OBDAI OBD2 Scanner & ELM327 AI

About this app

Turn any compatible Bluetooth or Wi-Fi ELM327 adapter into an intelligent vehicle diagnostic system. OBDAI combines live OBD2 data with ARIA, an automotive reasoning agent that explains what the vehicle is reporting in plain English, remembers previous inspections, and creates professional diagnostic reports. MONITOR TESTS — THE ENGINE'S OWN REPORT CARD Read the Mode 6 self-tests run by the engine computer: catalyst efficiency, oxygen sensor response, EVAP, EGR, misfire, and more. OBDAI shows the vehicle's actual result and manufacturer limit, per ECU, without invented health scores. TRENDS ACROSS DRIVES ARIA preserves Monitor Test readings with each session. Ask whether a catalyst or sensor test is drifting toward its limit and ARIA compares the same evidence across recorded drives. DRIVE-CYCLE INTELLIGENCE OBDAI reads in-use performance counters and since-clear history so ARIA can explain whether the evidence represents one short drive or thousands of monitoring opportunities. When inspecting a used car, near-zero distance after codes were cleared is clearly identified. TALK TO ARIA Use hands-free conversation mode while working. ARIA listens, answers aloud, and listens again. Automotive speech recognition understands terms such as DTC, fuel trim, freeze frame, MAF, EVAP, and catalyst. SHOW ARIA WHAT YOU SEE Send photos of dash warnings, VIN plates, multimeter readings, scope waveforms, invoices, leaks, and components. ARIA combines images with live telematics, diagnostic history, and conversation context—and can ask for a photo when it would help. ARIA REMEMBERS Ask follow-up questions without starting over. Persistent vehicle memory keeps findings, declined work, and next steps available across sessions and supported devices. FREEZE FRAME DATA Read the sensor snapshot captured when a diagnostic code set. ARIA uses operating conditions such as engine speed, load, temperature, and fuel trim to provide useful context instead of simply repeating a code definition. PROFESSIONAL REPORTS Create AI-authored inspection documents with findings, recommendations, next steps, and vehicle identification. Share them with a mechanic, customer, buyer, or fleet record. OBD2 SCANNER FEATURES • 220 live parameters from SAE J1979DA • Stored, pending, and permanent diagnostic trouble codes • EV and hybrid battery, charge, and motor data where supported • Diesel NOx, DPF, SCR, DEF, and AECD data where supported • Emissions readiness, custom dashboards, and trip analysis COMPATIBILITY Supports OBD2-compliant 1996+ gasoline vehicles, 2004+ diesel vehicles, and compatible EV/hybrid data. Works with supported Bluetooth and Wi-Fi ELM327 adapters and common CAN, ISO15765, KWP2000, ISO9141, and J1850 protocols. No ads. No data resale. Encrypted cloud sync. obdai.app | support@obdai.app

Every Module, Every Code • Faster live data: up to six sensor readings per exchange with the OBDAI GEN2 adapter. • Emissions readiness now checks every computer in your car—not just the engine—before calling it test-ready. • ARIA sees fault codes and sensor data from every module, not only the engine controller. • The fault-code library now covers all 19,216 standard codes with real descriptions. • New Metric / US units setting converts every list and gauge. • Fixes: chat errors after double-tapping send; under-the-hood update to the latest platform.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

1. First observed Sep 3, 2026 · 1:10 AM Free