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Old 10-29-2015, 02:59 PM   #11
TGR
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It could be that your new trailer's brake shoes aren't properly seated to the drums. This was a problem I had when my trailer was delivered.

Here is the seating procedure provided by Lippert (although it will work on other setups):

Prior to any adjustments, your trailer brakes should be burnished-in by applying the brakes 20-30 times with a 20 m.p.h. decrease in speed, e.g. 40 m.p.h. to 20 m.p.h. Allow ample time for brakes to cool between application. This allows the brake shoes and magnets to begin seating to the brake drum.


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Old 10-29-2015, 04:54 PM   #12
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One last thought.

Check the actual voltage output at the plug. There have been cases where the Ram Trailer Brake controller is indicating higher ( up to Max.) output but the voltage at the pin in NOT 13 volts.
Cleaning all the connections has helped some in the past.
Happy trails,
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Old 10-29-2015, 07:22 PM   #13
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Quote:
Originally Posted by billb800si View Post
One last thought.

Check the actual voltage output at the plug. There have been cases where the Ram Trailer Brake controller is indicating higher ( up to Max.) output but the voltage at the pin in NOT 13 volts.
Cleaning all the connections has helped some in the past.
Happy trails,
Cleaning has helped some. However, measuring at the plug is tricky due to the pulse width modulation.

On the ealier Rams, it will read 12v because the PWM is close to 98%.

On the 2015, the voltage will read around 7v because the PWM is only 70%.

Here is a 2013 ram on a scope. You can see the 98% cycle.


Here is a 2015. It is measuring a full 12v peak, but the cycle of ~70% is only showing 7v at the plug.
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Old 10-30-2015, 08:36 AM   #14
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Quote:
Originally Posted by drittal View Post
Cleaning has helped some. However, measuring at the plug is tricky due to the pulse width modulation.
On the ealier Rams, it will read 12v because the PWM is close to 98%.
On the 2015, the voltage will read around 7v because the PWM is only 70%.
Here is a 2013 ram on a scope. You can see the 98% cycle.
Here is a 2015. It is measuring a full 12v peak, but the cycle of ~70% is only showing 7v at the plug.
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Drittal,
It seems you've done your homework.
Thanks,
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Old 11-03-2015, 01:44 PM   #15
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On my for F350 I have a setting in my DIC for trailer braking. It came from the factory set at light braking - I moved it to medium brake which helped but after setting it to heavy braking now I an lock up my trailer wheels at a setting of 8.
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Old 11-03-2015, 03:15 PM   #16
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On my 2015 ram if I use my multimeter on the brake wire and test when on light electric, it reads 9.3 v.

On heavy electric it read 7.4v.


Do you see anything wrong that Ram says is normal???
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Old 11-11-2015, 09:04 AM   #17
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I have my gain at 6.5 Worked great in 9630 miles and many mountain roads.
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Old 11-23-2015, 09:22 PM   #18
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I tow a 5600 lb TT with a Silverado and my brakes won't lock up either. I assumed it was the controller which has a sensor to detect stopping G's and apply more braking at higher G's. I can slide the button on the controller and it applies much less braking than when I am braking along with the truck. I actually can stop quite quickly when towing and letting the controller do it's thing. I have it set at 7.5 and B1.
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Old 11-27-2015, 11:07 AM   #19
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I have an F250 gasser pulling Rockwood 8289WS 5er. Dry wt of 8400. I have the built in controller set at 5.5 and it feels like the trailer is part of the truck when stopping. Feels perfect.
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