Will the Inertia Sensor On a Trailer Brake Controller Apply Brakes Without Pressing the Pedal

Question

Question:

I installed the Prodigy P2 in a 2003 Chevy Blazer as instructed except for the red brake wire. It seems to activate the trailer brakes when I slow down, and definitely activates the brakes with the lever. Theres no digital readout when just applying the brakes, however. Does the inertia sensor still activate the brakes when I decelerate, even though there is no numerical readout? Bonus question: do you happen to know where to find the brake wire on a 2003 S10 Blazer LS? Thank you

asked by: Jon S

1

Helpful Expert Reply:

The Tekonsha Prodigy P2 Trailer Brake Controller part # 90885 does indeed have an internal inertia sensor that senses deceleration and applys voltage to the trailer's brakes accordingly however, this inertia sensor must first become triggered from the brake pedal. Therefore, your trailer's brakes would not activate without the red wire attached and the brake pedal depressed.

Unfortunately, I don't have any wiring schematics for a Chevrolet Blazer but all you will need to do to find the stop light switch is test the bundle of wires behind the brake pedal and find the one that is only hot while the brake pedal is depressed.

expert reply by: Conner L

1

Answer 1

Your Dexter 5k axle uses 12" x 2" brakes, so the correct electric brakes are the following: - Electric Trailer Brake Kit - Self-Adjusting #AKEBRK-7-SA The other thing you will need is the mounting hardware, part #BRKH12.

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Answer 2

Electric trailer brakes like the ones found on the Trailer Axle w/ Electric Brakes - EZ-Lube - 5 on 4-1/2 Bolt Pattern - 89" - 3,500 lbs #e43SR can be used on boat trailers that go in both salt and fresh water, but there are a few things that…

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Answer 3

Thank you for the images. This shows me you currently have the Dexter Electric Trailer Brake Kit #23-105-106 on your 2007 Airstream Safari. I recommend upgrading to the Dexter Nev-R-Adjust Electric Trailer Brake Kit #23-458-459 as this will give you…

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Answer 4

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 5

To determine the size of the brake assemblies you need you have to measure the depth and width of the hub drum on the axle like what you see in the picture I attached. The most common size is 2-1/4 inch wide like the #T4071600-500 that you…

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Answer 6

The #84 spindle is just a common way to identify the spindle dimensions typically used for 3,500 lb axles. So instead of listing out the parts, people can just say they have #84 spindles and it's easier to know what fits it. The CE Smith Trailer…

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Answer 7

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 8

The etrailer.com Electric Trailer Brake Kit #AKEBRK-7-SA and the Dexter Nev-R-Adjust Electric Brake Kit # 23-464-465 referenced in your question are both self-adjusting assemblies that will work to replace the existing Dexter brakes on your 7,000…

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Answer 9

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Answer 10

Hi Calvin! All of the pre-greased hubs/drums, like the Terran Industries Trailer Hub and Drum Assembly - 3.5K Axles - 10" Diameter - 5 on 4-1/2 #TX68VJ, come with bearings made overseas and are all basically the same quality. At least that I…

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Answer 11

Even though I cannot comment specifically on the grease you used because I am not familiar with it, I can tell you the best grease for trailer bearings is a a grease with a rating of GC-LB, which just means it is made to withstand very high…

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Answer 12

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…

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Will the Inertia Sensor On a Trailer Brake Controller Apply Brakes Without Pressing the Pedal

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