OBD2 Scanner PRO

Turn your Android phone or tablet into a professional automotive diagnostic scan tool and real-time telemetry cockpit with OBD2 Scanner Pro. Engineered for car enthusiasts, DIY mechanics, track drivers, and everyday motorists, OBD2 Scanner Pro connects wirelessly to standard ELM327-compatible OBD-II adapters via Bluetooth or Wi-Fi to provide live engine parameters, read freeze frame diagnostics, and clear Check Engine Lights (MIL) with zero advertisements and no recurring subscriptions.

REAL-TIME COCKPIT & PERFORMANCE GAUGES
Experience fluid, high-refresh sweep dials and digital readouts designed for optimal legibility while driving:
• Dual Sweep Tachometer & Speedometer with configurable redline and shift alerts
• Turbo Boost and Vacuum pressure gauge with peak hold tracking
• Real-time calculated Engine Load, Instant Torque (Nm / ft-lb), and Horsepower estimates
• Instantaneous and trip-average Fuel Economy (MPG, L/100km, km/L)
• High-contrast visual warning indicators when sensors exceed safe operating thresholds

42 LIVE ENGINE TELEMETRY PARAMETERS
Monitor the complete health of your powertrain with multi-column sensor cards and live waveform sparkline trend graphs:
• Combustion & Airflow: Mass Air Flow (MAF), Manifold Absolute Pressure (MAP), Absolute Throttle Position (TPS), Commanded Throttle Actuator (TAC), Accelerator Pedal Position (APP-D & APP-E), and Intake Air Temp (IAT)
• Fuel Delivery: Short-Term Fuel Trim (STFT Bank 1 & 2), Long-Term Fuel Trim (LTFT Bank 1 & 2), Fuel Rail Pressure (Direct Injection & Common Rail), Fuel Level %, and Commanded Equivalence Ratio (Lambda)
• Thermal Dynamics: Engine Coolant Temperature (ECT), Engine Oil Temperature, Transmission Fluid Temperature (TFT), Ambient Air Temperature, and Catalyst Temperature (Bank 1 & 2)
• Electrical & Ignition: Control Module Voltage, Battery Charge Status, Ignition Timing Advance, and Oxygen Sensor O2 Voltages (B1S1, B1S2, B2S1, B2S2)

ADVANCED DTC DIAGNOSTIC SCANNER
Save money on garage diagnostic fees by identifying fault codes before visiting a repair shop:
• Read Stored, Pending, and Permanent Diagnostic Trouble Codes (DTCs)
• Access built-in SAE standardized definitions for Powertrain (P), Chassis (C), Body (B), and Network (U) fault codes
• Inspect Freeze Frame snapshots captured automatically by the ECU at the precise moment a diagnostic fault was triggered
• Clear fault codes and turn off the Check Engine Light (MIL) directly from your screen after repairs are completed

WINDSHIELD HEADS-UP DISPLAY (HUD) MODE
Transform night driving with integrated HUD projection:
• Mirrors high-contrast neon cyan and amber readouts directly onto your car windshield
• Large, distraction-free digital speed, RPM arc, and turbo boost display
• Auto-reversing display optimized for vehicle dashboard placement

EMISSION & I/M READINESS INSPECTION
Prepare for mandatory state and regional vehicle emissions testing:
• Continuous monitoring of Misfire, Fuel System, and Comprehensive Component monitors
• Non-continuous readiness tests: Catalyst, Heated Catalyst, Evaporative System (EVAP), Secondary Air System, O2 Sensor, O2 Sensor Heater, and EGR / VVT systems

HARDWARE COMPATIBILITY & PROTOCOLS
• Hardware Adapters: Compatible with standard Bluetooth (v2.0, v3.0, v4.0 BLE) and Wi-Fi ELM327-based OBD2 scan tools
• Supported Protocols:
- ISO 15765-4 (CAN 11-bit / 29-bit, 250k / 500k baud)
- ISO 14230-4 (KWP2000 fast and 5-baud init)
- ISO 9141-2 (Chrysler, European, and Asian vehicles)
- SAE J1850 (PWM and VPW Ford / GM protocols)
• Integrated Vehicle Simulation Engine: Test all gauges, PID parameters, graphs, DTC scans, and HUD mode without needing an active vehicle connection

PRIVACY & INTEGRITY
• 100% Ad-Free: Zero banner ads, zero video popups
• No Account Required: Diagnostic logs are stored locally on your device
• Offline First: Works completely without an active internet connection

Recent changes:
Welcome to OBD2 Scanner Pro v11.0 (3.8)
• Real-time cockpit dashboard with responsive tachometer sweep boost gauges.
• 42 live engine telemetry sensors with real-time waveform sparkline graphs.
• Read and clear Diagnostic Trouble Codes (DTCs) with SAE fault descriptions and freeze frame telemetry.
• Windshield Heads-Up Display (HUD) projection mode.
• Full support for standard Bluetooth and Wi-Fi ELM327 OBD-II adapters.
• Service Reminders and Maintenance History.
• Performance Tests.