Troubleshooting Primus IQ Brake Controller that Is Jerking Trailer and Vehicle

Question

Question:

i am towing a float and the electric brakes have been ... bumped? or ? the float is jerking and so is my car. i have a jeep cherokee 2006 and a light olympic 2 horse float. the primus light reads 5 and 00 when stopped. i wasnt towing with horses so i played about with the dial but it didnt change then my friend suggested reversing it for 10 mtrs or so for reset but that didnt help. yes im a female ...stop rollin about on the floor laughing and tell me where i have done.

asked by: Erica S

0

Expert Reply:

Since you said the Primus brake controller part # TK90160 was possibly bumped you should check the mounting of the controller as it has to face squarely to the rear of the tow vehicle and has to be at the correct angle to operate properly as well. I attached pictures that shows the correct way the controller has mount for the inertia sensor to function properly without jerking the brakes.

If the trailer is jerking when you aren't applying the brakes of your tow vehicle and you are seeing numbers on the display of the controller at this time that would indicate that you have a short on the red wire of the brake controller to the black wire which is causing the controller to think you have the brakes on all the time and any bump is causing the controller to think you are hitting the brakes.

If you are still not sure what's going on let me know and I'll see if we can troubleshoot more. In meantime I attached a help article on troubleshooting brake controllers for you to check out as well.

expert reply by: Jameson C

0

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Answer 1

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 2

Although the Tekonsha Prodigy P3 #90195 and Primus IQ #TK90160 electric brake controllers are very similar they do have some key differences as well. For one the P3 is designed to work with electric and electric over hydraulic brake systems. The…

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Answer 3

Hey Terek, that doesn't sound fun at all. What brake controller do you have? I see you were looking at the discontinued Hayes Syncronizer 81725. If that is what you have, then there is only one adjuster wheel on this model, whereas some other…

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Answer 4

You are going to want either our Bearing Kit #BK2-100 or the Timken Kit #TMK52VR. Both of these kits will give you the inner/outer bearings and races along with a grease seal and cotter pin/D-washer for one hub. You always want to replace the race…

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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

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 7

An electric trailer brake controller is a device that installs in the cab of your tow vehicle and activates your trailer's electric or electric-over-hydraulic brakes when you hit the brakes in your tow vehicle. It's not a binary activation.…

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Answer 8

I'd be happy to assist you with that. First, you'll want to choose a brake controller. You could go with a traditionally mounted brake controller like the Tekonsha Primus, part #TK90160. This controller would work perfectly for you, as long…

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Answer 9

If your trailer uses electric drum brakes then you do not need a brake actuator-type a-frame coupler like #DM8609502. Instead you can use a standard a-frame coupler like #CA-5210-B since your brakes' power will come from the signal carried on the…

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Answer 10

Instead of a castle nut and a cotter pin, your Ez-Lube spindle used a D-washer and a nut retainer. After the bearings are repacked and the grease seal is in place, working the hub gently into place until it seats fully. Install the D-washer then the…

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Answer 11

On some models of the 2021 Ford F-150 the brake controller install port is present but there just isn't any power ran to it for some reason. The solution for that is to use the part #BRK-ELECKIT which gives you the parts needed to activate this…

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Answer 12

If you had a vehicle that needed a diode installed when installing a brake controller you'd need to install the diode like part #RM-690 on the red wire of the brake controller. This prevents the brake controller from back feeding onto the vehicle…

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Troubleshooting Primus IQ Brake Controller that Is Jerking Trailer and Vehicle

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