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Best Topdon scanners: ArtiDiag, AD and Phoenix lines compared

Picked from Amazon listings, not hands-on tests. How we pick

Top picks at a glance

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  • Closest match for the job

    Topdon AD800BT 2: bidirectional, 28 resets, lifetime updates

    The listing states it was upgraded from 2 years to free lifetime updates, so there is no recurring software fee.

    See price on AmazonSee it on Amazon

  • Most for the money on paper

    Topdon ArtiDiag Pro: ECU coding and 35+ services

    At $379.99 it is the cheapest ECU coding tool compared here.

    See price on AmazonSee it on Amazon

  • Most complete listing

    TOPDON ONE: 10.1 inch, J2534 pass-thru, 50+ services

    The ONE VCI supports J2534, so it can work with OEM diagnostic software as a pass-thru.

    See price on AmazonSee it on Amazon

Topdon sells a lot of scan tools with similar names, so the hard part is knowing which line fits your job. The AD500 and ArtiDiag600 tools read codes and run common resets but do not list bidirectional control. The AD800BT 2, AD900BT and ArtiDiag Pro add active tests, and the AD900BT and ArtiDiag Pro add ECU coding. The Phoenix tablets and the TOPDON ONE are shop-grade tools with bigger screens, more service functions and, on the ONE, J2534 pass-thru. This guide lines up eight Topdon models using only what each Amazon listing states: bidirectional control, number of reset services, ECU coding, FCA gateway access, screen and update terms. Update terms differ a lot across the line, from lifetime free to 2 years, so check that row before you buy.

Compare the picks

Facts are taken from each Amazon listing. Prices are checked daily and shown with their date.

The picks in detail

Pick 1 · TOPDON

Topdon AD800BT 2: bidirectional, 28 resets, lifetime updates

See price on Amazon

A wireless bidirectional scanner with 28 reset services, FCA gateway access and free lifetime updates. The best fit for most DIYers and small shops who want active tests without a subscription.

What the listing offers

  • The listing states it was upgraded from 2 years to free lifetime updates, so there is no recurring software fee.
  • Bidirectional control sends commands to the ECU to run actuators, which helps confirm a failed part before buying it.
  • 28 services include oil, SAS, EPB, TPMS, ABS bleeding, DPF regeneration, battery and throttle.

Limits to know

  • The listing does not mention full ECU coding beyond injector coding; step up to the AD900BT for online coding.
  • The listing does not state screen size, so compare it in photos if display size matters to you.
See it on AmazonListing title: TOPDON AD800BT 2 OBD2 Scanner, Bidirectional Scan Tool, 28+ Reset Serv...

Pick 2 · TOPDON

Topdon Phoenix Plus 2: 10.1 inch, 40 resets, topology

See price on Amazon

A 10.1 inch TOPDON tablet with OE-level topology, ECU coding, 40 resets and 2 years of free updates. A lower-priced entry into pro tablets for shops that do not need J2534.

What the listing offers

  • Topology mapping shows control units in color with scan results, per the listing.
  • 2 years of free updates and 40 reset services with ECU coding are stated.
  • Android 10, 4GB RAM, 64GB ROM and an 8MP rear camera.

Limits to know

  • J2534 pass-thru programming is not mentioned in the listing.
  • The screen resolution is lower than the 1920 x 1200 panels on some Autel tablets.
See it on AmazonListing title: TOPDON Phoenix Plus 2 Bidirectional Scan Tool, OE-Level Full Diagnosis

Pick 3 · TOPDON

Topdon AD900BT: online ECU coding plus 28 services

See price on Amazon

The AD900BT adds online ECU coding to a wireless bidirectional scanner with 28 services. A fit for owners who want to code replacement parts or enable hidden functions.

What the listing offers

  • Online ECU coding is listed for hidden functions, power balance matching and coding replacement parts.
  • Bidirectional tests cover window, mirror, door lock and throttle functions according to the listing.
  • The listing states a 6300mAh battery, which supports long sessions away from a charger.

Limits to know

  • Updates are 2 years with no fee per the listing; check the current renewal price on the listing before buying.
  • FCA AutoAuth is not mentioned in this listing, which matters for 2018+ Chrysler, Jeep and Dodge.
See it on AmazonListing title: OBD2 Scanner Diagnostic Tool, TOPDON AD900BT Bidirectional Scan Tool w...

Pick 4 · TOPDON

TOPDON ONE: 10.1 inch, J2534 pass-thru, 50+ services

See price on Amazon

The pro pick: dual WiFi, 10.1 inch screen, 50+ services including ADAS calibration, CAN-FD and DoIP, and a VCI that works as a J2534 pass-thru with OEM software.

What the listing offers

  • The ONE VCI supports J2534, so it can work with OEM diagnostic software as a pass-thru.
  • CAN-FD and DoIP coverage is listed for 2013+ BMW, 2018+ Mercedes and 2020+ GM and Chrysler.
  • Service list includes ADAS calibration, DPF regen, TPMS reset and ABS bleed.

Limits to know

  • It is more tool than most DIYers need, and the price reflects shop use.
  • The listing does not state update or subscription terms; confirm them before buying.
See it on AmazonListing title: TOPDON ONE Bidirectional Scan Tool, 10.1" Professional Diagnostic Tool

Pick 5 · TOPDON

Topdon ArtiDiag Pro: ECU coding and 35+ services

See price on Amazon

The lowest-priced coding tool in this guide, with ECU coding for VW group and Benz cars, bidirectional control and 35+ services. A fit for owners of those makes.

What the listing offers

  • At $379.99 it is the cheapest ECU coding tool compared here.
  • 35+ special functions, including oil reset and EPB service, per the listing.
  • FCA AutoAuth for 2017 and newer Chrysler, Jeep, Dodge and Fiat vehicles.

Limits to know

  • The listing says the Chrysler 12+8 and BMW-20 adapters are no longer in the box.
  • Coding is listed for a short set of brands, so domestic owners should check coverage.
See it on AmazonListing title: TOPDON ArtiDiag Pro Bidirectional Scan Tool with ECU Coding, 35+ Servi...

Pick 6 · TOPDON

Topdon Phoenix Lite 2: 8 inch tablet, 34+ resets, coding

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An 8 inch TOPDON tablet whose listing names online and ECU coding for Benz, BMW, VW and Porsche, active tests and 34+ reset services, plus FCA AutoAuth.

What the listing offers

  • The listing names online and ECU coding for Benz, useful for matching modules after replacement.
  • 34+ reset services and OE-level diagnosis are listed.
  • 8 inch 1280 x 800 screen and a 12600mAh battery are listed.

Limits to know

  • It is a general all-makes tool, with no Mercedes-specific service list in the listing.
  • Update terms are not stated, so check the listing before you buy.
See it on AmazonListing title: TOPDON Phoenix Lite 2 Bidirectional Scan Tool, OBD2 Scanner, ECU Codin...

Pick 7 · TOPDON

Topdon ArtiDiag600 Elite: full system, 13 services

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A full-system code reader with 13 services, Android 11, AutoVIN and FCA gateway access. A good fit for DIYers who want all-system codes but do not need active tests.

What the listing offers

  • Full-system diagnosis covers all systems, not just engine, ABS, SRS and transmission.
  • The listing states free software and coverage updates plus a 1 year warranty.
  • FCA gateway access is listed for newer Chrysler, Jeep and Dodge vehicles.

Limits to know

  • Bidirectional control is not listed, so you cannot command actuators.
  • 13 services is fewer than the AD800BT 2, which costs more but adds active tests.
See it on AmazonListing title: TOPDON ArtiDiag600 Elite Full-System Car Diagnostic Tool, 13+ Services

Pick 8 · TOPDON

Topdon AD500: 4 systems, 6 resets, 5 inch screen

See price on Amazon

A four-system TOPDON scanner with 6 resets, a 5 inch touchscreen, CAN FD and FCA gateway access. Fits owners who mainly need to read and clear ABS and airbag codes.

What the listing offers

  • Supports CAN FD and FCA Secure Gateway, including 2020 and newer GM and Chrysler models.
  • Android 11 with a 4-core CPU, 2GB RAM and a 3350mAh battery, per the listing.
  • Diagnostic reports can be sent by email, and data streams can be recorded.

Limits to know

  • ABS bleeding is not among the 6 listed resets, so brake hydraulic work needs another tool.
  • Only four systems are covered, so body and HVAC modules are out of reach.
See it on AmazonListing title: TOPDON AD500 Car Diagnostic Scanner, Engine ABS SRS Transmission Scan ...

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Code & Clear chooses every product independently from what its Amazon listing states. We may earn a commission from the links above. As an Amazon Associate I earn from qualifying purchases.