Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

> '74 fog light relay, how does it work without grd?
benalishhero
post Sep 29 2009, 01:25 PM
Post #1


Member
**

Group: Members
Posts: 313
Joined: 28-November 07
From: Portland, Maine
Member No.: 8,384
Region Association: North East States



I'm at the end of some rewiring in my '74 2.0. What I can't figure out is how the fog relay is supposed to work without a ground. I have studied the diagram and as far as I can tell the relay isn't grounded.

Can anyone give me a clue?

I need another set of eyes and brain for this one.

Thx.

Thomas
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
 
Reply to this topicStart new topic
Replies
SirAndy
post Sep 29 2009, 02:46 PM
Post #2


Resident German
*************************

Group: Admin
Posts: 42,205
Joined: 21-January 03
From: Oakland, Kalifornia
Member No.: 179
Region Association: Northern California



QUOTE(benalishhero @ Sep 29 2009, 11:25 AM) *

Can anyone give me a clue?

It's grounded through the foglight switch.

On the foglight relay, 86 goes to the foglight switch (gray-brown wire) where it is ground when the switch is pulled.

87a is not used on that relay, on other relays 87a and 86 are normally bridged.
(IMG:style_emoticons/default/bye1.gif) Andy
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
benalishhero
post Sep 29 2009, 03:09 PM
Post #3


Member
**

Group: Members
Posts: 313
Joined: 28-November 07
From: Portland, Maine
Member No.: 8,384
Region Association: North East States



QUOTE(SirAndy @ Sep 29 2009, 04:46 PM) *

QUOTE(benalishhero @ Sep 29 2009, 11:25 AM) *

Can anyone give me a clue?

It's grounded through the foglight switch.

On the foglight relay, 86 goes to the foglight switch (gray-brown wire) where it is ground when the switch is pulled.

87a is not used on that relay, on other relays 87a and 86 are normally bridged.
(IMG:style_emoticons/default/bye1.gif) Andy



Thx for the reply. I tried that with no luck. I'm thinking I may have a bad switch.

Andy, is that terminal 31 on the switch that illuminates the switch light?

That's how I originally had it wired.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Posts in this topic


Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 9th May 2025 - 02:44 PM