Cloud-Based Vehicle Diagnostics

Online DIAG is a professional cloud-based platform for on-board vehicle diagnostics. Built for modern workshops, it delivers a fast, flexible, and intuitive web interface that streamlines reading diagnostic trouble codes (DTCs), viewing real-time sensor data, and performing advanced ECU functions—all from your browser. To get started, simply connect any SAE J2534 Pass-Thru compatible interface.

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Instant Reports:

Generate complete vehicle diagnostic scan reports with DTC descriptions data in seconds.

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Remote Access:

Read live vehicle parameters from any internet-connected device—PC, tablet, or smartphone.

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Dealer-Level Functions:

Access ECU coding, adaptation, and service resets typically reserved for OEM tools.

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Secure & Encrypted:

All diagnostic sessions use end-to-end encryption with full audit logging for compliance.

Supported Brands

Online DIAG is engineered as a multi-brand diagnostic solution, providing dealer-level coverage for premium manufacturers including Aston Martin, BMW, Ferrari, Lamborghini, Maserati, Mercedes-Benz, Porsche, and many others. Get OEM-quality diagnostics without the OEM price tag.

View the full list of supported vehicle brands and models.

Technical Requirements

Online DIAG is a software-only platform designed to work with any J2534-compliant Pass-Thru device. The diagnostic capabilities available to you depend on your interface hardware. For full functionality, your Pass-Thru device should support the following protocols as defined in SAE J2534-2:

CAN Bus: Pin selection on 6&14, 3&11, 3&8, 12&13, 1&9, 7&11 with baud rates 50, 125, 500, and 1000 kBit/s.

Fault-Tolerant CAN: Pin selection on 1&9 with baud rates 50 and 125 kBit/s.

Single Wire CAN: Pin 1 at 33.333 kBit/s baud rate.

K-Line Protocols: ISO9141 and ISO14230 (Keyword 2000) with pin selection on 1, 3, 6, 7, 8, 9, 11, 12, 13, 15 and baud rates 1200, 4800, 9600, 10400, and 115200 bit/s.

UART Echo Byte Protocol for legacy vehicle systems.

Not sure if your interface is compatible? Contact us for a compatibility check.

⭐ Best choice: Bosch MTS 6531

💰 Budget-friendly: CANtieCAR v5.x

Packages

Choose the diagnostic depth that fits your workshop. Upgrade anytime.

BASIC

Core essentials for independent garages.

Scan all units
Identification
Read/Clear DTCs
Reading Actual Values

Get Started Free

STANDARD

Dealer-level functions with guided tests.

All Features from BASIC package
Actuator Tests
Active Diagnostic
Custom Requests

Start Pro Trial

PROFESSIONAL

Complete OEM capabilities for specialists.

All Features from STANDARD package
Coding and Adaptation
Special Functions
Trace

Contact Sales

Our subscription plans are in final validation and will ship soon. Until launch, every Online DIAG subscription includes the full feature catalogue at no additional cost for the first year.

Contact

Work with our official distributors to launch Online DIAG with confidence.

Official Distributor

Coding-Center.com

For purchase requests, onboarding assistance, and worldwide availability, Coding-Center.com remains the main Online DIAG distributor. Their team will guide you through licensing, hardware, and deployment best practices.

🌐 coding-center.com

📍 San Francisco, CA · Serving customers worldwide

✉️ hello@coding-center.com

Authorized Partner

Certified to distribute Online DIAG licenses and provide first-line support worldwide.

Need guidance?

Start with Coding-Center.com

Use Coding-Center.com as the primary contact for global Online DIAG purchasing, licensing, hardware recommendations, and purchasing guidance.

Email Coding-Center.com Product Page

Main distributor for Online DIAG.
Certified product, licensing, and onboarding support.

Launch dealer-grade diagnostics from any browser.