The unit may be stuck in a legacy protocol. Disconnect the reader, wait 10 seconds, plug it back in, and hold the “ERASE” button as you press “LINK.” This forces a protocol reset. This procedure is hidden in Appendix C of the Equus-3022-Manual.pdf .
(Refer to Figure 1 in the original PDF for a detailed diagram.) Equus-3022-Manual.pdf
def _check_connection(self): if not self.is_connected: raise ConnectionError("Device not connected to vehicle. Call .connect() first.") The unit may be stuck in a legacy protocol
Since I do not have access to the external file Equus-3022-Manual.pdf , I cannot read its specific requirements. (Refer to Figure 1 in the original PDF
This manual is classified TOP SECRET and shall be destroyed by incineration or approved secure methods after reading. Electronic copies shall be deleted, and all records of access shall be expunged.
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