All Lights Work But Trailer Showing Not Connected on 2013 Ram 3500 with Factory Brake Controller

Question

Question:

On my 40foot 5th wheel trailer all turn signals, stop lights and tail lights work but on my dash when I set the amount of trailer braking I want I receive a dash warning, no trailer connected... which of course it is as the lights and blinkers work perfectly. I took the trailer to a rv shop today and they said when they hook their truck to my trailer the trailer brakes worked fine. So it must be with my truck somehow, fuse, relay, etc...??? Can you help?

asked by: Pat M

0

Expert Reply:

You're likely correct that this issue is with the truck, and I know that with the first generation of the factory integrated brake controllers on the Ram trucks there were a lot of issues like this that people have seen. You also mentioned that you changed the 7 way connector on your truck, so corrosion on the connection isn't going to come in play since it's new. I would start by checking the ground wire connections on the trailer and your vehicle's 7 way connection. You'll want to make sure that they are firmly connected to a paint and debris free surfaces.

If the ground wires are in good working order, I recommend checking the towing fuses on your truck to make sure that there isn't something blown on the trailer fuses (specifically the F11 fuse). Below you will find a list of the fuses that are related to the trailer connector on your 2013 Ram 3500.

F53 ATR 20 amp Left Trailer lights
F81 ATR 20 amp Right Trailer lights
F29 FFM 20 amp Trailer Park lights
F28 FFM 20 amp Trailer Back up lights
F30 FFM 30 amp Direct from battery
F11 J Case 30 amp Brake Lever
F87 ATR 10 amp ITBM module

The last thing I recommend looking at is on your vehicle's 7 way connector to make sure that power is being supplied to the brake wire when you press the brake pedal. If you're not getting power at the 7 way when the brakes are applied, it's likely that the issue is on this circuit; if you're not getting power you'll want to cut the blue brake wire on the factory brake controller and see if you're getting power at the back of the unit. If you're getting power from the unit there is an issue somewhere along the brake wire under the vehicle running to the 7 way connector.

If all of these check out and do not resolve your issues, please let me know and I can give you a couple of other spots to look.

expert reply by: Erik B

0

Markus

6/15/2024

I have a 2016 Ram 2500. I've been chasing multiple scenarios going down in a huge rabbit hole. I changed, brakes, plugs, wires and the internal brake controller. I have brakes and lights but still fighting with the trailer not connected. I need the option to choose the heavy brake option. The truck doesn't see a trailer connected so it will not allow to change settings.

Reply

Bud M.

6/15/2024

@Markus With having an internal brake controller you should check with your local Ram dealer to have the programming for the controller checked and updated. Since all the programming for this type of controller is through the trucks ECU I have seen occasions where the programming is messed up and causes all the issues.

Reply

Anthony

6/27/2024

@BudM so I just had my truck in the shop for this same exact issue. They recommended replacing the trailer brake module so I did. NOTE: if the truck come factory with a tow package you will not need it to be flashed. Fuse F30 check to see if if it’s blown this is where my problem is with my trailer breaks/ truck not recognizing a trailer is connected although all lights work. F30 fuse blew 3 fuses which tells me I have a wiring issue specifically with the trailer break / trailer connect feature. Best way to check this source is to pull the 4 pin plug from the break controller module, within that harness find the blue wire which is the trailer break wire which recognizes the trailer. If you put a multi meter on it turn ohm without pressing the breaks there should be zero continuity. If continuity is present then you have an open circuit on that wire. Spoke with dodge regarding this issue all they will do is inspect the wire to see if it’s grounding out somewhere replace that section and if they can’t find a cut ect within this wire they run a new wire from the 7 way plug to the blue wire into the module. Note if you don’t get continuity when testing then the problem consist within the wiring to the Tipm (fuse box).

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Answer 1

What is really frustrating about factory integrated brake controllers is that even the ones that say they are compatible with electric over hydraulic brakes don't always work properly. The factory controller of your 2013 Ram 3500 is supposed to…

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Answer 2

Unfortunately that is typical issue on a Ram 3500. There are many forums that talk about this. There is a fuse that you should check F30 that sometimes causes this issue. Next use a circuit tester like #PTW2993 to test the 5 o'clock pin which…

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Answer 3

I called my contact at Tekonsha and asked about replacing the Dodge Integrated Brake Controller if the truck is a 2010 through 2015. If you have a different year Ram just let me know and I can make some recommendations that will work for you. They…

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Answer 4

To install the #3023-P harness into your 2014 Ram 3500 you'll need to unplug the factory brake controller and use the same connector. Then the second 2-pin connector will normally be just above the brake pedal. If you check out the linked video…

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Answer 5

If your Ram's OEM trailer brake controller actually sends out a brake signal when you press the pedal (meaning you can feel the trailer's brakes engage when you're driving) but it does NOT send out any signal when you press the manual…

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Answer 6

Hey Robert, yes you would need the custom fit install harness part #3023-P to make the install of your Prodigy P3 part #90195 as easy as possible in your 2014 Ram 3500.

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Answer 7

There are a number of reasons why the brakes on your trailer may not be working. Lets start with the easiest things to check. First, check the vehicle and trailer connectors for corrosion. This can cause a short inside the connector and the brake…

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Answer 8

I attached a picture that shows where the red wire installs of the brake controller install harness part #3023-P but the easiest way to find it will be to watch the video I attached that shows how to find it as well.

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Answer 9

Brake controller wiring harness #3023-P is indeed a fit for your 2013 Ram 1500. If you do not already have a brake controller I recommend the P2 #90885. This controller is easy to set up and use and it is reliable. I have linked a video showing the…

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Answer 10

First you will want to ensure your 2015 Ram 1500 has the integrated brake controller set properly. Here are the steps to ensure your controller is set to the correct profile. When a trailer with electric/EOH brakes is plugged in, the trailer…

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Answer 11

When replacing a grease seal, the metal part of the seal will face towards the inside of the trailer and the rubber part of the seal will face toward the back side of the wheel. The air side of the seal is the flat side of the seal and faces out when…

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Answer 12

An oil seal like Redline part #9103309 installs in the back side of the hub (the side nearest the trailer's frame) with the sides or "legs" of the seal inserted into the hub's bore. This means that the flat metal surface of the seal…

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All Lights Work But Trailer Showing Not Connected on 2013 Ram 3500 with Factory Brake Controller

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