Ive been having problems with my power mirrors. some days the mirrors work normal some days the act weird.Whenever you press the button for the mirrors to go left they go up and other messed up variations like that. I figured it was the wiring so I cut the mirror harness out of another subharness and hardwired it separately from the existing mirror wiring. the mirrors still proceeded to act weird so I tired another power mirror switch and it worked with the existing wires and the hard wired mirror wiring so I figured it must be the switch I put everything back together then walk out to my car today and the mirrors act weird again. Tried two different switches again and neither work this time but they work on my dads civic. All I can think of is the relay or something but I changed it out too

 

Sounds like there are wires crossed bud.