Brake Controller

[MuddFlapp]

Here's a conundrum for you. I did some repairs to my truck that required me to remove the trailer plug receptacle. Before I unplugged it everything was working fine, when I put it back together I got a "check trailer wiring" error message on my Maxbrake controller. I re-seated the plug in the back of the truck receptacle and the message went away but I still didn't have any trailer brakes. Finally here's the conundrum, when I test the brake contact at the truck receptacle with a multi-meter I get a 12 VDC reading without any input from the controller but when I apply a test light to the contact nothing happens.

I hope this makes sense, ask questions if you have any.

Thanks

 

[Dan_69GTX]

If I remember correctly you will get 12 VOLT at the BRAKE wire - that is how the maxbrake knows a trailer is connected. There isn't enough AMPS to operate a light w/o the brakes applied (pedal or slide). Does the light work if the brake pedal is depressed or the slider is moved? If so, I'd check for a ground issue.

 

[Cummins12V98]

I miss my MaxBrake!!!

 

[GCroyle]

I miss my MaxBrake!!!

Not me. its right where I installed it!

How about an actual from a meter resistance check and the value in Ohms on the trailer receptacle?

I've only had my Maxbrake hooked to magnetic brakes ONE time for a test drive. I saw something I don't see on my EOH disc brakes, it showed (IIRC) an AMPERAGE display while braking.

To show amps, circuit must be complete to the magnets.

 

[MuddFlapp]

Ok, first thanks for all the response. I hooked up my old Prodigy and that works so I have to ass-u-me that it's my Maxbrake. There is an "M17" in the upper left corner if anyone knows what that means. Also, when I move the slide to apply brake there is no indicator bar on the screen. I hate it but it looks like I'm going to have to replace the best controller I ever had.
On that note, is there anything out there that works like the MB? When last did the research the best I could find was the Tekonsha 90195 P3. Is that the case? Please give me your opinions and suggestions. I'm hauling a 13K horse trailer with magnetic brakes on both axles.

Thanks

Gene

 

[GCroyle]

Contact Dutch and Di they might be able to help with maxbrake troubleshooting.

don’t throw it away yet.

 

[Dan_69GTX]

Did you unplug it (the max brake) from power - that could reset it.

 

[MuddFlapp]

Contact Dutch and Di they might be able to help with maxbrake troubleshooting.

don’t throw it away yet.

How please?

 

[GCroyle]

https://www.turbodieselregister.com/members/dutch-di.18855/

Hope this works.

 

[MuddFlapp]

Did you unplug it (the max brake) from power - that could reset it.

Whenever anyone asks me about a problem with a computer or a phone etc., I ask them "did you restart it"? Why I don't follow my own advice is a mystery to me. I unplugged the old Prodigy and plugged my Maxbrake back in and guess what? That's right, it's working. Thank you Dan for the kick in the butt. I can't tell you guys how relieved I am. I love my MB. It's the best controller I've ever used and was not looking forward to losing it.

Thanks again for all the help, as usual TDR comes through.

 

[Dan_69GTX]

Great to hear!

 

[Cummins12V98]

My MaxBrake when I plugged my RV into the bed outlet turned on the Hydraulic Actuator so the brakes were ON. I unplugged and re plugged same. So I re connected my OE and it worked as well as it could.

Anyone have an idea what to try to get it working again?