Scan Tool Ledger is a specialist publication about automotive diagnostic scanners and the decisions involved in buying and owning them. We cover scan tablets, phone-based OBD2 adapters, service functions, software updates and the differences between aftermarket and manufacturer diagnostic platforms.
What our guides help you decide
A long feature list does not tell you whether a scanner can perform a particular job on your vehicle. Our guides explain the distinctions that affect that decision: generic versus manufacturer-specific diagnostics, code reading versus active tests, wired versus wireless connections, service routines, regional software and ongoing access costs.
We organize the site into Buying Guides, Comparisons, Model Research and Ownership Guides. The starting point for any purchase is our scanner compatibility checklist.
How the research works
Our evaluations use manufacturer specifications, user manuals, support information, coverage tools and relevant technical sources. We distinguish a documented product capability from support for an exact vehicle, module and operation. When the available documentation does not establish a claim, we explain the uncertainty instead of filling the gap with an assumption.
The guides are based on documentation, rather than hands-on scanner tests or repairs performed with the products. Scan Tool Ledger is the publication credited on these guides. Our research process explains how we compare evidence and handle corrections.
Recommendations and affiliate links
Recommendations depend on the work a buyer needs to perform, the vehicle being serviced and the manufacturer’s documented support. A model that fits one use case may be unsuitable for another. Affiliate commissions do not establish a product’s compatibility or the accuracy of a feature claim.
As an Amazon Associate I earn from qualifying purchases. Read our Affiliate Disclosure for more information.
Corrections and questions
If you find an incorrect specification, changed software policy or unclear regional limitation, please contact Scan Tool Ledger with the model name and a supporting source. Vehicle-specific repair and programming decisions should follow the current manufacturer service information and the advice of an appropriately qualified professional.