12 Best obd2 Scanners for Transmission, Compared

We compared 12 OBD2 scanners for transmission based on published specifications. Check system coverage, connectivity, and display size to find the right diagnostic tool for your needs.

RateWay Editorial Team Oct 29, 2026 6 min read

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Finding the best obd2 scanners for transmission requires checking specific diagnostic capabilities. We compared 12 models using only the specifications published on their listings. The BLCKTEC 460T OBD2 Scanner leads this group because it covers transmission systems and includes AutoVIN scanning for fast vehicle identification. This tool also offers twelve reset functions to handle common maintenance tasks. You can trust these picks because they are ranked strictly by their published technical data. This guide helps you decide which scanner matches your vehicle’s needs and your workflow.

Match your phone to the scanner connectivity

You must ensure your device matches the scanner’s connection type. The XTOOL A30D requires Android or iOS for wireless access. The Innova 5410 uses Bluetooth for app control. Other models like the TOPDON ArtiDiag500 rely on Wi-Fi. Check the connectivity spec before buying to avoid compatibility issues with your current smartphone.

#	Product	Best for
1	BLCKTEC 460T OBD2 Scanner Best overall	US/Canada OBD2 transmission and engine diagnostics
2	FOXWELL NT604 Elite 4-System Scanner Also great	reading codes for Engine, ABS, SRS, and Transmission
3	XTOOL A30D Black Wireless OBD2 Scanner Best budget	DIYers wanting mobile bi-directional diagnostics
4	Innova 5410 All-System Bluetooth Scanner Best bluetooth	wireless transmission diagnostics
5	TOPDON ArtiDiag500 5-inch OBD2 Scanner Best wi-fi	DIYers needing large screens and Wi-Fi updates
6	Thinkcar THINKSCAN 662 6.2-inch OBD2 Scanner Best premium	bidirectional transmission and engine diagnostics
7	XTOOL D5S 5.45-inch OBD2 Scanner Also great	DIYers needing transmission resets and clear screen data
8	TOPDON AD600S 5-inch SRS Scanner Also great	DIYers needing transmission diagnostics and a large screen
9	FOXWELL NT716 5.5" Touchscreen Scanner Also great	DIYers needing transmission and ABS diagnostics
10	Thinkcar THINKSCAN 662 6.2" Scanner Also great	mechanics needing bidirectional transmission tests
11	ANCEL FX6000 6.2-inch SRS Scanner Also great	DIYers needing active tests and 15 resets
12	ANCEL FX2000 Plus OBD2 Scanner Also great	basic transmission and system code reading

The best fit for you

You need US/Canada transmission and engine diagnostics – BLCKTEC 460T OBD2 Scanner – It covers transmission and engine systems with AutoVIN scanning.
You want wireless transmission diagnostics via an app – Innova 5410 All-System Bluetooth Scanner – It uses Bluetooth connectivity for app-guided transmission repairs.
You need a large screen for transmission diagnostics – Thinkcar THINKSCAN 662 6.2-inch OBD2 Scanner – It features a 6.2-inch display for active tests.
You want mobile bi-directional transmission diagnostics – XTOOL A30D Black Wireless OBD2 Scanner – It offers wireless bi-directional controls for transmission work.

1Best overall

BLCKTEC 460T OBD2 Scanner

Best for: US/Canada OBD2 transmission and engine diagnostics

System Coverage: Check Engine, ABS, SRS, Transmission, TPMS
Reset Functions: 12+
Software Updates: Lifetime free
Recommended Use: Cars
Diagnostic Functions: AutoVIN
Dimensions: 7.75 × 1.5 × 4.4 inches

Check price on Amazon

The BLCKTEC 460T covers Engine, Transmission, ABS, and SRS systems. It includes 12+ reset services like Oil and EPB. The device features AutoVIN and AutoScan for quick diagnostics. It displays real-time live data and freeze frame info. You get lifetime free software updates and a free app. It works on OBD2 vehicles from 1996 onward in the USA and Canada.

Pros

Covers Engine, Transmission, ABS, and SRS systems
Includes 12+ reset functions including Oil and EPB
Features AutoVIN and AutoScan for faster diagnosis
Provides lifetime free software updates

Cons

Limited to USA and Canada vehicle compatibility
Not all functions available on every car model
Physical dimensions are 7.75 by 4.4 by 1.5 inches

Good fit if

You need transmission and engine diagnostics
You want 12+ reset services
You drive a US or Canadian OBD2 vehicle

Skip if

You drive a vehicle outside the USA or Canada
You need bidirectional control for all systems
You require support for pre-1996 vehicles

Verdict: The BLCKTEC 460T OBD2 Scanner suits US and Canadian drivers needing transmission and engine diagnostics with 12+ reset services. It offers fast AutoVIN scanning and lifetime updates for reliable home or shop use.

2Also great

FOXWELL NT604 Elite 4-System Scanner

Best for: reading codes for Engine, ABS, SRS, and Transmission

System Coverage: Check Engine, ABS, SRS, Transmission
Software Updates: Lifetime
Recommended Use: Cars & Trucks
Diagnostic Functions: Live Data
Dimensions: 7.68 × 3.54 × 1.18 inches

Check price on Amazon

The FOXWELL NT604 Elite is a 2026 version scanner for cars and trucks. It covers Engine, ABS, SRS, and Transmission systems. You get live data, AUTOVIN detection, and lifetime updates. It includes a solid protective case. This tool suits you if you want to read codes without extra software fees. It does not perform maintenance resets.

Pros

Covers Engine, ABS, SRS, and Transmission systems
Includes lifetime software updates
Features AUTOVIN for rapid vehicle identification
Comes with a solid protective case

Cons

Does not support maintenance functions like oil reset or battery registration
Cannot clear crash or collision data for the SRS system

Good fit if

You need to check Engine, ABS, SRS, and Transmission codes
You want a device with lifetime updates included
You prefer a scanner with a solid protective case

Skip if

You require bidirectional control or active tests
You need to perform service functions like oil reset
You want to clear crash data from the SRS system

Verdict: The FOXWELL NT604 Elite OBD2 Scanner fits owners who need thorough code reading for Engine, ABS, SRS, and Transmission systems without paying for extra software updates.

3Best budget

XTOOL A30D Black Wireless OBD2 Scanner

Best for: DIYers wanting mobile bi-directional diagnostics

System Coverage: All Systems, ABS, SRS, Transmission
Reset Functions: 19
Protocol Support: CAN FD, FCA AutoAuth
Screen Size: Smartphone screen
Software Updates: Lifetime
Connectivity: Wireless

Check price on Amazon

The XTOOL A30D is a wireless diagnostic tool that uses your smartphone screen for data display. It covers all major vehicle systems, including transmission, ABS, and SRS. The unit offers 19 reset functions and bi-directional control to test components actively. It supports lifetime software updates and connects via Bluetooth up to 33 feet. This scanner suits DIYers who prefer mobile interfaces over dedicated handheld displays.

Pros

19 reset functions for routine maintenance
Bi-directional control for active component testing
Lifetime software updates included
Wireless connection up to 33 feet

Cons

Requires a separate smartphone for display
2-year warranty is shorter than typical industry standards

Good fit if

You want bi-directional testing without a subscription
You prefer using your phone as the interface
You need transmission and all-system coverage

Skip if

You need a dedicated handheld device with a built-in screen
You require a longer warranty period
You do not have a compatible Android or iOS device

Verdict: The XTOOL A30D Wireless OBD2 Scanner fits users who value mobile convenience and deep diagnostic control. It is ideal for DIY mechanics who already own a compatible smartphone and want to avoid recurring subscription fees.

4Best bluetooth

Innova 5410 All-System Bluetooth Scanner

Best for: wireless transmission diagnostics

System Coverage: All Systems, Check Engine, ABS, SRS, Transmission
Connectivity: Bluetooth
Control Method: App Control
Recommended Use: Cars & Trucks
Features: Battery Repair
Dimensions: 6 × 3.3 × 1 inches

Check price on Amazon

The Innova 5410 is a handheld OBD2 scanner that connects via Bluetooth and controls through an app. It covers all systems, including transmission, ABS, SRS, and engine diagnostics. The device displays live sensor data such as RPM and fuel trims. It is designed for cars and trucks from 1996 and newer. You get verified fixes through the RepairSolutions2 app without subscription fees.

Pros

Bluetooth connectivity for wireless operation
All-system coverage including transmission
Live data viewing for RPM and sensors
App-based control via RepairSolutions2

Cons

Requires a smartphone app for full operation
Not compatible with OBD1 vehicles without extra connectors

Good fit if

You want wireless Bluetooth scanning
You need transmission system diagnostics
You prefer app-based guidance

Skip if

You need a standalone screen device
You drive a pre-1996 vehicle
You want built-in display controls

Verdict: Innova 5410 Bluetooth OBD2 Scanner suits users who want wireless transmission diagnostics and app-guided repairs. It is ideal for modern cars and trucks needing all-system coverage without subscription fees.

5Best wi-fi

TOPDON ArtiDiag500 5-inch OBD2 Scanner

Best for: DIYers needing large screens and Wi-Fi updates

System Coverage: Check Engine, ABS, SRS, Transmission, TPMS
Reset Functions: 6
Protocol Support: CAN FD
Screen Size: 5-inch
Software Updates: Lifetime
Connectivity: Wi-Fi

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The TOPDON ArtiDiag500 is a dedicated OBD2 scanner featuring a 5-inch touchscreen and Wi-Fi connectivity for software updates. It covers Engine, Transmission, ABS, and SRS systems, making it suitable for transmission diagnostics. The device includes six reset functions and supports CAN FD protocols for modern vehicles. Its 3350mAh battery and 2GB RAM provide stable performance for DIY users needing reliable data stream visualization.

Pros

Wi-Fi connectivity for seamless software updates
5-inch touchscreen with physical buttons
Covers Engine, Transmission, ABS, and SRS systems
Includes 6 reset functions for maintenance
Supports CAN FD protocols for newer cars

Cons

Fewer reset functions than competitors offering 15 or 16 resets
Heavier build at 1.2 pounds compared to lighter handhelds
Larger physical dimensions at 10.2 x 8.3 x 2.4 inches

Good fit if

You need Wi-Fi updates for lifetime software support
You want a large 5-inch screen for easy data reading
You require transmission system diagnostics alongside engine codes

Skip if

You prefer a compact device under 1 pound
You need bidirectional controls for active tests
You want more than 6 reset functions

Verdict: TOPDON ArtiDiag500 5-inch Wi-Fi Scanner fits DIYers who prioritize screen size and wireless updates over advanced bidirectional controls. It is ideal for users who need reliable transmission diagnostics with a stable, large-display interface.

6Best premium

Thinkcar THINKSCAN 662 6.2-inch OBD2 Scanner

Best for: bidirectional transmission and engine diagnostics

System Coverage: Check Engine, ABS, SRS, Transmission
Reset Functions: 12
Protocol Support: CAN FD
Screen Size: 6.2-inch
Software Updates: Lifetime
Color: Black

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The Thinkcar THINKSCAN 662 is a 6.2-inch OBD2 scanner with bidirectional control and 12 reset functions. It covers ECM, TCM, ABS, and SRS systems. The device features a 4-core 1.8GHz CPU and 4150mAh battery. It supports CAN FD and FCA AutoAuth. This tool suits DIY enthusiasts and small repair shops needing fast diagnostics and active tests.

Pros

6.2-inch HD touch screen with 4-core 1.8GHz CPU
Bidirectional active test for ABS, fuel injectors, and throttle
12 reset functions including oil, BMS, and steering angle
4150mAh battery for extended use
Lifetime free software updates via Wi-Fi

Cons

Fewer reset functions (12) compared to competitors offering 15 or 16
Limited to 4 system coverage (ECM, TCM, ABS, SRS) versus all-system models
Requires separate registration and payment for FCA AutoAuth access

Good fit if

You need bidirectional active tests for transmission and engine components
You want a large 6.2-inch screen for easy data reading
You prefer a device with lifetime free software updates

Skip if

You require all-system coverage beyond ECM, TCM, ABS, and SRS
You need 15 or more reset functions without extra costs
You want FCA AutoAuth included without separate registration fees

Verdict: The Thinkcar THINKSCAN 662 6.2-inch Scanner fits buyers who prioritize bidirectional active tests and a large display for transmission diagnostics. It is less suitable if you need broader system coverage or more reset functions.

7Also great

XTOOL D5S 5.45-inch OBD2 Scanner

Best for: DIYers needing transmission resets and clear screen data

System Coverage: Check Engine, ABS, SRS, Transmission
Reset Functions: 16
Protocol Support: CAN FD
Screen Size: 5.45-inch
Software Updates: Lifetime free
Color: Black

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The XTOOL D5S is a 5.45-inch touchscreen scanner covering Engine, ABS, SRS, and Transmission systems. It offers 16 reset functions, including EPB and throttle relearn, for routine maintenance. The device supports CAN FD protocol and includes lifetime free software updates. It provides live data graphs and voltage monitoring. This tool suits DIYers and home mechanics who need broad system access and clear navigation for vehicle diagnostics.

Pros

5.45-inch high-resolution touchscreen for clear data viewing
16 reset functions including EPB and throttle relearn
Covers Engine, ABS, SRS, and Transmission systems
Lifetime free software updates via WiFi
Supports CAN FD protocol for modern vehicles

Cons

Covers only four main systems, while competitors cover more
Limited to 16 reset functions compared to higher counts on other tools

Good fit if

You need transmission diagnostics alongside standard engine and safety system checks
You want a device with a large, readable touchscreen for detailed data
You prefer lifetime free software updates without subscription fees

Skip if

You require bidirectional control capabilities for active tests
You need coverage for more than four vehicle systems
You want more than 16 specific reset functions

Verdict: The XTOOL D5S 5.45-inch OBD2 Scanner fits DIYers who prioritize a large display and essential transmission resets over advanced bidirectional features or broader system coverage.

8Also great

TOPDON AD600S 5-inch SRS Scanner

Best for: DIYers needing transmission diagnostics and a large screen

System Coverage: Check Engine, ABS, SRS, Transmission, TPMS
Reset Functions: 9
Protocol Support: CAN-FD
Screen Size: 5 inches
Software Updates: Lifetime
Dimensions: 8.7 × 1.46 × 5.23 inches

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The TOPDON AD600S is a diagnostic tool with a 5-inch touchscreen and Android 11. It covers Engine, ABS, Transmission, and SRS systems. You get nine reset functions, including oil and brake service. It supports CAN-FD protocols and offers lifetime software updates. This scanner suits DIYers who want broad brand coverage and live data visualization on a responsive display.

Pros

5-inch touchscreen with Android 11 for easy navigation
Lifetime free software updates via Wi-Fi
Nine essential service functions including oil and brake resets
Supports CAN-FD and FCA Gateway access for newer vehicles
4-in-1 live data merged waveform graph

Cons

Fewer reset functions than competitors offering 15 or 16 services
Heavier build at 1.39 pounds compared to lighter handheld units
Limited to 90+ vehicle brands rather than universal coverage

Good fit if

You need transmission diagnostics alongside standard engine codes
You want a large 5-inch screen for detailed live data
You prefer lifetime software updates without subscription fees

Skip if

You require more than nine reset services
You need bidirectional control for active tests
You want a compact device under one pound

Verdict: TOPDON AD600S 5-Inch Touchscreen Scanner fits DIY mechanics who prioritize a large display and lifetime updates over maximum reset count. It is ideal for those needing reliable transmission and ABS diagnostics with broad brand support.

9Also great

FOXWELL NT716 5.5" Touchscreen Scanner

Best for: DIYers needing transmission and ABS diagnostics

System Coverage: Check Engine, ABS, SRS, Transmission
Reset Functions: 9
Screen Size: 5.5"
Software Updates: Lifetime
Diagnostic Functions: Bi-Directional, AutoVIN, Live Data

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The FOXWELL NT716 covers Engine, ABS, SRS, and Transmission systems with bidirectional active tests. It includes 9 reset functions and a 5.5-inch touchscreen. The device features a 4000mAh battery and lifetime software updates. You get a 1-year warranty and a carrying case. This tool suits DIYers who want dealer-level resets without a subscription.

Pros

Covers Engine, ABS, SRS, and Transmission systems
Includes 9 essential reset functions
Features bidirectional active tests
Has a 5.5-inch HD touchscreen
Provides lifetime software updates

Cons

Supports only 4 system diagnostics
Limited to 9 reset functions
Excludes key programming support

Good fit if

You need transmission and ABS diagnostics
You want bidirectional control
You prefer a large touchscreen

Skip if

You require all-system coverage
You need more than 9 resets
You need key programming

Verdict: The FOXWELL NT716 5.5" Touchscreen Scanner offers solid transmission and ABS diagnostics with bidirectional tests. It fits DIYers who want a dedicated 4-system tool with a large screen.

10Also great

Thinkcar THINKSCAN 662 6.2" Scanner

Best for: mechanics needing bidirectional transmission tests

System Coverage: Check Engine, ABS, SRS, Transmission
Reset Functions: 12+
Protocol Support: CAN-FD, FCA AutoAuth
Screen Size: 6.2"
Software Updates: Lifetime
Color: Black

Check price on Amazon

The Thinkcar THINKSCAN 662 is a 6.2-inch Android 8 diagnostic tool built for transmission and system analysis. It features a 4-core 1.8GHz CPU, 2GB RAM, and 32GB ROM for stable performance. You get bidirectional control with 3,000+ active tests and 12 reset functions. The 4150mAh battery supports all-day use. It covers Engine, Transmission, ABS, and SRS systems with lifetime updates.

Pros

6.2-inch 1024×600 high-resolution touchscreen
3,000+ bidirectional active tests
12 maintenance reset functions
4150mAh battery for extended use
Lifetime free software updates

Cons

Fewer reset functions than competitors offering 15 or 16 resets
Older Android 8 operating system compared to newer versions
Lower screen resolution than many 1080p competitors

Good fit if

You need bidirectional control for transmission diagnostics
You want a large 6.2-inch display for live data graphs
You require 12 reset functions for routine maintenance

Skip if

You need 15 or more reset functions
You require the latest Android version
You prefer a 1080p screen resolution

Verdict: Thinkcar THINKSCAN 662 6.2" Scanner offers robust bidirectional testing and a large display for mechanics who prioritize active component control over the highest number of reset functions or the newest software version.

11Also great

ANCEL FX6000 6.2-inch SRS Scanner

Best for: DIYers needing active tests and 15 resets

System Coverage: Check Engine, ABS, SRS, Transmission
Bidirectional Control: Yes (supports active tests)
Reset Functions: 15
Protocol Support: CAN FD, ISO 15765-4, ISO 9141-2, KWP
Screen Size: 6.2-inch
Software Updates: Lifetime free

Check price on Amazon

The ANCEL FX6000 covers Engine, ABS, SRS, and Transmission systems. It features bidirectional control for active tests and 15 reset functions. A 6.2-inch touchscreen displays live data. The device includes lifetime Wi-Fi updates without subscription fees. This scanner suits DIYers who need broad diagnostic capabilities and clear on-screen guidance for complex repairs.

Pros

Bidirectional control for active component testing
15 reset functions including ABS bleeding and EPB
6.2-inch touchscreen for live data viewing
Lifetime free Wi-Fi software updates

Cons

Fewer reset functions than the XTOOL A30D which offers 19
Larger physical dimensions at 10.3 inches long compared to the ANCEL FX2000 Plus

Good fit if

You need to perform transmission and ABS bleeding resets
You want to test components with bidirectional commands
You prefer a large 6.2-inch display for live data

Skip if

You require more than 15 reset functions
You need a compact tool that fits in a small pocket
You only need basic code reading for Engine systems

Verdict: ANCEL FX6000 6.2-inch Bidirectional Scanner fits DIYers who need active testing and 15 resets for transmission and ABS work. It offers a large screen and lifetime updates for long-term use.

12Also great

ANCEL FX2000 Plus OBD2 Scanner

Best for: basic transmission and system code reading

System Coverage: Check Engine, ABS, SRS, Transmission
Protocol Support: OBD2, CAN
Software Updates: Lifetime free
Diagnostic Functions: Live Data
Dimensions: 9.06 × 1.77 × 7.8 inches

Check price on Amazon

The ANCEL FX2000 Plus is a grey OBD2 scanner covering Engine, Transmission, ABS, and SRS systems. It supports CAN protocols and provides live data for diagnostics. You get lifetime free software updates and a protective carry bag. It fits most 1996+ US vehicles. This unit measures 9.06 inches long and 1.77 inches wide. It is a solid tool for basic transmission and system code clearing.

Pros

Covers Engine, Transmission, ABS, and SRS systems
Lifetime free software updates
Includes protective carry bag
Supports CAN protocols

Cons

No bidirectional control capabilities listed
Limited to 1.77 inches width
Excludes specific brands from 2018 onwards

Good fit if

You need to read and clear codes for Transmission, ABS, and SRS
You want lifetime free software updates without subscription fees
You prefer a scanner that includes a protective carry bag

Skip if

You require bidirectional active tests for transmission components
You drive a 2018+ US Ford, GM, Chrysler, Dodge, or Jeep
You need advanced live data streaming beyond standard OBD2 functions

Verdict: ANCEL FX2000 Plus OBD2 Scanner is a straightforward diagnostic tool for checking transmission and other systems. It fits buyers who want basic code reading and lifetime updates without bidirectional features.

Specifications side by side

Spec	BLCKTEC 460T OBD2 Scanner	FOXWELL NT604 Elite 4-System Scanner	XTOOL A30D Black Wireless OBD2 Scanner	Innova 5410 All-System Bluetooth Scanner	TOPDON ArtiDiag500 5-inch OBD2 Scanner	Thinkcar THINKSCAN 662 6.2-inch OBD2 Scanner	XTOOL D5S 5.45-inch OBD2 Scanner	TOPDON AD600S 5-inch SRS Scanner	FOXWELL NT716 5.5" Touchscreen Scanner	Thinkcar THINKSCAN 662 6.2" Scanner	ANCEL FX6000 6.2-inch SRS Scanner	ANCEL FX2000 Plus OBD2 Scanner
System Coverage	All-system	–	All-system	All-system	–	4-system (ECM, TCM, ABS, SRS)	4-system	4-system (Engine, ABS, Trans, SRS)	4-system	4-system	4-system	–
Bidirectional Control	–	–	–	–	–	–	–	–	–	–	Yes (supports active tests)	–
Reset Functions	12+	–	19	–	6	12	16	9	9	12+	15	–
Protocol Support	–	–	CAN FD, FCA AutoAuth	–	CAN FD	CAN FD	CAN FD	CAN-FD	–	CAN-FD, FCA AutoAuth	CAN FD, ISO 15765-4, ISO 9141-2, KWP	OBD2, CAN
Connectivity	–	–	–	Bluetooth	–	–	–	–	–	–	–	–
Screen Size	–	–	Smartphone screen	–	5-inch	6.2-inch	5.45-inch	5 inches	5.5"	6.2"	6.2-inch	–
Software Updates	Lifetime free	Lifetime	Lifetime	–	Lifetime	Lifetime	Lifetime free	Lifetime	Lifetime	Lifetime	Lifetime free	Lifetime free
Control Method	–	–	–	App Control	–	–	–	–	–	–	–	–
Color	Blue	red	Black	–	–	Black	Black	Blue	NT726	Black	Red-Black	grey
Recommended Use	Cars	Cars & Trucks	Cars	Cars & Trucks	Cars	Cars	Cars & Trucks	–	–	Cars	Cars	–
Features	–	–	–	Battery Repair	–	–	–	–	–	–	–	–
Diagnostic Functions	AutoVIN	Live Data	Bi-Directional	–	AutoVIN	Bi-Directional	–	–	Bi-Directional, AutoVIN, Live Data	Bi-Directional	Bi-Directional	Live Data
Compatible Operating System	–	–	Android, iOS	–	–	–	–	–	–	–	–	–
Dimensions	7.75 × 1.5 × 4.4 inches	7.68 × 3.54 × 1.18 inches	3.94 × 5.51 × 1.97 inches	6 × 3.3 × 1 inches	9 × 5 × 1 inches	–	–	8.7 × 1.46 × 5.23 inches	–	–	10.3 × 8.3 × 2.5 inches	9.06 × 1.77 × 7.8 inches
Weight	–	–	–	–	1.2 pounds	–	–	1.39 pounds	–	–	–	–
Model	460T	NT604Elite	Anyscan A30D	5410	ArtiDiag500	THINKSCAN 662 OBD2 Scanner	D5S	AD600S	NT716 4 System with 9 Resets Black	TK-662	FX6000	FX2000EVA
Size	–	–	A30D	–	10.2 x 8.3 x 2.4 Inch	THINKSCAN 662 US	–	–	2026	TK 662 US	FX6000 Scanner	FX2000

If you need office hardware for maintenance records, you can compare specs for the best document scanners for documents.

How to choose the right obd2 scanner

Check system coverage needs

Transmission diagnostics require specific system access. Ensure the scanner lists Transmission in its System Coverage. Some tools cover only Check Engine and Transmission, while others include ABS and SRS as well. The BLCKTEC 460T covers Check Engine, ABS, SRS, Transmission, and TPMS. This broad coverage helps if you suspect related issues. If you only need transmission codes, a simpler tool may suffice. Always verify the list matches your vehicle’s architecture to avoid missing critical data during diagnosis.

Select the right connectivity

Connectivity determines how you view data. Wireless options like Bluetooth or Wi-Fi offer mobility. The Innova 5410 uses Bluetooth for app control, letting you stand away from the port. The TOPDON ArtiDiag500 uses Wi-Fi for stable updates. If you prefer a standalone device, most scanners here have built-in screens. Check your preferred method first. Bluetooth requires pairing. Wi-Fi needs a network. Wired connections are not listed for these top picks. Match the connection to your workflow for the best experience.

Verify bi-directional control

Bi-Directional functions allow active testing, not just reading codes. This feature lets you command components to test transmission response. The XTOOL A30D and Thinkcar THINKSCAN 662 both support Bi-Directional diagnostics. If you need to force a solenoid or motor to operate, this is essential. Basic scanners like the ANCEL FX2000 Plus only read data. They lack active control. If you are a DIYer doing deep repairs, prioritize models with this function. It turns a passive reader into an active diagnostic tool.

Look for reset functions

After repairs, systems often need resetting. Transmission work may require throttle relearn or other resets. The BLCKTEC 460T includes Throttle Relearn and BMS Reset. The TOPDON AD600S offers Oil Reset and SAS Reset. If your job involves clearing service lights or reprogramming modules, check the Reset Functions list. Some tools offer only basic code clearing. Others provide extensive reset capabilities. Match the reset list to the services you perform most often. This saves time and avoids manual procedures.

Consider screen size and type

Screen size affects readability in the engine bay. Larger displays show more data at once. The Thinkcar THINKSCAN 662 features a 6.2-inch screen. The XTOOL D5S has a 5.45-inch display. Smaller devices like the BLCKTEC 460T are handheld but have smaller screens. If you prefer viewing complex data streams, a larger screen is better. Touchscreens add ease of use. Check the specs for size. A 5-inch or larger screen is ideal for detailed transmission diagnostics and easier navigation.

Frequently asked questions

Can an OBD2 scanner read transmission codes?

Yes, dedicated tools can read transmission codes. Look for scanners listing Transmission in their System Coverage. Models like the BLCKTEC 460T and FOXWELL NT604 Elite cover transmission systems. This allows you to retrieve fault codes specific to the gearbox, helping you identify issues without visiting a shop.

Which scanner is best for transmission reset functions?

The BLCKTEC 460T supports over 12 reset services. It includes Throttle Relearn and BMS Reset. The TOPDON ArtiDiag500 also offers similar resets like Oil Reset and SAS Reset. These functions help clear adaptation values or prepare new components after transmission repairs or part replacements.

Do I need a handheld scanner or a Bluetooth adapter?

It depends on your preference for screen size. Handheld units like the TOPDON ArtiDiag500 offer large displays for detailed data. Bluetooth adapters like the Innova 5410 rely on smartphone apps. The XTOOL A30D provides wireless access via Android or iOS. Choose based on your preferred interface.

Can I perform bi-directional tests on transmissions?

Some advanced scanners support bi-directional controls. The XTOOL A30D and Thinkcar THINKSCAN 662 list Bi-Directional functions. This allows active tests to command transmission components. It helps verify if solenoids or valves are operating correctly, rather than just reading passive fault codes.

Are lifetime software updates important for transmission diagnostics?

Lifetime updates ensure compatibility with newer vehicle models. The BLCKTEC 460T and TOPDON AD600S offer lifetime updates. Transmission control modules change frequently. Regular updates help the scanner access the latest protocols, such as CAN-FD, ensuring accurate diagnostics for newer cars and trucks.

What is AutoVIN scanning and why does it matter?

AutoVIN scanning automatically identifies the vehicle. The BLCKTEC 460T and TOPDON ArtiDiag500 feature this function. It saves time by selecting the correct software for the transmission system. You do not need to manually input the year, make, or model, reducing the chance of errors.

Is a large screen better for transmission work?

Large screens help view complex data streams. The Thinkcar THINKSCAN 662 has a 6.2-inch display. The XTOOL D5S features a 5.45-inch screen. These sizes make it easier to read live data and bi-directional test results clearly, which is helpful when diagnosing transmission issues.

Where these figures come from

The price, the list price it is compared against and the specifications on this page are read from the Amazon product listing. Scores are out of 10, based on listed specifications and buyer feedback, and no product here has been handled or measured by us. The award ribbons are calculated across the products in this guide only, and each one states the figure it was based on.