OBD JScan

OBD JScan is a comprehensive Jeep and Dodge diagnostic application that empowers vehicle owners and technicians to read, interpret, and manage engine diagnostics with professional-grade accuracy. Whether you're troubleshooting emission issues or accessing deep vehicle data, this app transforms your smartphone into a powerful diagnostic scanner.

Gain instant access to diagnostic trouble codes across all vehicle modules—not just the engine. Read emission-related codes, clear fault histories, and share diagnostic reports with mechanics or fellow enthusiasts. Beyond basic diagnostics, you'll unlock live sensor data from every corner of your vehicle, giving you real-time insight into how your engine, transmission, ABS, steering column, HVAC, sway bar, and radio systems are performing. This level of vehicle diagnostics was once locked behind expensive dealer equipment.

Customize your driving experience by adjusting vehicle settings that manufacturers typically reserve for service centers. Modify tire size, axle ratio, and DRL settings to match your setup. Identify critical vehicle information including VIN, part numbers, and all available modules—essential for troubleshooting, repairs, and upgrades. Whether you're maintaining a Jeep Wrangler JK, Grand Cherokee WK, Cherokee KK, or a Dodge Ram, Durango, Challenger, or Charger, OBD JScan supports an extensive range of Jeep and Dodge vehicles from multiple model years.

The app works seamlessly with recommended OBD ELM327 adapters via Bluetooth or WiFi, including popular options like the iCar Vgate series and OBD LinkMX adapters. Note that some 2018+ models and newer Jeep platforms require a security bypass cable for full access. Connection stability is optimized with supported STN1170-based adapters; be cautious with cheaper clone adapters that may cause reliability issues.

Whether you're a DIY enthusiast performing routine maintenance, a serious modifier tuning your vehicle's parameters, or a professional technician needing portable diagnostics, OBD JScan delivers the depth of vehicle data access you need. Stop guessing what your check engine light means—get precise, actionable diagnostic information instantly. Download OBD JScan today and take complete control of your vehicle's health and performance.