No high-speed wiper...Wiper motor connections?

[JLT]

This seems to be my day for posting anomalies. A search of the forum didn't provide an answer, so here goes:

My windshield wipers work on low speed, but not on high speed. I replaced the switch with another used one I had, but the problem remained. So I figure that it's got to be either in the motor itself or in the wiring.

So I look in the Bentley. it shows five wires going into it from the switch. #31 is the ground, which is obviously OK since otherwise the motor wouldn't work at all. The others are labeled 53a, 31b, 53, and 53b. I guess that one is for high speed, one for low speed, and the other two are for the "parking" mode for the wiper blades.

Is there a guide for which wire is for which function?

[kreemoweet]

Wiper motor&switch wiring diagrams at following link (along with mods by T. Dorr):
https://www.thesamba.com/vw/forum/viewt ... 54#8956954

[JLT]

I'm assuming that this image is for the '71 bus:

[image]https://www.thesamba.com/vw/gallery/pix/679693.jpg[/image]
That was a wiring for an intermittent switch modification, but shows what the connections are, anyway.

I found this on another forum

[image]https://proxy.imagearchive.com/7c0/7c01 ... fcb378.jpg[/image]

It seems to make the wiring a little clearer.