Engine light on? Read it yourself first

It could be a £30 sensor. It could be a £900 catalytic converter. Find out before you pay anyone.

AutoScan reads the fault code straight out of your car and tells you what it means in plain English, on your own Windows laptop, in about two minutes. A UK garage typically charges £50–£120 just to plug in and tell you the same thing.

Windows PC or laptop · works with any ELM327 adapter · one-off licence, no subscription

The same fault, two endings

Which one of these is your week?

A relaxed man beside his car on the driveway with a laptop on the bonnet
The cheap ending
15 minutes
A failing air-flow sensor. AutoScan names the code, you fit the part yourself in a quarter of an hour, then reset the light from the same screen.
A man at his kitchen table reading a garage invoice, looking tired
The expensive ending
Hundreds
The same fault ignored long enough to damage the catalytic converter. Caught early, that repair never happens. That is the whole reason AutoScan exists.

Three reasons people plug one in

You are probably here for one of these

“The light came on this morning.”

Find out what it actually is

AutoScan pulls the stored and pending trouble codes off the ECU and looks each one up in a built-in database of 14,309 codes. You get the code, the system it belongs to, and a description — not a mystery light.

“The MOT is next week.”

Check before you book, not after

Readiness monitors and emissions data are on screen before you drive to the test centre. If something is not ready or not passing, you find out at home, for free, while you still have time.

“The garage quoted me £480.”

Know whether the quote fits the fault

Read the codes and the freeze-frame data yourself and you walk into that conversation knowing what the car reported. You can save the whole session as a PDF report and take it with you.

A laptop connected to a car, reading diagnostics from the OBD2 port

Who uses it

A laptop, a cheap adapter, and the car’s own data

AutoScan is used by people with one car on the drive and by garages running a ramp all day. The tool is the same; what changes is how far you take it. Someone checking why the light came on before an MOT, and a technician reading every module on a customer’s car, are looking at the same screen.

  • Owners who would rather know what the fault is before booking it in
  • DIY mechanics working on their own and the family’s cars
  • Mobile mechanics diagnosing at the roadside
  • Garages reading every module, under a commercial licence

Every screen, no mock-ups

This is the software. Here is what you actually get.

Real screenshots from AutoScan Enhanced running on Windows — not renders, and not a picture of a box.

The fault, in plain English
The fault, in plain English
Every stored and pending code, decoded against a built-in database of 14,309 of them. Not a number to google — a description of what is actually wrong.
Watch the engine while it runs
Watch the engine while it runs
Up to 90 live sensor readings — RPM, fuel trims, oxygen sensors, coolant, misfire counts. This is how you catch a fault that only shows up when the car is warm.
Know before the MOT, not after
Know before the MOT, not after
Readiness monitors tell you whether the car will even be accepted for its emissions test. Check it on the driveway instead of paying for a retest.
What the car was doing when it failed
What the car was doing when it failed
Freeze frame captures speed, load and temperature at the exact moment the fault triggered. It is the single best clue for an intermittent problem.
Gauges you already know how to read
Gauges you already know how to read
The same live data as a familiar instrument cluster, for when you want to watch one number while someone revs the engine.
Codes matched to your make
Codes matched to your make
Pick the manufacturer and AutoScan reads the manufacturer-specific codes for it, not just the generic ones every scanner shows.

Try it before you pay

Running in three steps

The trial installs on any Windows PC and downloads right now. You can confirm it runs, finds your adapter and talks to your car before you spend anything.

Download and install

A normal Windows installer. No account and no card required to try it.

Plug the adapter in

The OBD2 port is under the dashboard on the driver’s side. Ignition on, engine off.

Pick your make and read

Choose the manufacturer so the codes are matched to your car, then run Diagnostics.

Free, with unlimited time to evaluate. The unregistered version cannot clear codes or save reports — everything else works, so you can check your adapter and your car before you buy. Would rather not give an email? Download Standard directly or Enhanced directly.

One thing the software cannot do on its own

You will need an ELM327 adapter

AutoScan reaches your car through an ELM327 adapter that plugs into the OBD2 port under the dashboard — USB for a laptop, Bluetooth for a phone or tablet. They cost around £10–£30 and are sold everywhere. We are a software company and no longer sell hardware, so buy whichever you prefer.

Already own an ELM327 from another app — Torque, Car Scanner, FORScan? It will work here too. There is nothing to buy again.

Things you can check before you spend a penny

The case for AutoScan, in facts rather than adjectives

14,309

Fault codes in the built-in database, searchable inside the software.

13

Video tutorials, recorded in AutoScan itself — watch them.

£0

To try it on your own car today, with no account.

£0/mo

One-off licence. Rivals moved to monthly billing. We have not.

“Quality item. A+++++”

Verified eBay buyer feedback

“As described and then some!”

Verified eBay buyer feedback

“Excellent communication and fast delivery.”

Verified eBay buyer feedback

“Does exactly what it says.”

Verified eBay buyer feedback

The full range

From one car on the drive to a working ramp

Every edition reads fault codes, describes them from the built-in database and resets the warning light. Each step up adds live data, module coverage, commercial licensing and ECU-level tooling — and every one is a one-off key, emailed within minutes.

Edition 01

AutoScan Standard

£24.99
one-off · lifetime licence key
Cheaper than a single garage plug-in. The first code you read has already paid for it.
  • Reads stored and pending fault codes on any make
  • Plain-English descriptions from the 14,309-code database
  • Clears the code and the dashboard warning light
  • Lifetime key · personal use · 1 year of updates
Buy Standard
Most popular

Edition 02 · most popular

AutoScan Enhanced

£49.99
one-off · lifetime licence key
See why the code was set, not just that it was. The edition most people should buy.
  • Live data from up to 90 sensors while the engine runs
  • Freeze frame — the conditions the second the fault hit
  • MOT readiness monitors, ABS and SRS airbag diagnostics
  • Lifetime key · personal use · 2 years of updates
Buy Enhanced

Edition 03

AutoScan Enhanced PLUS

£64.99
one-off · lifetime licence key
Work without a cable, from the driver’s seat — and charge for the work.
  • OBD2 Bluetooth — read the car while it is being driven
  • Mobile app software for Android and iOS
  • Everything in Enhanced
  • Lifetime key · commercial use · 3 years of updates
Buy Enhanced PLUS

For the trade

When the whole module is the job

These two go past reading and clearing codes into working on the ECU itself. Both allow commercial use, and both include the ECU Tuning Pack.

Edition 04 · ECU workshop

AutoScan Enhanced ULTRA

£84.99
one-off · lifetime licence key
When reading the fault is no longer enough and the module itself is the job.
  • Over 170 ECU programs and 4 GB of ECU software
  • 10 GB library of ECU dumps to compare and restore from
  • EGR, DPF, immobiliser, dash, radio and airbag module tools
  • Includes the ECU Tuning Pack
  • Lifetime key · commercial use · 3 years of updates
Buy Enhanced ULTRA

Edition 05 · the full workshop

AutoScan Enhanced ULTIMATE

£219.99
one-off · lifetime licence key
The whole vehicle is your job — every module, and the reference library behind it.
  • Engine, ABS, SRS airbag, transmission and gearbox
  • 300 GB of ECU software and 400,000+ remapping files
  • 10 GB of video and e-book training, full dump database
  • Includes the ECU Tuning Pack
  • Lifetime key · commercial use · lifetime updates
Buy Enhanced ULTIMATE

All editions are Windows software and need an ELM327-based OBD2 adapter, which we no longer sell. Compatible with European petrol vehicles from 2001, diesel from 2004, and non-European vehicles from 1996. Licence keys are emailed within minutes of your order.

Find out what it is tonight.

Download the trial, plug in an ELM327, and read the code yourself before anyone quotes you for it.

Windows · no account needed · one-off licence from £24.99