ChatOBD2 | AI for ELM327

ChatOBD2

In-app purchases

About this app

ChatOBD2 is a standalone OBD-II assistant that works with ELM327-class Bluetooth/Wi-Fi adapters. Connect to your vehicle to read fault codes, identify parts, get brand-specific repair advice, monitor live data, and ask Expert AI for help. PRODUCT FEATURES

Connectivity and vehicle
• ELM327-compatible adapter (Bluetooth/Wi-Fi)
(Work is ongoing for other OBD2 adapters)
• Quick connect / connection status
• VIN reading and vehicle identification
• Manual make/model/year selection (if VIN is unavailable)
• Vehicle session history (chats and logs by VIN)

Faults and diagnostics
• Fault code (DTC) reading — confirmed / pending / permanent
• Fault code clearing (Mode 04 — only with your confirmation)
• Code title and detailed description (multilingual catalog)
• Probable causes, symptoms, and inspection tips
• Freeze frame data
• Readiness / I/M monitor summary
• Mode 06 / battery / ECU info (on supported vehicles)
• Research on chronic / known issues
• Summaries in work-order / verification format

Parts and repair
• Finding relevant parts based on faults
• Repair guide (step-by-step instructions)
• Brand-specific repair and OEM procedure recommendations
• Full report and fault details (HTML)
• Parts list report


Live data and driving
• Live PID dashboard (RPM, speed, temperature, trim, load, etc.)
• PID selection, interval, graph / gauge
• Live recording (CSV) and annotation
• 0–100 km/h acceleration test
• Road-dyno style power estimation
• Measurement reports

Reports, storage, and app settings
• Open / share / print HTML reports
• History: vehicle chats and test logs
• Storage management
• Multi-language, themes, and font size options
• Account, purchases, and gifts / referrals
• Messages and updates Diagnostics

WHO IS THIS FOR?
• Drivers using ELM327
• Workshops, mechanics, and enthusiasts
• Those looking to understand faults and identify necessary parts or repairs

IMPORTANT (Legal)
ChatOBD2 does not sell, rent, or license OEM brand diagnostic software. It is a general OBD-II (SAE J1979) assistant; it is not a manufacturer-approved brand-specific device. Brand names belong to their respective owners. The AI ​​expert and recommendations regarding repairs, parts, or brands serve as references—the final decision rests with the mechanic or the OEM procedure. Safe driving and legal use are your responsibility.

Adapter: ELM327 compatible.
Support: www.chatobd2.com

What’s new

Multilingual support and the AI ​​Master Assistant take center stage in this version|

• Ways to use all functions for free
• New/expanded language packs
• Master AI: clearer diagnostics, prioritization, and repair guidance
• Enhanced chat, report, and live dashboard experience