Honda Motor Co., Ltd.
Vehicle data readout device, and vehicle data readout method

Abstract:

Provided are a vehicle data readout device and a vehicle data readout method with which it is possible to reduce power consumption in a state in which a vehicle has not been activated, even if the vehicle data readout device, which receives power from an in-vehicle power source, remains connected to the vehicle. Taking as a trigger a port voltage (Vp) of a readout communication line exceeding a voltage threshold (THv), a vehicle data readout device switches a change-over switch from off to on, to generate a pull-up state by means of a pull-up resistor, and initiates a read-out of operation parameter data (Dp) by a computer.