Any update on a Trailer TMPS system?

[{tpc}]

I was told Job2 '22 F150s come with the yaw sensor from the factory? The combination TPMS/camera/yaw sensor kit, ML3Z-1A189-E is now an option in the '22 order guide.

So I came here and was about to post about tpms/yaw things when I found this thread.

I believe my truck is a Job2 22, because it was built between Oct and dec. It also only came with stickers. My trailer however doesn’t have a lot of room for the stickers and frankly I’d rather be hard wired. So I bought the kit. Yaw sensor has a whopping 4 wires populated and the connector on the truck appears to have a lot more than that but I have not looked underneath yet, just inside.

So I’m trying to figure out where to get the tpms setup (hopefully for less than $500+) and wondering if I’ll have to somehow add the pins into the yaw sensor connector and all that. I don’t really need the trailer camera as I already have a furrion vison setup that works fine. And I’d rather not have to run wires for the camera anyway.

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[{tpc}]

Ok so I crawled underneath and looked today and it looks like there are only 2 wires in the connector despite it appearing to have all the pins inserted, but maybe I imagined that lol.

Not sure why the yaw sensor has 4 wires and this has 2. Guess I’ll find out if it doesn’t work, but I’ll attempt to attach using a removable method first, instead of wasting the included 3m tape, in case I end up using the sticker instead.

 

[{tpc}]

So just a quick update. I looked a little closer at the yaw kit. There are 4 pins in the 12 way that connects to the truck. There are only 2 pins that connect back to the yaw sensor itself. What the other 2 are for I do not know, but maybe that is for a different truck like f-250 or something.

From what I have read is that if you want to use sensor rather than sticker, you have to plug it in first before setting up everything else, otherwise it just tells you to use the sticker.

Still unclear about tpms stuff. Sounds like that’s more involved.

 

[SomebodyInGNV]

So I came here and was about to post about tpms/yaw things when I found this thread.

I believe my truck is a Job2 22, because it was built between Oct and dec. It also only came with stickers. My trailer however doesn’t have a lot of room for the stickers and frankly I’d rather be hard wired. So I bought the kit. Yaw sensor has a whopping 4 wires populated and the connector on the truck appears to have a lot more than that but I have not looked underneath yet, just inside.

So I’m trying to figure out where to get the tpms setup (hopefully for less than $500+) and wondering if I’ll have to somehow add the pins into the yaw sensor connector and all that. I don’t really need the trailer camera as I already have a furrion vison setup that works fine. And I’d rather not have to run wires for the camera anyway.

I bought a new-in-box TPMS/camera kit for a 2018 SuperDuty on ebay for $150+tax. The owner bought it for a new F350, never installed it, and has since sold the truck. It's on its way but I haven't seen it yet.

My XLT HDPP on order has every option that has anything to do with towing, including Co-Pilot Assist and MaxTow. I'm hoping that qualifies it for plug-and-play, or close. I'll do whatever wiring and Forscan tricks are necessary to get the TPMS working. Like you, I don't need the camera but, if it's as good as the Furrion and I can get rid of a screen, I'll try. If it comes with a functioning yaw sensor I may or may not bother blending them together.

EDIT:

From what I can find, the 2018 SuperDuty TPMS/camera kit is compatible with a 2022 SuperDuty. I don't know if SuperDuties are a new generation like F150. My sales guy (very young and inexperienced) was told the F150 TPMS/camera/yaw kit is compatible with F250. That combination suggests the 2018 TPMS/camera may be directly compatible with the F150. We shall see, but I won't have the truck for a few months. Maybe someone else will figure it out before then.

 

[{tpc}]

I bought a new-in-box TPMS/camera kit for a 2018 SuperDuty on ebay for $150+tax. The owner bought it for a new F350, never installed it, and has since sold the truck. It's on its way but I haven't seen it yet.

My XLT HDPP on order has every option that has anything to do with towing, including Co-Pilot Assist and MaxTow. I'm hoping that qualifies it for plug-and-play, or close. I'll do whatever wiring and Forscan tricks are necessary to get the TPMS working. Like you, I don't need the camera but, if it's as good as the Furrion and I can get rid of a screen, I'll try. If it comes with a functioning yaw sensor I may or may not bother blending them together.

EDIT:

From what I can find, the 2018 SuperDuty TPMS/camera kit is compatible with a 2022 SuperDuty. I don't know if SuperDuties are a new generation like F150. My sales guy (very young and inexperienced) was told the F150 TPMS/camera/yaw kit is compatible with F250. That combination suggests the 2018 TPMS/camera may be directly compatible with the F150. We shall see, but I won't have the truck for a few months. Maybe someone else will figure it out before then.

What did you use as a search term on eBay for the kit? I’d gladly pay that much for sensors, camera, and whatever else. I just paid a little more than that for the yaw sensor.

 

[SomebodyInGNV]

What did you use as a search term on eBay for the kit? I’d gladly pay that much for sensors, camera, and whatever else. I just paid a little more than that for the yaw sensor.

I don't even recall. I think it was something basic like "Ford trailer TPMS".

EDIT: Search sold items on ebay for 234398516153. It was posted on the 6th. The seller accepted my offer on the 8th. At worst, I can sell it at cost, or maybe more.

My browser history shows my search term was "ford superduty tpms".

FYI - if interested, I found documentation for the kit here.

 

[daemonic3]

So just a quick update. I looked a little closer at the yaw kit. There are 4 pins in the 12 way that connects to the truck. There are only 2 pins that connect back to the yaw sensor itself. What the other 2 are for I do not know, but maybe that is for a different truck like f-250 or something.

From what I have read is that if you want to use sensor rather than sticker, you have to plug it in first before setting up everything else, otherwise it just tells you to use the sticker.

Still unclear about tpms stuff. Sounds like that’s more involved.

That's the exact opposite for me. My Job1 truck-side of the 12pin plug has only 2 wires connected (power and ground) while my sensor cable has 4 wires populated. Most folks' yaw sensors (with their job1 trucks) only had 2 wires populated, not sure why mine was "special".

Here was the pinout I found. The Job1 trucks only needed pins 4-5 to power the yaw sensor. If they are going back to wired TPMS modules and we have to replumb our wiring to the harness for it, that's taking a step backward since the latest TPMS should take advantage of various wireless technologies out there!

 

[{tpc}]

That's the exact opposite for me. My Job1 truck-side of the 12pin plug has only 2 wires connected (power and ground) while my sensor cable has 4 wires populated. Most folks' yaw sensors (with their job1 trucks) only had 2 wires populated, not sure why mine was "special".

Here was the pinout I found. The Job1 trucks only needed pins 4-5 to power the yaw sensor. If they are going back to wired TPMS modules and we have to replumb our wiring to the harness for it, that's taking a step backward since the latest TPMS should take advantage of various wireless technologies out there!

I think I confused you to as what I was saying.

The yaw sensor itself…the box…no harness attached, has only 2 pins.

The cable included with the yaw sensor has an end that plugs into the sensor, with only 2 pins. Which makes sense, right?

The other end of the yaw sensor cable, the one that plugs into the truck has 4 pins in it. So either 2 of those pins go nowhere inside that harness or maybe they are tied to the other 2 pins. Not sure as I have not put my meter on it yet.

The plug on the truck has 2 wires connected to it.

So I feel that the extra 2 pins do nothing. Maybe they are tied to the other 2 to send feedback to another part of the truck. Maybe it’s an older harness designed for another truck. Or maybe the truck needs 2 extra lines run somewhere else for feedback as well as the 2 existing lines that are populated.

The reality is the sensor itself has 2 pins on it. So it only needs 2 pins to function. Like I said, the truck might need more. We would need a wiring diagram of the truck to figure that out. The sensor, now matter how you slice it, is a 2 wire device.

Now I wouldn’t be surprised if ford just left some kind of can bus wiring there or as you said “power and ground”.

If the wired yaw sensor doesn’t work (Ive yet to try or even see if the pins line up to populated ones on the truck), and it truly is a power and ground situation, it would make sense that this has been strictly populated for tpms only.

Here is my reasoning for that. I’m guessing that the tpms isn’t strong enough to reach the receiver in the truck. So the “box” that is connected probably only has 2 pins as well (power and ground) because it’s a simple “repeater” designed to strengthen the signal from the sensors up to the receiver.

And with that you have the reason why almost every truck is built with some kind of different harness based on configuration. It’s why you can’t just add a power fold mirror and plug and play it it. Cost. Companies have been doing it forever. We think it would just be easier to make one harness that does it all. Maybe that is true or used to be, but now it’s literally about 2 pennys being saved, that makes these “simple” things a headache for us.

I see it all the time in my profession. We could use one part that works tried and true and has forever. But if that part costs a dollar, and a similar part costs .95 cents, we will spend thousands of dollars to test out the .95 cent part, put it into production and then wonder, years down the road, why the product now has an issue where it never happened before.

Shareholders have to have “record profits” every quarter. Wasn’t always like that. Used to be make a quality product. Now it’s just make me more money.

 

[{tpc}]

Ok I’ve done a little more investigation.

I can confirm that of the “4 pins” that are populated on the yaw sensor cable (the end that plugs into the truck), only 2 of them travel back to the yaw sensor itself. The other 2 do not seem to connect to anything. They are not shorted to each other for some sort of feedback loop, nor are they shorted to the other wires.

The two that travel back to the yaw sensor are colored white with a blue stripe and violet.

The 2 that go into the back of the 12 way on the truck are also colored white with a blue stripe and violet. Because this is a square connector into a round plug, without pulling the connector I can’t tell if they go to the same location. It’s too cold right now for me to do this, and I’d rather not for fear of breaking the connector or messing up a water tight seal.

Upon a second look at the pin out posted earlier, and a second look at the connectors, the one on the truck is definitely violet with a brown stripe. The one on the yaw sensor harness looks like violet with a gray stripe but maybe I’m just seeing it wrong, as it did come with the yaw sensor after all.

That said once I can confirm that they go to the same location, I will give it a try.

The pin out colors match as expected (assuming the color of the yaw sensor one is just faded or something). So that’s good. The only violet with a gray is for the camera, but this is the harness that came with the yaw, so either they used the wrong color (possible but unlikely), it’s just faded or something, or it’s a color change for a different truck.

What would really be helpful is knowing what the pin out on the 12 way actually is. Can’t find any indicators which show where pin 1 or 12 is.

 

[Buyer2021]

What would really be helpful is knowing what the pin out on the 12 way actually is. Can’t find any indicators which show where pin 1 or 12 is.

Just FYI, a 24-hour subscription to the complete service manual which includes all wiring diagrams and connector details (connector diagram, pin assignments, and wire colors) is only $22.

Pricing - FordServiceInfo.Com (motorcraftservice.com)

 

[{tpc}]

Just FYI, a 24-hour subscription to the complete service manual which includes all wiring diagrams and connector details (connector diagram, pin assignments, and wire colors) is only $22.

Pricing - FordServiceInfo.Com (motorcraftservice.com)

Thank you! This should be helpful in the future. I did happen to stumble across more info which I am about to post.

 

[{tpc}]

So upon a little more searching I found the pin out and some wiring diagrams. I’ll post here, apologies if they aren’t perfect, but it’s just how they downloaded to my phone.

The yaw sensor cabling goes to pins 4 and 5 which was expected, will still have to confirm on the truck if those are the populated pins.

To me this confirms yaw sensor connections/operation.

The unfortunate part is tpms operation. The diagrams I found indicate power and ground as expected is needed for tpms. But it also shows can bus is needed as well.

The 2 “extra” pins on the yaw sensor cable that aren’t connected to anything, are actually used for can bus. So maybe the intention is to pigtail into there for can bus for the tpms, and then power could come from anywhere.

The mystery to me is why power and ground are not already in that connector at a minimum. I have the 360 camera, bed camera, and I believe the led chml, so according to the diagram (though I think it’s for 2021) power should at least be there. Like I said too cold to be under the Truck right now. Maybe there is a bundle of wires or a power wire tied off somewhere.

Here are the diagrams. Edit: these are from a super duty. Not a 2022 f150

 

[Buyer2021]

So upon a little more searching I found the pin out and some wiring diagrams.

Please post the link to your source. Are these diagrams known to be specific to the 2022 F150?

 

[{tpc}]

Please post a link to your source. Are these diagrams known to be specific to the 2022 F150?

I just looked these are diagrams from a super duty I believe. Not specific to the 2022.

 

[daemonic3]

I think I confused you to as what I was saying.

The yaw sensor itself…the box…no harness attached, has only 2 pins.

The cable included with the yaw sensor has an end that plugs into the sensor, with only 2 pins. Which makes sense, right?

The other end of the yaw sensor cable, the one that plugs into the truck has 4 pins in it. So either 2 of those pins go nowhere inside that harness or maybe they are tied to the other 2 pins. Not sure as I have not put my meter on it yet.

The plug on the truck has 2 wires connected to it.

So I feel that the extra 2 pins do nothing. Maybe they are tied to the other 2 to send feedback to another part of the truck. Maybe it’s an older harness designed for another truck. Or maybe the truck needs 2 extra lines run somewhere else for feedback as well as the 2 existing lines that are populated.

The reality is the sensor itself has 2 pins on it. So it only needs 2 pins to function. Like I said, the truck might need more. We would need a wiring diagram of the truck to figure that out. The sensor, now matter how you slice it, is a 2 wire device.

Now I wouldn’t be surprised if ford just left some kind of can bus wiring there or as you said “power and ground”.

If the wired yaw sensor doesn’t work (Ive yet to try or even see if the pins line up to populated ones on the truck), and it truly is a power and ground situation, it would make sense that this has been strictly populated for tpms only.

Here is my reasoning for that. I’m guessing that the tpms isn’t strong enough to reach the receiver in the truck. So the “box” that is connected probably only has 2 pins as well (power and ground) because it’s a simple “repeater” designed to strengthen the signal from the sensors up to the receiver.

Gotcha! I don't remember inspecting the black box side of the cable, just the side at the 12pin plug.

The way nearly all the TPMS systems you can get aftermarket work is they are each a BLE (bluetooth low energy) transmitter that does simple advertising at a regular interval. Some receiver has to be listening on that channel and know how to decode it. A lot of them come with a little LCD monitor that knows the exact frequencies and channels. Most come with 4 sensors and can only cover the range/distance of a standard car. Then there are the ones with a repeater and come with 6 sensors, for trailer/RV use. The repeater collates the tires then sends to the display (or receiver) on a different channel so there are 2 short hops rather than one long hop. The reason is to cover a distance that far the power level (dBm) you'd have to transmit is exponentially more and would drain the coin cell so quickly it would be impractical.

Anyway the sensor networks in these cars seemed to be migrating from wired CAN bus (simple serial protocal) to wireless where they can communicate to some wireless-to-CAN bus bridge to appear legacy compatible. THAT's why I assumed all our devices plugging into the 12pin trailer connector would be going wireless since it only provided the 5V power and ground. If they are going back to the superduty wired versions of the TPMS and camera then that seems to be walking backward tech-wise and now we have to retro-fit our plugs.

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