Nissan changed the connector plug 3 times. The wire color for the “IG” Ignition Circuit changed from White/black to White/blue. It is called Ignition Circuit because power goes through the circuit when Ignition is turned to “On” position. This is not the Engine Ignition Circuits for Coil and Distributor. The terminal order goes clockwise. The wiper motor had plug changes also. Nissan was smart and kept the terminal orientation the same.