Turn signal activates wipers

[Gordo2]

When I use my turn signal my wipers activate.

At first it was intermittent and kind of amusing. A week later - its now constant and annoying...

I can only shut off the wipers by turning off my turn signal and turning on and off the wipers.

What should I be looking at to fix it? This is on my '83 SC.

Thanks,

Gordo

[uwanna]

Drives you crazy doesn't it! I had the exact symptom in my '80SC. It's a long story, but I tracked it down using a multimeter. (took a couple of days work). Found a "floating ground" wire, located in the middle of the bundle of wires that bolt to the ground stud on the left front fender right by the battery. The connectors in the bundle had quite a bit of corrosion on them when I removed them. Obviously, one of the wires was not making a good ground connection. Cleaned them up with some emery paper, reinstalled and all was well with the world again. Floating grounds and ground loops can do things that defy common sense. My metering proved that the wipers were getting a voltage path back thru the windshield washer motor (yes the WASHER motor) when I used the turn signal. Go figure.
I'm sure your problem is probably somewhat different, but I'm sure it is more than likely ground related.

[Bob Kontak]

Gordo.

In the tech info center there is a factory electrical diagram for the 82SC. It's identical or very very close to your 83. The diagram is pretty layman friendly as well so you can follow the color labeled wires and fiddle around with a multimeter like uwanna suggests and you will find it. It is some form of bleed through between the circuits.

Pelican Parts - Porsche 911 Parts Listings & Diagrams

uwanna

Love your subtitle. "I don't always talk to liberal arts grads, but when I do, I tell them Big Mac and small fries!"

These days it should read "I don't always talk to college graduates.......

My father earned a degree in English in the late 1950's. (Always a great undergrad as long as you couple it with a second major and masters in electrical engineering, right?) Anyhoo, companies were looking for COBOL programmers.

He ends up being a data processing mgr for larger manufacturing companies until the late seventies when 'data processing" transitioned more into "Information Technology" and his skill set was challenged. Spent the last ten years as a consultant for IBM. Not too bad for simply getting on the right ship a the right time. My old man was organized though and could plan in a brutally disciplined manner. Me, not so much.

Enjoy the weekend, guys.

[uwanna]

Originally Posted by Bob Kontak

Gordo.
uwanna

Love your subtitle. "I don't always talk to liberal arts grads, but when I do, I tell them Big Mac and small fries!"

These days it should read "I don't always talk to college graduates.......

My father earned a degree in English in the late 1950's. (Always a great undergrad as long as you couple it with a second major and masters in electrical engineering, right?) Anyhoo, companies were looking for COBOL programmers.

He ends up being a data processing mgr for larger manufacturing companies until the late seventies when 'data processing" transitioned more into "Information Technology" and his skill set was challenged. Spent the last ten years as a consultant for IBM. Not too bad for simply getting on the right ship a the right time. My old man was organized though and could plan in a brutally disciplined manner. Me, not so much.

Enjoy the weekend, guys.

Bob,
I went to the Air Force instead of college out of high school, got a great practical education in electronics which has served me well with these damned electrical
Pcar bugs! Went to work for IBM after service and IBM paid for my subsequent
college education. Went on to retire after a 30yr career reaching an IBM HQ managment position. But the thing that has served me best was my early years
as an IBM Customer Engineer, fixed everything from a keypunch machine to huge room filling super computers. The practical experience in electromechanical machines provided a basis for a lifetime of fixing "broke" things like these German
contradictions called Porsches.
These days, I would council a young person to get some practical skill like electrician, plumber or the like. In this economy those skill sets are fairing much better than a liberal arts degree. The guy who wrote "The Millionaire Nextdoor" says
the typical millionaire is the conservative guy with the modest house, pickup truck, and owns an HVAC, plumbing, landscape company or the like. There is always time to get a higher education later if you are motivated! Just my $.02
Cheers,
Grant

[Bob Kontak]

Originally Posted by uwanna

Bob,
I went to the Air Force instead of college out of high school,

Same for my Dad. They taught him Chinese at Yale to capture radio transmissions and he hung out in a hut on an island off the Korean coast for a year.

Then he went to school. Might have been early 1960's when he started the white shirt job after doing the math. 54 grad from HS and then four years college.