Troubleshooting Tekonsha Brake Controller That Shows Open Ground, No Brakes

Question

Question:

I have the p3 it start giving the open ground warning so I added a ground to a good ground bolt so I have the battery ground and a frame ground and it still showing the warning. But this morning my batteries were weak could this be the cause are could weak batteries cause the problem

asked by: Aaron A

0

Expert Reply:

The open ground error that the P3 is displaying means it has lost its ground connection to the vehicle battery. This could be a faulty ground inherent in the wiring on the vehicle where the harness plugs in. To see if that is the issue you can bring out a separate car battery if you have one available and sever the white wire on the harness and connect it instead to the negative terminal on the second battery. If that stops the error then you know the issue is a bad ground. A weak battery will not cause this error.

expert reply by: Chris O

0

Answer 1

If you are getting a no trailer connected warning on your Tekonsha Prodigy P3 #90195 you may have a corroded or dirty connector which is hampering the connection. Check the vehicle and trailer plug to see if there is any type of corrosion or dirt…

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Answer 2

The owner&#39;s manual for the Tekonsha Prodigy P3 #90195 states 4 possible causes of a &quot;NO Trailer Connection!&quot; warning: the trailer is not connected to the tow vehicle, the trailer is connected with an open circuit…

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Answer 3

The Kenda tire like what's used on the #AM32161 in size ST205/75R14 are rated for 81 mph, a similar wheel/tire combo from Taskmaster would need to be purchased separately because we don't currently have a combined option from that…

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Answer 4

I am not entirely sure what process you took so I'll give you some other things to try, or maybe a different way to test the Prodigy P3 #90195. First, sever the blue wire a couple inches from the back of your controller. Then use a circuit…

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Answer 5

Assuming your trailer has brakes, you may still need a brake controller. GM started putting factory brake controllers in their trucks and SUVs in 2007, but it was an option. The factory brake controller did not come standard with the tow package.…

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Answer 6

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 7

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 8

A BT8 spindle would have a diameter of .99 of an inch where the bearings would both install and would have a diameter of 1.24 where the great seal would ride. That would require a hub part #AKIHUB-440-2-1K for an idler hub. A BTR spindle would have…

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Answer 9

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13…

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Answer 10

To determine the size of the hub assembly you need to purchase you have to determine which bearings are in the old assembly. If the old assembly has L44649 inner bearings, you would use the hub you chose #8-258-5UC1. If the inner bearings are…

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Answer 11

The three most common lug stud sizes for a trailer are 1/2"-20, 9/16"-18, and 5/8"-18. In order to make sure you get the correct lug nuts you need to measure the lug studs on the trailer now as we have no way to look this…

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Answer 12

Load range B trailer tires are going to have a lower capacity than C load range tires. Basically that, psi rating, and the ply rating are the only differences. A higher load range tire would last a little longer than lower load ranges of the same…

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Troubleshooting Tekonsha Brake Controller That Shows Open Ground, No Brakes

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