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Old 04-11-2016, 12:28 PM   #1
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Brake Controller won't disengage

randomly after braking, I notice the TT brakes(stock) are still engaged. I notice the brake controller(P3) is engaged. I tap the pedal and they dis engage. I am thinking it's not the controller since I have replaced it. Is it the brake switch on the TV? Brakes on the TT?
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Old 04-11-2016, 03:32 PM   #2
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Did the pin in the trailer's emergency brake switch get pulled out?
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Old 04-11-2016, 04:03 PM   #3
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Did the pin in the trailer's emergency brake switch get pulled out?
I don't think so. The emergency cord has slack and it's never been pulled. It would lock up harder I think if that was the case.
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Old 04-11-2016, 04:05 PM   #4
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Can trailer brakes hang up like a standard vehicle brake if badly worn or just damaged in the drum?

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Old 04-11-2016, 04:24 PM   #5
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I am going to guess brake switch especially if taping brake cures it. Next time it happens, see if you can see if the TV brake lights (reflection in TT) are on. If so it is the switch.
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Old 04-11-2016, 04:47 PM   #6
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Lower the gain on the controller....up and down arrows
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Old 04-15-2016, 09:54 AM   #7
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Check the brakelight switch before you do anything else.

Remember, the Prodigy line of controllers are designed to help you hold the rig at a stop. After the controller no longer senses deceleration (once stopped), but you continue to hold the brakes (which is senses by the brakelight switch), it will automatically send at least 25% of max-set braking, regardless of how hard you are pressing the brake pedal, which is enough to hold the rig still in most cases.

So, if the brake switch is intermittently going bad, and stays lit even when you release the pedal, the Prodigy thinks you still have your foot on the brake, and will remain in "Hold" mode. Once you tap the pedal, and the switch finally lets go, so does the brake controller.

Replace the brake switch, or check to see if something has come loose and needs adjusted (?).
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Old 04-15-2016, 10:49 AM   #8
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Lower the boost on the P3. My Primus IQ will stick if I have the boost set to 3.
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Old 04-15-2016, 04:06 PM   #9
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Quote:
Originally Posted by 292BHDSCoachmanMN View Post
randomly after braking, I notice the TT brakes(stock) are still engaged. I notice the brake controller(P3) is engaged. I tap the pedal and they dis engage. I am thinking it's not the controller since I have replaced it. Is it the brake switch on the TV? Brakes on the TT?

What TV do you have? It could be the brake switch or your brake pedal isn't returning all the way enough to completely disengage the switch. Some switches are adjustable on their brackets. Most of the newer switches are "multi-stage" switches. The first stage cancels cruise control when you "tap" the pedal, second & some cases third stages activate brake lights with some makes the third high mount brake light has it's own "stage".

Try lifting up on the pedal with your foot next time it happens. If the trailer brakes disengage, then you'll need to find out why the brake pedal isn't returning fully or the switch adjusted if possible.
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Old 04-15-2016, 08:54 PM   #10
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Lower the boost on the P3. My Primus IQ will stick if I have the boost set to 3.
If not the trucks brake switch, I'd check the boost setting like suggested above. Start with it on 1..
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