Top 10 Best Bidirectional Scan Tool 2023 – Review & Guide

• 2022 Model ✅Faster, More Popular,Wider Regional vehicle coverage than X431 V+】LAUNCH X431 V (Pro) 4.
• Bi-Directional + ECU Coding+Over 31 Reset Services+ Active Test + Adaptation+ Initialization + Matching 】: Besides actuate solenoids and actuators for active testing.
• 2022 Better Hardware 】：Launch X431 V pro4.
• 5 Years Warranty + 2 YEARS Free Update +Almost OBDI&OBDII Connectors and Cables Included + Covering 99.
• Real Active Test】Launch x431 v 4.
• FULL LOCALIZED 24 Languages FREE TO USE? YES ! choose your native language without encountering any sort of language barrier– English, French, Spanish, German, Russian, Korean, Japanese, Portuguese, Italian, Polish, Dutch, Hungarian, Finnish, Simplified, Czech, Turkish, Greek, Arabic, Danish Persian, Romanian, Serbian, Swedish, Chinese Traditional.
• Support Wifi Printer/ Videoscope/ TSGUN/ X431 PRO G Optional functions 】✔️Videoscop: Check unseen parts of the engine, fuel tank system, etc.
• 2022 Added Function 】👍 Cylinder Balance test 👍 Cylinder leakage test 👍 Cylinder Pressure variations 👍 Cylinder Cut-out test.
• Covering 99.
• Born To Be Bi-Directional】Launch x431 v pro 4.

• 2022 New Release All-in-one Scanner – D8➤: As XTOOL 2022 new release automotive scanner targeted for professional mechanics, D8 is equipped with advanced ECU Coding, active test, OE-Level full systems diagnostic, 31+ special functions, which cover more than 85+ brand vehicles models, powerful dealership level functions can fully meet your needs.
• Advanced ECU Coding For Personalized Settings ➤ After you change the bad components or certain parts, you need to use this function to make a new code and recognize the new components.
• OE-Level All Systems Diagnostic & Active Test➤XTOOL D8 professional diagnostic scan tool can access all available vehicle modules for read/clear DTCs, view lives data, freeze frame, ECU info and perform bi-directional control to command the components to pinpoint faults, such as Fuel Trim Reset, Fuel Composition Reset, VGT Turbo Calibration, Window/Mirror/Door Lock Test, Turn on/off the radiator fan, Modulate the throttle, Turn on/off the lights, sound horn, etc.
• 31+ Special Functions for Mechanics/Workshop➤ XTOOL D8 diagnostic tool cover almost all available Services including Oil Reset, EPB, SAS, PDF, BMS Reset, ABS bleeding, Throttle Reset, VGT Learn, Air Suspension, Injector Coding, Key Programming, Power Balance, Headlight, Transmission Adaptation, Fuel Trim Learn, Language Change, A/F Settings, Stop/Start Reset, Crankshaft Sensor Relearn, TPMS, etc.
• Powerful Hardware Configuration ➤ D8 auto scan tool possesses with Android system, Quad-Core 1.
• Support CAN FD Protocol, Cover Newer Vehicles, 2021 New Release➤ D8 supports the diagnosis of vehicle models with CAN FD protocol, including the MY2020+ GM models.
• 2 Years Warranty + 3 Years Free Update +14 Language + 24/7 Tech Support➤XTOOL D8 scanner provide 2 Years Warranty, 30-days return & replacement.

• Lifetime Free 28+ Most Popular Services】Mucar VO6 car scanner diagnostic for all cars is one of the most popular OBDII 2 scanners on the market.
• OE-level All Systems Diagnostic】 Mucar VO6 OBD2 scanner for cars provides OE-level diagnosis, applicable to 122 makes worldwide (1996 and newer).
• Bi-Directional Scan Tool】Mucar VO6 obd2 scanner bidirectional can send commands to the components to test the working status, without using vehicle control, you can actively test all components, such as Fuel Trim Reset, Fuel Composition Reset, fuel pump, and valves, wipers, window, door, sunroof, headlamps, etc.
• Complete OBD2 Test Mode】The affordable Mucar VO6 car diagnostic scan tool compared with the OBD2 scanner on the market, OBD2 functions have been fully upgraded.
• WiFi&Bluetooth Connection】 Mucar VO6 Bluetooth OBD2 scanner is the latest upgraded version of 2021.
• LIFE-TIME WORRY-FREE SERVICE】Mucar VO6 automotive code readers supported by a professional Mucar Customer Service Team & Engineer Team, provide lifetime technical support, a 90-day return or replacement policy, and 24/7 support.

• SAME AS MS906, UPGRADED OF MP808, DS808】 Featuring extensive OE-Level diagnostics coverage for all systems, comprehensive service functions, active tests, bi-directional control, ABS bleeding, etc, MP808K has the same software functions as Autel MS906.
• COMPREHENSIVE SERVICE FUNCTIONS】 MP808K diagnostic scanner comes with 30+ service Options like Oil Reset, ABS brake bleed, EPB, SAS, PDF, BMS, Suspension, Key Fob Coding, Injector Coding, Power Balance, Turbo Calibration, VGT, Transmission Adaption, Throttle Adaptation, matching, etc.
• OE-LEVEL FULL SYSTEMS DIAGNOSTICS】Autel MP808K can access all systems on 80+ US, EU and Asian car makes to read and clear codes, view live data, and graphs, perform active tests and vehicle-specific service functions that previously only available in dealership scan tools that cost $1000 or more.
• EXTENSIVE VEHICLE COVERAGE】 MP808K professional diagnostic scanner tablet comes with extensive vehicle coverage for more than 80 US, Asian and EU car makes.
• AFTER-SALE & WARRANTY】 Autel MP808K automotive diagnostic scanner comes with 12 Months of Free Software Updates and is backed by 30 Days REPLACEMENT or FULL REFUND, 12 Months free from defects after-sales services & technical support by US-based seller Autel Direct, and Autel HQ.

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• 2022 Elite Version, Compare 2021, 2022 new year, launch x431 v add more OE-Level functions: AutoAuth for FCA SGW( for Chrysler, Dodge, Jeep, Alfa Romeo, and Fiat after 2017 and newer).
• What’s the difference between launch x431diagn v and another bidirectional scanner? AA: launch x431 diagun v is cheaper and more economic.
• All System Diagnostic Tool for 10000+ Car Models: Launch x431 diagun v car diagnostic tool is the upgrade version of launch x431 diagun iv, it can work for all systems of the cars such as Engine, ABS, SRS, Transmission, Brake system, Emission system, Wiper system, Body, Power strain, Chassis, etc.
• Bidirectional Control (Active Test) + ECU Coding + Initialization+ Adaptation+ Matching+ Data Record&Print: X431 Diagun v is a Bidirectional scan tool that supports ECU coding, remote diagnostic, diagnostic feedback, relearn cam/crank sensor data stream record and playback, auto-generate vehicle health report, vehicle report share, and print.
• Key Programming + 31 Reset Service + 32G RAM + 5 Years Warranty+Youtube influencer Mechanic Strongly Recommend: The automotive car scanner diagun v support key programming if you have a pin code, and the upgraded diagun iv support Injector Coding, Oil Reset Service, IMMO, SAS, EPB Reset, Battery Register, ABS Bleeding, Electronic Throttle Reset, PDF, TPMS Reset, Gear Learning.

• Bi-Directional Control/Active Tests/Component Tests ▶ XTOOL D7 is a bidirectional OBDII scanner, that allows sending the command directly from this 7-inch tablet to the vehicle ECU to perform active / component tests, like EVAP test, A/C Clutch on/off, Fuel Injectors, Cycling ABS Pump Motor, window, door, sunroof, etc.
• OE-Level Full System Diagnostics ▶ XTOOL D7 is an OE-level full system diagnostic scanner as it can scan ECUs in-vehicle systems and subsystems, read and clear codes, view live data stream of various sensors and graph them, retrieves freeze frame, perform active tests to check the work status of modules, providing you with a Dealership-Level only diagnosis, getting the accurate and in-depth results across all automotive systems.
• 28+ Special Functions ▶ XTOOL D7 car diagnostic tablet has packed the all key special functions of an automotive diagnostic scanner.
• AutoVin & Auto Scan & 85+ Brands, 10000+ Cars Coverage & 16 Languages ▶ XTOOL D7 features with AutoVin function to easily read the vehicle identification number.
• 2022 New Release & Most Cost-Efficient ▶ D7 is the latest addition to the XTOOL product line of automotive diagnostic tablets, it covers the functions that the advanced diagnostic tool has, such as bi-directional control, IMMO, OE Full Diagnosis, etc.
• 2-Year Warranty & 3-Year Free Updates & 24/7 Tech Support ▶ XTOOL D7 auto diagnostic scanner covers for 2-Year US warranty, 3-Year free updates, and promises 30 days risk-free return and replacement.

• 2021 New Version👍Same Functions as Autel MP808K/MS906】: Autel MP808 2021 new added more OE-Level Functions👉Guided Functions 👉Component Matching👉Online Account Login Service 👉Power Balance 👉Flash Hidden Functions👉Actuator Test👉Tons of Actuator Test👉Key Programming ( All the function above is car-specific）.
• Bi-directional Control + ALL System Diagnosis】Autel MP808 automotive scanner can actuate solenoids and actuators for active testing, and send commands to many systems/components to test their working status, without using the vehicle controls.
• Best Hardware & 30+ Growing Reset Functions】✅Android 4.
• Wider Vehicle Coverage for Repairing Shops & Diyers】Autel MP808 automotive scanner reads & erases codes, views live data, and retrieves ECU version information.
• Mechanics with 50 years of experience Highly Recommended】Autel MP808 diagnostic tool automatically identify vehicle information and completes rapid diagnosis and Quick ALL-MODULE Health Report Generation, greatly increasing productivity.
• More User-friendly Functions】The Autel scanner MP808 stands apart from others in its sophisticated and user-friendly nature.

• All Vehicle Systems Bluetooth OBD2 Scanner】The Thinkdiag OBD2 Scanner supports all Systems diagnostic functions, it can read/clear fault codes, read live data, read control module information, actuation tests, and maintenance functions for ECM, BCM, SRS, TCM, BMS, TPMS, SAS, A/C system, etc… It can works with most car models after the 1996 year of 120+ car brand, All software have 1-year free update.
• 15+ Maintenance Functions Adaption / Initialization/ Matching】Thinkdiag OBD2 Scanner has 15 reset functions menu and more maintenance functions under the exact car menu: Service Reset, ABS Bleeding, Injector coding, SAS Reset, TPMS Reset, DPF Reset, BMS Reset, ETS Reset, AFS Reset, EGR Adaptation, SUNROOF, SEAT Calibration, Key Coding, etc.
• Bi-Directional Test + ECU Coding】Thinkdiag actuates solenoids and actuators for active testing, and send commands to systems/components to test their working status, without using the vehicle controls.
• Intelligent Diagnostic Tool with Autovin】Thinkdiag Bluetooth OBD2 scanner makes your smart device become a professional vehicle diagnostic tool, it is compatible with android and ios systems.
• Prompt Customer Service Via Amazon Message】If you have any problems please contact us via Amazon message, and we will offer prompt help.
• Activation Process】You need to activate the product to use the full software and functions for a one-year free update.
• Diagnostic Tool Subscription Fee】After one year free update, per reset service/$49.
• User Tips】For the 15 reset services the free update period is one year from the activated date.

• 30+ SERVICE FUNCTIONS】MP808K car diagnostic tablet scanner comes with 30+ service functions including Oil Reset, EPB Reset, SAS Calibration, PDF Regeneration, Battery Registration, Throttle Reset, ABS Bleed, Injector Coding, Power Balance, Key Coding, Suspension Calibration, EGR, VGT Turbo Calibration, Transmission Adaptation, Matchings, Headlamps, Window Door Roof, etc.
• Upgrade of MP808/DS808, Same as MS906】Autel MP808K support all OBD2-compliant vehicles and comes with extra adaptor kit for (Valued 150$) while Autel MP808 only support partial OBD2 vehicles.
• OE LEVEL ALL SYSTEMS DIAGNOSTICS】MP808K professional scan tool has the same diagnostic capabilities that are previously only available to the “dealership” tool.
• BI-DIRECTIONAL CONTROL + AUTO VIN + AUTO SCAN 】 Autel MP808K is a bi-directional scanner that can control various subsystems, parts & components like fuel pump, valves, wipers, window, door, sunroof, headlamps, etc to perform active tests to check its functionality.
• 1 YEAR FREE UPDATES & 1 YEAR WARRANTY & 24/7 WORRY-FREE SUPPORT】Autel MaxiPro MP808K auto scan tool comes with 1 YEAR FREE software updates, 1 Year Warranty, 30 Day Return Policy and 24/7 tech support.

• 2022 ELITE Version LAUNCH X431 DIAGUN 5 】+【 ADVANCED OE-LEVEL FUNCTIONS】LAUNCH X431 DIAGUN (5TH GENERATION) scan tool adds loads of OE-Level features as ➤Online Coding (compatible with VW, Audi, Skoda, Seat) ➤Setting & Changeover (AdBlue reset, unlock the engine after a collision, cancel ABS driving test, and more) for Benz ➤Modification for BMW ➤Offline Coding ➤Customization ➤Personalization, for worldwide vehicle brands, and keep growing.
• Bi-directional Control+ RESET + INITIATION + ADAPTATION + MATCHING + CODING】】LAUNCH X431 DIAGUN V 5th diagnostic scanner gives you what snap-on scanner offers.
• Wider Coverage & Multi-Language 】: LAUNCH X431 Diagun V 5th Generation automotive scanner can diagnose the electronic control system of prevailing vehicle models covering Asian, European, American, and China, up to 150 car brands, up to 10000 car models.
• One-Click WiFi Update & 2 (TWO Years Free update 】Download or update multiple vehicle diagnosis software anytime and anywhere freely just click “One Key Update”, No lP limited! LAUNCH also supports 2 Years of Free Software updates, after 2 years, you can continue to use this scan tool even with no updates.
• We Always Got Your Back 】We provides 【 5 YEARS WARRANTY 】and 2 YEARS FREE UPDATE.
• 2022 ELITE Version LAUNCH X431 DIAGUN 5 】+【 ADVANCED OE-LEVEL FUNCTIONS】LAUNCH X431 DIAGUN (5TH GENERATION) scan tool adds loads of OE-Level features as ➤Online Coding (compatible with VW, Audi, Skoda, Seat) ➤Setting & Changeover (AdBlue reset, unlock the engine after a collision, cancel ABS driving test, and more) for Benz ➤Modification for BMW ➤Offline Coding ➤Customization ➤Personalization, for worldwide vehicle brands, and keep growing.
• Born To Be Bi-Directional】Launch X431 Diagun V featuring Active-test (Two-Way communication), you can perform functional tests, actuator tests, inspection tests, and system tests,like: Injector Buzz Tests,Idle Speed Adjustment, Window/Mirror/Door Lock test, Fuel Pump on/off, Solenoid valve , Open Brakes tests,tank Ventilation, Switch cylinder correction off/on, EGR test, EVAP test, A/C Compressor Activation, Turn on the radiator fan, Modulate the throttle, cycling the a/c , clutch on and off, etc.
• 2022 Added Function 】👍 Cylinder Balance test 👍 Cylinder leakage test 👍 Cylinder Pressure variations 👍 Cylinder Cut-out test.
• Key Programming: Reset the Key, Relearn a key.