UDIAG A300

UDIAG A300 obd2 scanner front view
UDIAG A300 obd2 scanner front viewUDIAG A300 obd2 scanner front view with cableUDIAG A300 obd2 scanner angle viewUDIAG A300 obd2 scanner in handUDIAG A300 obd2 scanner carrying caseUDIAG A300 obd2 scanner with case

4.3" 4-system scanner (engine, transmission, ABS, SRS) with 6 service functions

Model code: A300 Manufacturer: Udiag

📄 UDIAG A300 A500 A550 User Manual ↗

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Description

UDIAG A300 is a 4-system handheld scanner (engine, transmission, ABS, SRS/airbag) with a 4.3" colour screen (480x272) and hot keys, powered from the vehicle (8-18 V).

Functions: read current, pending and permanent codes, clear codes and turn off warning lights, live data in text and graph, freeze frame, ECU information and Auto VIN, all 10 OBDII modes, plus 6 service functions: oil reset, EPB, SAS, throttle adaptation, TPMS and ABS bleeding. Coverage: 90-110+ US, European and Asian makes (1996-2025). Reports can be printed via PC. Updates and printing use the TF card with a card reader and the UDIAG updater on a Windows PC.

Function availability depends on make, model and year.

Specifications

Product typeDevice with pre-installed software (standalone)
OEM (Original Equipment Manufacturer) product? iNo
For which vehicleCars
Price (USD)$396 – $484
Connection with computer / tablet / phoneUSB
Other connection (details)TF card + card reader (PC updater for updates and report printing)
Vehicle power supply system12V
Supported protocolsK-line, KWP2000, SAE J1850, CAN, J1979
Months of free updates24
Subscription model (description)Product page: 2 years of free online updates; UDIAG comparison table says lifetime free; Amazon listing shows a 3-year free update badge.
Menu languageEnglish
Other language (details)Multi-language menu (list not published by UDIAG)
Warranty (months)12
Warranty details (optional)1-year hardware warranty (replacement for non-human damage)

Supported functions (19)

Advanced Diagnostics

  • O2 sensor data i (O2 sensor test (Mode 05).)
  • DTC lookup i (Built-in DTC library.)
  • Live data graphing i

Diagnostics

  • Reading the VIN i
  • Read fault codes (DTC) i (Engine, transmission, ABS and airbag (SRS) only. UDIAG states 110+ supported makes without a public list – availability depends on make, model, year and installed control modules; check your VIN with UDIAG before buying.)
  • Clear fault codes (DTC) i (Engine, transmission, ABS and airbag (SRS) only.)
  • Live data stream i (Engine, transmission, ABS and airbag (SRS) only.)
  • Freeze frame data i
  • I/M readiness monitors i
  • EVAP system test i (Component test / EVAP (OBD2 Mode 08), where supported by the vehicle.)
  • On-board monitor test (Mode 06) i
  • ECU information i

Reports

  • Print / share i (Print reports via PC.)

Service reset

  • Oil / service / inspection reset i (Oil reset. UDIAG states 110+ supported makes without a public list – availability depends on make, model, year and installed control modules; check your VIN with UDIAG before buying.)
  • Electronic parking brake (EPB) service i (EPB. UDIAG states 110+ supported makes without a public list – availability depends on make, model, year and installed control modules; check your VIN with UDIAG before buying.)
  • Steering angle sensor (SAS) reset i (SAS. UDIAG states 110+ supported makes without a public list – availability depends on make, model, year and installed control modules; check your VIN with UDIAG before buying.)
  • Throttle body adaptation i (Throttle reset. UDIAG states 110+ supported makes without a public list – availability depends on make, model, year and installed control modules; check your VIN with UDIAG before buying.)
  • TPMS reset / relearn i (TPMS reset. UDIAG states 110+ supported makes without a public list – availability depends on make, model, year and installed control modules; check your VIN with UDIAG before buying.)
  • ABS brake bleeding i (ABS bleeding. UDIAG states 110+ supported makes without a public list – availability depends on make, model, year and installed control modules; check your VIN with UDIAG before buying.)
Conditions for specific vehicles (1)

Notes added by the manufacturer that apply only to the vehicles listed below — the function itself is supported.

Notes for specific vehicles (all functions)

Alpine (1)
  • Alpine
    EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Citroen (1)
  • Citroen
    EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Cupra (1)
  • Cupra
    EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
DS (1)
  • DS
    EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Dacia (1)
  • Dacia
    EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Daihatsu (1)
  • Daihatsu
    EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Lancia (1)
  • Lancia
    EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
MG (1)
  • MG
    EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Opel (1)
  • Opel
    EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Peugeot (1)
  • Peugeot
    EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Ravon (1)
  • Ravon
    EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Renault (1)
  • Renault
    EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Rover (1)
  • Rover
    EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
SEAT (1)
  • SEAT
    EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Skoda (1)
  • Skoda
    EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
SsangYong (1)
  • SsangYong
    EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Vauxhall (1)
  • Vauxhall
    EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).

Compatibility disclosure

Four systems only (engine, transmission, ABS, SRS) on 90–110+ makes and 6 service functions (oil, EPB, SAS, throttle, TPMS, ABS bleeding). No active tests, adaptation or coding. Model years are not published by UDIAG; entries start at 1996 (EU-only makes 2001; diesel EOBD 2004). Function availability depends on make, model, year and installed control modules – check your VIN with UDIAG before buying. OEM dealer software and licences are not included.

Compatible vehicles (72 makes)

Check if it fits your vehicle:

Abarth (all models)
  • All models of this make (1996–…)
Acura (all models)
  • All models of this make (1996–…)
Alfa Romeo (all models)
  • All models of this make (1996–…)
Alpine (all models)
  • All models of this make (2001–…) ✎ EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Aston Martin (all models)
  • All models of this make (1996–…)
Audi (all models)
  • All models of this make (1996–…)
BMW (all models)
  • All models of this make (1996–…)
Bentley (all models)
  • All models of this make (1996–…)
Bugatti (all models)
  • All models of this make (1996–…)
Buick (all models)
  • All models of this make (1996–…)
Cadillac (all models)
  • All models of this make (1996–…)
Chevrolet (all models)
  • All models of this make (1996–…)
Chrysler (all models)
  • All models of this make (1996–…)
Citroen (all models)
  • All models of this make (2001–…) ✎ EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Cupra (all models)
  • All models of this make (2001–…) ✎ EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
DS (all models)
  • All models of this make (2001–…) ✎ EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Dacia (all models)
  • All models of this make (2001–…) ✎ EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Daewoo (all models)
  • All models of this make (1996–…)
Daihatsu (all models)
  • All models of this make (2001–…) ✎ EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Dodge (all models)
  • All models of this make (1996–…)
Ferrari (all models)
  • All models of this make (1996–…)
Fiat (all models)
  • All models of this make (1996–…)
Ford (all models)
  • All models of this make (1996–…)
GMC (all models)
  • All models of this make (1996–…)
Genesis (all models)
  • All models of this make (1996–…)
Honda (all models)
  • All models of this make (1996–…)
Hummer (all models)
  • All models of this make (1996–…)
Hyundai (all models)
  • All models of this make (1996–…)
Infiniti (all models)
  • All models of this make (1996–…)
Isuzu (all models)
  • All models of this make (1996–…)
Jaguar (all models)
  • All models of this make (1996–…)
Jeep (all models)
  • All models of this make (1996–…)
Kia (all models)
  • All models of this make (1996–…)
Lamborghini (all models)
  • All models of this make (1996–…)
Lancia (all models)
  • All models of this make (2001–…) ✎ EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Land Rover (all models)
  • All models of this make (1996–…)
Lexus (all models)
  • All models of this make (1996–…)
Lincoln (all models)
  • All models of this make (1996–…)
Lotus (all models)
  • All models of this make (1996–…)
MG (all models)
  • All models of this make (2001–…) ✎ EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Maserati (all models)
  • All models of this make (1996–…)
Mazda (all models)
  • All models of this make (1996–…)
McLaren (all models)
  • All models of this make (1996–…)
Mercedes-Benz (all models)
  • All models of this make (1996–…)
Mercury (all models)
  • All models of this make (1996–…)
Mini (all models)
  • All models of this make (1996–…)
Mitsubishi (all models)
  • All models of this make (1996–…)
Nissan (all models)
  • All models of this make (1996–…)
Oldsmobile (all models)
  • All models of this make (1996–…)
Opel (all models)
  • All models of this make (2001–…) ✎ EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Peugeot (all models)
  • All models of this make (2001–…) ✎ EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Plymouth (all models)
  • All models of this make (1996–…)
Pontiac (all models)
  • All models of this make (1996–…)
Porsche (all models)
  • All models of this make (1996–…)
RAM (all models)
  • All models of this make (1996–…)
Ravon (all models)
  • All models of this make (2001–…) ✎ EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Renault (all models)
  • All models of this make (2001–…) ✎ EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Rolls-Royce (all models)
  • All models of this make (1996–…)
Rover (all models)
  • All models of this make (2001–…) ✎ EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
SEAT (all models)
  • All models of this make (2001–…) ✎ EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Saab (all models)
  • All models of this make (1996–…)
Saturn (all models)
  • All models of this make (1996–…)
Scion (all models)
  • All models of this make (1996–…)
Skoda (all models)
  • All models of this make (2001–…) ✎ EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Smart (all models)
  • All models of this make (1996–…)
SsangYong (all models)
  • All models of this make (2001–…) ✎ EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Subaru (all models)
  • All models of this make (1996–…)
Suzuki (all models)
  • All models of this make (1996–…)
Toyota (all models)
  • All models of this make (1996–…)
Vauxhall (all models)
  • All models of this make (2001–…) ✎ EU-market vehicles: OBD2/EOBD from 2001 (petrol) and 2004 (diesel).
Volkswagen (all models)
  • All models of this make (1996–…)
Volvo (all models)
  • All models of this make (1996–…)

Where to buy

There's still room here for your shop. If you're a seller and would like to include a link to your shop here, please get in touch with us.
We also accept links to online shops on platforms such as Amazon, eBay, Etsy, AliExpress, Walmart Marketplace, etc.

About the manufacturer: Udiag

UDIAG TECH CO., LTD. is an automotive diagnostic equipment manufacturer based in Shenzhen, China, with more than 13 years of experience in the automotive aftermarket. The company designs and sells OE-level diagnostic tablets (X-95 Pro, X-60, X-50), handheld scan tools (A-series, X-20 TPMS scanner, M200 motorcycle scanner), OBDII code readers (CR-series), TPMS tools, automotive oscilloscopes and ADAS calibration systems, as well as smoke leak detectors, video scopes and battery testers. UDIAG has a team of over 50 software engineers, invests more than 20% of annual revenue in R&D, serves customers in over 50 countries and regions, and its products carry ISO 9001, CE, FCC and RoHS certifications. Website: www.udiagtech.com

https://www.udiagtech.com/ ↗

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