Were you aware that the non factory tow package DD have a much less tow capacity?

 

I did see see that in other posts. My camper is light weight so that shouldn’t be an issue for me.

 

Update... Got my Durango back from the dealer, all output on the 7 way connector works as it should after the reflash. Just no signal from the electronic brake controller since the 4 pin plug is missing. Now I need to figure out a way to wire the brake controller...

 

What issues are you still having? I have a 19 R/T as well and plan on having the dealer install a P3 on mine and set up the Blue Ox hitch. Should I expect issues?

 

Honestly, my dealership near me has a really bad service dept. They were no help in my case. It was not hard to wire up myself after doing a bunch of research.

 

I finally got everything working! There is a wire on the factory harness that is capped off. That is the wire for the electric trailer brakes.

I then added a ground wire and 12v from the fuse box with a 30amp fuse to the brake controller along with the blue wire. Finally I tapped into the brake switch wire in the BCM credit to Redline R/T and his post in all the pin outs for 14+ Durango

All the wiring info youll ever need for your 14' Durango! ( Please Sticky This)

“Brake Wire white/purple or dk. green/white + BCM above passenger kick, white 24 pin plug (D), pin 18”

I went with a Curt Spectrum brake controller for a more “factory look”

 

I finally got everything working! There is a wire on the factory harness that is capped off. That is the wire for the electric trailer brakes. View attachment 109823


I then added a ground wire and 12v from the fuse box with a 30amp fuse to the brake controller along with the blue wire. Finally I tapped into the brake switch wire in the BCM credit to Redline R/T and his post in all the pin outs for 14+ Durango

All the wiring info youll ever need for your 14' Durango! ( Please Sticky This)

“Brake Wire white/purple or dk. green/white + BCM above passenger kick, white 24 pin plug (D), pin 18”

View attachment 109824

I went with a Curt Spectrum brake controller for a more “factory look”

Did you use the factory location for the 12v supply? My 2019 R/T seems to have the fuse and wire leaving the fuse block but I’m not sure where it goes from there

I’m in the same situation as you were but I’m searching for where the factory wires are located.

Thanks

 

Which wire are you talking about? The 12 v supply for the 7 way connector or the 12 v supply for the brake controller?

 

The 12v supply for your brake controller? Did you use the factory fuse location or just tap it on and use a inline fuse? My RT has the wire leaving the fuse block for the trailer brake supply but I can’t locate it once it leaves

 

I purchased a 20 amp auto reset fuse and mounted it next to the factory fuse box. Then connected it to the positive terminal on the fuse box under the 10mm nut.

All run with a minimum 10 ga wire.

 

For the break detect wire on the break controller I gave up and finally just ran a wire from the lift gate break light. Only place I could find 12v only active when the break was depressed. 19 durango here, no tow package.

 

Thanks for the good information. This has been extremely helpful. I have 2020 DD GT. No factory tow of any kind. I bought Mopar hitch and 7 pin harness with new fuse box. Got it all installed on my own. I made a few errors that I corrected and got worked out. Paid a local dealer $ 140.00 to reflash the program and activate the trailering functions. The 7 pin is all good and full of power. I am now adding the Curt Spectrum brake controller. Of course, there is no brake controller plug or harness wire. I cut the plug off the Curt Spectrum controller box, made my own harness and proceeded to hook the (4) wires. Hot wire, ground wire, and the blue wire for trailer brakes all hooked up, no issues. The last item to find is the getting brake light signal which activates the controller to apply brakes. As the Durango has many small thin wires, these are used to trigger relays that actually carry the needed current to the lamp or device. I pulled out and disassembled the switch above the brake pedal. There were (3) tiny thin wires on the plug. I am wanting to get a full power wire to trigger the brake controller. So I chose not to use any of the wires at the brake pedal as these clearly are relay trigger wires. I have read nearly every thread on this board regarding tow wiring on the 2019 and 2020 DD. Now as for your note above where you picked up your the Brake Light signal on Plug C4/D, Pin 18. This too is a thin wire and can only be a relay trigger wire and not a real brake light wire. This is where I have gotten stuck. Does your Curt Spectrum get a proper (sufficient) signal to actuate the trailer brakes consistently with the trigger wire alone? I have found the diagram below from an older DD which aligns to the 2020 DD. The DG wire normally associated with a factory harness is heavy gauge. So I know there might be a better choice to hook this up more like the factory controller harness.

Here is a wiring diagram that I have found in another thread:

In the above image, look at the "Module Body Control". In the lower right corner is the Brake Lamp Switch - C4/D Pin18, WH/Purple or DG/Wh wire. This is where you tapped in for the Brake controller trigger wire and shown with the tap in your picture. (Also btw ... your 2019 white MCB box is shaped differently than the 2020 version in my D) As indicated above, I am a bit concerned about tapping this thin wire as a trigger for the Curt Spectrum Controller.

The next symbol below this is SP101. I do not know what this is?? Is this a relay??? from here, the diagram shows A in a triangle. When you link this to the A Triangle on the right side of the image, it now connects to B15 DG/WH. When I look at the B15 plug, there is no DG/Wh wire. There are only 2 heavy wires out of (4) pin positions in the "B" plug. Based on the wiring diagram and the plug with missing "heavy wires", I suspect this is the exact spot a factory brake controller harness would come into the plug.

Here is the B -Plug. See the "heavy gauge wires vs the "thin wires".

This plug is very difficult to reach. It poured rain today so I had no chance to try and test this plug and verify that it is indeed the proper position to trigger the trailer brake controller.

Can anybody else comment on my desire to find and use a proper "heavy wire" to trigger the brake controller?

(I also sent time looking through the fusebox and relays looking for a heavy wire for the Rear, High Mount Stop Lamp as an alternative trailer brake controller trigger point.

I welcome everyone's thoughts, comments and feedback.

 

Thanks for the good information. This has been extremely helpful. I have 2020 DD GT. No factory tow of any kind. I bought Mopar hitch and 7 pin harness with new fuse box. Got it all installed on my own. I made a few errors that I corrected and got worked out. Paid a local dealer $ 140.00 to reflash the program and activate the trailering functions. The 7 pin is all good and full of power. I am now adding the Curt Spectrum brake controller. Of course, there is no brake controller plug or harness wire. I cut the plug off the Curt Spectrum controller box, made my own harness and proceeded to hook the (4) wires. Hot wire, ground wire, and the blue wire for trailer brakes all hooked up, no issues. The last item to find is the getting brake light signal which activates the controller to apply brakes. As the Durango has many small thin wires, these are used to trigger relays that actually carry the needed current to the lamp or device. I pulled out and disassembled the switch above the brake pedal. There were (3) tiny thin wires on the plug. I am wanting to get a full power wire to trigger the brake controller. So I chose not to use any of the wires at the brake pedal as these clearly are relay trigger wires. I have read nearly every thread on this board regarding tow wiring on the 2019 and 2020 DD. Now as for your note above where you picked up your the Brake Light signal on Plug C4/D, Pin 18. This too is a thin wire and can only be a relay trigger wire and not a real brake light wire. This is where I have gotten stuck. Does your Curt Spectrum get a proper (sufficient) signal to actuate the trailer brakes consistently with the trigger wire alone? I have found the diagram below from an older DD which aligns to the 2020 DD. The DG wire normally associated with a factory harness is heavy gauge. So I know there might be a better choice to hook this up more like the factory controller harness.

Here is a wiring diagram that I have found in another thread:

View attachment 109973

In the above image, look at the "Module Body Control". In the lower right corner is the Brake Lamp Switch - C4/D Pin18, WH/Purple or DG/Wh wire. This is where you tapped in for the Brake controller trigger wire and shown with the tap in your picture. (Also btw ... your 2019 white MCB box is shaped differently than the 2020 version in my D) As indicated above, I am a bit concerned about tapping this thin wire as a trigger for the Curt Spectrum Controller.

The next symbol below this is SP101. I do not know what this is?? Is this a relay??? from here, the diagram shows A in a triangle. When you link this to the A Triangle on the right side of the image, it now connects to B15 DG/WH. When I look at the B15 plug, there is no DG/Wh wire. There are only 2 heavy wires out of (4) pin positions in the "B" plug. Based on the wiring diagram and the plug with missing "heavy wires", I suspect this is the exact spot a factory brake controller harness would come into the plug.


View attachment 109971



Here is the B -Plug. See the "heavy gauge wires vs the "thin wires".



View attachment 109972




This plug is very difficult to reach. It poured rain today so I had no chance to try and test this plug and verify that it is indeed the proper position to trigger the trailer brake controller.

Can anybody else comment on my desire to find and use a proper "heavy wire" to trigger the brake controller?

(I also sent time looking through the fusebox and relays looking for a heavy wire for the Rear, High Mount Stop Lamp as an alternative trailer brake controller trigger point.

I welcome everyone's thoughts, comments and feedback.

I didn't find a separate fuse in the box for the rear high stop light so I just ran a wire directly to the harness in the rear hatch and tapped it there.

 

Thanks for the good information. This has been extremely helpful. I have 2020 DD GT. No factory tow of any kind. I bought Mopar hitch and 7 pin harness with new fuse box. Got it all installed on my own. I made a few errors that I corrected and got worked out. Paid a local dealer $ 140.00 to reflash the program and activate the trailering functions. The 7 pin is all good and full of power. I am now adding the Curt Spectrum brake controller. Of course, there is no brake controller plug or harness wire. I cut the plug off the Curt Spectrum controller box, made my own harness and proceeded to hook the (4) wires. Hot wire, ground wire, and the blue wire for trailer brakes all hooked up, no issues. The last item to find is the getting brake light signal which activates the controller to apply brakes. As the Durango has many small thin wires, these are used to trigger relays that actually carry the needed current to the lamp or device. I pulled out and disassembled the switch above the brake pedal. There were (3) tiny thin wires on the plug. I am wanting to get a full power wire to trigger the brake controller. So I chose not to use any of the wires at the brake pedal as these clearly are relay trigger wires. I have read nearly every thread on this board regarding tow wiring on the 2019 and 2020 DD. Now as for your note above where you picked up your the Brake Light signal on Plug C4/D, Pin 18. This too is a thin wire and can only be a relay trigger wire and not a real brake light wire. This is where I have gotten stuck. Does your Curt Spectrum get a proper (sufficient) signal to actuate the trailer brakes consistently with the trigger wire alone? I have found the diagram below from an older DD which aligns to the 2020 DD. The DG wire normally associated with a factory harness is heavy gauge. So I know there might be a better choice to hook this up more like the factory controller harness.

Here is a wiring diagram that I have found in another thread:

View attachment 109973

In the above image, look at the "Module Body Control". In the lower right corner is the Brake Lamp Switch - C4/D Pin18, WH/Purple or DG/Wh wire. This is where you tapped in for the Brake controller trigger wire and shown with the tap in your picture. (Also btw ... your 2019 white MCB box is shaped differently than the 2020 version in my D) As indicated above, I am a bit concerned about tapping this thin wire as a trigger for the Curt Spectrum Controller.

The next symbol below this is SP101. I do not know what this is?? Is this a relay??? from here, the diagram shows A in a triangle. When you link this to the A Triangle on the right side of the image, it now connects to B15 DG/WH. When I look at the B15 plug, there is no DG/Wh wire. There are only 2 heavy wires out of (4) pin positions in the "B" plug. Based on the wiring diagram and the plug with missing "heavy wires", I suspect this is the exact spot a factory brake controller harness would come into the plug.


View attachment 109971



Here is the B -Plug. See the "heavy gauge wires vs the "thin wires".



View attachment 109972




This plug is very difficult to reach. It poured rain today so I had no chance to try and test this plug and verify that it is indeed the proper position to trigger the trailer brake controller.

Can anybody else comment on my desire to find and use a proper "heavy wire" to trigger the brake controller?

(I also sent time looking through the fusebox and relays looking for a heavy wire for the Rear, High Mount Stop Lamp as an alternative trailer brake controller trigger point.

I welcome everyone's thoughts, comments and feedback.

Did you run a separate 12v supply to your brake controller like DurangoTowing or were you able to find the wire that fuse F11 feeds?

 

I tapped into the red wire coming out of fuse box going to the "running hot" in the 7 pin harness. Added my 30 Amp breaker and went straight into the brake controller.

 

I did yes.. Could not find the dang wire anywhere, even tried to trace it down with a wire toner. It's hidden somewhere in the wire loom under the glove box but I couldn't find it. Ill double check in the morning but I think it was purple and white. You can access the wire by pulling down the plastic cover in the center of the lift gate. There are 2 wire harnesses there. It is the larger of the 2. I'll get you pics if you want in the morning.

 

Sorry it is green and white.. Here is where the wire is.

 

I did use the relay trigger wire and everything works for me. Yes it is pretty thin. Brakes and lights go on when manual button is pressed as well as When the pedal is pressed. As for taping the rear brake lights that seems like a really good option. To access the bcm plugs it is best to remove both the bottom bolts and drop it down to remove plugs. It is really difficult otherwise. I stayed away from the brake pedal switch wires since there were 3 and could not find the signal wire with a multimeter.

If you find a better larger wire for a brake source let me know. I would be interested is switching to that.

 

Just curious why you purchased a 2019 without a tow package if towing was your main thing? I assume you found a really nice one and got a great deal .

 

As for us.. We had no intention of towing but a new camper sort of fell in our laps and couldn't pass up the opportunity.

 

Separate. Terminal off the battery to a fuse then to the controller.

 

The factory 12V feed for the brake controller is, as known, fuse F11 (30A) and is located on plug C6, Pin 1. The problem is, there is no terminal in the 42-pin connector to the active 12V spot. To the connector is the 12V supplied, but nothing connected to it, it need a connectivity to crimp a wire to.
On the web, I found the plugs, witch are used on the PDC (C4 ...C7) at "Connector Experts" as CET4202BU (blue or GR, green for the color) but unfortunately no reference to the needed terminal or connectivity.
The one needed looks like a flat, femal car relays connector, similar but not fitting.
Wonder if someone know a sorce to get the correct terminal for the 42-pin plug. There are 3 sizes used, this is the biggest.

 

No, that only happens when the brake pedal is pressed.