RV.Net Open Roads Forum: Tech Issues: Brake light/ turn signal

RV Blog

  |  

RV Sales

  |  

Campgrounds

  |  

RV Parks

  |  

RV Club

  |  

RV Buyers Guide

  |  

Roadside Assistance

  |  

Extended Service Plan

  |  

RV Travel Assistance

  |  

RV Credit Card

  |  

RV Loans

Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Tech Issues

Open Roads Forum  >  Tech Issues

 > Brake light/ turn signal

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 2  
Next
Sponsored By:
tensch

Long Beach, CA

Full Member

Joined: 03/08/2002

View Profile


Offline
Posted: 11/05/19 09:04am Link  |  Quote  |  Print  |  Notify Moderator

I am having an issue with the passenger side turn signal and brake light not working on a 1993 Coleman pop up. The running light is working. I'm just wondering where to start with this and maybe there is a simple fix or test? It is a 4 pin connection and I have replaced the bulb. Thanks.

Bobbo

Wherever I park

Senior Member

Joined: 09/16/2007

View Profile



Good Sam RV Club Member

Offline
Posted: 11/05/19 09:23am Link  |  Quote  |  Print  |  Notify Moderator

Broken wire somewhere. Easiest just to run a new wire. Butt connector (weatherproof) it at the light and at the 4 pin connector.

You can try to track down the break, but why bother. Running the new wire is easier.

Another possibility is the socket is bad, but I am betting on the wire.


Bobbo, Linda and the furry kid (45 pound rescue)
2017 F-150 XLT 4x4 SuperCab w/Max Tow Package 3.5l EcoBoost V6
2017 Airstream Flying Cloud 23FB


schlep1967

Harrisburg, PA

Senior Member

Joined: 12/08/2005

View Profile



Good Sam RV Club Member


Posted: 11/05/19 10:18am Link  |  Quote  |  Print  |  Notify Moderator

Start with a multi-meter or test light on the vehicle side of the 4 pin connector. If all is good there try cleaning the 4 pin connector. After that, a quick visual inspection of any wiring you can see for cuts or breaks. Then do as stated above, run new wires.


2008 Dodge Ram 2500 Diesel
2009 Open Range 385RLS
Pull-Rite Super Glide

YC 1

Yuba City Calif./ Auburndale Florida

Senior Member

Joined: 01/11/2005

View Profile



Good Sam RV Club Member

Offline
Posted: 11/05/19 10:19am Link  |  Quote  |  Print  |  Notify Moderator

Get a cheap 12 volt test light. Less than $10 and more forgiving when chasing tail light.

You need to make a good ground somewhere. Use a scrap piece of wire if necessary. Once you have the alligator clip connected to a good ground you can probe the socket first since you changed the bulb. You could easily have purchased the wrong bulb or not have it inserted properly. A simple test is to remove the same bulb from the left light and put it in the right side. Test your old bulb in the left side as well.

If you still have the issue then you should really start at the trailer plug side of the tow vehicle. Could be a blown fuse in the towing vehicle.

You need to be careful to not introduce a new problem while trying to diagnose this one. Take pictures as you go and print some out. Document what you did.


H/R Endeavor 2008
2013 Ford Edge toad
Full Timers


enblethen

Moses Lake, WA

Senior Member

Joined: 01/05/2005

View Profile






Posted: 11/05/19 11:26am Link  |  Quote  |  Print  |  Notify Moderator

What is the tow vehicle?
If it is the F150, check for blown fuse in the fuses under the hood.


Bud
USAF Retired
Pace Arrow

2003 Chev Ice Road Tracker


cavie

Port Charlotte Fl/ Hindsdale MA

Senior Member

Joined: 04/28/2019

View Profile


Offline
Posted: 11/05/19 11:58am Link  |  Quote  |  Print  |  Notify Moderator

START WITH THE BLUB.Turn and break are the same filament of an 1157 bulb. Unplug from TV and check TV plug. Disconnect trailer wiring from light. Plug in TV and check trailer wiring. Yellow and green are turn signal. Red is brake, white is ground.


2011 Keystone Sprinter 323BHS. Retired Master Electrician. Retired Building Inspector.

All Motor Homes are RV's. All RV's are not Motor Homes.

Terryallan

Foothills NC

Senior Member

Joined: 06/28/2004

View Profile


Offline
Posted: 11/05/19 03:45pm Link  |  Quote  |  Print  |  Notify Moderator

Agree check the bulb. however you said the running light is working. But that doesn't tell you the brake light is working. The brake light, and the turn signal light is the same bulb. has 2 filaments in one bulb.


Terry & Shay
Coachman Apex 288BH.
2013 F150 XLT Off Road
5.0, 3.73
Lazy Campers


opnspaces

San Diego Ca

Senior Member

Joined: 12/22/2004

View Profile


Offline
Posted: 11/05/19 06:40pm Link  |  Quote  |  Print  |  Notify Moderator

I'll bet the cheap light socket is not touching the base of the bulb. Try putting the turn signal on and then go push the bulb tighter into the socket. you can also remove the bulb and look down into the socket. It might be possible to bend the two electrical tabs up a bit so they make better contact when the bulb goes in.

I had a similar issue in on my 1986 and I could temporarily fix it by bending the tabs. In the end I had to pull the whole back panel down and replace the lights with some LED taillights.


2001 Suburban 4x4. 6.0L, 4.10 3/4 ton
2005 Jayco Jay Flight 27BH
1986 Coleman Columbia Popup.

opnspaces

San Diego Ca

Senior Member

Joined: 12/22/2004

View Profile


Offline
Posted: 11/05/19 06:51pm Link  |  Quote  |  Print  |  Notify Moderator

As far as simple tests, it kind of depends on your skill level and available resources.

Do you have a couple of alligator clip test leads? If so unplug your 4 flat plug and use one test lead to connect the ground pins to each other. Use the second test lead to see if the tow vehicle yellow (left turn) wire can blink the right turn by connecting from yellow (TV) to green (PU) If the light blinks the problem is in the TV, if the light still does not blink the problem is in the trailer.

beemerphile1

Ohio

Senior Member

Joined: 04/20/2007

View Profile





Offline
Posted: 11/05/19 08:00pm Link  |  Quote  |  Print  |  Notify Moderator

Use a meter to determine if the signal is actually reaching the socket and report back.

The most common running/brake light problems on a trailer are bad grounds.

The brake/turn bulb filament is higher amperage and requires a solid ground connection.


Build a life you don't need a vacation from.

2016 Silverado 3500HD DRW D/A 4x4
2018 Keystone Cougar 26RBS
2006 Weekend Warrior FK1900


Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 2  
Next

Open Roads Forum  >  Tech Issues

 > Brake light/ turn signal
Search:   Advanced Search

Search only in Tech Issues


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:

© 2019 CWI, Inc. © 2019 Good Sam Enterprises, LLC. All Rights Reserved. | Terms of Use | PRIVACY POLICY | YOUR PRIVACY RIGHTS