Tire Pressure Monitoring

marlinpruett · Oct 13, 2018

When did the Expeditions start sending actual tire pressures readings via the TPS systems?
I have an after market Kenwood radio/GPS that monitors engine data including the TPS System. The info on the Kenwood shows actual pressures being displayed on the tire pressure screen but mine only shows a green condition ( pressure OK) or a red condition (pressure is low) for each tire.

LokiWolf · Oct 13, 2018

marlinpruett said:
When did the Expeditions start sending actual tire pressures readings via the TPS systems?
I have an after market Kenwood radio/GPS that monitors engine data including the TPS System. The info on the Kenwood shows actual pressures being displayed on the tire pressure screen but mine only shows a green condition ( pressure OK) or a red condition (pressure is low) for each tire.

I know the 15-17’s send actual Tire Pressure from the Sensors to the BCM, but no way to display that data because of the fact they Truck does not have a DDM(Module used in other Ford vehicles to display that Data).

You can see the Data with higher end Scanners or Apps with WiFi or BT OBDII adapters.

WifeyExpedition · Oct 13, 2018

Our '16 only has a light that shows a low pressure. No info on which tire. Kind of aggravating after having an '07 Tahoe that showed individual tire pressure.

marlinpruett said:
When did the Expeditions start sending actual tire pressures readings via the TPS systems?
I have an after market Kenwood radio/GPS that monitors engine data including the TPS System. The info on the Kenwood shows actual pressures being displayed on the tire pressure screen but mine only shows a green condition ( pressure OK) or a red condition (pressure is low) for each tire.

Sent from my Pixel 2 XL using Tapatalk

LokiWolf · Oct 13, 2018

WifeyExpedition said:
Our '16 only has a light that shows a low pressure. No info on which tire. Kind of aggravating after having an '07 Tahoe that showed individual tire pressure.

Sent from my Pixel 2 XL using Tapatalk

Again, The data is there, the ability to see it is lacking with in the OEM displays.

WifeyExpedition · Oct 13, 2018

What is the easiest way to show it short of manually checking each tire?

LokiWolf said:
Again, The data is there, the ability to see it is lacking with in the OEM displays.

Sent from my Pixel 2 XL using Tapatalk

LokiWolf · Oct 13, 2018

WifeyExpedition said:
What is the easiest way to show it short of manually checking each tire?

Sent from my Pixel 2 XL using Tapatalk

Let me see if the free FORSCAN Mobile app can see it when I get home this afternoon. I am out and the Wife is Home with the Expedition. I will also try my Amazon cheaper wireless reader.

JExpedition07 · Oct 13, 2018

My 07’ also just gives a warning in the message center and a light if it gets low (I believe below 30 psi). Not sure if the computer actually knows the true pressures I assume it does if you use aftermarket setup that can access it. Otherwise the sensor would have to be the “brain” and know what is too low, this likely isn’t the case. If I remember correctly my owners manual states the TPMS sensors report pressure to the computer every 3-5 minutes and if it is below a threshold the computer sets off a warning. Info is likely there but we can’t access it.

LokiWolf · Oct 13, 2018

JExpedition07 said:
My 07’ also just gives a warning in the message center and a light if it gets low (I believe below 30 psi). Not sure if the computer actually knows the true pressures I assume it does if you use aftermarket setup that can access it. Otherwise the sensor would have to be the “brain” and know what is too low, this likely isn’t the case. If I remember correctly my owners manual states the TPMS sensors report pressure to the computer every 3-5 minutes and if it is below a threshold the computer sets off a warning. Info is likely there but we can’t access it.

Yep, Sensor makes no decision just sends the Data.

The set point can be adjusted via many programmers and FORSCAN. I use my Hypertech to increase the set point. The set point is the desired pressure not the point at which to alert.

LokiWolf · Oct 13, 2018

Got a Setup that works...

This is on an iPhone Xs Max Running iOS 12.0.1

I am using a Kiwi 3 Adapter, the OBDFusion App(Free) with the Enhanced Ford Diags for 2017($9.99).

Add the Tire Pressure PIDs from the BCM(Body Control Module) to the Diag PID Screen. Sure I can add it to a DashBoard, but haven’t gotten that far.

LokiWolf · Oct 13, 2018

Here you go, for those that don’t take my word for things lately.

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Tire Pressure Monitoring

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