Troubleshooting Flashing Blue Screen on Tekonsha Prodigy P3 Brake Controller

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Question:

Dear Sirs, Just so you know I sent a request to customer service and found this QandA after. Just installed order #for a Tekonsha Prodigy P3 Trailer Brake Controller this weekend. My vehicle is a 2011 GMC Sierra. We followed the on-line video for my vehicle year and model and everything seemed to go well. We connected vehicle power and the unit lit up and seemed to be working fine until we connected our trailer. We made the connection to the trailer, set the unit up as instructed in the manual and was on our way to test and set the brakes. However, as soon as the brake pedal was pressed the unit started to flash a blue screen. Because it is a continuous flashing blue screen we took a video and I would like to attach it but dont think we can. One thing we noticed was when the brake was not pressed the screen flashed slower than when the brake is pressed down. Not sure if this makes a difference. We looked through the manual and dont see a problem like this mentioned. Any ideas? If you want me to send over the video just let me know. Thank You,

asked by: Charles P

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Expert Reply:

Thank you for all of the info that you provided.

From what you described I believe you have a wiring issue going on. If everything tested out just fine for the P3 # 90195 after you installed it on your 2011 GMC Sierra then it leads me to believe that the problem lies on your trailer wiring as opposed to the installation of the brake controller. If you jump to page 10 of the instructions for the P3 (which are linked to this page for you to check out) you can see that there are multiple times where the screen can flash and it all has to do with warnings.

If you are able to read the screen it should give you some extra info on what the problem is and then you can refer to the instructions to see what is going on and what the possible solution would be. I would imagine that you're going to need to start off with the ground connections on your trailer. This goes for your main ground as well as the grounds for your trailer brakes.

Let me know if your screen is flashing a different warning than what is in the instructions, and if you have verified that all of the wiring on your trailer is properly connected and I can help you troubleshoot further.

expert reply by: Jon G

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Answer 1

If you are getting a blank screen on your Tekonsha Prodigy P3 Brake Controller #90195 you might just need to reset the unit (as simple as that might sound). Try unplugging the controller, waiting for about 15 minutes, and then plugging it back in.…

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Answer 2

The first error code, SH, you are seeing on the Prodigy Brake Controller (instructions linked below) means the brake wire sees a short circuit during idle condition. The second code, OL, indicates an overload condition during operation. For the first…

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Answer 3

On your 2010 GMC Sierra no plug is present under the dash for installing a brake controller, but the needed wires are already run. You will connect the brake controller wiring with the vehicle wiring already present under the dash. I attached a help…

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Answer 4

Actually, the P3 now has the upgraded axis accelerometer like the P2. The Tekonsha P3 Trailer Brake Controller #90195, will work with both electric over hydraulic brakes on the trailer as well as electric brakes. It has a menu option on the display…

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Answer 5

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 6

The best brake controller option to go with is one that activates the brakes proportionally instead of time delayed. A proportional brake controller will activate the trailer brakes at the same time and with the same intensity as the tow vehicle…

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Answer 7

The Redarc Tow-Pro Liberty #RED24FR is the way to go over the Elite #RED44FR as you get the nicer functions of the Elite at a lower price. The Elite has the ability to be the more preferred proportional style of controller as well as a time-delayed…

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Answer 8

The trailer brakes work on a separate circuit than the lights. You have a couple of options to control the electric brakes on the trailer. One option is to use an air over electric brake control, #HA100400C. This unit connects to the air brakes on…

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Answer 9

To install the Tekonsha Prodigy P3 Trailer Brake Controller #90195 in your Freightliner S2RV chassis the wiring is behind the kick panel in the drivers compartment. There is not a connector on the wires, they are simply terminated with tape. You will…

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Answer 10

A factory 7-way trailer connector isn't all you need to power a trailer's electric brakes. You still need a brake controller. Some Ford F-150s are equipped with a factory integrated brake controller, which you may have. If your 2012 Ford…

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Answer 11

If you have a vehicle specific wiring harness for a brake controller then that would indicate that you have a factory tow package and subsequently would already have a 7-way at the back of your vehicle. The universal 7-way connector #ETBC7 is meant…

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Answer 12

It's very easy to install a trailer brake controller on a 2021 Honda Ridgeline. I recommend the Tekonsha Prodigy P3 Trailer Brake Controller part #90195 which comes with a harness that you could simply attach to the one that came with the…

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Troubleshooting Flashing Blue Screen on Tekonsha Prodigy P3 Brake Controller

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