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 )

> Wiring hell, stumped-long.
Hammy
post Nov 22 2005, 06:40 PM
Post #1


mr. Wonderful
***

Group: Members
Posts: 1,826
Joined: 20-October 04
From: Columbia, California
Member No.: 2,978
Region Association: Northern California



I'm having a lot more trouble with my lights than I thought I would.
First off, PO had the car wired so that the fogs would only turn on with brights. I see no point in that, but that's how it was wired. They had a black wire w/ blue stripe coming out from under the dash wiring harness area plugged into the #3 fuse. I think this black wire with blue stripe was supposed to go onto the fog light switch? There were only 2 wires plugged into the fog light switch when I found it.

I tried to do the fog light rewiring that required cutting a few wires, and piggybacking a few. I failed to get that to work.

So I bought a fog light flash kit and it's well made. I have it all wired up, and the fog lights were working with the ignition just like they're supposed to and would flash when I pulled the stalk back. My headlights would open up, but the headlights would NOT turn on, but parking lights would.

I turned the turn signal lever down to see if the signals would work and I lost my dash lights, and fog lights.

I know this has nothing to do with the fog light flasher kit, I'm not flaming on that. It's got to be the PO's wiring. I'm frusterated as hell. (IMG:http://www.914world.com/bbs2/html/emoticons/wacko.gif)

First off, what's supposed to go into the #3 fuse closest to the seat?


User is offlineProfile CardPM
Go to the top of the page
+Quote Post
 
Reply to this topicStart new topic
Replies
lapuwali
post Nov 23 2005, 08:30 PM
Post #2


Not another one!
****

Group: Benefactors
Posts: 4,526
Joined: 1-March 04
From: San Mateo, CA
Member No.: 1,743



I really need to diagram this, but here goes.

The No 3 fuse powers the low beams. Power comes in through a yellow wire to No 4, and is bridged also to No 3 (no wire on that side for No 3). There are two yellow wires coming out, both yellow, which go to the low beams. The yellow wire going IN comes from the headlight switch.

The No 10 fuse (opposite the No 3 fuse) also has no wire IN, as it's bridged to 11 and 12, and No 11 has a red wire IN. The red/black wire OUT from No 10 power the fogs, though a relay (53 on the diagrams). This red/black wire POWERS the fogs, and the switch for the fogs is the grey/red wire to relay 53. This connection grounds the relay switch, and the power for the relay switch comes from (wait for it), the high beam power. This comes from the white/blue wire connected to relay 27, which is the combo relay that switches between high and low beams. If the high beams are powered, the fog light relay is powered, too. If the high beams are NOT powered, neither are the fog lights. So, this isn't the PO's doing, that's factory. Who knew? The white yellow wire out of relay 53 goes to the fog lights.

This tells me these aren't actually "fog" lights, but "driving" lights, for more light than your high beams put out. My wife calls these "asshole" lights.

The big deal about the turn signals is that they used one relay for both the turn signals and the hazard flashers. On many cars, you'd see one flasher unit that provided power to both the hazard flasher switch and the center post on the turn signals, so if either the hazard flasher or EITHER turn signal switch was turned on, power would route from +12, through the flasher, through a switch (hazard or turn), out to lights, where it grounded, and the flasher would simply turn on and off as the bimetal bit did its thing. On the 914, the flasher is AFTER the switches, appears to be in parallel with the lights. This is all confusing.

However, I'm also the one who's so confused by why there are 10 terminals on the headlight switch, and why there are so many on the hazard switch. There are three on the fog light switch, and I can only figure out what two of them do. The black/blue wire is a mystery to me. It appears to ground the dash lights and bridges to the trunk light.

Electrickery, indeed.
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: 11th June 2024 - 09:49 AM