OBD2 Car Scanner: OBDAssistant

Check engine light on? Plug in any ELM327 Bluetooth or BLE OBD2 adapter, tap Scan, and OBDAssistant tells you what is wrong in plain English: how serious the fault code is, whether your car is safe to keep driving, and what to check first.

Turn your phone into an AI-powered OBD2 car scanner, fault code reader, and live data diagnostic tool — built for everyday drivers, DIY mechanics, used-car buyers, and enthusiasts.

🔍 OBD2 FAULT CODE READER & CHECK ENGINE SCANNER
• Read stored, pending, and permanent diagnostic trouble codes (DTCs) via OBD2 and SAE J1979-2 (OBD on UDS)
• Plain-English explanation for every P, C, B, and U code — no confusing workshop jargon
• Instant "Safe to Drive?" verdict (Safe, Caution, or Stop Driving) and severity rating
• Automatic Freeze Frame snapshot showing engine RPM, coolant temp, speed, load, and fuel trims when the fault occurred
• Clear fault codes and reset the Check Engine Light (MIL) after a repair (Pro)

🤖 AI TECHNICIAN – AUTOMATIC CAR DIAGNOSTICS
Unlike a basic code reader that only lists code numbers, OBDAssistant diagnoses every scan automatically:
• Combines active fault codes, freeze-frame data, live sensor snapshot, vehicle profile, and verified repair outcomes
• Ranks the most likely root causes with confidence percentages and cited sensor evidence from your vehicle
• Runs Guided Live-Data Tests (Pro) that stream real-time ECU sensors to verify suspect parts (MAF airflow vs. RPM, fuel trim response, O2 switching, or charging voltage) and refine the diagnosis
• Ask follow-up questions in plain English in an AI mechanic chat anchored to your car's real telemetry

📊 REAL-TIME LIVE DATA GAUGES & ANOMALY ALERTS
• Stream live OBD2 sensors: Engine RPM, speed, coolant temp, intake air temp, Short & Long Term Fuel Trims (STFT/LTFT), O2 & wideband lambda sensors, MAF airflow, MAP / turbo boost pressure, throttle position, timing advance, battery & alternator voltage, and diesel DPF / exhaust gas temperature (EGT) sensors
• On-device Live Anomaly Watcher flags sustained abnormal readings (overheating, weak charging, or fuel trim drift) automatically
• Check I/M Emissions Readiness monitors (catalyst, O2, EVAP, EGR, misfire) before a smog check or inspection

🚗 AUTOMATIC VIN RECOGNITION & DIGITAL GARAGE
• Reads your car's VIN and ECU signature on every connection so households or workshops sharing one OBD2 adapter never mix scan history, fuel type, or profiles
• Track per-vehicle diagnostic history, service reminders (with calendar sync), VIN-matched replacement parts lookup, and modifications
• Ideal for pre-purchase used car inspections: spot recently cleared codes, incomplete readiness monitors, or hidden pending faults

📄 MECHANIC-READY PDF DIAGNOSTIC REPORTS (Pro)
• Export any scan and AI diagnosis as a clean, shareable PDF report with VIN, odometer, fault codes, freeze-frame data, live readings, and ranked causes so you and your mechanic work from the same facts

🏁 VERIFIED ROAD DYNO & 0–60 PERFORMANCE
• Time 0–60 mph (0–100 km/h) and 1/4 mile runs
• Measure Wheel Horsepower (WHP) with a pre-run readiness checklist, automatic run-quality verification (gear shift, wheelspin, lift-off, slope), SAE J1349 / DIN 70020 weather correction, per-car history, and shareable dyno sheets (closed course or track only)

⚡ FREE VS PRO
• Free: 5 fault-code scans/month, plain-English code meanings, 3 full AI diagnoses/month, live data (3 gauges)
• Pro: unlimited scans, code clearing, guided live-data tests, 40 full AI diagnoses/month (80 on Lifetime), live data (8 gauges), PDF reports, scan history, and multiple vehicles. Monthly, Annual, or one-time Lifetime.

🔌 COMPATIBILITY
Works with ELM327-compatible Bluetooth Classic & BLE OBD2 adapters (OBDLink, Veepeak, KONNWEI, BAFX, Vgate, ELM327). Compatible with OBD2 gas/petrol, diesel, and hybrid vehicles: 1996+ (US/CA), 2001+ petrol / 2004+ diesel (EU/UK), 2006+ (AU/NZ).

Support: obd2assistant.app@gmail.com | https://obdassistant.com

Recent changes:
Major AI Update! • Find Parts Faster: AI now searches the web in real-time for parts, prices & fitment. • Smarter Scanning: AI reads live data & verified mechanic databases for accurate repairs. • Performance & UI tweaks.