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OBD2 car scanner: live gauges, DTC codes, trip logs & fuel stats via BT/Wi-Fi
Car Scanner turns your phone into a full OBD2 diagnostic tool and trip computer — connect any ELM327-compatible adapter over Bluetooth Classic, Bluetooth LE, or Wi-Fi and get instant access to your vehicle's live data and diagnostics. LIVE DATA • Dashboard with customizable analog-style gauges (RPM, speed, coolant temp, fuel level, and more) • Selected Sensors — a live list view of the sensors you care about • All Sensors — every PID your vehicle reports, all at once • Create your own Custom PIDs with formulas for manufacturer-specific or advanced sensors DIAGNOSTICS • Read and clear stored, pending, and permanent trouble codes (DTCs) • Freeze Frame data — the sensor snapshot captured when a fault occurred • Mode 06 on-board monitoring test results • ECU Info — VIN and protocol details • Non-Continuous Monitors (emissions readiness) status • Massive built-in DTC database — around 70,000 code descriptions across 50+ manufacturers (OBD-II generic plus brand-specific codes), so you get a real explanation, not just a code number • One-tap search for any trouble code online for more detail SERVICE & CODING • Manufacturer-specific service resets and adaptation procedures PERFORMANCE TESTS • Speed Test — time your vehicle between any two speeds (e.g. 0–100) • Eco Test — monitor driving efficiency in real time TRIP RECORDING & STATISTICS • Record drives in the background, with distance, average speed, fuel used, and estimated cost • Review trip history with combined and per-sensor charts • Fullscreen, landscape-friendly charts for a closer look at any drive • Automatic recording on connect, or start/pause/stop manually • Statistics page with totals across all your trips GARAGE • Manage multiple vehicles, each with its own calibration and trip history CALIBRATION & SETTINGS • Correct for non-stock tires/wheels with speed and fuel calibration offsets • Metric or imperial units • Light or dark theme • Back up and restore all your data (garage, trips, settings, custom PIDs) to a file NO ACCOUNT, NO CLOUD All your data — trips, settings, custom PIDs — stays on your device. No sign-up, no mandatory internet connection for core features. TRY IT WITHOUT HARDWARE A built-in Demo Mode simulates a connected vehicle with realistic live data, so you can explore every screen before you even plug in an adapter. Compatible with standard ELM327 OBD2 Bluetooth, Bluetooth LE, and Wi-Fi adapters. Works with any OBD-II compliant vehicle (most cars and light trucks sold since 1996 in the US, 2001+ for gasoline / 2004+ for diesel in the EU). This app is supported by ads.