Tekonsha Prodigy P2 Trailer Brake Controller Shows 0.0 After Sleep Mode

Question

Question:

To start, you guys have wonderful customer support! How long is it after you turn your key to on does the Tekonsha p2 should the brake controller show N.C. without the trailer connected For some odd reason, 50 of the time when I turn my 07 Tahoe on without my trailer connected, it shows n.c., the other half of the time it shows 0.0 i have adjusted the settings all the way down. From my understanding, when the p2 is connected, and there is no trailer connected, it should show n.c. At all times. Is there a time delay for it to searchinch for a trailer then revert back to n.c.? or should it automatically show n.c. as soon as the truck it turned on When there is no trailer connected? And lastly, should I be able to adjust the settings on the voltage/number output when there is no trailer connected? Usually turning off the car and back on seems to work, but dont feel this is correct. It seems to me that the brake controller is falsely reading that there is a trailer connected when it is not, but only 50 of the time. How can I go about troubleshooting this issue? I have already verified all wires are hooked up correctly and replaced the brake controller. My previous p2 showed voltage/ number rising when accelerating, hence the reason why I replaced it! Hope you guys can help, as I would love to see n.c. When the trailer is not connected, and only voltage/ numbers rising when the break is applied! I have also redone the butt connectors to eliminate the possibility of a misconnection. Thank you in advance for your guidance!!

asked by: Scott

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Expert Reply:

Once the Tekonsha Prodigy P2 Trailer Brake Controller part # 90885 receives power, it should flash "n.c" for about 15 seconds and then it should show " . .". There should be no delay in this sequence. However, I spoke to my contact at Tekonsha and they said that they have had instances where the controller would show a reading once woken up even through there is not a trailer connected. They said this is normal and should go right back to the "n.c" screen. If you are not having issues with the controller's performance then I would not worry about this.

If you feel there is any issue then the only thing it would be is a short in the blue brake output wire that runs from the brake controller back to the vehicles 7-way trailer connector. If you wanted you could trace this wire for breaks. The analogy that Tekonsha provided was to image that you were in a deep sleep and the phone rang so you went to answer the door. If the controller is suddenly awaken from sleep mode it can show a voltage output but that does not mean anything is wrong.

expert reply by: Conner L

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Answer 1

Since your 2000 Isuzu Trooper already has a 4-Way trailer connector (if it is different than a 4-Way let me know) so all you will need are 2 additional parts. First, you will need to add a 7-Way using #ETBC7. This kit also includes the wiring to wire…

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Answer 2

In regards to wiring a seven way trailer connector, the twelve volt power wire or otherwise known as the battery charge line circuit will need to be run from the trailer connector to the positive terminal of the battery. The ground wire circuit from…

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Answer 3

Since you have the Hopkins Insight Brake Controller, I confirmed with Hopkins that the red light staying on is completely normal. I also confirmed with Hopkins that the red light will not drain your 2010 Ford F-250's battery to the point where…

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Answer 4

The Prodigy P3 brake controller #90195 is designed to go into sleep mode when not in use. This will just keep your settings and will be a very minimal draw like the clock in your vehicle. The display should "sleep" after 15 minutes of…

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Answer 5

The copper side of a circuit breaker like part #9510, is the side that attaches to the positive side of the battery. The silver side gets connected to the blue wire that goes to the brake controller. To answer your second question, a 20-amp automatic…

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Answer 6

Most brake controllers will stay active for several minutes after the vehicle is turned off and then will eventually go into sleep mode. The small LED light draws such a small amount that it would it would not cause your battery to drain. I attached…

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Answer 7

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 8

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 9

If you just need a 4-pin to 7-pin trailer wiring adapter, then you can use part #C57672. This will plug into the 4-pin trailer connector on your brother's vehicle and give him the 7-pin socket for the trailer. Keep in mind, this will only give…

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Answer 10

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 11

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

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Answer 12

You do have the option to utilize the air brakes on your 2023 Freightliner Cascadia to control electric trailer brakes using the Hayes Air Actuated Trailer Brake Controller, part #HA100400C. However, we mostly recommend just using an electric brake…

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