OPL DRC Reader is dedicated app to read OBDII DTC errors in Opel / Vauxhall / Chevrolet vehicles with CAN BUS produced after 2004: Opel / Vauxhall. Insignia. Astra J. Astra H - Engine Module Only. Vectra C / Signum - Engine Module Only. Others - not tested. Chevrolet. Orlando. Cruze - not tested. Others - not tested. Others GM brand vehicles. Not tested.