Device for controlling turning on and off of a vehicular lamp

摘要

There is provided a device for controlling turning on and off of a vehicular lamp. The device includes a plurality of semiconductor light sources; a plurality of abnormality detecting parts, one abnormality detecting part provided for each semiconductor light source, that detect currents or voltages supplied to the plurality of semiconductor light sources so as to output detection signals used to detect abnormalities of the respective semiconductor light sources; and a control part that detects the respective detection signals at a regular detection period at a different detection timing for each of the detection signals. When, for each semiconductor light source, a time period between a detection timing of the detection signal in one detection period and a detection timing of the detection signal in a next detection period is defined as an acquisition period for the respective semiconductor light sources, the acquisition period of at least one semiconductor light source is different from the other acquisition periods for the other semiconductor light sources.