My 04 DHS acts funny some times. The over head front middle lights don't work with the twist control but I push the button by the light it works. Then I'll ask try the twist again and it works.... My blower won't come on sometimes. I hit under the glove box where it is it starts to work. Sometimes blowing slightly harder or softer sometimes fluctuating randomly. Sometimes when I get in the driver memory has switched......Could this be the ECU???