FINDS THE REAL CAUSE, NOT JUST THE CODE
ScanFixAI reads every module in your vehicle and thinks like a seasoned mechanic — it examines everything connected to a fault to find the real cause, then tells you what to check, what to do, and what not to replace. It’ll even ride along on a Test Drive, watching your live data as you drive and talking you through what it finds — like having a mechanic in the passenger seat.
Plus: reads every module, AI root cause analysis, vehicle coding, used car inspection with odometer fraud detection, and a BUY or DON'T BUY verdict. Works on Ford, GM, Toyota, Honda, Chrysler, BMW, VW/Audi, Mercedes, Nissan, Hyundai, and more.
Free to start — read & clear codes, basic live data, and a daily AI diagnosis. No credit card required.
WHY WE BUILT IT
Diagnosing a car used to mean one tool for codes, another for ABS and airbags, a brand-specific tool for coding, and a subscription for repair data — each doing one job, none talking to each other. We replaced that whole shelf with one program that does what all of them do, and added AI that actually diagnoses the problem instead of just reporting a code.
ALWAYS IMPROVING
When ScanFixAI hits a snag on your vehicle, it can send us an anonymized report automatically — then our AI-assisted process drafts and reviews a fix and delivers it to your app through the built-in updater. No crash report for you to file, no waiting weeks for a patch. It’s how a small team ships fixes as fast as a big one.
Connect and scan your vehicle normally.
Your anonymized report is analyzed and a fix is drafted.
A fix is written and independently reviewed before it ships.
App updates with improvements. You do nothing.
No personal data is ever collected. All telemetry is anonymized. Privacy Policy
Think like a master mechanic. When a scan finds a problem, the AI examines everything connected to that fault to pinpoint the real root cause — then tells you what to do, and what not to replace. No guessing, no parts-cannon.
One tap: Scan My Car. Plain-English results anyone can understand — with every pro tool one tap away when you want it. Simple when you need it, powerful when you don't.
Don't just read codes — understand them. ScanFixAI cross-references DTCs across all modules to find the actual root cause, not just symptoms.
Basic code readers only see the engine. ScanFixAI reads PCM, TCM, ABS, BCM, airbag, steering, APIM, and 19 more — nothing hidden.
No more Googling P0171. ScanFixAI tells you "Both banks running lean — likely vacuum leak, bad MAF, or weak fuel pump" with step-by-step fix instructions.
Built-in tests like the Vacuum Leak Confirmation — samples fuel trims at idle vs. rev and tells you definitively if there's a leak. No smoke machine needed to confirm.
Monitor everything in real-time: fuel trims, coolant & transmission temp, RPM, engine load, O2 sensors and dozens more standard sensors on any vehicle, plus enhanced Ford-only PIDs like boost pressure, turbo RPM and wastegate position — with anomaly detection.
Read current as-built data from any module and compare it side by side against factory values. Changed bytes are highlighted in orange so you can see exactly what's been modified. Ford: automatic factory lookup via Motorcraft by VIN. BMW: reads the factory order (FA) directly from the vehicle. All other makes: auto-saves a baseline on first read for future comparison. Reading and comparing works on every make today; writing edited values back to a module is in preview and unlocks for a vehicle only after we’ve verified the write on a real car — we never guess with your ECU.
Guided coding — DRL, needle sweep, digital speedometer, comfort close, launch control and more — is rolling out in preview. Each option unlocks for your vehicle only once we’ve verified the write on a real car, module by module, starting with Ford, GM, BMW and VW/Audi. You can read and compare your coding today — we’d rather ship it verified than guess. Some modules and functions stay dealer-only by design: Ford’s Secure Gateway on 2018+ vehicles, PATS key programming, and OEM-locked reflashing are protected by manufacturer security that no aftermarket tool — ForScan included — can bypass. The app is upfront when your vehicle hits that limit.
Like having a master tech riding shotgun. Drive mode monitors your vehicle in real-time, detects issues on the road, talks to you through your speakers, and tells you when to pull over — then walks you through the fix.
Every scan is saved by VIN. Track how your vehicle changes over time, compare past scans, and prove to a buyer or mechanic exactly what was fixed and when.
Test your battery and charging system. Checks voltage, state of charge, and alternator output. Know if your battery is dying before you get stranded.
Don't get scammed. ScanFixAI compares odometer readings across every module in the car — if the dash says 60K but the transmission computer says 120K, the odometer was rolled back. Also checks if someone recently cleared codes to hide a check engine light (incomplete readiness monitors = red flag). Tests battery health, scans all modules for hidden problems, and gives you a health score with a clear BUY, CAUTION, or DON'T BUY verdict. Print the report and negotiate the price down — or walk away.
Add your shop name, logo, and contact info to every health report. Hand customers a professional printout that looks like a $5,000 diagnostic setup.
Replacing a module? ScanFixAI reads and backs up the old module’s configuration so it’s saved safely. Writing it onto the replacement is in preview and unlocks per-vehicle once verified on a real car — on many modules the final write still needs a dealer tool, and the app tells you honestly when it does.
No adapter? No problem. Describe your symptoms in plain English and the AI mechanic tells you what's likely wrong, what to check first, and whether it's safe to drive. Works without any OBD connection.
Snap a photo of a warning light, a leaking part, or visible damage. AI analyzes the image and tells you what it is, what caused it, and what to do about it.
759 fixes built from real repair data — TSBs, known-good repairs and field experience. When you get a trouble code, ScanFixAI ranks the fixes that most often solve it, so you start with what usually works instead of a random guess.
ScanFixAI automatically checks for open recalls after every scan — no extra step needed. If your VIN has an active safety recall, you'll know immediately. Don't find out about a dangerous defect the hard way.
"Is it safe to drive?" — the first question everyone asks. ScanFixAI rates 163 common trouble codes by severity: Critical (pull over now), Moderate (schedule repair soon), or Low (monitor it). No more panic over a loose gas cap, no more ignoring a failing catalytic converter.
16 maintenance items tracked across 20+ makes with make-specific intervals. Oil, brakes, spark plugs, transmission fluid, coolant, belts, and more — with safety-critical flags so you know which services actually matter for keeping the car reliable vs. which ones the dealer is just trying to sell you.
Running a used car check? Generate a professional PDF inspection report with health score, mileage verification, code history, and a clear BUY/CAUTION/DON'T BUY verdict. Hand it to the seller or keep it for your records.
Heads-up display mode for driving. Shows speed, RPM, coolant temp, and active warnings in a clean, glanceable layout designed for the road.
Automatically logs your trips with GPS tracking. Review routes, distances, and driving stats. Great for mileage tracking, fleet management, or just seeing where you've been.
Track real-time and average fuel consumption using live OBD data. See how your driving habits affect fuel economy and find out what's costing you at the pump.
Search a database of 95,630 real complaints filed with NHTSA by actual vehicle owners. See what problems other people are having with your exact year, make, and model — before they happen to you.
Every service reset and bidirectional function shows a confidence badge: VERIFIED (confirmed via CAN captures on real vehicles), COMMUNITY (reported working by users), or EXPERIMENTAL (untested). We don't pretend everything works perfectly on every car — we tell you exactly what's been proven. Verified coverage: Ford, GM, BMW, VW/Audi. Growing daily from user reports.
See why ScanFixAI is the best value in car diagnostics
| Feature | ScanFixAI | Carly | FORScan | BlueDriver | FIXD |
|---|---|---|---|---|---|
| AI Root Cause Analysis | Yes | No | No | No | No |
| Vehicle Coding Options | 12 automakers deep + any 1996+ OBD-II (read/compare; writes in preview) | Limited presets | Full hex editing | No | No |
| Plain English Explanations | Yes | Yes | Raw hex | Yes | Basic |
| Guided Diagnostic Tests | Yes | No | No | No | No |
| Used Car Inspection | Mileage fraud + health score | Basic check | No | No | No |
| Battery Health Check | Yes | Yes | No | No | No |
| As-Built Read & Compare | All makes + Ford factory fetch | No | Ford only | No | No |
| Module Swap Assistant | Read/backup; write in preview | No | Manual | No | No |
| TSB Database | Yes | No | No | Fix reports | No |
| Health Report (printable) | PDF with shop branding | No | No | Basic | No |
| Live Drive Mode with Voice | Yes | No | No | No | No |
| AI Mechanic Chat (no adapter) | Yes | No | No | No | No |
| Photo-Based Diagnosis | Yes | No | No | No | No |
| Fix Probability Database | 759 real fixes | No | No | Fix reports | No |
| NHTSA Recall Lookup | Yes | No | No | No | No |
| NHTSA Complaints Database | 95,630 complaints | No | No | No | No |
| HUD Mode / Trip Logging | Yes | No | No | No | No |
| Pre-Purchase Inspection PDF | Yes | No | No | No | No |
| Service Functions | 36+ (verified: Ford, GM, BMW, VW) | Limited | Yes | No | No |
| DTC Severity Ratings | 163 codes rated | No | No | No | No |
| Auto Recall Check | After every scan | No | No | No | No |
| Price | Free / $29.99/mo or $249.99/yr | $80/yr + $50 adapter | $20-50/yr | $85-120 | $20 + $100/yr |
Connect an OBD2 adapter to your vehicle's diagnostic port (under the dash, driver side).
Open ScanFixAI and hit Scan. It reads every module in under 60 seconds.
AI analyzes your codes, cross-references across modules, and tells you exactly what's wrong and what to fix first.
Follow the prioritized fix list. Run guided tests to confirm. Clear codes when done.
Meaning, symptoms, causes and repair cost for 500+ OBD2 codes across all makes.
ALWAYS IMPROVING
ScanFixAI is built and improved continuously — and every update is included in your subscription, free. The knowledge base grows every week, we verify more makes on real vehicles, and the features now in preview (like guided coding writes) are being actively developed and validated. We only ever move a feature out of preview once it genuinely works on a real car.
New features are on the way — and we’ll only ever tell you something works once it actually does.
Start free. Upgrade when you need more.
ScanFixAI works with most ELM327-compatible adapters. For the best experience, we recommend:
USB connection. Fastest communication. Full support for HS-CAN and MS-CAN — reads all modules across all makes.
Full feature support:
Bluetooth connection. Works with Android phones and tablets. Full HS-CAN and MS-CAN support. No wires — pair and scan.
Scanning & diagnostics:
Note: Cheap $12 ELM327 clones cannot read MS-CAN modules and don't support advanced features. You'll miss half the vehicle's data and functionality.
🚀 It’s here — ScanFixAI 5.0 is live!
Free to download — no credit card required. Grab it below and start diagnosing. New in 5.0: the AI Coding Assistant and the Used-Car / Pre-Purchase Report.
Windows: Extract the zip, open the ScanFixAI folder, and double-click ScanFixAI.exe to start.
Android: Standalone Bluetooth app — connects directly to your OBD adapter.
📱 Now on the Google Play Store!
Get our official app “ScanFixAI - Car Diagnostic” straight from Google Play — automatic updates included. (The Android (APK) button above is the same app if you prefer a direct install.)
GET IT ONFirst time running on Windows?
Windows may show a "Windows protected your PC" message. This is normal for all new software. Click More info then Run anyway. This only happens once.
Deep multi-module coverage on 12 automakers (26+ brands): Ford, GM, Toyota/Lexus, Honda/Acura, Chrysler/Dodge/Jeep/Ram, BMW, VW/Audi, Mercedes-Benz, Nissan/Infiniti, Hyundai/Kia/Genesis, Subaru, Mazda. EV diagnostics included. Generic OBD-II on all vehicles 1996+.