What Causes PL and .c. Error Code on Tekonsha Prodigy P2 Brake Controller

Question

Question:

My prodigy p2 constantly flashes .c. when not connected to my trailer. Flashes pl when brakes are applied. Thought it may be corrosion so I replaced 7 point plu on truck. What could cause these codes?

asked by: Brian

0

Expert Reply:

The code ".c." indicates that the boost feature is engaged or the trailer is connected. The best route to fix this issue is to trace the tow package wiring from the 7-way as far foward as possible, looking for any damaged sections. I would also make sure the brake controller wiring is properly connected under the dash.

The code "PL" indicates power interruption while brake pedal is pressed according to the instruction manual for the Tekonsha Prodigy P2 Trailer Brake Controller # 90885 that is linked on this page. This code indicates that the controller is losing power on the black wire when you press the brake pedal or use the manual override. It's likely caused by a loose connection with the black wire so that's the first thing to check.

Also make sure all of the splices under the dash are good and make sure none of the wires are loose at the connector.

I've also linked a help article on troubleshooting brake controllers for you.

expert reply by: Timothy G

0

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

Since the Tekonsha BRAKE-EVN Trailer Brake Controller #TK63VR is not getting 12 volts of power when the vehicle is running and pressing the brake pedal this is why the controller is not working. You can test for another wire on your brake switch that…

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Answer 3

Thanks for writing in Steve. For the 2023 Nissan Frontier I recommend our etrailer Trailer Hitch Receiver - Custom Fit - Matte Black Finish - Class III - 2" #e98869. The weight capacity of this hitch is 500 pound tongue weight, and a 5,000 pound…

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Answer 4

It sounds like you lost power to your Tekonsha Voyager Brake Controller #39510. The installation instructions say to check for corrosion on the plug contact or loose wiring. Most likely that is the problem, you might find that just wiggling the…

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Answer 5

From what I could find, it looks like the plug for a trailer brake controller on your 2023 Nissan Frontier is located in the same location as the 2022 model year. That is behind the side panel by the OBD connector and is likely pushed back into the…

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Answer 6

The PL code on the Tekonsha P2, #90885, indicates that there is a power loss while you are stepping on the brakes. The first thing I would check is the red wire. Using a circuit tester like #PTW2993, test the red wire when you step on the brake. It…

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Answer 7

What you are describing sounds like corrosion on the brake output circuit of your vehicle 7-way. When the controller detects a load on the circuit (typically from the trailer brake magnets) it will say that it has connected to a trailer. Corrosion…

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Answer 8

The flashing C on your Tekonsha Prodigy P2 Trailer Brake Controller #90885 sounds like there is corrosion on the brake output circuit of your vehicle 7-way. When the controller detects a load on the circuit (typically from the trailer brake magnets)…

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Answer 9

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 10

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 11

To install a Redarc Tow Pro Liberty in your 2023 Toyota Tacoma Sport you will need the following parts: Redarc Tow-Pro Liberty Brake Controller item #RED24FR Plug-and-Play Wiring Harness for Redarc Tow-Pro Trailer Brake Controllers item #RED99FR…

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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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What Causes PL and .c. Error Code on Tekonsha Prodigy P2 Brake Controller

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