POWER SUPPLY CONTROL SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a power supply control system capable of detecting current abnormality of a control device having no telecommunication function and further determining in which control device current abnormality occurs when electric power is supplied from plural power supply systems.SOLUTION: In or near a first switch (SW0), a current detection means (SN2) is provided for detecting a consumption current of control devices (ECU1-ECU4) that flows in the first switch. A drive control means (CPU 100) controls on-off states of the first switch and second switches (SW1-3) to measure a consumption current of each control device belonging to each power supply system, and determines on the basis of the measured result in which control device abnormality of a dark current occurs.SELECTED DRAWING: Figure 1