THEFT PREVENTION DEVICE AND THEFT PREVENTION METHOD

摘要

A theft prevention device includes an FI-ECU that controls starting of an engine, a BCM that performs first code authentication between the BCM and the FI-ECU, a voltage detection unit that detects a voltage supplied from a power supply to the FI-ECU or the BCM, and a control unit that performs second code authentication with the BCM and controls a device VSA that is different from the FI-ECU. The BCM performs authentication with the control unit only when the voltage detected by the voltage detection unit indicates a predetermined value or less.

主权项

1. A theft prevention device comprising:
an engine control unit configured to control starting of an engine; an authentication control unit configured to perform first code authentication between the authentication control unit and the engine control unit; an voltage detection unit configured to detect a voltage supplied from a power supply to the engine control unit or the authentication control unit; and a first control unit configured to perform second code authentication with the authentication control unit and control a device different from the engine control unit, wherein the authentication control unit performs authentication with the first control unit only when the voltage detected by the voltage detection unit indicates a predetermined value or less.