The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Wiring a '63 2-speed wiper switch

ray_mcavoy · 03-31-2012, 10:29 PM

Hi Alan,

No, you don't need the washer pump hooked up to make the motor work.

The black w/yellow wire is a +12V feed that's live whenever the ignition switch is on.

For low speed, the switch grounds both the black and black w/blue wires.

For high speed, the switch only grounds the black w/blue wire.

Check to make sure your switch is making good electrical contact where it mounts to the dash. If the dash has been repainted it might be keeping the switch from making good contact.

03-31-2012, 10:29 PM	#9
ray_mcavoy Registered User Join Date: Nov 2009 Location: Sherman, ME Posts: 2,373	Re: Wiring a '63 2-speed wiper switch Hi Alan, No, you don't need the washer pump hooked up to make the motor work. The black w/yellow wire is a +12V feed that's live whenever the ignition switch is on. For low speed, the switch grounds both the black and black w/blue wires. For high speed, the switch only grounds the black w/blue wire. Check to make sure your switch is making good electrical contact where it mounts to the dash. If the dash has been repainted it might be keeping the switch from making good contact.