Generic OBD-II readers
Template-duplicated reader shops are withheld. We will not list thirty near-identical sticks.
Diagnostic scanners
Last updated · OBDCode UK editorial
OBD-II readers range from a basic engine-code stick to a full-system workshop scanner. The right level depends on the vehicle, the systems you need, and whether you need live data or service functions. This category is off the shelf: the shops we reviewed are either suspended for false UK-origin claims or withheld as a template-duplicated reader cluster.
Off the shelf
No buy link. Several scanner shops remain suspended for false UK-origin claims. The remaining generic readers are a near-duplicate cluster and are not listed. A garage or parts-shop code read is usually enough for a single fault.
No verified live price on this page. We will not invent a typical figure from shops we refuse to list.
How to choose
Start with the job. A basic EOBD reader is enough to record generic engine codes and freeze-frame data. ABS, airbag, transmission and manufacturer-specific faults need a tool that explicitly covers those systems on your exact make, model and year.
Check the manufacturer’s coverage list before buying. Look for the data and tests you will genuinely use, a clear update policy, and an interface you can operate while the vehicle is stationary. Do not pay for coding or active-test claims unless the supported vehicles and functions are stated.
Selection checklist
- Exact make, model, year and system coverage
- The live-data, freeze-frame or service functions the job requires
- Update terms and whether a separate phone app or subscription is needed
You may not need to buy this if…
- You only need one code read and a local garage or parts shop can do it for less
- The warning concerns airbags, brakes or another system outside a basic reader’s stated coverage
- You already have a compatible reader that records the data needed for the next check
Read and record codes before clearing them. Clearing a code is not a repair and can remove useful freeze-frame evidence. Do not use or watch a handheld scanner while driving. Stop and seek professional help for a red warning, a flashing engine-management light, brake or airbag faults, or any check beyond your skill.
Shelf status
Suspended scanner shops
Shops that still claim UK manufacture for a Chinese-branded reader, or that change the product between the offer and checkout, stay off this page.
Supplier links
No vetted products yet — we only list suppliers that pass our compliance checks.
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General guidance for UK drivers, not a substitute for a professional diagnosis. Category and supplier review date: 14 August 2026.