Deep Diag
The device and models that let the car speak. DeepDiag reads the car's own signals during a short road test, and physics-informed models turn them into a verdict on engine, battery, suspension and brakes. Every Steer Autos inspection runs on it.
- Plugs into the car's diagnostic port
- Physics-informed models
- Powers every Steer Autos inspection
Why DeepDiag?
A walk-around sees the outside. The car knows the rest.
Engines, batteries, suspensions and brakes wear in ways no visual check can see. The car records much of it in its own signals; DeepDiag reads them and makes sense of them.
- The car's own signals are read on the road.
- Physics-informed models interpret them.
- A verdict on engine, battery, suspension and brakes.
- The same measurement, car after car.
- Condition is judged by eye and by ear.
- Fault codes say what broke, not how worn it is.
- Battery health is a guess.
- Two inspections, two opinions.
- The car's own signals are read on the road.
- Physics-informed models interpret them.
- A verdict on engine, battery, suspension and brakes.
- The same measurement, car after car.
How the car speaks
Read, model, verdict.
A short drive is enough: DeepDiag records how the car behaves, and the models turn the signals into findings you can act on.
- 1
Read
Plugged into the car's port, DeepDiag records its signals while it accelerates, turns and brakes.
- 2
Model
Physics-informed models compare what was recorded with how a healthy car of that kind behaves.
- 3
Verdict
Engine, battery, suspension and brakes each get a clear finding, added to the evidence report.
1
2
Hood closed · read through the car's port
3
41234Illustrative scores · parts shown are representative
On a real car
See the road test from start to report.
The real setup and drive, the 360° exterior and the damage tracking, as they run in Steer Autos today.
A guided road test
Plug in the DeepDiag device, follow the guided drive and the car’s own data is measured on the road.
- Acceleration, U-turn and braking tests, guided step by step
- Suspension, steering, brakes and battery health measured
- The report is ready as soon as the drive ends
What it is
One device, models that understand cars.
DeepDiag is the layer under Steer Autos: the hardware that listens and the models that interpret.
DeepDiag powers every Steer Autos inspection
The device and the models come with every Steer Autos subscription, so each road test feeds the evidence report.
DeepDiag is the data and intelligence layer of Steer AI, the AI infrastructure for the used-car economy.