How to Test a Prodigy P2 Brake Controller

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Question:

I have an Tekonsha Prodigy controller. What is the best way to test it and se if it is working? Thanks

asked by: Jorgen

0

Expert Reply:

Does the display light up when your vehicle turns on? That would indicate that the controller has power and is grounding properly. If a trailer is connected it should read .c on the display and if there isn't a trailer connected it should read n.c. If you apply the manual override lever with a circuit tester on the brake output pin of your vehicle's 7-way you should see voltage register there. That would indicate the controller is working properly.

Lastly, you could try connecting it to a trailer with brakes and see if it functions properly.

If not, check out the FAQ article I attached on troubleshooting brake controller installs.

For a more in depth way to test the controller for if it doesn't seem to be working properly sever the blue brake output wire near the brake controller leaving enough room to reconnect it and then apply the manual slide. Using a circuit tester like part # PTW2993, you should get output to the controller side of the wire you severed. If the manual slide activates the trailer brake output wire properly, try the brake pedal. If the brake pedal activates the brake output properly also then the problem is farther back either in the vehicle wiring or on the trailer.

If either the brake pedal or the manual slide are not functioning properly you will need to test the wires going into the brake controller. Make sure you have power entering the brake controller on the black wire. On the red wire you will only want power when the brake pedal is pressed.

If there is power on the red wire before the brake pedal is pressed you have connected the red wire from the brake controller to the wrong circuit. You would then need to find the brake switch wire that has power ONLY when the brake pedal is activated.

If these connections check out and the brake controller is properly grounded then there is possibly a problem inside the brake controller.

I am including a link to a video that will show you how to test the wiring on a brake controller.

expert reply by: Jameson C

0

Answer 1

It's possible the brake controller is bad, but you definitely want to check some other things before you purchase a replacement. The first thing to do is inspect both the truck's and the trailer's connectors to make sure the pins are…

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Answer 2

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Answer 3

To connect back up lights you need to have a 7-way trailer connector on both your trailer and tow vehicle. On a 7-way the reverse lights are powered by the center pin. To connect reverse lights to the trailer's 7-way you can use 16 gauge wire…

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Answer 4

The Tekonsha Prodigy P2 Trailer Brake Controller #90885 will have a single blue light that stays on even when the trailer is not connected. You will have two blue dots if the boost is on, but only one if the boost is no on. I've attached a video…

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Answer 5

Trailer brake controllers like the Prodigy P2 #90885 use a 4-wire hook up. The wire functions and connections are as follows: BLACK wire carries 12V power and connects to the vehicle + battery post through a 20- or 30-amp circuit breaker like…

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Answer 6

The Firestone Ride Rite kit that fits your 2015 Toyota Tundra is the part #F2445 which is compatible with in-bed hitches like the B and W part #BWGNRK1257 that fits your truck.

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Answer 7

I would recommend you start over with your Tekonsha Prodigy P2 Brake Controller #90885 and go through the setup process again so that it will be properly setup. First step is to connect your trailer to your tow vehicle. Next, with the engine running,…

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Answer 8

That number is probably 4 mm which that amount is acceptable. Normally trailer brake thicknesses are done by inch though. 3/16 of an inch is what they are new and then they should get replaced at 1/16 of an inch.

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Answer 9

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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

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 12

Hey Bryan, that's a good question. The pricing can definitely be misleading, but I wouldn't use it to judge the quality of the tire. A lot of that comes down to promotions, inventory, and whether you're looking at a tire by itself or…

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