Vauxhall Astra · 2012
2012 Vauxhall Astra Towbar Fuse
Trailer lights or towing electrics not working? Find the fuses Vauxhall lists for the trailer module and trailer outlet / socket.
- UK specification
- Verified data
- Checked 15 October 2026
- Sources
Quick answer
VerifiedApplies toHandbook edition August 2011Handbook edition January 2012Handbook edition August 2012
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.”
Trailer module
- Fuse
- 1
- Fuse box
- Load compartment
- Location
- The fuse box is on the left side of the load compartment behind a cover.
Trailer outlet
- Fuse
- 2
- Fuse box
- Load compartment
- Location
- The fuse box is on the left side of the load compartment behind a cover.
Trailer module, Trailer socket
- Fuse
- 11
- Fuse box
- Load compartment
- Location
- The fuse box is on the left side of the load compartment behind a cover.
Trailer outlet
- Fuse
- 13
- Fuse box
- Load compartment
- Location
- The fuse box is on the left side of the load compartment behind a cover.
Where is the fuse box?
Load compartment fuse box
The fuse box is on the left side of the load compartment behind a cover.
The fuses are the same in every handbook edition shown here — only the steps for opening this fuse box are worded differently:
Handbook edition August 2011 · Handbook edition January 2012
- 5-door hatchback: Remove the cover.
- Sports tourer: Fold down the blind and remove.
- Sports tourer: Remove the cover.
- Sports tourer: When assembling press the blind into the rubber grommets to reach full retention force.
Handbook edition August 2012
- 3-door hatchback, 5-door
- hatchback: Remove the cover.
- Sports tourer: Fold down the blind and remove.
- Sports tourer: Remove the cover.
- Sports tourer: When assembling press the blind into the rubber grommets to reach full retention force.
Fuse box diagram
Full 2012 Vauxhall Astra fuse chartWhere to look
- 1
The fuse box is on the left side of the load compartment behind a cover.
Fuse · Trailer module
Highlighted on the load compartment map.
- 2
The fuse box is on the left side of the load compartment behind a cover.
Fuse · Trailer outlet
Highlighted on the load compartment map.
- 11
The fuse box is on the left side of the load compartment behind a cover.
Fuse · Trailer module, Trailer socket
Highlighted on the load compartment map.
- 13
The fuse box is on the left side of the load compartment behind a cover.
Fuse · Trailer outlet
Highlighted on the load compartment map.
The map shows where each fuse sits. Always confirm the number against the legend on the fuse box cover before pulling anything.
How to replace the fuse safely
- Switch off the ignition and all electrical equipment. Take the key out, or move a keyless fob away from the car.
- Open the fuse box and find the fuse using the number on the cover legend or the chart on this page.
- Pull the fuse straight out with the plastic fuse puller (usually clipped inside the fuse box) or fine-nose pliers.
- Look at the metal strip inside the fuse. A broken or burnt strip means it has blown.
- Fit a new fuse with exactly the same amperage rating. The number on top and the colour should match.
- 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.
Vauxhall-fitted or aftermarket
These fuses cover the circuits Vauxhall labels in its handbook. An aftermarket towbar kit may have its own separate fuse.
Trailer socket and plug
Corroded pins in the towbar socket or trailer plug are a common cause. Clean and check them.
Sources & verification
Applies toHandbook edition August 2011
- Manufacturer manual listingVauxhall UK — Owners’ manuals: “Astra owners’ manuals” · Vauxhall Motors · August 2011 — Owners' manual · Accessed 15 October 2026
- Owner’s manualVauxhall Astra Owner’s Manual — Edition August 2011 (KTA-2685/4-VX-en) · Vauxhall Motors · Vehicle care › Electrical system › Fuses (pp. 191–197) · Accessed 15 October 2026
Applies toHandbook edition January 2012
- Manufacturer manual listingVauxhall UK — Owners’ manuals: “Astra owners’ manuals” · Vauxhall Motors · January 2012 — Owners' manual · Accessed 15 October 2026
- Owner’s manualVauxhall Astra Owner’s Manual — Edition January 2012 (KTA-2685/5-VX-en) · Vauxhall Motors · Vehicle care › Electrical system › Fuses (pp. 197–204) · Accessed 15 October 2026
Applies toHandbook edition August 2012
- Manufacturer manual listingVauxhall UK — Owners’ manuals: “Astra owners’ manuals” · Vauxhall Motors · August 2012 — Owners' manual · Accessed 15 October 2026
- Owner’s manualVauxhall Astra Owner’s Manual — Edition August 2012 (KTA-2685/6-VX-en) · Vauxhall Motors · Vehicle care › Electrical system › Fuses (pp. 239–246) · Accessed 15 October 2026
Fuse layouts can differ between trim levels and optional equipment. Always confirm against the legend on your fuse box.