About the site
About the site: 22 pieces on carscan.app — what it means, what to look at in the live data and where to start. Open and free, no app needed.
The dashboard symbol page now leads somewhere
A dashboard lamp is the most common way in: you can see it without any adapter. Yet the lamp page led only to the code reference — a list of numbers t
6 September 20262 min
Twenty reference sections: catalyst, canister, soot filter
The «emission controls» heading held 41 codes: the catalyst, exhaust gas recirculation, the charcoal canister, the fuel level and the particulate filt
6 September 20262 min
Sixty codes under one heading split into four sections
The «fuel and air» section held 62 codes: oxygen sensors, throttle, accelerator pedal and mixture — four different conversations in one list. Each now
6 September 20262 min
Three new reference sections: communication, brakes, body
Until today the reference sections existed only for engine codes. Forty-nine codes — every U, C and B — belonged to none: they were in the reference,
6 September 20262 min
All 298 codes in the reference now have a way forward
A week ago 169 of the 298 code pages ended with a description and nothing else — nowhere to go. Today not one is left.
6 September 20262 min
Eleven codes got a walkthrough without new text
It turned out that some codes already had a walkthrough written — there was simply no link to it from the code page. Plus three new articles. Dead end
6 September 20262 min
Walkthroughs: urea, speed sensor, internal unit faults
Another 20 codes stopped being dead ends. Code pages with nowhere to go after the description: 55 left out of 298 — it was 169 two rounds ago.
6 September 20261 min
Walkthroughs: throttle, mixture by bank, tank sender
Another 28 codes stopped being dead ends. Code pages with nowhere to go after the description: 75 left out of 298.
6 September 20261 min
Twenty more codes with walkthroughs: oil, relays, charging
Three new walkthroughs cover oil pressure, the fan relay and charging. Codes whose page used to end in nothing: 103 instead of 123.
6 September 20261 min
Transmission and lost-communication codes: walkthroughs
The two largest blank spots in the reference are closed: 46 codes that had neither an article nor a guide now lead to a walkthrough.
6 September 20261 min
Twenty step-by-step guides and four new questions
Fuel use, cold starts, unstable idle, freeze frames, accepting a repair — and checking the adapter itself.
6 September 20262 min
The live-data reference is now grouped
Forty-seven parameters used to be one flat list. Now there are eight groups — and the search understands their names.
6 September 20262 min
Four new step-by-step guides, linked from the code pages
Catalyst, thermostat, EGR and a code that comes back after a reset. Until now a guide could only be found in its own section.
5 September 20262 min
The site moved to its own server and got faster
Pages are built in 6 milliseconds instead of 25. The site used to share a machine with unrelated software; now it has one to itself.
5 September 20262 min
Five new symptoms and four new dashboard lights
Heavy steering, a cold heater, AdBlue and start-stop. We added what people search for in words rather than by code.
5 September 20263 min
Every one of the 298 codes now has a where-to-start guide
Some codes used to carry a single line of definition. Now every one says what to check first, and why the part is not the first move.
5 September 20263 min
«Where to start» advice now covers 113 codes
Thirty-nine new write-ups in two batches: sensor circuits, coils, injectors, the fuel pump, boost. In the app and on the site alike.
5 September 20262 min
Reading several fault codes at once
A car almost never gives you a single code. Paste the whole list and we will say not only what each one means, but what they mean together.
4 September 20262 min
New section: what the car is doing
Ten symptoms, from a stumbling engine to a smell of petrol. Each one says what to look at in the live data, so that ten possible causes become two or
4 September 20262 min
New sections: my car, glossary, search and payment rules
Whether the car fits, what the terms in code descriptions mean, search across the whole site and honest payment and refund rules.
3 September 20262 min
The app and the site speak English
App screens, letters and site pages are translated — including code explanations and hints on where to start checking.
2 September 20261 min
The app now has its own home: carscan.app
The site, the account area and licence purchase have moved to a separate domain. Old links keep working.
2 September 20261 min