Online steering wheel test
Check steering, pedals, buttons, centering, jitter, and axis range without installing extra software.
Start testWhat can you test?
The tester starts automatically as soon as a steering wheel is detected and keeps running until you leave the page. It reads Gamepad API data including steering, pedal axes, buttons, paddles, and other inputs exposed by the driver. Pedal axes can still be mapped manually when needed.
The tester also supports rigs where the wheel, pedals, or shifter appear as separate controllers. ACC64 displays every device exposed through the Gamepad API, and throttle, brake, and clutch can be mapped from the whole rig. Positive and negative axis directions are available for pedals that share a combined axis.
The result is diagnostic information, not a certificate of mechanical condition. A browser cannot measure Force Feedback torque, mechanical play, electronics temperature, or internal component wear unless those issues affect the input signal reported to the operating system.
FAQ
How do I start the test?
Connect the steering wheel to your PC by USB and open the tester. As soon as the browser detects it, the test starts automatically and keeps running until you leave the page.
Can it test pedals?
Yes. The test continuously watches axis movement. If the pedal axes are not identified as expected, you can assign them manually.
Can it test Force Feedback?
Only partially. If the browser and driver expose a supported haptics interface, the tester can send a simple test signal. If that interface is unavailable, it does not mean Force Feedback is broken.
Will it work with separate pedals or a shifter?
Yes, when the browser exposes them through the Gamepad API. ACC64 detects all visible controllers and lets you choose pedal axes from a separate USB device. Shifter buttons are shown in the raw input data for the whole rig.
Why does the browser not detect my wheel immediately?
The Gamepad API may expose a device only after the first interaction. After connecting it, move the wheel or press a button. If it still does not appear, use “Detect wheel” and check the USB connection and driver.
Does the tester work with Logitech G29, G920, G923, Thrustmaster, Fanatec and MOZA?
Yes, when the operating system and browser expose the model through the Gamepad API. Drivers can map axes and buttons differently, so ACC64 also shows raw input and lets you select pedal sources manually.
Does a low observed steering range mean the wheel is faulty?
Not necessarily. First turn the wheel as far as possible in both directions. Driver range settings, a game profile, or simply not reaching full lock can lower the observed value. ACC64 does not treat an incomplete range test as a confirmed fault.