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 )

> License plate and dash lights on with key on, but lheadlight switch in the off position
HalfMoon
post Jun 23 2014, 07:50 PM
Post #1


Senior Member
***

Group: Members
Posts: 828
Joined: 13-November 12
From: Shenandoah Junction, WV
Member No.: 15,144
Region Association: MidAtlantic Region



I started my car tonight and noticed despite the headlight switch being fully in the off position, my dash lights are on and my license plate light is .
Odd. Never saw that before. Headlight switch I imagine....
Thoughts?
David
Addedum-and saw what I thought was a wisp of smoke come from under my dash at the windshield....perhaps my imagination?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
 
Reply to this topicStart new topic
Replies
HalfMoon
post Jul 3 2014, 07:27 PM
Post #2


Senior Member
***

Group: Members
Posts: 828
Joined: 13-November 12
From: Shenandoah Junction, WV
Member No.: 15,144
Region Association: MidAtlantic Region



Interesting afternoon out in the garage with Little Bastard.

Tom, you were right! I soldiered all the wires back together (except the rd/wht wire to the wiper), put a fuse in, powered the circuit up, and yes indeed it held! So, spade 53a having a zero ohm reading was blowing the fuse. I then soldiered the red/wht wire for the wiper back onto the spade for fuse slot 8, attached it to fuse block 8, detached the lead at the wiper for 53a, and predictably the fuse held.
But here’s where it starts getting weird…
With 53a unhooked, now my wipers (low speed) are working but only when the stalk switch on the steering wheel is in the off position. The other three positions don’t work (with the exception of shutting off the wipers. I might add the auto park function isn’t working either).

Originally a few weeks ago when my wiper system went south I assumed it also had something to do with the dash lights and license plate lights being on when the key was in the on position with the light switch in the off position, but I now feel the issues are separate.
The lights issue may be related to some mods I did quite some time ago to address the PO having put in an aftermarket tach. See this thread http://www.914world.com/bbs2/index.php?sho...218076&st=0 most notably posts 21 and 22. Could very well be I missed something and that’s what is responsible for the dash lights and license plate lights coming on inappropriately. The far greater issue has become the wipers, so the lights issue battle for another day.

The wiper issue I think is quite separate. So, as I was saying, a few weeks ago when I starting addressing these problems witch I thought might be related, one of the things I did was replace the stalk wiper switch with a 924 switch (as I also wanted to power an electric wash pump I’ve installed) and it’s possible the current switching issue has something to do with that
(see this thread http://www.pelicanparts.com/techarticles/9...tric_washer.htm and this thread http://www.914world.com/bbs2/index.php?sho...117014&st=0 most notably post 22 and 24).
I’m not at all convinced using a 924 switch is simply plug and play as it appears as if the wires may be routed differently at the switch than 914’s according to my switching symptoms. Pretty sure the wires at the wiper are correct but I may wrong. PO might have done some stuff and I’m color blind so I’ll take a picture and enclose it below.
Compounding the issue, last year I put a used wiper motor in addressing never having had a high side function and may have very well put in an earlier motor which I understand can quirk up things. See this thread http://www.914world.com/bbs2/index.php?sho...c=72503&hl=
That said, when I did swap out last year I had a low side wiper for quite some time (with a stock switch) but lost all functionality just recently the new 924 switch obviously not remedying the problem.

To be sure spade 53a at the installed wiper is causing fault and blowing the fuses. I didn’t test any of the other terminals hotwired on either the currently installed wiper or the spare, so I don’t even know witch spades powers the high side or the low side of those motors (which would be interesting to make further tests on).
53a showing zero ohm is definitely not gonna work so the motor has to come out for sure.
Do you happen to know which spades control which function Tom? That would be valuable for testing the spare and additional testing of the current installed motor. I may ,upon removal of the current motor, take a crack at opening it and seeing if it can be repaired (surely true if my spare and the previously noted test results show the spare as bad)

About as clear as mud, huh?
Having fun now aren’t we?
D
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Posts in this topic
HalfMoon   License plate and dash lights on with key on   Jun 23 2014, 07:50 PM
dangrouche   Here is the bird board repair of the switch; I...   Jun 23 2014, 08:11 PM
HalfMoon   Here is the bird board repair of the switch; I...   Jun 23 2014, 08:41 PM
HalfMoon   Hmmm.... odd question. Is the wiper switch and the...   Jun 25 2014, 03:49 PM
Dave_Darling   The two switches do work with each other, in that ...   Jun 25 2014, 03:54 PM
HalfMoon   The two switches do work with each other, in that...   Jun 25 2014, 03:56 PM
Dave_Darling   Wiring diagrams: http://www.pelicanparts.com/914/...   Jun 25 2014, 05:55 PM
HalfMoon   Wiring diagrams: http://www.pelicanparts.com/914...   Jun 25 2014, 08:06 PM
HalfMoon   Interesting. http://www.914world.com/bbs2/index.ph...   Jun 25 2014, 08:56 PM
GeorgeRud   I may be way out there, but doesn't the light ...   Jun 25 2014, 09:31 PM
HalfMoon   I may be way out there, but doesn't the light...   Jun 25 2014, 09:54 PM
HalfMoon   Ok. So I've fouund (in my manual of all place,...   Jun 25 2014, 09:47 PM
john77   I have a 73 that also came with mixed up relays. O...   Jun 26 2014, 12:50 AM
HalfMoon   ...and then the three black ones are for fogs, ho...   Jun 26 2014, 11:27 AM
ovilla   HalfMoon, I have the exact same issue as you and a...   Jun 26 2014, 12:53 AM
Dave_Darling   Sorry, I just noticed a typo! The third of th...   Jun 26 2014, 08:45 AM
HalfMoon   Sorry, I just noticed a typo! The third of t...   Jun 26 2014, 11:24 AM
HalfMoon   Somewhat academic at this point as I've repl;a...   Jun 26 2014, 01:14 PM
HalfMoon   The mystery relay Addedum-relay number 002479-01...   Jun 26 2014, 01:22 PM
rmital   [quote name='HalfMoon' post='2054661...   Sep 19 2020, 08:30 AM
TheVintagePassion   Hello at all, I'm Carmine Borraccino From Ital...   Oct 8 2020, 01:35 AM
rmital   Hello at all, I'm Carmine Borraccino From Ita...   Oct 8 2020, 12:06 PM
Dave_Darling   Much clearer pics, thanks! D has a red, a red...   Jun 26 2014, 04:19 PM
HalfMoon   Much clearer pics, thanks! D has a red, a re...   Jun 26 2014, 06:28 PM
dadaDaveed   [quote name='Dave_Darling' post='2054726' date='J...   Jun 26 2014, 09:18 PM
HalfMoon   [quote name='Dave_Darling' post='2054726' date='...   Jun 26 2014, 09:44 PM
HalfMoon   Process of elimination. I swapped in a spare (and ...   Jun 26 2014, 07:50 PM
Jeff Bowlsby   Here are some testing diagrams for the dash switch...   Jun 26 2014, 09:26 PM
HalfMoon   Here are some testing diagrams for the dash switc...   Jun 26 2014, 09:48 PM
HalfMoon   Today I thought I would pull the headlight dimmer ...   Jun 28 2014, 12:31 PM
dadaDaveed   Today I thought I would pull the headlight dimmer...   Jun 28 2014, 12:59 PM
HalfMoon   Today I thought I would pull the headlight dimme...   Jun 28 2014, 09:11 PM
dadaDaveed   I just pulled my fuse panel to take a look. 56 ...   Jun 28 2014, 09:31 PM
dadaDaveed   Honestly, I don't know if swapping 56a and 56b...   Jun 28 2014, 09:36 PM
HalfMoon   Honestly, I don't know if swapping 56a and 56...   Jun 28 2014, 09:45 PM
HalfMoon   Made the dimmer switch tonight but no love. Fuses ...   Jun 29 2014, 09:27 PM
Dave_Darling   Look for places (especially lights) where wires co...   Jun 29 2014, 10:18 PM
Tom   You need to find out why fuse #8 is blowing, Accor...   Jun 30 2014, 06:31 AM
HalfMoon   You need to find out why fuse #8 is blowing, Acco...   Jun 30 2014, 08:08 PM
Tom   "0" ohms from the load side of the fuse ...   Jul 1 2014, 12:22 AM
HalfMoon   "0" ohms from the load side of the fuse...   Jul 1 2014, 09:25 AM
Tom   David, The "load" side of a fuse i...   Jul 1 2014, 11:37 AM
HalfMoon   David, The "load" side of a fuse ...   Jul 1 2014, 12:52 PM
HalfMoon   Working on an assumption that each component wire ...   Jul 1 2014, 01:28 PM
Tom   David, First of all, you need to separate all...   Jul 1 2014, 06:19 PM
HalfMoon   David, First of all, you need to separate al...   Jul 1 2014, 07:19 PM
HalfMoon   Did more testing today per Tom's recommendatio...   Jul 2 2014, 02:43 PM
Tom   Sounds like a bad wiper motor to me. A good one sh...   Jul 2 2014, 08:36 PM
HalfMoon   Sounds like a bad wiper motor to me. A good one s...   Jul 3 2014, 12:13 PM
HalfMoon   Interesting afternoon out in the garage with Littl...   Jul 3 2014, 07:27 PM
Tom   David, Glad to see you now know what the proble...   Jul 4 2014, 12:28 AM
HalfMoon   David, Glad to see you now know what the probl...   Jul 4 2014, 02:01 PM
Tom   Remember that 53a goes to both your wiper motor an...   Jul 4 2014, 03:00 PM
Tom   David, I was reading back thru some of your ...   Jul 5 2014, 01:32 PM
HalfMoon   David, I was reading back thru some of your...   Jul 5 2014, 01:56 PM
HalfMoon   Rats. I hooked up my spare to the cars harness (an...   Jul 5 2014, 01:58 PM
Tom   David, Well, that clears up the readings! T...   Jul 5 2014, 06:21 PM
HalfMoon   David, Well, that clears up the readings! ...   Jul 6 2014, 01:35 PM
Tom   David, Does your blower motor work? The blower ...   Jul 6 2014, 02:02 PM
HalfMoon   David, Does your blower motor work? The blower...   Jul 6 2014, 02:27 PM
Tom   David, Are those wires properly terminated to k...   Jul 6 2014, 03:19 PM
HalfMoon   David, Are those wires properly terminated to ...   Jul 6 2014, 09:11 PM
HalfMoon   Actually..... Friend Valy has suggested disconnect...   Jul 6 2014, 11:40 PM
HalfMoon   Got out in the shop for a bit today and performed ...   Jul 7 2014, 03:09 PM
HalfMoon   Hmpf. Pretty confused today. I did a side by side ...   Jul 7 2014, 07:58 PM
HalfMoon   Swapped out the new 924 switch from my 1973 for n...   Jul 7 2014, 10:38 PM
Tom   Progress! That's good. Not take voltage m...   Jul 8 2014, 04:04 AM
HalfMoon   Progress! That's good. Not take voltage ...   Jul 8 2014, 10:34 AM
HalfMoon   Found something interesting. A continuity problem ...   Jul 8 2014, 06:17 PM
HalfMoon   Well duh me. On the learning curve. Slot 5 of the...   Jul 9 2014, 06:15 PM
HalfMoon   Sigh. Well it has been a long long road but my wip...   Aug 4 2014, 10:06 PM
76-914   Sigh. Well it has been a long long road but my wi...   Aug 5 2014, 08:11 AM
HalfMoon   Oh, btw, if anyone would be interested in verifyin...   Aug 4 2014, 10:08 PM
dangrouche   after reading your thread, I thought about offerin...   Aug 4 2014, 11:18 PM
HalfMoon   after reading your thread, I thought about offeri...   Aug 4 2014, 11:28 PM
rhodyguy   what's the story with the grey exposed wire in...   Aug 5 2014, 01:28 PM
HalfMoon   what's the story with the grey exposed wire i...   Aug 5 2014, 02:46 PM


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: 7th July 2025 - 12:18 AM