Help with 65 2-speed wiper motor and switch

[LastDeadLast]

Greetings from the snow covered rolling hills of North Carolina!

I've been struggling with my wiper motor. Long story short, I've got a factory 2 speed wiper motor and switch with a new painless harness. I can't get the darned wiper motor to turn on.

The wiper motor has a 4 wire connection along with a black ground wire and two connections on the motor housing. I've followed the painless directions exactly and everything matches up just fine but the motor still doesn't work.

With the switch on low I have power to the red and light blue wires. With the switch on high I only have power to light blue wire. I've read in several places that the white wire is a ground which seem to be correct based on my meter readings. I've tried to hot wire by hooking a hot wire to the light blue wire to the motor but I can't get it to budge.

Does anyone know how that switch works and is there a way to test the wiper motor while in the car?

Thanks in advance!

[22GT]

The factory wiper wiring harness and switch are part of the operating circuit of the wiper motor. Switch-wiring-motor should be considered a single unit, and can then be powered by a single wire feed.

Just another reason I prefer OE replacement wiring instead of the so-called "painless". A fraction of the work you've put into this would have seen you on the road with OE wiring.

You can decode the circuits here:
http://www.hammar.dyndns.org/wiring/1965/1965g.jpg

[LastDeadLast]

22GT,

Thanks for the link. You're right, if I had to do it over again, I wouldn't have gotten the painless kit, but live and learn I guess.

At this point, I just need to verify that the motor even works, I've done a bunch of searches on a couple sites and I get conflicting information, once I find out how the thing works I can reverse engineer the wiring. I've tested two switches (one new and the other original) and both appear to be working the same way.

Does anyone have a schematic of the 65-66 two speed wiper motor?

Thanks,
-Shannon

[22GT]

Originally Posted by LastDeadLast

Does anyone have a schematic of the 65-66 two speed wiper motor?

I just gave you one. Here it is again:
http://www.hammar.dyndns.org/wiring/1965/1965g.jpg

[LastDeadLast]

Yes, I got that.. so then maybe it's just my ignorance with wiring diagrams, but I can tell how to manually test the motor using that link.

-Shannon

[22GT]

For $35, you could get a new wiper harness, then you could just plug it in and be off to the races.

This is the part of the schematic you need, and it shows the wiring you could get for $35:

[LastDeadLast]

Well at the point, I think my wiper motor might be fried. I can't get it to budge no matter what I connect to it. Before I spend any more money on the harness, I need to verify that the motor works. I've never seen the wiper motor actually work since most of the electrical components were removed from this car when I bought it.

[22GT]

Originally Posted by LastDeadLast

Well at the point, I think my wiper motor might be fried. I can't get it to budge no matter what I connect to it. Before I spend any more money on the harness, I need to verify that the motor works. I've never seen the wiper motor actually work since most of the electrical components were removed from this car when I bought it.

Do you have the old wiper harness? Switch?

[LastDeadLast]

Ok, I found how to do this in the shop manual, the B and C terminals are the two terminals on the motor. I have to to verify this on the motor, but at least it gives me a direction.

TESTING CONNECTIONS


TO PARK:

B TERMINAL TO VOLTAGE SOURCE
C TERMINAL TO Blue AND Red
Yellow TO White
Black TO GROUND


TO OPERATE AT HIGH SPEED:

Yellow TO VOLTAGE SOURCE
Blue TO White
Black TO GROUND
B AND C TERMINALS AND Red NO CONNECTION


TO OPERATE AT LOW SPEED:

Red AND Yellow TO VOLTAGE SOURCE
Blue TO White
Black TO GROUND
B AND C TERMINALS NO CONNECTION

[LastDeadLast]

Originally Posted by 22GT

Do you have the old wiper harness? Switch?

Yes I do, that's my next step.

[yelostang]

Originally Posted by 22GT

The factory wiper wiring harness and switch are part of the operating circuit of the wiper motor. Switch-wiring-motor should be considered a single unit, and can then be powered by a single wire feed.

Just another reason I prefer OE replacement wiring instead of the so-called "painless". A fraction of the work you've put into this would have seen you on the road with OE wiring.

You can decode the circuits here:
http://www.hammar.dyndns.org/wiring/1965/1965g.jpg

+2 Remember putting a 2 speed wiper, from a parts car, in a 66. Simple hookup. With original wiring.

[65fastback6]

I have also just connected the switch and motor up
with the small harness, then all you need is 12V to the
single connection and a ground, it's the easiest way to go.

[LastDeadLast]

I figured out the problem. The documentation is wrong. I had downloaded and printed out a color installation manual from Painless and the pinouts for the switch were wrong. I rewired it correctly and it works now.

Thanks for everyone's help!!

-Shannon

[22GT]

Originally Posted by LastDeadLast

I figured out the problem. The documentation is wrong. I had downloaded and printed out a color installation manual from Painless and the pinouts for the switch were wrong. I rewired it correctly and it works now.

Sounds like the "painless" is a bit lacking in simplicity and documentation. The OE type stuff just plugs in.

Good that it's working now.

[LastDeadLast]

Like I said.. live and learn.

-s