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Toad vehicle turn signals not working

stlucia0127
Explorer
Explorer
We have a 2015 Thor Class A connected to a 2014 Honda CRV. The last time we brought it home we hooked it up and the brake lights are in sync with the motorhome but the turn signals aren't. Independently all lights work on each vehicle.

Any suggestions?

We hooked the vehicles up and all was well at the start of the trip. When we hooked up after camping for five days the brake lights worked on the vehicle when we pressed the brake lights on the MH. When we activated the turn signals on the MH the turn signals on the toad didn't work. The turn signals on the MH and toad are amber lights. This is the fourth time we have towed the vehicle, we haven't changed any thing and this is the first time we've encountered a problem.
10 REPLIES 10

Blaster_Man
Explorer
Explorer
BTPO1 wrote:
phillyg wrote:
Look also for a bad ground. Using a voltmeter can occasionally be difficult. I've found using a single wire with alligator clips at each end can be used as a test jumper to bypass components, providing a ground alternate. Just used one today to jump a bad tail light ground to my trailer, tail light lit right up telling me the ground wire needed to be cleaned and reattached more securely.


I also like to use jumpers, but I use fused jumpers to prevent any problems with wiring. It's as simple as putting an inline fuse on one end before the alligator clip. JMO


Good suggestion...check the ground.
2014 American Eagle

enblethen
Nomad
Nomad
If this is on a Ford chassis, many Fords have separate fuses for the "trailer" connector.
What happens when you turn on the four ways?

Bud
USAF Retired
Pace Arrow


2003 Chev Ice Road Tracker

BTPO1
Explorer
Explorer
phillyg wrote:
Look also for a bad ground. Using a voltmeter can occasionally be difficult. I've found using a single wire with alligator clips at each end can be used as a test jumper to bypass components, providing a ground alternate. Just used one today to jump a bad tail light ground to my trailer, tail light lit right up telling me the ground wire needed to be cleaned and reattached more securely.


I also like to use jumpers, but I use fused jumpers to prevent any problems with wiring. It's as simple as putting an inline fuse on one end before the alligator clip. JMO
Jack
2003 Rexhall Vision 27'
2019 Chevrolet Equinox
States we have been to with this MH

phillyg
Explorer II
Explorer II
Look also for a bad ground. Using a voltmeter can occasionally be difficult. I've found using a single wire with alligator clips at each end can be used as a test jumper to bypass components, providing a ground alternate. Just used one today to jump a bad tail light ground to my trailer, tail light lit right up telling me the ground wire needed to be cleaned and reattached more securely.
--2005 Ford F350 Lariat Crewcab 6.0, 4x4, 3.73 rear
--2016 Montana 3711FL, 40'
--2014 Wildcat 327CK, 38' SOLD

JFC
Explorer
Explorer
If they worked before but have stopped, check the fuse bank. After years, our toad's turn signals stopped working when on the coach, but both coach and toad worked fine alone. It turns out on my Holiday Rambler there is a separate fuse for each turn signal line going to the toad connection. Not sure why they blew, but the shop suggested I check for these fuses when I described the problem. Found the fuses, replaced and everything has been fine for the past year.

ArchHoagland
Explorer
Explorer
Who wired it up and did it ever work correctly?
2004 Monaco La Palma 36DBD
Workhorse W22 8.1 Gas Allison 1000, 7.1 mpg

2000 LEXUS RX300 FWD 22MPG 4020 LBS
US Gear Brakes

Dale_Traveling
Explorer II
Explorer II
Not sure what is meant by in sync. Left turn on the coach but right turn on the CRV? Is the CRV configured with extra lights that are only used for towing or is the vehicle configured with diodes? What has changed since the last time the lights were verified?

If the CRV is wired up to use diodes rather than retrofitting extra towing lights the configuration can be tricky and require an extra item to make it work correctly which could be the source of the problem. Since I went the diode route I also had to use one of THSES with my CRV to get everything to work correctly.
2006 Hurricane 31D built on a 2006 Ford F53

MountainAir05
Explorer II
Explorer II
Try this

http://www.etrailer.com/t1-2014_Honda_CR-V.htm

DrewE
Explorer II
Explorer II
If the turn signals on both are flashing, but are out of phase (the motorhome on and the tow vehicle off, and vice-versa), that's usually nothing to worry about, but merely a side effect of the conversion from 3 wire to 2 wire signaling and/or vice-versa.

enblethen
Nomad
Nomad
Does your MH have amber turn signals?
Are you using the amber lights on CRV or the red brake lights for the turn signals?
Amber turn signals on MH hooked to red, brake and turn signals require a combiner to go 3-2. This unit may have a separate power supply and a ground.
What type of cable being used between the rigs?
More information required!

Bud
USAF Retired
Pace Arrow


2003 Chev Ice Road Tracker