Collection: Heavy Truck Diagnostic Software – All Makes & Engines

Diagnostic software for heavy-duty trucks — the full lineup in one place. If you run a mixed fleet or an independent shop, start here and pick by the engine in front of you.

Coverage by brand

Not sure what you need?

Most brands overlap on one adapter (a Nexiq USB-Link), so the real question is which software matches your engine — and whether you need to reprogram modules or just read and clear codes.

If you want one tool that touches almost everything, look at JPRO; if you service one make, the dealer-level tool for that engine gives you the deepest access.

Tell us the trucks in your fleet and we'll build the right combination and install it remotely the same day.