Myco withTitan Brakerite
 

New trailer to me. When the pump on a Titan Brakerite system is activated how loud is it? I can't tell if my brakes are actually working. When I pull the breakaway switch I don't hear any clicks or anything and the pump is very quiet. You have to basically put your ear on the pump to see if its running. Is this normal? With the breakaway pulled the trailer can still be moved? Any help would be appreciated.

U should hear that thing Hum'n like a swarm of bees!!! doesn't sound like it's work'n!!!

Sounds like break away battery is dead or dying.

When you hit the break you should hear that motor run with no problem

I checked the battery and its reading 12+ volts. It hums but really quiet. Any ideas where to start troubleshooting?

Trailer problem
 

Just steal WRINKLEFACE'S trailer,he solved every trailer problem known.:lolhit::lolhit:

Jack up one side, put 12 volts from a battery charger to the brake terminal on the trailer plug, attach ground to frame. Should lock up the wheels. If not, something is wrong. I would then start with checking grounds on plug, titan unit and breakaway battery.

Do you have a trailer brake controller in your truck?
Is it compatible with EoH brakes?
Also, check the manual on your truck and make sure you have all of your fuses correct and operating for trailer brake applications. Sometimes, they leave a fuse not plugged, and you have to go insert it yourself.
If you look closely at your trailer brake connector, you should be able to test the pinouts with a DVM or test-light.

http://www.ajtnt.com/blog/wp-content.../08/7-way1.jpg

I do not believe this will work. There are two power leads from the truck to the trailer. One is constant 12V+ to power the pump (and battery charger depending on model). The second is a variable 1-12V+ which is what engages the trailer brakes (turns on the pump) at a variable rate according to what the trailer brake controller is sensing/sending.

Regardless, it's easy to test.
Turn on ignition. (do not start)
Roll down window.
Hit the panic button on your trailer brake controller.
You should hear that pump humming from your driver's seat.

Also, with a fully charged break-away battery, and the truck/trailer not electrically connected...
Yank the break-away cable.
The pump should immediately kick into "overdrive".
If it doesn't, you have a dead battery or one that is not connected or charging. Start there, and work you way to the truck. If that battery is "bad" as in has a bad cell or an "open", it creates an open in the circuit.
Those batteries go bad every year or two especially on boat trailers which are not often hooked to a charging system due to sitting so much.

Truck is a 2009 Chevy 2500 with its own controller. From what I see I may need to add something to the truck to make it compatible. All lights and brake lights work. I'm not even hooked up to the truck just using the breakaway battery which registers 12v. As mentioned it hums but just barely audible. Pretty cold up here but I wouldn't think that would matter.

Thanks for the correction. Need to power both terminals to check pump. (12v & Brake).

Pull the leads off of that battery and touch the leads to a jump box or something better. It may have 12V on a DMV, but no amps to push.

You need the little black box that wires into the Brakerite controller on the trailer for the GM to work..... Call myco they have them in stock like $80

Pat

The factory brake controller of an 09 will not work with EOH. The EOH system does not have resistance for the controller to read so it will not activate. Electric brakes have resistance through the magnets so the controller will read a hook up and send out a brake signal.

You can get a new controller that will work with both EOH and Electric brake systems. If you have both kinds of trailers that would be the best way to go. If not then you just need to get the EOH to work with a controller.

Some have wired in electric trailer brake magnets on the tow vehicle so a regular Electric brake controller will see the resistance and send out a signal that the EOH can use. I don't care for that method but it works.

Same as above, I don't think your controller is compatible with electic over hydraulic. I had to abandon the built in controller and install an aftermarket. I couldn't figure it out, so I took truck to trailer shop and paid for install. 2010 Chevy 3500 HD They also had to do something with the brake fuse circuit. Has something to do with charging break away battery. If you pull break away switch, break pump makes same lound noise as if you were applying breaks. I screwed up and moved trailer around enough before I if figured out that it wasn't working that I damaged pump motor and ruined battery. Expensive and dangerous. Initially I wasn't worried because truck can easily stop empty trailer.

Andy

My mechanic just text me and said he installed the "SD Module" on my trailer so that it works on the truck... 2008 GMC Sierra 2500... didn't touch the truck, we have had to do this on 2 different Myco's over the years for the same truck.

Hope this helps!!

Pat

This trailer already has the black box on it. My 2008 GMC never works with EOH brakes either. I was told to add another controller in the truck. The factory unit only seems to work with electric brakes not EOH.

Check the battery on the trailer. If it's not engaging the brakes when you yank the rip cord, the battery is bad OR the brake system is already damaged.

Plug it into a Ford or another truck with a MaxBrake (best one on market) or a Tenkosha.

Talked to both Myco and BrakeRite and it ended up being a bad SD module on the trailer. They were both great to work with - gave me the test procedure and pointed right to the bad part. Thanks for all the help everyone.

LMFAO!!!!!!!!!!!!:bunnydance:

What's a SD module and how do you test for it? :cartman:

Its a little white box installed on the frame if the trailer that plugs into the truck and into the trailers brake pump. You unplug the leads and add 12V to various terminals to see if the pump runs and if the brakes activate. My pump ran and brakes activated with power applied just wouldn't do so going thru the white box.

Any pixs of it? I tried ot look this up and cant find it.

:party-smiley-048::party-smiley-048::party-smiley-048:

"Originally Posted by Spicy My mechanic just text me and said he installed the "SD Module" on my trailer so that it works on the truck... 2008 GMC Sierra 2500... didn't touch the truck, we have had to do this on 2 different Myco's over the years for the same truck.

Hope this helps!!"

The SD module is different than this module. The SD is part of the brake system whereas the little black box is something that you need to add for Ford and Chevy trucks. I have thar one too. I'll get a picture or teo and post them.

SD Box is the white box, second from left.