corediag.com

What It Is

CoreDiag is an AI Diagnostic Assistant built for automotive repair shops. It is designed around the repair order (RO) workflow: after a service advisor enters the vehicle details and the customer’s complaint, the system uses VIN decode to auto-complete vehicle information, then combines NHTSA recalls, complaints, TSBs, and AI analysis to generate ranked diagnostic suggestions within seconds. The page emphasizes that this is not a prototype—it is already running in real repair shops.

Core Capabilities

Its main value is bringing AI diagnostic recommendations directly into the RO workflow, reducing the need for technicians to learn an additional tool. In the example shown, CoreDiag analyzes a 2019 Ford F-150 with rough idle and an intermittent MIL, returns a “high confidence” assessment, lists possible causes such as VCT solenoid failure, intake valve carbon buildup, and engine oil condition affecting VCT oil pressure, and recommends first reading the freeze frame data and checking for P0011/P0021. Technicians can also rate the accuracy of recommendations, which the system uses for ongoing tracking and improvement. The Pro version adds analytics dashboards, accuracy trends by make/model, multi-location management, and custom prompt tuning.

Pricing and Trial

Pricing is straightforward: the basic CoreDiag plan is $99/location/month and includes RO management, AI diagnostic suggestions, NHTSA data, technician feedback, accuracy tracking, and unlimited users. The Pro add-on is +$59/business/month. A 14-day free trial is available with no credit card required, making the barrier to testing relatively low for small independent repair shops.

Pros and Cons

The strengths are its highly vertical focus and its fit with the Concern-Cause-Correction language used in automotive repair. By combining public regulatory and repair-related data, it can give technicians a diagnostic direction before work begins. Unlimited users are also friendly for shop collaboration. The limitations are also clear: the website does not specify the AI model, API, integrations with third-party repair systems, payment methods, or privacy policy. Its data sources center on NHTSA, which naturally makes it more oriented toward U.S. vehicles and the U.S. market.

Who It’s For and Access from China

CoreDiag is better suited to U.S. independent repair shops, service advisors, technicians, and multi-location shop owners who want to improve initial diagnostic efficiency, reduce comebacks, and build up diagnostic data over time. Users in China should evaluate it carefully: the page does not mention Chinese language support, Chinese vehicle data, domestic regulations/recall data, or local payment options. Network accessibility also cannot be confirmed from the available text. For the Chinese market, alternatives that support Chinese repair documentation, domestic VIN/model databases, and local after-sales service may be more appropriate.