Reply
 
Thread Tools Search this Thread Display Modes
 
Old 09-26-2017, 04:50 PM   #1
New Member
 
1973 31' Sovereign
Redondo Beach , California
Join Date: Sep 2017
Posts: 4
Clearance lights always on

Hi
Im a relatively new owner of a 73 31 AS.
I began to bring it back to life and am perplexed at how the clearance lights seem to have an unknown and separate power source.
I began by wiring in a new plug to hook to truck and all was good, lights worked etc. then I added a battery as it came without one. Then all the clearance lights came on and the brake /tail lights. I then pull all fuses out of the Univolt and still have clearance lights on. Then I cut all the wires to the plug thinking it may be backfeeding into the lights.
Still have clearance lights on.
I appear to clearly see where the battery cables come to the univolt and there seems to nothing else tapped into the battery to power the lights.
I am stumped...
Attached Thumbnails
Click image for larger version

Name:	79107F53-7C6C-42F4-B71C-B746DD8C3B64.jpg
Views:	73
Size:	268.8 KB
ID:	295628  
__________________

Docfranco is offline   Reply With Quote
Old 09-26-2017, 06:13 PM   #2
Rivet Master
 
1974 31' Sovereign
1979 23' Safari
Wayland , New York
Join Date: Jan 2012
Posts: 1,632
Images: 3
Do you have a manual. Mine is 300 miles away, unfortunately. There is a separate fuse panel for the tow circuits. Usually located on the front bulkhead somewhere. That still doesn't explain what is giving positive power to those lights. Did you still have your tow vehicle connected. Sounds like you installed a new 7 pin connector, the old 74 wiring doesn't match current standards. If your TV was still plugged into the trailer the mismatch in old and new wiring could be the cause.
__________________

HiJoeSilver is offline   Reply With Quote
Old 09-26-2017, 06:42 PM   #3
Rivet Master
 
TG Twinkie's Avatar
 
1974 Argosy 26
Morrill , Nebraska
Join Date: Nov 2009
Posts: 5,826
Images: 2
Blog Entries: 5
Pull the fuse labelled "car battery" and see if the lights go out.
Then pull the fuse labelled "trailer battery"
Reinstall the "car battery" fuse. If the lights remain out.
It sounds like you do not have the 7 pin plug wired to todays standards.
__________________
Knowledge: "A gift to be shared. A treasure to receive."
TG Twinkie is offline   Reply With Quote
Old 09-26-2017, 08:35 PM   #4
New Member
 
1973 31' Sovereign
Redondo Beach , California
Join Date: Sep 2017
Posts: 4
Where are these fuses?
I’ve pulled all fuses in the univolt...
Docfranco is offline   Reply With Quote
Old 09-26-2017, 08:36 PM   #5
New Member
 
1973 31' Sovereign
Redondo Beach , California
Join Date: Sep 2017
Posts: 4
AND cut all wires at the trailer plug in
Docfranco is offline   Reply With Quote
Old 09-26-2017, 09:41 PM   #6
Rivet Master
 
TG Twinkie's Avatar
 
1974 Argosy 26
Morrill , Nebraska
Join Date: Nov 2009
Posts: 5,826
Images: 2
Blog Entries: 5
They are in the Univolt. The two large fuses in the lower left corner.
They are clearly labeled in your pic.
Don't cut the wires. Disconnect them.
If it is a molded plug go to the other end of the Umbilical cord.
Tell us what color the 7 wires are.
Typically they are as follows.
Black=+12volt=Charge line=car battery
White=Common/ground
Red=Left turn/brake light
Brown=Right turn/brake light
Green=Tail/marker lights
Blue=Electric Brakes
__________________
Knowledge: "A gift to be shared. A treasure to receive."
TG Twinkie is offline   Reply With Quote
Old 09-26-2017, 10:35 PM   #7
Rivet Master
 
1974 31' Sovereign
1979 23' Safari
Wayland , New York
Join Date: Jan 2012
Posts: 1,632
Images: 3
Quote:
Originally Posted by Docfranco View Post
AND cut all wires at the trailer plug in
So are there loose wires at the trailer plug end? Your battery is still connected from the description. One of the wires in the trailer umbilical is connected to the battery for charging from the tow vehicle. If so you probably have some voltage going from that wire to the other light wires.
HiJoeSilver is offline   Reply With Quote
Old 09-27-2017, 01:59 AM   #8
Rivet Master
 
2014 20' Flying Cloud
Long Island , New York
Join Date: Jun 2015
Posts: 11,407
Quote:
Originally Posted by Docfranco View Post
Where are these fuses?
Ive pulled all fuses in the univolt...
If you don't have an owner's manual, we can probably locate one online.

Please advise, and good luck!

Peter
OTRA15 is offline   Reply With Quote
Old 09-27-2017, 06:34 AM   #9
Rivet Master
 
overlander63's Avatar

 
1993 21' Sovereign
Colfax , North Carolina
Join Date: Jun 2003
Posts: 20,899
1973 had different wiring colors and locations from modern trailers.
In 1973, I think the blue wire was battery charge, instead of trailer brakes. There are many resources showing older standard wiring and newer standard wiring. Use the ewer standard wiring umbilical diagram to wire the plug correctly, using the old wiring diagram to know what color wires went where.
__________________
Terry
overlander63 is offline   Reply With Quote
Old 09-27-2017, 06:54 AM   #10
Rivet Master
 
TheGreatleys's Avatar
 
1974 27' Overlander
Baltimore , Maryland
Join Date: Mar 2016
Posts: 975
Hang on. You swapped the umbilical plug, then after you added the battery, your running lights stay on? Check your wiring on your umbilical plug for a short. Specifically between the fat blue wire (aux + or battery charge) and the green wire (running lights). Those wires connect super close together, and it's real easy to let them touch. You may want to add some heat shrink insulation or electrical tape to make sure they can't touch.

When I redid my umbilical plug, I had an intermittent short between the left turn signal and the trailer brakes. Same problem. Ask me how fun that was on the highway.
TheGreatleys is offline   Reply With Quote
Old 09-27-2017, 12:51 PM   #11
2 Rivet Member
 
Vintage Kin Owner
San Antonio , Texas
Join Date: May 2012
Posts: 39
Does your TV have "Daytime running lights" if your trailer is hooked up to it they will be on as well, disconnect from TV and see if they go out.
Ralph12 is offline   Reply With Quote
Old 09-27-2017, 09:37 PM   #12
Rivet Master
 
1988 32' Excella
Robbinsville , New Jersey
Join Date: May 2012
Posts: 1,079
Some people added a switch to have their running lights on for decoration (and to make it easier to find their trailer) while parked and not connected to the TV.
Wazbro is offline   Reply With Quote
Old 09-28-2017, 12:10 AM   #13
Rivet Master
 
1974 31' Sovereign
1979 23' Safari
Wayland , New York
Join Date: Jan 2012
Posts: 1,632
Images: 3
Quote:
Originally Posted by Wazbro View Post
Some people added a switch to have their running lights on for decoration (and to make it easier to find their trailer) while parked and not connected to the TV.
Possible, but people don't usually do the brake lights as well. If they did thecswitch is likely near the tow wire fuses which are usually on the front bulkhead or along the street side wall somewhere.
HiJoeSilver is offline   Reply With Quote
Old 09-28-2017, 07:26 AM   #14
Rivet Master
 
TheGreatleys's Avatar
 
1974 27' Overlander
Baltimore , Maryland
Join Date: Mar 2016
Posts: 975
Quote:
Originally Posted by HiJoeSilver View Post
Possible, but people don't usually do the brake lights as well. If they did thecswitch is likely near the tow wire fuses which are usually on the front bulkhead or along the street side wall somewhere.
The running light circuit powers the tail lights, too, i.e. the brake lights. Same wire.
TheGreatleys is offline   Reply With Quote
Old 09-28-2017, 08:09 AM   #15
Rivet Master
 
TG Twinkie's Avatar
 
1974 Argosy 26
Morrill , Nebraska
Join Date: Nov 2009
Posts: 5,826
Images: 2
Blog Entries: 5
Running lights and brake/turn lights are on 3 different circuits.
1 Running lights
2 left turn
3 right turn
__________________
Knowledge: "A gift to be shared. A treasure to receive."
TG Twinkie is offline   Reply With Quote
Old 09-28-2017, 08:58 AM   #16
Rivet Master
 
TheGreatleys's Avatar
 
1974 27' Overlander
Baltimore , Maryland
Join Date: Mar 2016
Posts: 975
Quote:
Originally Posted by TG Twinkie View Post
Running lights and brake/turn lights are on 3 different circuits.
1 Running lights
2 left turn
3 right turn
Right, but same lense, same bulb, different filaments. It seems likely that OP has a short to the running light circuit which is illuminating the tail lights, i.e. the brake lights. Less likely there would be a short to three separate circuits.
TheGreatleys is offline   Reply With Quote
Old 09-28-2017, 02:05 PM   #17
New Member
 
1973 31' Sovereign
Redondo Beach , California
Join Date: Sep 2017
Posts: 4
Quote:
Originally Posted by TheGreatleys View Post
Hang on. You swapped the umbilical plug, then after you added the battery, your running lights stay on? Check your wiring on your umbilical plug for a short. Specifically between the fat blue wire (aux + or battery charge) and the green wire (running lights). Those wires connect super close together, and it's real easy to let them touch. You may want to add some heat shrink insulation or electrical tape to make sure they can't touch.

When I redid my umbilical plug, I had an intermittent short between the left turn signal and the trailer brakes. Same problem. Ask me how fun that was on the highway.
This was where I found a problem, when I wiggled the plug that goes into the front of trailer the lights flickered ... when I removed it they went off.
I will get a new plug for front of trailer.
Thank you for the pointers.
__________________

Docfranco is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Clearance clearance LEDs mayco Classic Motorhomes 55 04-29-2016 04:41 PM
Brake lights always on mprokop87 Argosy Motorhomes 6 05-28-2014 06:22 PM
tail and clearance lights always on?? bhutch74ly Lights - Interior & Exterior 4 11-20-2012 08:46 PM
Lights Always On? The Flintstones Electrical - Systems, Generators, Batteries & Solar 9 02-12-2007 03:25 PM
Upper Identification Lights aka(Clearance Lights) pap Lights - Interior & Exterior 7 04-08-2003 06:14 PM


Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 04:03 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
×