Innova Electronics produces commonly used DIY code-scanners like its best-seller in the full-featured 5610, likewise less expensive models 5410, 5510 and 5512.
For many of the Class 3-5 hotshots or cargo-van owners in the audience, those options will be functional for diagnostic assist when the dash lights up. For most of the rest of you, the company's 3128 HD Adapter Kit serves as a patch between the scanner and the truck, with adapters fitting most connections to the rig's engine control module.

All adapters work with the Innova scanner models listed above with a DB25 male-to-female connection to the unit, and the kit includes a carrying-case pouch and the following connectors:
- 9-Pin green (500 kbps data-transmission rate) and black (250 kbps) connectors covering most post-2000 J1939-standard connections
- 6-Pin connector fitting the 1996-2001 J1587/J1708 standard
- 16-Pin connector for 24V J1979 standard
[Related: Don't 'drive through the lights' -- and other aftertreatment PM refreshers]
Truck makers' recent-history adoptions of the Environmental Protection Agency 2025 DEF-fault derate guidance means truck owners and drivers will have more time to diagnose and fix persnickety emissions-system issues. Having a capable scanner onboard can be an effective means of starting the process in collaboration with trusted techs and small fleet shop personnel, to get fault research going when the dash lights up.
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