Kwhite
Member
- Joined
- Aug 6, 2015
- Posts
- 55
- Reaction score
- 3
- Location
- Albemarle NC
- Ram Year
- 2015 3500
- Engine
- 6.7 Cummins
Im guessing its gonna limit the voltage no matter what, stupid setup, i hope they do something to change it
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Damn! I'm glad pip pointed out this thread to me. Now that I think about it, there was one time I had to hit the brakes kind of hard at an intersection. I was wondering what the Hell happened cause I know the brakes would lock up at slower speeds on my fiver. I have a 38' toy hauler and I drive like a grandpa when I'm pulling it. That's probably why I haven't noticed. So the trucks brakes are taking a beating then. As I'm posting this I'm at the dealer. I just told them to check it. We all know what they are going to say but I'll post back later. Told them to document it just in case. I'm going to have to play with the controller a little more. I think mine is set to heavy and I pressed the buttons to get to 7.5. Boss, or anybody, let me know how I can help. I'm pretty sure I have the issue too. If there is a # to call or whatever. I'll follow up on this. Btw, my truck was built back in April.
What was the voltage they measured? It is designed to provide 12 volts with the brake slider moved all the way and the gain set to 10. Heavy electric or light electric doesn't matter, that has to do with the initial boost level.
The gain is a percent of 12 volts to apply to the electric brakes, for example, with the gain set to 5 or 50%, the maximum voltage output to the electric brakes would be six volts.
The best way to test yours is connect to your trailer, set the gain to 10, select heavy or light electric, connect a volt meter to your trailer brake line. With the engine running (full voltage this way) have someone slide the brake control slider all the way while measuring the voltage. You should see 12 volts if the ITBM is working "as designed" but more likely you will only see 6.86 to 7 volts, hence the issue.
My last email to Chrysler was a challenge to how they thought the ITBM worked (told me it was based on vehicle speed when it is really based on braking effort of the tow vehicle), waiting for their reply if it comes.
I hear your rant, I order a 3500 Cummins with the fifth wheel prep group, rear air leveling, and cargo camera. The perfect setup to heavy haul our fiver, I didn't think they could screw up the brake controller to the point I can't make a hard stop. How can this be?
Thats Basically how i did mine too and i think i had around 9.4 volts which is like you said around 75%, its certainly not as it should be!
I had 7.5 volts not 75%. My mistake. I corrected it
Glad I found this thread. I've been using a Tekonsha Voyager to tow my 7k# 4wheel brake TT. When it's setup correctly it works great, but the level adjustment is finicky. Sometimes I can feel the trailer pushing my TV, other times it feels like the trailer is dragging me to a stop under similar braking conditions. I was about the pull the trigger on the ITBM. Not now. Hell no. I'll stick with the devil I know, for now. lol
Ok guys. retested mine with a "better" multimeter. First one was a cheap harbor freight one. Got 7.35volts. But, dont see much of a difference. I also Set the manual slider to 50% and tested and got 3.5 volts. Bringing my truck in to dealer next week so ill follow up. Boss, i assume these cant be replaced with an older mopar unit (that works correctly) to keep the factory look. I dont know if they are diffferent design or not. Lets keep at it. I dont want to die towing!
It would be nice to just put in an ITBM from an earlier year, my previous truck was a 14 Ram 1500 and it worked perfectly, I also submitted a compliant to NHTSA, hopefully i will hear something back