AutoCheck OBD
OBD2 Scanner & Fault Codes
About
Transform your iPhone into a professional OBD-II scanner. Read and clear diagnostic trouble codes with plain-language explanations, view live engine data in real-time, and generate comprehensive diagnostic reports. Explore all features with a demo mode before connecting an adapter.
What's New in AutoCheck OBD
1.1.0
July 22, 2026
This update adds 9 new languages: Arabic, German, French, Hindi, Japanese, Polish, Brazilian Portuguese, Russian, and Turkish. AutoCheck OBD now automatically matches your device language on first launch, and you can switch languages any time in Settings. Also includes bug fixes and performance improvements. Thanks for using AutoCheck OBD!
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FAQ
What is AutoCheck OBD?
AutoCheck OBD is a utility application that transforms your iPhone into a professional-grade OBD-II scanner. It allows you to read and clear diagnostic trouble codes, view live engine data, and generate diagnostic reports.
Does AutoCheck OBD require an adapter?
Yes, AutoCheck OBD requires an ELM327-compatible OBD-II adapter to function. This adapter is sold separately and connects to your car's OBD-II port.
Can I use AutoCheck OBD without an adapter?
Yes, AutoCheck OBD includes a Demo Mode that lets you explore all of its features without needing to connect an ELM327 adapter. This is useful for understanding its capabilities.
What kind of live engine data can AutoCheck OBD show?
AutoCheck OBD can display real-time engine data such as RPM, speed, coolant temperature, engine load, throttle position, fuel level, intake air temperature, and more on an easy-to-read dashboard.
How does AutoCheck OBD help with check engine lights?
AutoCheck OBD can read diagnostic trouble codes (DTCs) that trigger the check engine light, providing clear, plain-language descriptions of the issues and their likely causes. It also allows you to clear these codes.
What languages does AutoCheck OBD support?
AutoCheck OBD is available in 11 languages and automatically matches your device's language settings for a personalized user experience.
Can I share diagnostic reports with AutoCheck OBD?
Yes, AutoCheck OBD allows you to share a complete diagnostic report of your vehicle's status as a PDF file, which can be useful for mechanics or personal records.
How often is AutoCheck OBD updated?
The latest version of AutoCheck OBD is 1.1.0, and it was last updated on July 22, 2026. Updates typically include bug fixes and feature enhancements.