Apparatus for rear combination lamp and method for monitoring thereof

The present invention relates to a vehicle rear combination lamp unit. Rear combination lamp of a vehicle rear combination lamp device comprises a LED module having a plurality of LED channels; And corresponding to the channel dimming signal to each detecting a feedback voltage of the plurality of LED channels, reaches the reference number of times the number of occurrences of over-voltage protection signal previously set for which at least one of the feedback voltages is pre kept small than the preset reference voltage When the controller determines that the LED is the channel corresponding to the feedback voltage open; includes.