this switch is for integra. It got 5 wire. Normal side mirror got only 3 wire, for adjust mirror. Other two is for open and close.. if u got 3 wire model, that is ordinary model for eg's.
am i right to say the ecu can be accessed via a harness ?
if so, is there a computer program cheap/free and simple enough to use to access the ecu realtime info? can DIY?