Your car speaks.
You just listen.
TCW2 Chat Fix turns OBD diagnostics into a conversation. Plug in your adapter, ask what's wrong, and get clear answers — not cryptic code lists.
Works with ELM327 USB/Bluetooth, WiFi dongles, and VLinker adapters.
Three steps. No manual required.
We walk you through connecting your adapter — then the chat takes over.
Assisted connect
Pick your adapter type — ELM327 over USB or Bluetooth, a generic WiFi dongle, or VLinker. TCW2 guides you through pairing step by step with live status checks.
Chat, don't decode
The chat window is the whole app. Ask in plain English: "Why is my idle rough?" or "Is this code urgent?" AI reads live sensor data and explains what it means.
Fix with confidence
Get ranked causes, suggested checks you can do in the driveway, and estimated repair costs. Export a summary for your mechanic if you need a pro.
Bring your own dongle
Already have an OBD adapter? TCW2 probably works with it.
ELM327 USB
Wired connection for Windows laptops. Plug and go.
ELM327 Bluetooth
Classic BT pairing with guided troubleshooting.
WiFi dongle
Connect to the adapter's WiFi network — we handle the rest.
VLinker
Full support for VLinker MC+, FS, and BM series adapters.
Mechanics who've tried it
Real feedback from independent shops during the beta program.
"I handed this to a customer who kept calling about every warning light. She figured out her own gas cap issue in five minutes. That's five minutes I got back."
"The chat actually reads live data, not just code definitions. I use it as a second opinion before I start throwing parts at a car. Saves me diagnostic time."
"VLinker pairing was smoother than I expected. My only ask is Android tablet support — but on Windows it's already better than the $200 scan tool I was using."
Simple plans. Free right now.
We're in beta — full access is unlocked for early adopters. Paid tiers launch when we're ready.
Home Mechanic
- Unlimited chat diagnostics
- ELM327 USB, BT, and WiFi support
- Live sensor data reading
- Code history and export
- Windows desktop app
Pro Shop
- Everything in Home Mechanic
- Multi-vehicle session history
- Customer-facing chat summaries
- VLinker advanced PIDs
- Priority AI response queue
- Android app (sideload APK — WiFi/BT/USB OBD)
🎉 Beta paywall bypass active — all features are unlocked at no charge. No credit card required. When billing goes live, beta users get 3 months of Pro Shop free.
Payments powered by Stripe. Subscriptions will be managed securely at checkout — not available during beta.
Ready to talk to your car?
Download TCW2 Chat Fix for Windows. Android beta opens soon.
Get TCW2 Chat Fix