A fault code names a symptom, never a cause · review
LAIVIYA OBD2 reader with 2.8-inch colour screen review
The cheapest way to stop guessing at a warning light: engine codes, freeze frame and live data on a colour screen, with a battery voltage test thrown in — and no access to ABS or airbag, which the maker states plainly.
The bottom line The honest entry point. It does the engine, it says so, and it costs less than a diagnostic hour.
What lands on the bench
A handheld reader with a 2.8-inch colour screen that plugs into the diagnostic socket and reads the engine control unit: stored codes, pending codes, freeze frame, live data and I/M readiness monitors, plus a battery voltage check.
What it reaches, and what it does not
The engine, and nothing else. The maker publishes a database of 35 901 code descriptions, which sounds like coverage and is not — it is the dictionary the tool prints from. A warning light that comes from ABS, airbag or transmission produces nothing here, and that is the honest limit of this price tier.
The feature that earns its place
Live data. Watching coolant temperature, engine speed and fuel trim while the engine runs is what separates “the code says oxygen sensor” from “the sensor is reporting something the engine is actually doing”. At this price, it is the reason to choose a screen over a plain code reader.
What is not published
Update terms. Nothing in the listing says whether the code database is updated, or for how long — for a tool at this price it is reasonable to assume the answer is no.
Availability
On sale from 20 € to 23 € on the German, French, Italian and Spanish Amazon stores at the time of checking.
Listed but with no offer on the American and British Amazon stores — the reference exists there and nobody is currently selling it.
Prices and availability are what Keepa reported on the date this page was updated; both move.
Prices quoted in this text were read on 4 September 2026. The live price is at the top of the page.
What we like, and what we don't
Strengths
Reads, clears and graphs live engine data at a price where most tools only read codes
The maker states the protocol count and the code database size rather than implying coverage
A battery voltage test on the same tool, which is the second thing you want when a car will not start
Compromises
Engine system only — a light coming from ABS or airbag is invisible to it
No service reset functions, so an oil-service counter still needs another tool
The 35 901-code database is a list of descriptions, not a measure of what the tool can reach
Specifications
Systems reached
Engine only — stated; no ABS, airbag or transmission access
Display
2.8-inch colour screen, stated
Functions
Read and clear codes, freeze frame, live data stream, I/M readiness, battery test — stated
Protocols
9 OBDII/EOBD protocols, stated
Code database
35 901 DTC descriptions, stated by the maker
Languages
8, stated
Amazon reference
B0GSG8CQTP (same reference on 6 Amazon marketplaces)
EAN
9331187415686
Questions people actually ask
Will it turn the light off?
It clears engine codes, and the lamp goes out with them. If the condition that set the code is still present, both come back on the drive cycle that detects it.
Does it work on any car?
On any car with EOBD, which means petrol sold in the EU from 2001 and diesel from 2004. The maker states compatibility with 99 % of vehicles built after 1996 and nine protocols.
Engine system · LCD screen · full OBDII protocol set stated · plug and play
A plain, plug-and-play engine code reader whose selling point is protocol completeness — the maker names the protocols explicitly, which several tools at this price do not.
Best for: Someone who wants a reader in the glovebox that needs no phone, no app and no account.
Full-vehicle scan stated · 6 reset services · Bluetooth 5.0, 10 m stated · AutoVIN · battery voltage monitoring
A Bluetooth box driven by its app rather than a screen, sold on two things a plain reader does not have: a scan across vehicle systems and six of the common service resets.
Best for: A home mechanic who already reaches for a phone and wants resets rather than just codes.
The tool where the update policy is the headline: LAUNCH states lifetime free updates on a four-system scanner with a touchscreen and seven service resets.
Best for: Someone who works on several cars, or on one car with an ABS light.