I tested dozens of different scanners over the past 2-3 years working as OBD-II scanner tester. Check my best recommendations for buying all brand-scanner sort by budget and type, or jump to car brands and select yours to see best picks for your brand.
By Type
| Best ELM327 | Smartphone adapter, pair with apps |
| Best Engine code readers | Wired engine reader |
| Best Bi-Directional scanners | Full system, data, component tests |
| Best Bluetooth scanners | ELM327 & J2534 for phones |
| Best 4-system scanners | ECM, TCM, ABS, SRS scanners |
| Best for professionals | For car shop, tire shop, key programming |
Choose by brand
If you need scanner just for one brand or one group of brands you can get professional Bi-Directional scanner with OEM functionality with free lifetime updates included for most of these car brands.
I also have PDF with scanner features explained, if you are lost and don’t know what functionality you need in your diagnostic tool. There are also some discount coupons, you can download it for free.
OBD-II scanner Buyer’s Guide
- Scanner features explained
- Different types of scanners
- Scanners for coding/odometer/ECU/checks
- Best picks + discount codes