73 gmc wipermotor and switch w/pump

[frankyjoet]

hi guys and girls. i need help with wiring the 2 speed switch to the wiper motor. my wiper switch harness has 3 wires , a grnd , 1 dark blue and 1 light blue. i tried searches, but no help. the wiper motor has 3 spades for the wiper sw hookup plus 2 spades for the washer pump. i changed the fuse panel from glass fuses to spades. i attached a blue wire marked wiper motor power to the middle spade from fuse panel on the 3 spade location. i have power to that spade after checking with the tester light. where do the other 2 go? the wiper sw is a 1994151 standard 2 sp sw. thanks in advance for any help.

[73kay]

Bump. For
My 76 dark blue was washer and the black/white and light blue were the hi or low I believe.

[frankyjoet]

hi andrew. problem solved. thank you. For your info i attached the dark blue wire to the washer pump harness. i found out the 3rd wire black was hot not ground on the sw. it was the hi spd wire. th lite blue is the low spd. the wiper motor has the ground. thanks again. frank

[73kay]

Cool I'm still messing with mine bc I have an 86 steering column and want the wiper controls to work on it so I've been searching for wire diagrams and stuff. The later motors are a bit different but glad I could help.

[hatzie]

Originally Posted by 73kay

Cool I'm still messing with mine bc I have an 86 steering column and want the wiper controls to work on it so I've been searching for wire diagrams and stuff. The later motors are a bit different but glad I could help.

The factory wiring diagrams are in my signature. The connectors GM used are either Delphi Packard 56 or Delphi Pak-Con. The connector part #s in the wiring diagrams will tell you which it is.

[73kay]

Thanks hatzie
I definitely have been looking at your links in the past and will have to work on it this weekend instead of paint(rain) thanks for follow up.