Wiper Potentiometer switch - connections

[SFR]

Where do the 3 small wires plug into on the back of the wiper delay switch?

I have Black, Red and Red/Yellow wires.

Connections:
15a -
15 -
15b -

[jgurnari]

what car? Where is this located...I can look at mine nd take a pic

[Synchro Joe]

https://forums.pelicanparts.com/porsche-911-technical-forum/1100267-sc-wiper-switch-potentiometer-wiring-diagram.html

Likely depends upon your model, year, etc. but here's a start.

[SFR]

It’s a 1980 911 SC.

Thanks for the link.

[porschedude996]

Is there a diagram on one of the surfaces?

[spuggy]

Originally Posted by SFR

Where do the 3 small wires plug into on the back of the wiper delay switch?

Mine were soldered on, which seemed weird. Yours has a bunch of rosin flux all over it too... Hmm.


IIRC, it's a panel mount 100K logarithmic potentiometer with an on/off switch.

Log pots are pretty common in audio applications, so not hard to find one if you need to.. Some might even accept the factory knob/cap.

Originally Posted by SFR

I have Black, Red and Red/Yellow wires.

Connections:
15a -
15 -
15b -

RoninLB posted this current flow diagram, post #8 in this thread: Intermittent wipers on an early 911.

E38 is the intermittent pot.

[SFR]

Used info from link provided by Synchro Joe and it works as designed.

Here are the connections:
15a- Red/Yellow
15 - Red
15b - Black