> For the complete documentation index, see [llms.txt](https://docs.macchina.cc/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.macchina.cc/product-documentation/a0-docs/troubleshooting.md).

# Troubleshooting

## SavvyCAN Connection

Follow the quick start guide to connect to SavvyCAN.

{% hint style="danger" %}
This should be done while A0 is powered on but not connected to a vehicle, such as through the USB cable.
{% endhint %}

Go to Send Frames->Fuzzing, click start fuzzing and then stop fuzzing to send random CAN frames.

![](/files/-MFHPUbnX3MPCU95ktss)

Back in the main window, the frames sent by fuzzing should be listed.

![](/files/-MFHPii1RBlb9lsI-1Iz)

#### View CAN Traffic in a Vehicle!

After this step you're ready to move your A0 to a vehicle and connect to it using the same steps as above (you may want to enable Listen Only to avoid any accidents at first).