Ask a question or select a feature from the dropdown.
Go to scanfixai.com and click Windows 64-bit (or 32-bit for older computers). About 110 MB.
Right-click the downloaded file and select Extract All. Choose where to put it (Desktop works fine).
Open the folder and double-click ScanFixAI.exe. The app opens in its own window.
First time only — click More info then Run anyway. Normal for all new software.
Right-click ScanFixAI.exe and select Pin to taskbar for quick access.
When prompted, tap Settings and enable Allow from this source.
Open the downloaded file, tap Install, then Open.
Tap Allow when asked — required to communicate with your OBD adapter.
Find the OBD2 port under your dashboard (near the steering column). Push the adapter in firmly. A light on the adapter indicates power.
Turn ignition to ON (or press start without the brake). Engine doesn't need to be running for scanning, but should be running for live data.
Windows: Click Connect, select your adapter's COM port, click Connect.
Android: Make sure Bluetooth is on, tap Connect, select your adapter. If not listed, pair it first in Bluetooth settings (code: 1234).
Takes a few seconds. You'll see "Connected" at the top when ready.
OBDLink MX+ ($99) for best experience, or OBDLink CX ($59) for great value. Basic ELM327 adapters ($15-25) work for standard diagnostics.
Go to scanfixai.com/pricing. Choose Monthly ($29.99) or Annual ($249.99). Enter your email and pay.
Your license key appears on screen (SFAI-XXXX-XXXX-XXXX-XXXX) and is emailed to you. Save it!
Open ScanFixAI, go to the License tab, paste your key, click Activate. All Pro features unlock immediately.
To switch devices, deactivate on the old device first (License tab → Deactivate), then activate on the new one.
The Dashboard is your home screen. It shows your connection status, vehicle info, and quick actions.
Shows whether you're connected to a vehicle and which adapter you're using. Click Connect or Disconnect here.
After connecting, shows your VIN, year, make, model, and engine. This is read directly from your vehicle's computer.
Click Full Scan to scan every module in your vehicle. Results appear in the Trouble Codes tab.
Shows scan results at a glance — number of modules found, codes detected, and overall vehicle health.
After scanning, all trouble codes appear here grouped by module (Engine, Transmission, ABS, Airbags, Body, etc.).
Each code shows what it means, the most common causes, and what to check first.
After fixing the issue, click Clear Codes to turn off the check engine light. Only clear after the repair is done.
Clearing codes resets emissions monitors. If you have an upcoming emissions test, drive 50-100 miles after clearing for monitors to complete.
Live data requires the engine to be running. Connect to the vehicle and start it.
Check the boxes next to the parameters you want: RPM, Coolant Temp, Fuel Trims, MAF, Throttle Position, Battery Voltage, Oil Temp, and more.
Values update continuously. Toggle between bar gauges and numeric display. Great for diagnosing intermittent issues while driving.
Free: 5 PIDs. Pro: all 68+ PIDs including manufacturer-specific data.
Run a Full Scan so the AI has your codes, module data, and vehicle info.
The AI cross-references all codes across all modules to find the root cause, not just what each individual code means.
Includes: root cause, confidence level, recommended fixes in order of likelihood, estimated repair cost, and severity (safe to drive or not).
You can use AI Mechanic anytime — it doesn't require a vehicle connection or adapter.
Type your question: "What does P0171 mean on a 2015 F-150?", "How do I change spark plugs on a 2018 Camry?", "Is it safe to drive with ABS light on?"
The AI mechanic gives detailed, vehicle-specific answers with step-by-step repair guidance.
Shows every computer module in your vehicle that responded to the scan.
After scanning, see all responding modules: PCM (engine), TCM (transmission), ABS, ACM (airbags), BCM (body control), IPC (instrument cluster), and more.
Click any module to see its part number, software version, hardware version, and calibration ID.
Command your vehicle's systems to perform specific tests. Engine must be running.
Browse available tests for your vehicle: fuel injector tests, relay activation, solenoid tests, fan control, etc.
Click to activate. The vehicle's computer will perform the test. Listen/watch for the component to respond.
Active tests command real vehicle components. Use only when the vehicle is safely parked with the parking brake set.
Organized by category: Lighting, Comfort, Displays, Locks, Sound, etc. Shows options available for your specific vehicle.
Each option describes what it does, which module it modifies, and whether it's been verified on real vehicles.
Select the new value and click Apply. Changes take effect immediately and can be reversed.
DRL brightness, needle sweep, comfort turn signals, auto-fold mirrors, digital speedo, disable seatbelt chime.
Read and write the factory configuration stored in your vehicle's modules. Similar to FORScan's as-built feature.
Select a module and click Read. Shows the raw hex configuration data stored in that module.
Compare your vehicle's current configuration against the factory default to see what's been changed.
Modify specific bytes and write them back. Field descriptions explain what each byte/bit controls.
Incorrect as-built changes can affect vehicle operation. Only modify values you understand. Always save a backup of the original data first.
Reset service indicators and perform maintenance procedures.
Available resets include: Oil Life Reset, Battery Registration, Brake Pad Reset, Steering Angle Calibration, Throttle Relearn, Transmission Adaptation Reset, and more (59 total across all makes).
Each reset shows prerequisites (engine on/off, wheels straight, etc.) and what the reset does.
The reset is sent to the vehicle's module. Confirmation appears when complete.
Read tire pressure monitoring system data and perform sensor relearn procedures.
See real-time tire pressures, temperatures, and sensor IDs for all four tires (plus spare if equipped).
After rotating tires or replacing sensors, use the relearn procedure to teach the vehicle the new sensor positions.
Scan the vehicle to get all codes, module data, and VIN information.
Click to create a Pre-Purchase Inspection PDF. Includes health score, all codes, mileage verification across modules, and a BUY / CAUTION / DON'T BUY verdict.
The report compares mileage stored in different modules (engine, transmission, ABS, cluster). Mismatches indicate possible odometer rollback.
If most monitors show "Not Ready," someone recently cleared codes to hide problems — major red flag.
Voice-guided diagnostic drive — ScanFixAI monitors your vehicle, finds issues, pulls you over, fixes them, and verifies the fix.
Choose from Quick Health Check, Test Everything, Used Car Inspection, Smog Pre-Check, or pick individual tests.
ScanFixAI monitors your vehicle in real time — fuel trims, transmission, boost, O2 sensors, idle stability, and more.
The AI speaks to you: "I found a fuel trim imbalance. Please pull over safely when you can." It waits until you've stopped.
Once stopped, ScanFixAI applies the correction — clears codes, runs relearns, writes as-built adjustments, or recalibrates sensors. You'll hear "Fix applied."
"Please resume driving." The AI monitors to confirm the fix worked. If the issue is resolved, it moves to the next test. If not, it tries an alternative approach.
When all tests are complete, get a full report of everything tested, issues found, fixes applied, and verification results.
Graphs live data over time so you can spot patterns and intermittent issues.
Choose up to 4 parameters to plot on the same time axis.
Data scrolls across the screen like an oscilloscope. Spikes, drops, and patterns become visible that you'd miss in numeric view.
Record a session and export to CSV for analysis in Excel or other tools.
Time your 0-60 mph, quarter mile, and other acceleration runs using real OBD data.
Choose 0-60, 0-100, quarter mile, or custom distance.
Come to a complete stop, arm the timer, then go. The timer starts automatically when you move and stops at the target.
Track your fuel consumption, MPG, trip costs, and driving efficiency.
Shows real-time MPG, average MPG, fuel used, and estimated range remaining.
Record when you fill up to track cost per mile and fuel economy trends over time.
Uses your phone's accelerometer to measure lateral and longitudinal G-forces.
Place your phone on a flat surface and tap Calibrate to zero out the sensors.
See real-time G-forces during acceleration, braking, and cornering displayed on a skidpad visualization.
Create your own gauge layout with the data you care about most.
Pick which PIDs to display and choose the gauge style (radial, bar, numeric).
Drag and resize gauges to create your perfect dashboard view.
Save multiple dashboard layouts and switch between them.
Record GPS trips with OBD data correlation. Export as GPX or CSV.
Tap Start Trip when you begin driving. GPS location and OBD data are recorded together.
See your route on a map with speed, RPM, and engine data overlaid at each point.
Continuously records OBD data in the background. Like a dashcam for your engine.
Turn on the flight recorder. It continuously saves OBD data in a rolling buffer.
If something goes wrong (stall, misfire, warning light), review what the engine was doing in the moments before. Invaluable for diagnosing intermittent problems.
After scanning, ScanFixAI checks your VIN against the NHTSA recall database (95,000+ complaints, 1,200+ recalls).
See any open recalls for your specific vehicle, what's affected, and what the dealer will fix for free.
Critical recalls that mean you should stop driving immediately are highlighted in red.
Maintenance schedule based on your vehicle's make, model, and mileage.
Shows what's due now and what's coming up: oil changes, filters, spark plugs, transmission fluid, brake fluid, coolant, timing belt, etc.
Intervals are specific to your make/model. Covers 22 makes and 16 maintenance items.
Compare cylinder performance using live misfire data and relative compression.
Engine must be running. The test reads misfire counters and cranking RPM variations across all cylinders.
Weak cylinders show up immediately. Helps identify worn rings, bad valves, or failing head gaskets without a compression tester.
Noise, Vibration, and Harshness diagnostic guide. Helps identify the source of unusual sounds or vibrations.
Select when the noise/vibration occurs: at idle, while driving, during braking, when turning, etc.
The system walks you through likely causes based on your symptoms and vehicle data.
Background monitoring that alerts you if a new check engine code appears.
Turn on CEL Monitor while connected. It periodically checks for new codes in the background.
If a new code appears, you'll get an alert with the code explanation immediately — no need to manually scan.
Reference wiring diagrams and connector pinouts for common circuits.
Choose from engine, lighting, charging, starting, sensors, and more.
Shows wire colors, connector locations, and pin assignments. Use alongside a multimeter for electrical diagnosis.
Find where sensors, relays, and modules are physically located on your vehicle.
Type what you're looking for: "MAF sensor", "fuel pump relay", "BCM location", etc.
Shows where the component is located with description and a link to view reference photos.
Help choosing the right OBD adapter for your needs.
Bluetooth, works with all makes, fast, reliable. $99. Our top recommendation.
Bluetooth, great performance at a lower price. $59.
$15-25. Works for standard OBD-II diagnostics. May be slower and miss some enhanced features.
Cheap $5-10 ELM327 clones from Amazon/eBay. They often have firmware issues that cause connection problems and incomplete data.
Program new keys and fobs to your vehicle. Availability depends on make/model and security level.
Not all vehicles support key programming via OBD. ScanFixAI shows whether your vehicle supports it.
The app walks you through the steps. You'll typically need the new key physically present and may need an existing working key.
Key programming involves vehicle security systems. Follow all instructions carefully.
Read and write ECU calibration data. For advanced tuning and module replacement.
Download the current calibration file from your ECU. Always make a backup before any changes.
Upload a modified calibration file. Used for performance tuning or restoring a replacement module to your vehicle's configuration.
Incorrect ECU flashing can render your vehicle inoperable. This feature is for experienced technicians and tuners only. Always backup first.
AI-assisted performance tuning. Analyze your current tune and get optimization suggestions.
ScanFixAI reads your ECU's current calibration and identifies key parameters (timing, fueling, boost, rev limits).
The AI analyzes your parameters and suggests safe optimizations based on your engine platform and modifications.
Tuning changes can affect emissions compliance and engine longevity. Use at your own risk.
Advanced Driver Assistance System calibration after windshield replacement or camera/sensor work.
After windshield replacement or body work, ADAS cameras and sensors may need recalibration. ScanFixAI shows which systems are affected.
Static calibrations can be done in a controlled environment. Dynamic calibrations require a test drive on specific road types.
Save and manage multiple vehicles. Give each one a nickname and track its history.
When you scan a vehicle, it's automatically added to your garage with its VIN, year, make, and model.
Tap on a vehicle in the garage to give it a name like "Dad's Truck" or "Shop Car #3".
View scan history, codes, and reports for any vehicle you've previously scanned.
Track codes and repairs over time for each vehicle in your garage.
See every scan, every code, and every action taken on this vehicle in chronological order.
Compare scans before and after repairs to verify the fix worked.
View results from all previous scans.
Each scan is saved with date, vehicle, modules found, and codes detected.
Compare two scans side by side to see what changed — new codes, cleared codes, or module differences.
Access Ford's Medium-Speed CAN bus for body modules that aren't on the standard high-speed bus.
MS-CAN access requires an OBDLink MX+ or OBDLink EX adapter. Standard ELM327 adapters cannot switch buses.
Read BCM, IPC, HVAC, DDM, PDM, and other body modules on Ford vehicles that only communicate on the MS-CAN bus.
Diagnostics for diesel trucks and heavy-duty vehicles using J1939 protocol.
Ford Super Duty (6.7L Power Stroke), RAM (6.7L Cummins), GM (Duramax), and Class 4-8 trucks.
DPF status, regen cycles, DEF levels, turbo boost, exhaust temps, injection timing, and more.
Initiate a parked DPF regeneration when the filter is clogged. Requires specific conditions (engine temp, parking brake, etc.).
Shows your current tier (Free or Pro), expiration date, and device binding.
Paste your license key and click Activate. Pro features unlock immediately.
Click Deactivate to free up your license for use on another device.
Monthly licenses last 30 days. Annual licenses last 365 days. No auto-renewal — repurchase when expired.
Click Disconnect, wait 5 seconds, click Connect again.
Close ScanFixAI completely and reopen it.
Must be ON, not just accessory mode. Some vehicles need the engine running.
Add ScanFixAI.exe to your antivirus exceptions list. Some antivirus software blocks new applications.
Email support@scanfixai.com with your issue, vehicle (year/make/model), and adapter type. We respond within 24 hours.