Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Newmar Owner's Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 03-02-2017, 02:58 PM   #1
Senior Member
 
Deerhunter's Avatar
 
Newmar Owners Club
Appalachian Campers
Join Date: Jan 2008
Location: Vero Beach, Florida
Posts: 139
No Brake Lights to Towed vehicle

Ref: 2003 DSDP Freightliner Chassis/ Cat engine.

My question is:
Where are the fuse locations for the left & right turn/brake lights?

My problem is:
Signal lights work, running lights work, but the brake lights to the towed vehicle does not!

Tow vehicle and all connecting wiring and adapters have been checked positive by plugging into another Dutch Star. The brake lights do not work when plugged into my coach.

Newmar Cust. Serv. Has referred me to the owners manual and to Freightliner.

Any suggestions?
__________________

__________________
Denver (Deerhunter)
"Friends are the family we choose for ourselves!"
OUR BLOG
Deerhunter is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 03-02-2017, 03:14 PM   #2
Senior Member
 
photopilot's Avatar
 
Monaco Owners Club
Join Date: Jan 2016
Location: New Hampshire
Posts: 240
Just a wild guess, but I'd start by looking for fuses.

Walt
__________________

__________________
Walt & Bonnie
2006 Monaco Camelot 40PAQ, Cummins 400 ISL
'16 Ford C-Max, Roadmaster BP, Falcon 2
photopilot is offline   Reply With Quote
Old 03-02-2017, 03:30 PM   #3
Senior Member
 
UncleJamie's Avatar
 
Entegra Owners Club
Join Date: Feb 2016
Location: Katy Tx.
Posts: 143
Quote:
Originally Posted by Deerhunter View Post
Ref: 2003 DSDP Freightliner Chassis/ Cat engine.

My question is:
Where are the fuse locations for the left & right turn/brake lights?

My problem is:
Signal lights work, running lights work, but the brake lights to the towed vehicle does not!

Tow vehicle and all connecting wiring and adapters have been checked positive by plugging into another Dutch Star. The brake lights do not work when plugged into my coach.

Newmar Cust. Serv. Has referred me to the owners manual and to Freightliner.

Any suggestions?

My previous coach was on an 05 freightliner chassis, and I dealt with this exact issue two times. First time it ended up being a blown fuse. On my particular coach the fuses that controlled the toad lights was located in a fuse box in the second to last compartment on the drivers side. The second time that I got no lights on the toad it ended up being a bad cable. The 6 pin cable going from back of coach that plugged into front of toad had gone bad somehow? After trying everything I could think of I tried a new cable and the lights worked??

Hope this helps!
__________________
There's no time like the present. Every day is a gift, and an opportunity for adventure!
Jamie & Darci
2016 Entegra Anthem 44b 2014 Jeep Grand Cherokee Eco diesel
UncleJamie is offline   Reply With Quote
Old 03-02-2017, 03:34 PM   #4
"Formerly Diplomat Don"
 
Dutch Star Don's Avatar
 
Newmar Owners Club
Join Date: Apr 2005
Location: Moorpark, Ca.
Posts: 9,278
"Deerhunter".....You're coach is older, but on mine, there is a fuse panel in the engine battery bay. It has the fuses for the trailer harness.

Do the brake lights on the coach work when you step on the brakes?

Typically, if your turn signals work, so will the brake lights, they're using the same bulb, unless your coach has a separate bulb just for turn signals.

Lastly, since I'm not familiar with your coach I'll just suggest this. If your coach has separate bulbs for turn signals, you may have a small brain at the back of the coach near the trailer wiring harness that acts as a converter. It takes the signal for the turn signals and brake lights (if they're separate) and mates them into one for the trailer connection. This could have failed. If you're familiar with trailer wiring, you often have to buy one of these brains to do just the opposite when the car has separate bulbs.

Lastly, before you do anything, even though your car worked when connected to another coach, connect your car and then take a jumper cable and connect to a good ground on the coach and one on the car. If this solves your issue, the ground in your coach connector could be loose or corroded.
__________________
Don & Mary
2014 Newmar Dutch Star - All Electric - 450 ISL
2016 GMC Canyon 4WD Crew Cab
Dutch Star Don is offline   Reply With Quote
Old 03-02-2017, 04:05 PM   #5
Senior Member
 
Deerhunter's Avatar
 
Newmar Owners Club
Appalachian Campers
Join Date: Jan 2008
Location: Vero Beach, Florida
Posts: 139
Good points that you have mentioned.
Everything on the coach works. Ive checked all electrical areas for fuses and all im finding is a brake relay and running light fuse in the Freightliner fuse panel.
I have separate brake and signal lights and im using an adapter for 7 pin to 4 pin connector.
I replaced the 7 pin connector on the coach and everything reads okay on the multimeter.
Today i built a double light tester and have wired it to a 4 pin connector. I will be trying it out when helper gets home from work.
Nice idea on the brain. I will look for that also.
__________________
Denver (Deerhunter)
"Friends are the family we choose for ourselves!"
OUR BLOG
Deerhunter is offline   Reply With Quote
Old 03-02-2017, 05:06 PM   #6
Senior Member
 
siggyd's Avatar
 
Freightliner Owners Club
Join Date: Aug 2005
Location: Chicagoland
Posts: 664
On my 05 Freightliner, Kountry Star, there is a black fuse box about 4" x 4" on the passenger side in the basement in front of the rear tires. It had the fuses for the brake & turn signals in it.
Siggy
__________________
Siggy & Ursula.
2011 Newmar DSDP 4020 (no Tag, no DEF, 07 emission),
FTL XCR ,ISL 400,2015 Jeep Cherokee Limited, 4x4, V6, Active Drive II, BrakeBuddy
siggyd is online now   Reply With Quote
Old 03-02-2017, 09:26 PM   #7
Senior Member
 
Deerhunter's Avatar
 
Newmar Owners Club
Appalachian Campers
Join Date: Jan 2008
Location: Vero Beach, Florida
Posts: 139
Thanks Siggy. Ive checked my area on pass side aft of rear wheel and the drivers side aft of rear wheel with nothing there relative to turn or brske lights.
__________________
Denver (Deerhunter)
"Friends are the family we choose for ourselves!"
OUR BLOG
Deerhunter is offline   Reply With Quote
Old 03-02-2017, 09:29 PM   #8
Senior Member
 
Deerhunter's Avatar
 
Newmar Owners Club
Appalachian Campers
Join Date: Jan 2008
Location: Vero Beach, Florida
Posts: 139
Quote:
Originally Posted by Dutch Star Don View Post
"Deerhunter".....You're coach is older, but on mine, there is a fuse panel in the engine battery bay. It has the fuses for the trailer harness.

Do the brake lights on the coach work when you step on the brakes?

Typically, if your turn signals work, so will the brake lights, they're using the same bulb, unless your coach has a separate bulb just for turn signals.

Lastly, since I'm not familiar with your coach I'll just suggest this. If your coach has separate bulbs for turn signals, you may have a small brain at the back of the coach near the trailer wiring harness that acts as a converter. It takes the signal for the turn signals and brake lights (if they're separate) and mates them into one for the trailer connection. This could have failed. If you're familiar with trailer wiring, you often have to buy one of these brains to do just the opposite when the car has separate bulbs.

Lastly, before you do anything, even though your car worked when connected to another coach, connect your car and then take a jumper cable and connect to a good ground on the coach and one on the car. If this solves your issue, the ground in your coach connector could be loose or corroded.
Hi Don
Somehow i missed the first paragraph of your response relative to a fuse panel inside the battery bay.
Thats one area i havent check and would be a convenient place to.put it.
Thank you. Checking it tomorrow.
__________________
Denver (Deerhunter)
"Friends are the family we choose for ourselves!"
OUR BLOG
Deerhunter is offline   Reply With Quote
Old 03-03-2017, 06:51 AM   #9
Senior Member
 
Join Date: Jan 2016
Posts: 120
Just happened to us. Some of the pins on the coach connection were corroded preventing contact. We used a emory stick to clean up.
We also pushed in the metal contacts on the plug to improve contact.
Good luck
__________________
Frank & Lyn
2008 Newmar Dutch Star 4320
ftiernay is offline   Reply With Quote
Old 03-04-2017, 01:25 AM   #10
Senior Member
 
JFXG's Avatar
 
Newmar Owners Club
Freightliner Owners Club
Join Date: May 2012
Location: Today? Mercer, PA
Posts: 3,614
No Brake Lights to Towed vehicle

Deerhunter....
In some coach/toad combinations you have to wire diodes into the light circuitry of your toad to prevent your toad brake light power (energized by your auxiliary brakes) from back feeding into your coach light circuits. Check out this site.
https://www.etrailer.com/Tow-Bar-Wir...ins/38955.html.
Google other sites with similar search terms to learn more.
__________________
John & Diane, Fulltimers. RVM103 NHSO
On the road since June '12 with Lincoln, the guard cat.
2002 Dutch Star 40, Freightliner, Cat 3126, 2004 Element
JFXG is offline   Reply With Quote
Old 03-04-2017, 09:14 AM   #11
Senior Member
 
Deerhunter's Avatar
 
Newmar Owners Club
Appalachian Campers
Join Date: Jan 2008
Location: Vero Beach, Florida
Posts: 139
Etrailer.com is a great place to do business with. Ive bought from them for years. Plenty of helpful advice on their website too.
And I did install diodes just for the reason you mention.
Freightliner will be sending me some photos Monday that may reveal the location of the fuse/relay box since they requested the Vin #.
__________________
Denver (Deerhunter)
"Friends are the family we choose for ourselves!"
OUR BLOG
Deerhunter is offline   Reply With Quote
Old 03-04-2017, 08:22 PM   #12
Member
 
Roadtrip Images's Avatar
 
Newmar Owners Club
Spartan Chassis
Join Date: Jun 2014
Location: On the Road
Posts: 39
I've been chasing this on my 2008 Dutch Star for awhile. First things first, do you have turn signals and brake signal at the coach trailer connector? These share the same pins on the 7 pin connector. LH stop/turn and RH stop/turn. If you have turn signals at the connector but no brake signal then you have to find where they get combined and check there. This is not a fuse or relay problem as the turn signal and the brake signal share the same fuses and relay going to the trailer connector. If the turn signal is getting through then the fuses and relays are good. On my 2008, the coach brake and turn lights use a different set of fuses & relays from the trailer connector. You need the wiring diagrams from Freightliner to figure this out.

On earlier DS Spartan chassis' the brake signal gets combined with the turn signals at the turn signal switch on the column. By 2008 (maybe sooner) they added a controller that combined turn signals, hazards, brake, & marker lights and sent out the combined signals. That's where my problem seems to be. It's buried in the dash behind the instrument console. Very difficult to get at. Freightliner should be able to tell you if your VIN has a similar controller.
__________________
2008 Newmar Dutch Star 4317. Spartan chassis
2015 Jeep Wrangler Unlimited Rubicon
www.roadtripimages.com
Roadtrip Images is offline   Reply With Quote
Old 03-04-2017, 08:32 PM   #13
Senior Member
 
Deerhunter's Avatar
 
Newmar Owners Club
Appalachian Campers
Join Date: Jan 2008
Location: Vero Beach, Florida
Posts: 139
On my coach the 7 pin connector wiring tees off the wiring going to the LH & RH tail/signal/brake lights.
Freightliner has requested my vin # to further assist me. Hopefully I will get photos or schematics Monday.
__________________
Denver (Deerhunter)
"Friends are the family we choose for ourselves!"
OUR BLOG
Deerhunter is offline   Reply With Quote
Old 03-05-2017, 08:33 AM   #14
Member
 
Join Date: Jan 2017
Posts: 67
I think this may be the fix

Had this on our 06 MADP. There are some inline type fuses on top of the chassis batteries that fed to the trailer wiring harness - one was blown, replaced it and it was fixed. The diagrams don't always capture all the places various companies add fuses. Check there.
__________________

__________________
Breezy2006 is offline   Reply With Quote
Reply

Tags
brake, brake lights, light, lights, tow



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
Magnetic lights for towed vehicle joelyn5 Toads and Motorhome Related Towing 28 08-06-2014 11:57 PM
Towed Vehicle Lights megahurst Class C Motorhome Discussions 3 05-09-2014 01:27 AM
Lights on dolly towed vehicle Grandpavan Toads and Motorhome Related Towing 3 03-22-2012 07:22 PM
Towed Vehicle Brake Pelledan Winnebago Industries Owner's Forum 28 02-07-2011 12:09 PM
Towed vehicle brake light problem Janet&Sid Alpine Coach Owner's Forum 16 10-31-2010 05:05 PM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 10:24 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.