Should Prodigy P2 Brake Controller Show Two Dots on the Display When Not Connected to Trailer

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Question:

I installed the tekonsha p-2 on my 2016 jeep grand cherokee and it was easy. The problem I have is that the dots on the screen stay lit even when the car is off and no trailer is attached. Is this normal

asked by: Jay C

0

Expert Reply:

What you described is perfectly normal. When not connected to a trailer the Prodigy P2 part # 90885 will show two dots like you described. After a period of inactivity the controller will go into sleep mode. It doesn't turn off with the vehicle because in an emergency situation if your tow vehicle were to somehow shut off you'd still want the controller to work.

expert reply by: Jameson C

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Trevor

1/10/2021

What if the 2 dots don’t go off. Is there a problem

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Jon G.

1/14/2021

How long are you talking for? The Tekonsha controllers tend to have about a 15 minute timer when it comes to inactivity before they go to sleep completely. What you'd need to do is get out of the vehicle and then 15 minutes later go and peer through the window without touching the vehicle to see if those dots are still on. If you were to open up the door then the controller would likely sense movement and come out of sleep mode.

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Matt B.

4/16/2024

@johng if decimal lights remain on and don't shut off is this ok or will it drain batterywith no key in ignition switch matt barber what could be wrong if anything

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Jon G.

4/16/2024

@MattB Are they on longer than 15 minutes?

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See All (7) Replies to Trevor ∨

Answer 1

I attached a picture that has a chart with all of the error codes for the Prodigy P2 part #90885 that you referenced. I am not sure what you mean by dashes on the display so hopefully the chart helps you. Feel free to email back with pictures of the…

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Answer 2

Those definitely look like Prodigy P2 #90885 troubleshooting codes! You can verify this if the numbers you are seeing are blue. If they are red then this means you have the discontinued Prodigy P1 90185. Regardless of which one you have, the…

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Answer 3

It sounds like you may need to check the connection on the red wire. Use a circuit tester like #PTW2993 if needed to test the wiring. Make sure the red wire is attached to the wire that only shows a signal when the brake pedal is pressed. Also make…

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Answer 4

There are a few things that can cause the brakes to lock up on a trailer. First, disconnect the trailer from the vehicle. Then use a circuit tester like #PTW2979 if needed to test the connector on the vehicle. Have someone sit in the truck and run…

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Answer 5

The Curt Discovery Trailer Brake Controller, #C84VV, should show only the decimal point dot when the controller is activated and a trailer is not connected. If it shows the dot all the time, the red wire is connected to the wrong side of the stop…

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Answer 6

The light that indicates that the 12 volt circuit is hot is normal and it will not drain the battery. Think of it as the battery having a really long positive terminal that just extends to the rear of the vehicle. If nothing is drawing power from it,…

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Answer 7

The issue could be a wiring issue or a faulty brake controller. The red light should only come on when you step on the brake pedal or when you push the manual override lever, with or without a trailer connected. The first step I would take is to make…

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Answer 8

Electric brakes have 2 wires located at the back. One is for power and the other is for ground (it doesn't matter which is used for which function). The ground wires should be connected to the trailer frame. The only other place that would carry…

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Answer 9

The wheel caster you need is the part #JC-102 to be used with the Ultimate Trailer Jack #322-RDJ-2K.

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Answer 10

Test the 12 volt power wire that feeds the charging circuit for the breakaway kit part #50-85-315 that you have installed on your trailer with a circuit tester like part #PTW2993. You should be getting 12 volts running into the battery box that will…

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Answer 11

The most likely cause for the incorrect behavior of your trailer lights, where activating one turn signal causes all trailer lights to blink, is an insufficient ground (or a short to ground) on either the vehicle or the trailer. Since you re-wired…

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Answer 12

The N.C. error code on the Tekonsha Prodigy Brake Controller could be indicative of several problems or a combination of problems. Since it shows the code with the trailer connected, it could be a short or open circuit on the brake output wire. There…

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Should Prodigy P2 Brake Controller Show Two Dots on the Display When Not Connected to Trailer

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