COMBINATION OF AN ON-BOARD POWER SUPPLY CONTROL DEVICE AND AT LEAST ONE LIGHT CONTROL DEVICE OF A MOTOR VEHICLE

摘要

The invention relates to a combination (10) of an on-board power supply control device (12) and at least one light control device (14) equipped to operate at least one semiconductor light source (36, 38). The on-board power supply control device (12) is equipped to supply the light control device (14) with power via a supply line (18) connected to a first connecting pin (20) of the on-board power supply control device (12), and to monitor currents flowing over connecting pins of the on-board power supply device (12) and use them for diagnosis. The light control device (14) is additionally connected to a further connecting pin (28) of the on-board power supply control device (12) via an error line (26) and is equipped to check the function of the connected semiconductor light source (14) and open a current flow in the error line (26) in the event of a malfunction. The on-board power supply control device (12) is equipped to react to the opened current flow by generating an error message.