TOPDON ArtiDiag500 (AD500) OBD2 Scanner: features, specs and uses

The TOPDON AD500 (also called ArtiDiag500) is a handheld OBD2 scan tool for home mechanics. It plugs into the diagnostic port of a car, reads fault codes from several control units and performs some common maintenance resets. It has its own touchscreen, so no phone is needed.

What "four systems" means

Basic code readers only look at the engine. TOPDON says the AD500 also reads the transmission, ABS (anti-lock braking) and SRS (airbag) systems, which are separate control modules in the car. For each one, it can read and clear fault codes and show live data streams. A DTC lookup function explains what a code means, and data can be recorded for later study. It also supports the full set of generic OBD2 functions, including emissions-related self-checks, and works as a battery voltage monitor.

The six reset functions

After some maintenance, a car's computer needs to be told the job is done. The AD500 lists six:

• Oil reset: clears the service reminder after an oil change.
• Throttle adaptation: relearns throttle position after cleaning or replacement.
• SAS: recalibrates the steering angle sensor, often needed after alignment work.
• TPMS: tyre-pressure monitoring system service functions.
• BMS: battery management reset after fitting a new battery on cars that track it.
• EPB: electronic parking brake service, used when changing rear brake pads on some cars.

Which resets work depends on the vehicle, so check the car's coverage list.

Screen, speed and software

The tool has a 5-inch touchscreen plus physical buttons. Inside, TOPDON lists a 4-core 1.5 GHz processor, 2 GB of RAM and 32 GB of storage, running Android 11, with a 3,350 mAh battery. Updates are delivered over Wi-Fi, and TOPDON describes them as lifetime updates. Reports can be sent by email. AutoVIN reads the vehicle identification number automatically, which saves typing and helps select the right vehicle profile.

Coverage and languages

TOPDON says it supports full OBD2 functions on 67+ vehicle brands, with 12 interface languages. The tool measures about 8.0 x 5.0 x 1.0 inches (20 x 13 x 2.5 cm) and weighs 2 lb (about 0.9 kg). The brand adds a one-year quality guarantee.

Who it suits

It suits DIY owners who change their own oil and brakes, want to know why a warning light came on before visiting a garage, or look after several family cars. Professional workshops with specialised needs typically use more advanced equipment.

What to check before you buy

• Vehicle coverage: confirm your make, model and year, and the specific systems and resets you need.
• Port and plug: OBD2 is standard on most cars sold in North America from 1996 and in Europe from around 2001-2004. Check your vehicle.
• Regional version: the model is listed as AD500-US. Check it matches your region.
• Wi-Fi access: updates need a connection.
• Know the limits: a code shows where to look, not always which part has failed. Follow the vehicle's service manual, especially for brakes and airbags.

The short version

• Handheld OBD2 tool with a 5-inch touchscreen and physical buttons.
• Reads engine, transmission, ABS and SRS systems.
• Six reset functions: oil, throttle, SAS, TPMS, BMS and EPB.
• Android 11 with Wi-Fi updates, AutoVIN and email reports.
• Covers 67+ brands, in 12 languages.

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