Interesting Turn Signal Problem

356 Porsche-related discussions and questions.
Post Reply
Message
Author
User avatar
Paul Giganti
356 Fan
Posts: 48
Joined: Mon May 12, 2008 3:12 pm
Location: Berkeley/Albany California
Contact:

Interesting Turn Signal Problem

#1 Post by Paul Giganti » Sun Apr 29, 2018 8:35 pm

I recently switched all my turn signals on my 356B to 6V LED bulbs. To get them to flash properly I added an all-electronic blinker module. The signals, original lever switch, and blinker module work great; the turn signals blink nice and bright when asked to! One problem: The little left/right indicator light on the dash blinks continuously, both when I signal left or right, AND when I don't. Lights work fine but the continuously blinking double-arrow is kind of distracting and of course doesn't tell me anymore when I've forgotten and left my turn signals on. Anybody know why or have any suggestions on how to get it to blink only when it should?

User avatar
David Jones
356 Fan
Posts: 3361
Joined: Tue Mar 25, 2008 6:32 pm
Tag: I wish I knew as much as I think I know.
Location: Harrodsburg, Kentucky

Re: Interesting Turn Signal Problem

#2 Post by David Jones » Sun Apr 29, 2018 11:11 pm

Paul, I have to think that there is an error in the way it is wired. Do you have a copy of the wiring instructions/diagram. Somehow the flasher unit must be seeing a power supply with the switch in neutral.
If I had known I would live this long I would have pushed the envelope a little harder.
Cymru am byth
David Jones #9715

User avatar
Jim Clement
356 Fan
Posts: 386
Joined: Tue Oct 26, 2010 10:46 am
Tag: 1957 356 A Coupe
Location: Calgary Alberta

Re: Interesting Turn Signal Problem

#3 Post by Jim Clement » Sun Apr 29, 2018 11:27 pm

this may help you.
I had a similar issue, i found it to be broken internals to the switch..
Attachments
A Sw termination.jpg
 

User avatar
Jeffrey Leeds
356 Fan
Posts: 1018
Joined: Sun Apr 20, 2008 4:57 pm
Location: Northeastern MA

Re: Interesting Turn Signal Problem

#4 Post by Jeffrey Leeds » Mon Apr 30, 2018 7:27 am

Paul, I have found that not all electronic "blinker" modules are equal. I had a similar problem and was advised to replace with a blinker that has an external ground wire. That solved my problem. Check with Zim's as one source.
Registry Member Since 1978

1963 356B T-6 Super 90 Coupe
2009 997.2 Carrera S
2015 958 Cayenne diesel-1 & 2015 958 Cayenne diesel-2

User avatar
PaulLima
356 Fan
Posts: 192
Joined: Fri Jan 10, 2014 2:02 pm
Location: Carson City, NV

Re: Interesting Turn Signal Problem

#5 Post by PaulLima » Mon Apr 30, 2018 9:16 am

I had exactly this same problem, and, as Jeffrey says above, an electronic blinker with a ground fixed the problem.

Post Reply