DIAGFLOW

Stop guessing.
Start flowing.

The diagnostic platform that thinks like a technician. Guided flowcharts, interactive wiring diagrams, and every known problem for every vehicle, all in one place.

300K+ Independent shops in the US
$150-300 /mo spent on overlapping tools
0 platforms with real flowcharts

The tools you have weren't built for how you think

📚

AllData / Mitchell

Dumps 400-page OEM manuals at you. Great for reference. Useless when you're under a car with a check engine light and 30 minutes on the clock.

🔍

Identifix

Search-based. You need to already know what you're looking for. If you knew the answer, you wouldn't need the tool.

🤖

AI Chatbots

Generic answers from generic models. They've never held a multimeter. They don't know that 2014 Chevy Silverados eat fuel pumps.

CORE FEATURE

Guided Diagnostic Flowcharts

Symptom in, fix out. Every flowchart follows the same logic you use in your head, except it's on screen, step by step, with test values and specs at each node. No guessing which branch to take next.

Engine Misfire P0300
Check spark plugs & coils
PASS
Fuel pressure test
FAIL
Replace coil pack #3
VEHICLE DATABASE

Known Problems. Fast Fixes.

Enter the year, make, and model. Instantly see every documented common failure, TSB pattern, and community-verified fast fix for that vehicle. The stuff that takes 3 years of experience to memorize, available in 3 seconds.

2018 Ford F-150 3.5L EcoBoost
COMMON Cam phaser tick on cold start
FREQUENT Vacuum pump failure (P0087)
KNOWN Blend door actuator clicking
WIRING

Interactive Wiring Diagrams

Not static PDFs from 2004. Click a component, trace the circuit, see pin values. Highlight the path from ECU to sensor. Zoom into the connector you're actually staring at under the dash.

ECU Pin B12
C104
O2 Sensor B1S1
Signal: 0.1V - 0.9V | Wire: GRN/WHT | 20 AWG

Three steps. Every diagnosis.

01

Enter the vehicle

Year, make, model, engine. That's it. DiagFlow pulls everything we know about that vehicle instantly.

02

See known problems

Common failures, TSB patterns, fast fixes. Cross-reference the symptom with what this vehicle is known for. Skip the noise.

03

Follow the flowchart

Step-by-step guided diagnosis with test specs at every node. Confirm the fix. Move on to the next car.

Built by a technician.
For technicians.

The best diagnostic tool already exists. It's the flowchart in the head of a master tech with 20 years of experience. DiagFlow puts that knowledge on screen for every tech, on every car, every time.