If you're sure its the harness, check the relays. If you're going from 02/03 to 04/05, then the harness should have 2 relays. Switch them and see if it makes a difference. You can get the proper relays off ebay for pretty cheap
This is how the harness should look:
I can't find the part number anymore but you should be able to get the turn signal plugs from Honda. They sell them in packs of 5 I believe
Bookmarks