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Unlike other models, a bidirectional scan tool has the capability of both sending commands and receiving information. In other words, this advanced device can allow you to have more flexibility and versatility when working with a vehicle. It is possible to do almost everything with your vehicle control module, such as reprogramming, reinitialization, system testing, inspecting, actuator examination, as well as functional testing. As a result, you would save a lot of time and effort when diagnosing or repairing your car. The problem is that there is a wide range of options available in the market with different features.

So, it can be hard to make an informed decision, especially when you are not tech-savvy. Fortunately, we have done the hard work for you. After a lot of researching and comparing, our team has compiled the following list of top 10 bidirectional scan tools. Check it out and pick the best one for you.


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10, Ancel FX6000 Diagnostic Scan Tool Coding and Programming

ANCEL FX6000 All System OBD2 Diagnostic Scan Tool with 11 OBD Connectors Automotive Code Scanner for Check Engine ABS SRS Transmission DPF TPMS EPB IMMO ECU Programming & Coding

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The FX6000 bidirectional scan tool by Ancel can be useful in many situations. Featuring an easy-to-use design, you only need to plug it into the port without the additional weight of a charger or a battery. In addition, the unit features a well-designed HD screen that is large and clear. This display has thousands of DTC tips to provide high-quality performances. You can use this scan tool to diagnose both diesel and gasoline engines. Several features would be compatible with professional models, such as IMMO, TPMS, EPB, or ABS/SRS. It also allows you to clear and read error codes, view live streaming data, and work with ECU programming and coding. More importantly, the device can be used with a wide range of car brands and models on the market.

Reasons to buy-

  • Advanced ECU programming and coding
  • Comprehensive diagnostic functions
  • Available in multiple languages
  • Extensive coverage to meet different needs


9, Launch X431 Full System Pro Mini BiDirectional Scan Tool

LAUNCH X431 Pro Mini Bi-Directional Scanner Full System Scan Tool with ECU Coding, Key IMMO,20 Reset Functions,Full Connector Kit,Free Update + TPMS Activation Tool EL-50448 As Gift TOP 10 BEST BIDIRECTIONAL SCAN TOOLS IN 2024 REVIEWS

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The X432 pro mini scan tool by Launch comes with advanced ECU coding that you cannot find in many aftermarket diagnostic tools. It can be used to activate new ECU on some special models without costly original equipment. Thus, you would reprogram adaptive data after replacements or repairs. The bi-directional scan control can both report and send fault codes to activate various systems for testing. With the remote diagnosis, you would find out issues of your car even when you are thousands of miles away from it. More importantly, it supports a wide range of car models to give you more flexibility.

Reasons to buy-

  • Provide advanced ECU coding
  • Bi-directional control to receive and send data
  • Remote diagnosis for more flexibility
  • Up to 20 reset functions


8, Launch X431 V Pro Full System BiDirectional Scan Tool

LAUNCH X431 V PRO Bi-Directional Scan Tool OBD2 Scanner Full System Scanner with ECU Coding,Actuation Test,Key IMMO,Remote Diagnostic,20 Reset Functions,Free Update,Full Connector Kit + EL-50448 Tool

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With coverage of more than 10,000 car models, the Launch X431 V Pro is all that you need to diagnose and repair your vehicle. The device is able to access to all subsystems and systems. Many special functions are supported, such as SUS reset, key programming, ECU coding, and more. They are time-saving, super-fast, powerful, and reliable. The built-in screen is large and clear to help you read the information clearly. Also, the operation is very simple and user-friendly.

Reasons to buy-

  • Access to all subsystems and systems
  • Convenient and advanced diagnostic tool
  • Cover more than 10,000 car models
  • High-resolution screen

7, Launch X431 IV Diagun BiDirectional Scan Tool Full System

LAUNCH X431 DIAGUN IV Bi-Directional Full System Scan Tool Free Update -5 Years Warranty

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The X431 IV scan tool by Launch features a quad-core 1.1 GHz processor to deliver powerful performances. It can give your vehicle a full detection by reading and clearing DTCs as well as a view data stream for every system, from wiper and transmission to engine and SRS. The device can diagnose a wide range of car models. In addition, there is a wide range of languages supported. You can easily update or download the diagnosis software anywhere and anytime.

Reasons to buy-

  • Support multiple languages and wide coverage
  • Report and generate a vehicle health report
  • Many add-on features and functions
  • Simple to operate and use

6, Launch X431 V+ Bi-Directional Diagnostic Scan Tool Full System

LAUNCH X431 V+ (Upgrade Version of X431 V PRO) Bi-Directional Key ECU Coding Actuation Test Diagnostic Scan Tool with 20 Reset Functions, BMS, ABS Bleeding TPMS Reset Full System 2 Years Free Update

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Launch X431 V+ is the latest upgrade version of the X431 V/Pro. It features fully updated software and powerful design of vehicle coverage. Whether you are a DIYer or a professional mechanic, you might be amazed by its extensive coverage with more than 100 models. There are also multiple languages supported by this device. The whole unit comes with a waterproof, greaseproof, and dustproof construction with a protective rubber boot to prevent the screen from any damages. In addition, the activation test can access all components and subsystem tests, as well as receive all output elements.

Reasons to buy-

  • All-system diagnostic for more than 10,000 car models
  • Provide up to 20 reset functions
  • ECU coding to help with major repair and maintenance tasks
  • Up to 32 GB storage capacity


5, Innova Pro 5610 Professional Diagnostic Scanner Bi-Directional Test

INNOVA CarScan Pro 5610 + RepairSolutions2 App - Professional OBD2 Car Diagnostic Scanner - Code Reader Tool - Bi-Directional Test & Enhanced Data

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The 5610 model is probably the most feature-rich bidirectional scan tool in the line. It is a great option for both professional and DIY users. With the free RepairSolutions2 app, you can get all of the necessary information in recalls, technical service bulletins, maintenance schedules, and more. Also, bi-directional control can send commands to the car to check functionality and actuators. This tool can even improve data stream so that you would view live data in advanced systems like engine, transmission, SRS, and ABS. Last but not least, the light indicators will allow you to know when there is a problem with your vehicle.

Reasons to buy-

  • Can be used for hybrids, SUVs, light truck, and other vehicles
  • Professional-grade features and functions
  • Include a free mobile app
  • User-friendly and intuitive interface

4, Launch X431 Pros Full System Bi-Directional Scan Tool

LAUNCH X431 PROS Mini Bi-Directional Scan Tool Full System Automotive Diagnostic Scanner Key Injector ECU Coding TPMS ABS Bleeding with WiFi Bluetooth 2 Years Free Update

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Are you looking for a powerful and versatile bi-directional scan tool? Then the Launch X431 pro is all that you need. It comes with Active Test to command specific tests or request information. Thanks to Wi-Fi connection, you would update software only with a single click. This can ensure you have the latest information about your car model on the market. In addition, the unit supports different features, such as ECU coding, auto VIN detects, SAS reset, gear reset, BMS reset, oil reset, throttle matching, and more. Also, bi-directional technology allows you to implement full system tests, maintenance tests, as well as automated system tests.

Reasons to buy-

  • Quick and simple operation
  • Update software easily with Wi-Fi connection
  • Support up to 150 car models
  • Feature many technical services and hardware assistance

3, Launch X432 Bi-Directional ECU Bi-Directional Scan Tool

LAUNCH X431 V Pro Bi-Directional Full System Scan Tool for ECU Coding,20 Most Used Reset, Key Program, Matching, Remote Diagnostic, Print Health Report, Free Update,Full Connector Kit- EL-50448 Gift

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This is another superior bi-directional scan tool from Launch. The X432 model can perform many tests, such as the emissions leak, cycling on or off the A/C clutch, or turning on or off the fuel pump. With professional-grade diagnostics, this tool offers a complete system for drivers to find out possible issues. Another benefit is the access to HD compatibility and Bluetooth connection so that you do not need to connect your car with a cable. Along with many special reset features like oil reset, TPMS reset, BMS, EPD, or SAS, the tool can help you access to the ECUs safely. More than just an auto scanner, the bi-directional technology allows it to start the repair.

Reasons to buy-

  • Large memory space to store data and error codes
  • Long-lasting battery to work in an extended period
  • Analyze and diagnose quickly and precisely
  • Feature many functions and benefits

2, Autel Maxisys Diagnostic Tool MS906BT ECU Scan Tool

Autel Maxisys MS906BT Diagnostic Tool with OE-Level, ECU Coding Capability OBD2 Scanner, 22 Service Including Oil Reset Service, TPMS, EPB, ABS, SRS, SAS Scan Tool Advance Ver. of DS808/MS906/MK808

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The latest Autel Maxisys MS906BT scan tool is a powerful update. It offers specific component and subsystem tests. Featuring a compact and portable design, you can easily carry it around. The battery can last for a long period. This device is designed with Wi-Fi access that does not require any cords. The rechargeable lithium battery can operate in up to 14 consecutive hours. With added features like auxiliary ports, audio ports, USB port, or the Android operating system, you can even use it as a tablet. There is a wide range of features, such as Smart AutoVIN, Active testing, Live data streaming, and ECU coding. Last but not least, it supports more than 80 car models all over the world.

Reasons to buy-

  • Compatible with most car models and brands
  • Wireless connectivity for better mobility
  • Multitasking design to manage easily
  • There are up to 22 services and functions

1, OTC 3893 Professional Encore Diagnostic Bi-Directional Scan Tool

OTC 3893 Encore Professional WI-FI Enabled Diagnostic Tool Kit

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For the price you are paying, it can be hard to find a scan tool that can beat the OTC 3893. This set comes with many different tools and parts, including a carrying case, power adapter, USB cable, and OBD2 cable. You can use this powerful tool for almost diagnostic tasks. All features and functions are simple to use, even when you are a beginner. More importantly, the manual guide can show you each step to start. With built-in Wi-Fi and Bluetooth, you can search for your vehicle model and read relevant information. In fact, this is the first device that integrates programs during each repairing session. It supports a wide range of options and languages to meet various needs.

Reasons to buy-

  • Up to 30 years of coverage
  • Built-in repair data with millions of solutions
  • Simple to operate and use
  • Large and clear display with detailed information

-Buying Guides for bi-directional Scan Tools

It can be challenging to choose the right bi-directional scan tool for your needs. So, whether you are a beginner or a professional, keep in mind to take into consideration the following factors:

– Connector

In general, most bidirectional scan tools have connectors with a 16-pin plug, which is often delicate and thin. When they get damaged, the unit cannot operate anymore. A few scanner cables feature plastic protectors around these pins to protect them. This is a great feature to consider. You should also need to be very careful when storing a scan tool to prevent unintentional damages.

– I/M readiness

If you are residing in an area in which your car needs frequent inspections, then it is a good idea to purchase a scan tool with the I/M feature. I/M stands for inspection and maintenance. It is able to measure the systems of your vehicle to check whether they are well prepared for inspections testing.

– Apps

Many manufacturers create free apps to accompany the bi-directional scan tools. With these apps, you can store all information and error codes on a tablet or phone. In addition, it can provide you helpful information about the problems with your vehicle, based on the stored data.

– Display screen

A handheld scan tool with a sharp, large screen would display a lot of information. If you are a professional, then a model that can show both the troubleshooting information and error code should be taken into consideration.

– Live data

A bidirectional scan tool with the capability of measuring live data can be a good option when you need to measure the system while driving your vehicle. Other models only operate when the engine is not operating.

– Storage

If you want to store the results of previous scans, then make sure to choose a model that features memory storage. This would be very useful to track errors when they occur in the future.

– VIN retrieval

Several bidirectional scan tools can show the VIN number of your car after scanning. By reading this information, you would match it with the one on your car paperwork, thus ensuring that nobody can change the VIN or intervene with the systems in your vehicle.

With a good bidirectional scan tool, you would easily troubleshoot any problems with your vehicle. The key is to take into consideration all of the important factors as well as your needs. After reading this guide, we believe that you can now understand what is important when shopping. Consider carefully and make wise decisions.

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