Which is the Best UDIAG Bi-Directional Scan Tool

Whether you plan on conducting maintenance or repairs at home or in an auto repair shop, a reliable Bi-Directional Scan Tool is an essential tool to have. The precision and accuracy of your work can greatly benefit from a dependable and accurate Bi-Directional Scan Tool.

With 10 years of experience as an internationally leading brand in automotive diagnostic products, UDIAG offers a range of exceptional products for various applications. In this article, we will delve into the features of UDIAG’s Bi-Directional scanners, including A100, A200, A300, A500, and A550.

1. What is a Bi-Directional Scan Tool

A Bi-Directional Scan Tool, also known as a Bi-Directional Diagnostic Tool, is an electronic device used for diagnosing and troubleshooting problems in a vehicle’s engine, transmission, and other systems. It allows two-way communication between the tool and the vehicle’s onboard computer, which enables the technician to perform various functions such as reading and clearing diagnostic trouble codes, performing system tests, calibrating systems, and resetting maintenance reminders.

Bi-Directional Scan Tools can also be used to program keys, perform software updates, and access advanced features that are not available with basic code readers. They are an essential tool for professional technicians and advanced DIYers who need to diagnose and repair complex automotive issues.

2. UDIAG Bi-Directional Scanners Comparison Chart

A550		OBDII 10 Test Modes Full Systems: Read Code, Clear Code, Data Stream, Freeze Frame Data, System Information 10+ Services: EPB, SAS, TBA/TPS, DPF, IMMO, TPMS, ABS Bleeding, Oil Reset, Injector Coding, etc. One Key I/M Readiness Red-Yellow-Green LED indicator Data Playback Print Data Lifetime Free Update
A500		Work with the latest 2022/2023 cars. Get access to all electronic systems, such as power train, chassis, body systems, etc. Perform bi-directional component actuation. Support advanced functions such as adaptations and control module coding. Key coding for several vehicles. Retrieves ECU information. Read and erase codes. Display freeze frame data and live data. Records and playbacks data-logs. Support the most commonly required service features, like Injector coding, brake deactivation, oil service reset, SAS, DPF regeneration, Gear Learning, ABS bleeding, etc. Ergonomic design will help you feel more comfortable and convenient to use.
A300		Access to engine, transmission, ABS and airbag systems. Support 6 special functions, such as EPB, SAS, TBA, SRS, TPMS, and ABS. Works on the latest 2022/2023 vehicle makes. Read and clear diagnostic trouble codes, retrieve vehicle information. Display freeze frame data, retrieve live data stream. All OBD II protocols, all 10 test modes and enhanced OBD II mode 6 support. Built-in DTC lookup. All the diagnostic result will be recorded in A300, which is prepared for reviewing history diagnostic recordings, and further identifying vehicle’s running conditions. The print data function allows to print DTC data recorded by connecting A300 to PC with the supplied USB cable, so can show the diagnostic result to the technician straightforwardly. Multilingual menu options.
A200		Cover more than 100 American, Asian, European and China vehicle makes. Work on both OBDI and OBDII cars, SUVs, minivans, light-duty trucks sold worldwide, including the latest models on many makes. Read and erase diagnostic trouble codes (DTC’s), read system information, displays freeze frame data and read live data. All OBD II protocols, all 10 test modes and enhanced OBD II mode 6 support. Support 40+ required special function, such as oil service reset, ABS, EPB, airbag, AT adaption, BCM/SIR setting, injector coding, battery configuration, DPF, IMMO, gear learning, etc. Identifies the vehicle you are testing rapidly and accurately on the basis of its VIN number. It shows live vehicle sensors data in text and graph format and allows you to focus on any suspicious or symptom specific data. Internet updatable via USB card reader. 3 inch LCD color display, clearly arranged keys, menu driven operation, and shortcuts together make this device extremely easy to use. Its ruggedized design and rubber sleeve resist impact and damage in the tough workshop environment.
A100		Provide professional diagnosis on over 100 makes in American, Asian and European. All OBD II protocols, all 10 test modes and enhanced OBD II mode 6 support. Access all available modules for the best diagnosis operations. Read and clear trouble codes, display freeze frame data and data stream, support active test, etc. Direct Access to 40+ required special function, such as oil service reset, ABS, EPB, airbag, AT adaption, BCM/SIR setting, injector coding, battery configuration, DPF, IMMO, gear learning, etc. Identifies the vehicle you are testing rapidly and accurately on the basis of its VIN number. It shows live vehicle sensors data in text and graph format and allows you to focus on any suspicious or symptom specific data. Displays 2 parameter graphs simultaneously and merge them into one coordinate. Print diagnostic reports via PC connection. Multilingual menu options－ (16 languages).

3. Recommendations

UDIAG’s Bi-Directional Scanners come in various levels, each with different features and functions to cater to different situations. Here are some recommendations for various applications:

• For vehicle owners or family use, the A100 or A200 is an economical choice. With OE-level diagnosis, you can perform various maintenance tasks or repairs and save money at the same time. These scanners offer free lifetime updates for one or a few brands of vehicles.
• For DIY enthusiasts or skilled mechanics, the A500 is an excellent helper. This scanner can work on almost all compatible vehicles, making it a one-stop-shop for all your maintenance needs. You won’t need to buy a separate diagnostic tool again.
• For auto repair shops, the A550 is a must-have professional tool. It can provide reliable diagnostic results rapidly, allowing mechanics to fix problems efficiently, saving time and resulting in more profitable business.

4. Conclusion

After reviewing the features and capabilities of UDIAG’s Bi-Directional Scan Tools, it is evident that the best tool for you depends on your specific needs and situation. Ultimately, by choosing the right UDIAG Bi-Directional Scan Tool, you can improve the precision and accuracy of your diagnostic and repair work, saving time and money in the long run.

If you have any question or other opinion about UDIAG products, we’d love to listen to your voice in the comment. Please feel free to click the WhatsApp button on the right to contact us at any time.