We now cover over 2.4 million unique Diagnostic Trouble Codes (DTC:s)

When it comes to automotive diagnostics, data is everything—and at WrenchLane, we are building the most comprehensive databases in the industry.

The numbers behind WrenchLane, and it's growing every week.

155 vehicle makes.
25 000+ models.
2 411 924 unique DTCs (Diagnostic Trouble Codes).

Yes, that’s over 2.4 million DTCs, cross-referenced and enriched with relevant symptoms, repair guidance, and context—all accessible within seconds using our AI assistant.

No more flipping through manuals or endless search on Google. Just instant clarity, tailored to the car you’re working on.

Why it Matters: Smarter AI = Faster Repairs

The size of our dataset isn’t just for show—it fuels WrenchLane’s AI engine. The more data it has, the smarter it gets at:

Decoding cryptic fault codes.
Recognizing edge cases in rare models.
Recommending relevant TSBs and fixes.

Coverage you can trust

From European EVs to American pickups, WrenchLane spans:

Mainstream brands like Volkswagen, Toyota, Ford.
Premium vehicles like BMW, Audi, Mercedes.
Commercial and niche models often skipped by other platforms.

Whether it’s a P0420 on a 2012 Mazda or an obscure B-code on a Renault Kangoo, we’ve likely got it—and the explanation to go with it.

Designed for real-world vehicle diagnostics

This isn’t just a raw dataset. It’s:

Indexed and structured for instant AI retrieval.
Linked to symptoms, systems, components, and fuel types.
Continuously updated and expanded by our team of experts and feedback from garages.

How you as a mechanic benefit

Less guesswork: You don’t waste time trying to decode incomplete data.
More confidence: Get answers specific to the make, model, and engine type.
Better customer trust: Show accurate diagnostics and repair insights in seconds.

Because in diagnostics, the right data makes all the difference.

Join the future of automotive repair.
Smarter diagnostics, faster fixes—powered by data.

Start diagnosing with WrenchLane. Sign up here.