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Topic: Wiring towed to M/H HELP (Read 551 times) previous topic - next topic

Wiring towed to M/H HELP

Just put ready brute elite onto the jeep, both have a 6 pin connector, everything works but the left hand brake light on the jeep, checked voltage at the tail light and the left one shows around 7.5 volts and the right shows 10.45, both of the rigs have been wired for other vehicles before so I was just hoping to get lucky on the wiring, it appears as if there are 4 wires coming in to the jeep beside the power wires, I have chased then down to some weird combiners that have 2 wires in and 1 wire out that goes to the goes into the harness for the jeep tail lights seems like the red wire coming in has the breaks, have been it all day with no success, anyone have an idea what I have got here.
1999 36 ft U270
Build 5465

Re: Wiring towed to M/H HELP

Reply #1 –
Go to this site and find instructions for hooking up to your vehicle.

Trailer Parts and Accessories
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Wiring towed to M/H HELP

Reply #2 –
Quote from: fatheeler –
Just put ready brute elite onto the jeep, both have a 6 pin connector, everything works but the left hand brake light on the jeep, checked voltage at the tail light and the left one shows around 7.5 volts and the right shows 10.45, both of the rigs have been wired for other vehicles before so I was just hoping to get lucky on the wiring, it appears as if there are 4 wires coming in to the jeep beside the power wires, I have chased then down to some weird combiners that have 2 wires in and 1 wire out that goes to the goes into the harness for the jeep tail lights seems like the red wire coming in has the breaks, have been it all day with no success, anyone have an idea what I have got here.

It sounds like you have a diode where the two wires come in and one goes out.  If that diode is bad, you won't get a brake light.  I know, as I have had that issue with my Equinox, which requires diodes for the tail light system to work.  I would try and replace the diode and that should solve your issue.  Please let us know the results!
Joe & Dottie Allen
Sold!  December 2023.      2000 U320; build # 5645
Our coach " Maxine"
Motorcade #  15922;  Escapee 150950; FMCA F330833; Boondockers Welcome;  Harvest Hosts;  Thousand Trails
'98 U320 from 2000-'06
USAF '62-'66

"Do not spoil what you have by desiring what you have not; remember that what you now have was once among the things you only hoped for." ―Epicurus

Re: Wiring towed to M/H HELP

Reply #3 –
Will do thanks, on the jeep I think that po had set up to tow on a dolly, thinking about it the brake lights should come on whenever I step on the coach brake, as the surge brake lever pulls on the cable. The whole diode thing was sure driving me crazy yesterday everything worked but the left brake and it only have 7.5 volts, I did manage to get some ground wires cleaned up. thanks again
1999 36 ft U270
Build 5465

Re: Wiring towed to M/H HELP

Reply #4 –
Shouldn't be seeing that big of a drop in voltage. I ended up trying to get a more universal brake tow plug. I ended up converting to a seven pin connector that seems to be more of a universal setup in today's vehicles. I also permanently installed a tow light converter before the plug in the coach.
https://www.etrailer.com/Tow-Bar-Wiring/Roadmaster/RM-732.html
Are your voltages going into your converter correct?

Re: Wiring towed to M/H HELP

Reply #5 –
Quote from: dsd –
Shouldn't be seeing that big of a drop in voltage. I ended up trying to get a more universal brake tow plug. I ended up converting to a seven pin connector that seems to be more of a universal setup in today's vehicles. I also permanently installed a tow light converter before the plug in the coach.
https://www.etrailer.com/Tow-Bar-Wiring/Roadmaster/RM-732.html
Are your voltages going into your converter correct?
The info in your attachment says it converts a 3 wire to a 2 wire but in reality it is converting a 4 wire into a three wire.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Wiring towed to M/H HELP

Reply #6 –
Checked voltage at the 6 pin on the M/H bottom 2 pins one has 10.4 and the other has 8.4, will try a new converter
Thanks for the help
1999 36 ft U270
Build 5465

Re: Wiring towed to M/H HELP

Reply #7 –
Amazon.com: Tekonsha 119191 ModuLite HD Plus Protector with Integrated...
This is what I will eventually mod to. Would cut plugs off and direct wire to my seven pin. Provides direct power to lights from battery being controlled by coach lights basically separating the loads. IE bright trailer lights
Scott
As an Amazon Associate Foretravel Owners' Forum earns from qualifying purchases.

Re: Wiring towed to M/H HELP

Reply #8 –
Quote from: dsd –
Shouldn't be seeing that big of a drop in voltage. I ended up trying to get a more universal brake tow plug. I ended up converting to a seven pin connector that seems to be more of a universal setup in today's vehicles. I also permanently installed a tow light converter before the plug in the coach.
https://www.etrailer.com/Tow-Bar-Wiring/Roadmaster/RM-732.html
Are your voltages going into your converter correct?

I have that same converter that I installed from Roadmaster. Works good. Also I installed a separate brake circuit on my Jeep powered by that converter.
https://www.etrailer.com/Tow-Bar-Wiring/Roadmaster/RM-155.html
'99 U320 40 WTFE
Build #5462,
1500 Watts Solar 600 amp Victron lithium
2012 Jeep Grand Cherokee Overland Hemi
Instagram bobfnbw
Retired
 

Re: Wiring towed to M/H HELP

Reply #9 –
Quote from: dsd –
Shouldn't be seeing that big of a drop in voltage. I ended up trying to get a more universal brake tow plug. I ended up converting to a seven pin connector that seems to be more of a universal setup in today's vehicles. I also permanently installed a tow light converter before the plug in the coach.
https://www.etrailer.com/Tow-Bar-Wiring/Roadmaster/RM-732.html
Are your voltages going into your converter correct?
would I bypass the converter with the tail wire and not use the ground on the out leg
1999 36 ft U270
Build 5465