Bangkok Dean

Hi, does the 63 wipers have 1 speed or 2 speeds?

Thanks

begee22

Two

Bangkok Dean

I have a new wiper switch and it seams to be one speed? Bought it from Corvette Central#592075.

kellsdad

Here's a description of how the wiper switch functions:
Any time the Accessories circuit is powered, the wiper motor has access to +12 volts. The wiper switch controls access to the ground needed to complete the circuit and operate the motor. The switch housing appears to be grounded by design to the instrument panel, which is grounded to the rest of the car. When the wiper switch is rotated to the Low position, it connects an internal piece with its housing to ground terminal #1 on the motor. When the switch is rotated further to the High position, it also grounds motor terminal #3. When the washer button on the switch is depressed while the switch is in Low or High, it provides a ground to complete the circuit that powers the washer pump.

Armed with this info and a multimeter, you should be able to check the operation of the switch in each position. Using a jumper wire from a known, good ground you can also see if the wiring/motor is operating properly when each wire to the switch is grounded. .... If it appears the motor runs in low and parks when turned off, I'd start by checking the switch and wire that feeds the #3 terminal.

Frankie the Fink

Nice that it's listed as an electrical "non-returnable" part too..

JohnZ

Here's a schematic showing grounding combinations:

Frankie the Fink

And the CC pic of the part number cited shows three electrical spade lugs too - to wit, it should support two speeds (and off/park of course)... The part is defective or badly designed...