Does any body know what this blue/white(CIRCLED ORANGE) wire is suppose to be hooked up to?

I was wiring up my wiper motor and there is a separate blue/white wire besides the one above.

The wiring are all there... but there are TWO separate blue/white wires.

(CIRCLED GREEN)

Black

Blue/Red(wiper switch and motor connected to fuse box w/20 amps)

Blue

Blue Yellow

Blue/White

And also when i turn on my wipers, the blades have a hard time moving up and down...

i have a spare wiper switch assembly and it seems that blue/white wire is for the washer.

my only problem now... why are my wipers having a hard time moving??????

also it only works in "ACC" key position and not on the "ON" key position.

another thing is, fast speed does not work, only slow speed.