Where is the DRL module located?

There is no DRL control module, there is a DRL fuse and the DRL relay in the fuse panel on the right end of the dash but the signal to turn that relay on or off comes through the lighting control module that controls the high and low beams. What is the issue you are having? If they are not operating you could check that fuse and then test the relay to see what it is doing.

Here is a guide that will help with this.

https://www.2carpros.com/articles/how-to-check-a-car-fuse