Troubleshooting Tekonsha Prodigy P2 Brake Controller Not Recognizing Trailer Connection

Question

Question:

I purchased an E brake controller from you in 2010 or 2011. I never used it till recently. My problem is that it does not recognize a trailer being connected. Need to know how to troubleshoot this problem. The controller is a prodigy P2 3035

asked by: John B

0

Expert Reply:

If your Tekonsha Prodigy P2 Trailer Brake Controller # 90885 is not recognizing your trailer when it is connected, I recommend starting by inspecting both your vehicle side and trailer side connectors. Check to make sure there is no debris or corrosion in and around the pins, simply cleaning out as needed.

Next, I recommend going to the trailer connector at the rear of your vehicle and testing the pin at the 5 O'clock position with a circuit tester like # PTW2993. You can have a buddy sit in the vehicle and engage the manual lever on the P2 Controller while you test the pin. Make sure the controller is set to max power. If you do not receive any power at the pin with the override lever engaged, then there might be a missing or blown fuse in your vehicle. You can check your copy of the owner's manual for the corresponding fuse locations.

If you you do receive the correct voltage at the pin, then the issue is most likely on the trailer side and you can turn your focus to it. Check the wiring on the trailer for any bad connections or damaged sections, fixing as needed. Check to make sure all your ground connections are made to clean, bare metal surfaces.

If you are unable to resolve the issue, please let me know and I will be happy to look into this further. I have also attached a troubleshooting article that you might find helpful.

expert reply by: Chris R

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…

view full answer...

Answer 2

On some vehicles, the key has to be on for voltage to go back to the trailer connector. On others, it does not. An electric brake controller will always send back some minimal voltage to the trailer connector. This is how it senses if there is a…

view full answer...

Answer 3

It sounds like you are having a wiring issue that is either at the brake controller, at the trailer connector that is at the rear of your vehicle, or the trailer connector on your trailer. If you used a vehicle specific wiring harness from the brake…

view full answer...

Answer 4

I have attached a basic brake controller wiring diagram for you. You will want to make sure that you ground the white wire to the negative post on the battery. The black wire will attach to the positive battery post. The red wire will tap into the…

view full answer...

Answer 5

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…

view full answer...

Answer 6

When wiring a trailer connector, it is best to wire by function, as wire colors can vary. We have an excellent wiring diagram on our website, I will provide you a link so you can look at it. If you are looking at the inside of the trailer connector…

view full answer...

Answer 7

The Prodigy P3 trailer brake controller uses a 4-wire hookup. The white wire is to be grounded to the battery negative terminal; the black power wire connects to the battery hot terminal through a circuit breaker; the red wire takes in the brake…

view full answer...

Answer 8

On the Prodigy P2 part #90885 the white wire is ground, the red wire is for the stoplight circuit, the black wire is the 12 volt power wire, and the blue is for brake output.

view full answer...

Answer 9

The wires to install the Prodigy P3 #90195 are indeed already run and under your dash. I have added a link to an installation video showing exactly how to install this brake controller in a 2011 GMC Sierra like yours. On the Prodigy the blue wire is…

view full answer...

Answer 10

For a 7-way round to 7-way flat adapter you would want the part #HM47425. For a 7-way extension that would give you 7 feet of extension you would want the part #C56080. If by chance your tractor has separate taillight wiring, meaning that the turn…

view full answer...

Answer 11

The first thing that you need is the Trailer Connector Adapter #HM47425 which converts the 7-Way round connector on your 1999 International 9100 to a 7-Way blade style connector. This will plug into your 9100 and provide a pace to connect the…

view full answer...

Answer 12

Even on your 2012 Chevy Silverado 1500 that isn't equipped with the tow package the needed wiring is already run and present under the dash. Installing the Tekonsha Prodigy P2 Brake Controller #90885 that you referenced is just a matter of…

view full answer...

Troubleshooting Tekonsha Prodigy P2 Brake Controller Not Recognizing Trailer Connection

Products Referenced in This Question

Product Page this Question was Asked From

Featured Help Information

Instructions

Miscellaneous Media

Continue Researching