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Between this photo & all my earlier posts describing where to find the factory tow package trailer brake controller connector, everyone should be able to find it now. The photo was taken from the driver side footwell looking up under the dash angled slightly towards sidewall. You can see the driver's side dash speaker at top of image. I have the Tekonsha Mopar connector attached to the factory plug. The factory plug (female) is on bottom & Tekonsha connector (male with red, white, blue & black wires) is on top. A cable tie secures the factory plug to an adjoining wire loom. I couldn't safely cut the tie without risking damage to loom wires (tight quarters up there) so I left it alone. The Tekonsha connector had plenty of wire length. There may be a factory blank male connector piece (no pins or wires coming out of it) in the female part of the connector for protection purposes. I vaguely recall that but it's been nearly a year since it did my controller install. Anyone doing an install please confirm a factory male blank connector that needs removed yes or no?

I also attached a photo of what my controller mount looks like. Cut & painted piece of luan wood & secured to bottom of dash (below the hood latch & notched around OBD port) using 3 bolts (2 in the hush panel holes & 1 to "L" bracket I got from hardware store). "L" bracket attached to side wall metal support using self tapping screw. I just decided to leave the small hush panel off as it is not visible it has been removed.

3rd photo is figure from factory tow wiring instructions. The trailer brake connector is shown right above the "H" circle. It is not labeled or bold in this figure but does show its approximate location near the BCM on the sidewall under the dash.
 

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Could you tell me where you got pic #3? I have not had the factory tow package installed but ordered the factory tow harness and could really use the rest of those install instructions, thanks
 

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Could you tell me where you got pic #3? I have not had the factory tow package installed but ordered the factory tow harness and could really use the rest of those install instructions, thanks
I have the .pdf of the installation instructions. File is too large to attach in the forum. PM me your email and I will try sending it to you.
 

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What wireless controller would you recommend? We have a 2017 Pacifica Touring L with a factory tow package and a Jayco Flight Swift SLX?
 

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Between this photo & all my earlier posts describing where to find the factory tow package trailer brake controller connector, everyone should be able to find it now. The photo was taken from the driver side footwell looking up under the dash angled slightly towards sidewall. You can see the driver's side dash speaker at top of image. I have the Tekonsha Mopar connector attached to the factory plug. The factory plug (female) is on bottom & Tekonsha connector (male with red, white, blue & black wires) is on top. A cable tie secures the factory plug to an adjoining wire loom. I couldn't safely cut the tie without risking damage to loom wires (tight quarters up there) so I left it alone. The Tekonsha connector had plenty of wire length. There may be a factory blank male connector piece (no pins or wires coming out of it) in the female part of the connector for protection purposes. I vaguely recall that but it's been nearly a year since it did my controller install. Anyone doing an install please confirm a factory male blank connector that needs removed yes or no?

I also attached a photo of what my controller mount looks like. Cut & painted piece of luan wood & secured to bottom of dash (below the hood latch & notched around OBD port) using 3 bolts (2 in the hush panel holes & 1 to "L" bracket I got from hardware store). "L" bracket attached to side wall metal support using self tapping screw. I just decided to leave the small hush panel off as it is not visible it has been removed.

3rd photo is figure from factory tow wiring instructions. The trailer brake connector is shown right above the "H" circle. It is not labeled or bold in this figure but does show its approximate location near the BCM on the sidewall under the dash.
Thank you very much for this. I finally got a brake controller as I am leaving Washington state to reside in Minnesota and am taking my pop up trailer and cargo/people two mountain ranges. I ended up buying the Primus IQ and the right Tekonsha adapter as found on this thread. I did look up under the dash and couldnt find this plug... so thank you.

I am also going to try mounting the brake controller with some strong velcro... on the left hand side of course.
 

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I just helped another Pacifica owner install the Tekonsha 3045-P and my hands are hurting....it is a real tight fit under the dash and when you are older.......
 

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What is the Tekonsha part number? I've tried 3045 and 3021 and they don't fit. I've ordered 3024 now, is that correct? Picture of connector I found under the dash.
I found this connector as well and the 3045-p doesn't seem to match that configuration at all, is there another connector hidden up with this one?
 

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Just purchased 2018 Touring Plus with Tow package. If I don't connect a brake controller, does the 7 pin actually control the brakes on the trailer?
 

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Just purchased 2018 Touring Plus with Tow package. If I don't connect a brake controller, does the 7 pin actually control the brakes on the trailer?
No. The brake controller has the brains to properly apply the brakes on the trailer in response to the tow vehicle. If you apply the brakes gently on the tow vehicle, the trailer brakes will also be gentle. A hard stop will cause the trailer to brake hard as well. The controller also allows you to adjust for different trailer weights. A heavier trailer will require more braking force than a light trailer.
 

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No. The brake controller has the brains to properly apply the brakes on the trailer in response to the tow vehicle. If you apply the brakes gently on the tow vehicle, the trailer brakes will also be gentle. A hard stop will cause the trailer to brake hard as well. The controller also allows you to adjust for different trailer weights. A heavier trailer will require more braking force than a light trailer.
I don't disagree with this, but I wanted to add a bit for the sake of clarity.

You're describing the best brake controllers out there, but not all have the ability to vary brake force like this. The cheaper ones are known as "time delay" style controllers, and they have no way of knowing how much braking power the driver needs. You set them to a certain point, and they increase brake voltage up to that point over a short period once the brake lights come on. Whether you're lightly braking or in a complete panic stop, the trailer brakes behave the same. I *HATE* these kind of controllers, but they're out there.

A good brake controller, like the venerable Tekonsha Prodigy line, uses an inertia sensor to detect brake force, and varies the brake voltage to the trailer accordingly. They're far from perfect, but the best solution for a vehicle that doesn't have a controller integrated into the braking system.

Electric trailer bakes will not function without a brake controller. You'll be towing a trailer with no brakes at all, as there will be nothing to supply voltage to the brake signal line to actuate the magnetic actuators.
 

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Sorry to have to open this again, but I am absolutely unable to find the plug for the brake controller adaptor anywhere in the area described on my 2017 Touring L I have been all through the area (at least as far as I can figure) and can't find hide nor hair of the plug to attach the 3045-P adaptor into. In the Pac1 pic (5th pic) attached, I circled a plug on the Pacifica that is the same type of plug on the adaptor, but I can't find the plug I need that Nails provided with the green wires coming out of it. The only similar green wires I see are coming out the bottom of the white box in the Pac3 (3rd pic) picture attached. After feeling through the loom on the different wire packs in the area, I am pretty confident the plug is not hiding inside one of those, but I've been wrong before. Can someone nudge me in the right area with these pics.
 

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Did U try unplugging what you show in the last picture?I have a 2019 model and that looks like the dummy plug that I pulled to install the
3045P adapter.
 

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Did U try unplugging what you show in the last picture?I have a 2019 model and that looks like the dummy plug that I pulled to install the
3045P adapter.
Yeah...I have popped it out, but it is wired so if I were to plug the 3045-P into its spot, then it would be loose and no longer plugged in. Did yours have the red and black wire coming out of it like mine? From what folks have said, I should have a blank harness to plug into which led me to believe that and the white one to the right of it (also wired but same type of connector) were not what I needed.

I suppose I should also mention that mine doesn't have the factory wiring installed, but bought the OEM wiring harness. I took the van to a trailer shop and my mechanic as well, none of us were able to find the brake harness on the OEM harness or under the dash. I'm getting to the conclusion that maybe some of the earlier models don't have the harness on them.
 

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If your van doesn't have the trailer tow package then you won't have the plug in for a brake controller under the dash!
Thank you. Weird that it is not stock on the van, nor on the OEM part for the specific trailer tow package. After searching fruitlessly the first time, I figured it must be on the OEM wire harness (82214522-AB) but when that arrived and didn't have the plug either, I was going crazy looking for it under the dash again. Gonna return the OEM parts and go with a hardwire solution instead. At least the heavy duty radiator was much more straight forward. Once I get that installed, I just have to take it in for the software update and I'll have the whole trailer package, just with aftermarket wiring and hitch receiver. Should still be up and towing by our first summer trip.
 

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the factory brake control plug

Here is a pic of under the dash of the plug for the factory brake control option.
 

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