wiring for 1977 chevette wiper motor

There are 5 wires.
1)  Black with Yellow stipe
2)  Green
3)  Black
4)  Black
5)  Brown

Is the switch still semi functional?  Do you have a volt meter?  The following wires are needed for your motor to operate.  It needs an ignition power source.  There will be a wire for low speed, and another for high speed.  And of course a ground.  If the switch is still kind of working, you may be able to identify at least a couple of the wires. 

Yes the switch is functional.  It is acutally in a Kit Car mounted on a Chevette frame.  The cab is so tight that my knee turns on the wipers everytime I get in.

Thanks for the idea of using the existing switch to identify the wires.  The green wire and the two black wires plug into, what I believe is probably a relay and then go from there.  I will try to see where they go.  The two black wires are connected together.  The remaining wires don't appear to be used.

Do I need to leave the relay, or what ever it is, connected or should I bypass it?

Forgot to mention that the steering column and wiring harness under the dash are from the original Chevette.

The Ignition wire I mentioned earlier is to keep power on the motor until it reaches home.  When you turn the switch off, it has to have the ignition wire or it would stop in the middle of the windshield.  Let us know if you need any help.

Thanks for your guidance.

Could you tell me the purpose of the relay?   Since this is a kit car, several wires had to be lengthened and who ever did the wiring, did not use the same color wire.  Also, the fast speed was not wired in and two of the prongs on the relay were spliced together.  It is so tight under the dash, I am not sure I can the wires from the motor to the existing switch in the steering column.

I am not even sure if it has a the Chevette wiper motor or something else.  The kit car manual says to use a VW wiper motor, so I assume that is what I have.

If I understood the purpose of the relay, I may be able to rewire everything and hook up the fast speed.

Thanks!

Generally a relay is used to power a high current device, motor or heater element, etc.  You can use a low current capable switch to control the relay.  I am sure that the wiper switch in the car has small wires and can not handle the current demands of the wiper motor. 

No, it just a two speed motor. 

It was wired to only run on the slow speed.  I have found a lot of things not wired correctly on this kit car.  The relay that is on it now is a 30, 85, 86, 87.  Based on my limited knowledge of relays, I don't believe this one will work.  I am guessing I need one with the center pin, 87a for the two speed motor.  Is this correct?

I have confirmed that it is a VW wiper motor and I am guessing from the 70's based on comparisons to pictures.  I have looked at the wiring diagrams for VWs and none that I have found had a relay.  They are all wired directly to the switch.

Since I am rewiring this to move the switch to the dash rather than the steering colmun, could I just eliminate the relay and run heavier wire?  If so, what gage wire should I use?

If you all recommend sticking with the relay, please post me a wiring schematic and the type of relay to use.

Thanks for your help.

You will need a Single Pole Double Throw   On-Off-On switch.  Toggle Rocker, or slide, you decide.  Are there wires coming out of the motor, or are there terminals directly mounted to the motor.  If it has wires, you need to use wire at least the size of what is on iit now.  I can't see it pulling more than 10 amps of current.  YOu will need a switch rated at 15 amps or so.  I would run 12 Ga. wire.  Have you verified that the switch is switching positive voltage.  

Also have you figured out the high speed wire?   The wiring of the switch will be pretty straight forward.  Center leg of the switch to an ignition power source capable of providing the necessary current.  One outside leg of switch to the low wire.  Other outside leg to the high speed wire.