My 2001 civic has noise in DRL relay when release parking brake and the daytime running light doesn't work. I have to turn on the headlight when drive the car. Change the DRL relay doesn't help. Can anyone help me? Possible need to replace the DRL control unit. Where is it?
Thanks

DRL... you must be in Canada?

Yes, I am in Canada

There is a couple of good threads at www.civicforums.com on this matter. You may get by re-soldering some connections on the DRL module.