks print no fuse chart (a defective fuse must be replaced by a workshop). The chart below is from the July 2022 edition and applies only to cars that came with that handbook.

Quick answer

Verified

Applies toCorsa · Handbook edition July 2022Corsa electric · Handbook edition July 2022

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
Engine compartment (Vauxhall: “The three fuse boxes are located in: engine compartment, instrument panel”).

Where is the fuse box?

Engine compartment fuse box

Engine compartment (Vauxhall: “The three fuse boxes are located in: engine compartment, instrument panel”).

  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 2023 Vauxhall Corsa 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

  • 12

    Engine compartment (Vauxhall: “The three fuse boxes are located in: engine compartment, instrument panel”).

    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

Applies toCorsa · Handbook edition July 2022

Status
Verified
Specification
UK market
Last checked
14 October 2026

Applies toCorsa electric · Handbook edition July 2022

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.