Diagnosis shouldn't depend on who's on the lift.
CarSignal gives every tech the same diagnostic edge. From scan to paid invoice, one system runs the entire job.
Free during early access · No credit card required · Built by shop people
Diagnosis Is Guesswork
Techs search forums and swap parts hoping to get lucky. No structured process, no confidence ranking, just trial and error.
Experience Walks Out the Door
When your senior tech leaves, their diagnostic instinct leaves with them. Nothing is captured or transferable.
Comebacks Kill Margins
Wrong diagnosis means wrong parts ordered, labor wasted, and a customer who doesn't come back.
No Visibility Into Performance
How many diag hours per job? What's your first-fix rate? Most shops have no idea.
How It Works
One job. No dropped balls.
Scan
Plug in a BLE OBD2 adapter. VIN, fault codes, mileage, and live engine data flow into CarSignal from your phone. One tap creates the job.
Diagnose
AI ranks probable causes by confidence, cross-referencing codes, symptoms, mileage, and known failure patterns for that exact platform. Smart follow-up questions sharpen the diagnosis in real time.
Approve
One button sends the customer a plain-English explanation of what's wrong, why it matters, and what it costs. They read it, ask questions if they have any, and type their name to approve. No phone tag.
Repair
Repair Buddy walks your tech through the fix. Torque specs, tool lists, common mistakes, and TSBs pulled live. Step by step, nothing missed.
Track
The customer gets a live status page. Scheduled, In Progress, Ready for Pickup, Complete. They know exactly where their car is without calling the shop.
Invoice
Professional invoice generated automatically. Parts, labor, tax, markup, legal disclaimer. Emailed to the customer in one click.
Your customer always knows what's happening.
Most shops lose customers not because of bad work, but because of bad communication. CarSignal handles it automatically.
They stop calling.
Customers get a live status page after approval. They know exactly where their car is without picking up the phone.
They approve faster.
One button sends a plain-English explanation of the diagnosis and the cost. They read it, ask questions if they have any, and type their name to approve. No phone tag, no back and forth.
They trust the bill.
Prices lock the moment they approve. No surprises, no disputes, no awkward conversations at pickup.
They come back.
Shops that communicate well get reviewed well. Shops that get reviewed well fill their bays.
Fully Loaded
Everything a shop needs.
AI Diagnostics
Type the symptom. AI ranks every probable cause by confidence, cross-referenced against codes, mileage, and known failure patterns for that exact platform. Not a guess. A ranked differential.
Repair Buddy
Once you know the cause, Repair Buddy walks the fix. Torque specs, tool lists, common mistakes, TSBs pulled live. Your newest tech works like your best tech.
OBD2 Scanner
Plug in. The iOS app reads VIN, fault codes, and live engine data over Bluetooth. One tap creates the job in the web app. No typing, no errors.
Customer Approval
One button sends the customer a plain-English breakdown of what's wrong and what it costs. They approve with their name. Prices lock. No phone tag, no disputes.
Live Status Tracking
Every customer gets a live page after approval. They see exactly where their car is. They stop calling the front desk.
Quoting and Invoicing
Parts, labor, markup, tax, environmental fees. All calculated. Professional invoices emailed in one click. Multi-tech, multi-role shop management built in.
Ready to run a tighter shop?
Free during early access. No credit card required. Setup takes five minutes.