Daytime Running Lights -- Don't come on

The daytime running lights on your 2000 Buick LeSabre are powered by the FOG/DRL fuse located in the under hood fuse box as is the daytime running lights (DRL) relay. The relay is controlled by the Dash Integration Module (DIM). If the fuse is OK the next step would be to check for proper command from the DIM. The DIM will ground the DRL relay in order to turn the daytime running lights on. If the proper command is not being received the inputs to the DIM will then need to be checked using a scan tool. If all else checks OK the wiring from the DIM to the under hood fuse box will need to be checked.