| 摘要 |
<p>A diagnostic device for checking a control signal wire between a controller of a motor vehicle and a charging port for a battery of the motor vehicle located on the motor vehicle side is disclosed, wherein on the charging port side, a first resistor is provided in the controller connecting the control signal wire to chassis ground, and a second resistor connected in parallel to the first resistor is provided. An evaluation device of the controller has a current source and/or a voltage source for supplying an electric current and/or a voltage independent of a charging process, and is configured to measure an electric current indicating a defect in the control signal wire, or a voltage indicating a defect in the control signal wire, utilizing the first and the second resistor.</p> |
