Should Prodigy P3 Brake Controller Show Low Voltage When Testing

Question

Question:

I have a P3 Trailer Brake Controller. I havent been able to get the brakes to work. When I measure the brake output voltage I get 2.2 with the power up at 14. I get around 1 when I set the power at 6. Is this normal?

asked by: Randy W

0

Expert Reply:

Are you using the manual override to test this? If so, then it would not be normal to see such low voltage. If you are testing with someone just pressing the brake it would be normal for the Prodigy P3 # 90195 to show low voltage since it's a proportional controller that needs to sense movement to send more voltage than that.

I also attached a help article that covers troubleshooting brake controllers for you to check out as well.

expert reply by: Jameson C

0

Answer 1

Hey Kris, thanks for reaching out! You'll already have a good idea of how to adjust the Tekonsha Prodigy P3 #90195, but it would be good to do a bit of a test run once your trailer is loaded just to make sure the brakes are operating safely and…

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Answer 2

It sounds as though there is a short or something is mis-wired. Using a circuit tester, like the #PTW2993, check the connection points in the vehicle side connector, to see if there is constant power on the running light circuit (brown wire on the…

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Answer 3

Start by testing the 7-way on your truck, because the only pin that should be lighting up when you apply the manual override is the pin in the 5 o'clock position, which is the brake controller output wire; there should not be power to the running…

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Answer 4

There should be five wires on your trailer side connector, a white wire which is for a ground, the yellow/brown and green/brown are for the running lights, a green wire for the right turn/stop light, and a yellow wire for the left turn/stop light…

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Answer 5

I suspect your problem is caused by a damaged or corroded trailer connector. Take a look at your trailer connectors, both the socket on your truck as well as the plug on the trailer. Look for green or white corrosion on the pins or sockets of the…

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Answer 6

What you are experiencing is due to the fact that LED taillights only require a very small amount of amperage to illuminate. A tiny amount can cause them to illuminate. Trailer wring for the most part goes totally dead when the vehicle is off. But…

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Answer 7

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 8

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 9

I agree it is the right time to upgrade to a Lithium charger/converter as not all are Lithium compatible. I recommend using the Progressive Dynamics Mighty Mini AC/DC Panel and Converter/Smart Charger - 60 Amp #PD4060K which is a replacement for your…

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Answer 10

The correct replacement for a Demco Master Cylinder 05680-C is the Replacement Master Cylinder part #5650. I spoke with Demco to confirm this for you.

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Answer 11

Brake systems are not dependent on the hub bolt pattern. So you can use the Electric Trailer Brake Kit #AKEBRK-7-SA for 12 inch hub/drums or #AKEBRK-35-SA for 10 inch hub/drums. Then use #10-1-1 wire sold by the foot for your brake magnet wiring.…

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Answer 12

To see all of the correct wheel and tire combos you'd need check out the link I attached. The option I would recommend is the part #TA43RR which is a Load Range C tire size ST175/80R13 mounted on a white spoke wheel with a bolt pattern of 5 on…

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Should Prodigy P3 Brake Controller Show Low Voltage When Testing

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