A couple weeks ago I was driving and received a tire pressure sensor fault. When I got home I performed the relearning procedure by letting the air out of the tires in sequence. Drivers side front and passengers side front worked without an issue. The passengers side rear would not pickup so I went to the drivers side rear and when it worked I went back to the passenger side and it still did not work.

I then assumed it was the sensor so I bought a supposedly compatible one cheap from Amazon. Had a tire shop install it. They couldn't get it to program and I tried several times without any luck. I even bought the Motorcraft TPMS-19 tire pressure transmitter tool to program the sensors. This worked on all but the passengers side rear.

So now I purchased an official Motorcraft sensor from Tasca. I want to make sure this will work before I have the tire shop install it into the tire. This morning I put the sensor into an empty pop bottle and pressurized it to 35 PSI. I tried the relearn procedure again and it would not pickup the new sensor. I tried with both the transmitter tool and again by slowly letting air out of the bottle.

Am I missing something or should this work? I know you are supposed to drive the vehicle first to activate the senors but my truck has been sitting all night and the three sensors in the tires registered no problem.

Anyone have any ideas?

 

If you bought one from Tasca for your model year truck it should be the correct one.


You do need to get the proper sensor or it just won't communicate with your truck's TPMS computer.




Yeah, but....a brand new sensor may need to be "awakened" to get it to work. I'm not sure, but the Ford sensors may ship in a deep-sleep mode to save the battery until the sensor is installed and run at 20 mph, which will wake up the sensor.


I have done my current sensors without driving the truck first, but a NEW sensor may have to "wake up" before it will work. I know the sensors used in my Chevy vehicles goes into a sleep mode after the vehicle sits parked for more than 15 minutes, and they wake up when driven faster that 20 mph. If I want to check a sensor that is not mounted in a wheel, and I want to check it in the drive mode, I can put it in a plastic bag and rapidly sling it around for about 20 or 30 seconds to simulate it being in a wheel that is driving faster than 20 mph.


I would try that with your new sensor prior to trying to do the relearn procedure with it. Also, you don't need to pressurize it at all, unless you need to do the air pressure change method to trigger it. With your TPMS-19 tool you will be able to trigger the sensor without it being pressurized, as long as it has been woken up.

To my knowledge, all 2009-2014 F150s will use the same sensor. Throughout the years they have come with different part numbers - I think the newest one may have a slightly better battery for hopefully a longer life expectancy. They should last 7 to 10 years.


The part #s I have that are all essentially the same and should all work in a 2009-2014 truck:
Make sure any sensor you get has one of those Ford part #s, and I believe the most current/up to date one being the DE8T-1A180-AA or 93LZ-1A189-A sensor.





If the tire pressure sensor doesn't have one of those part #s, it either transmits on the wrong frequency, or speaks a language that the TPMS computer in the truck just will not be able to understand, and it won't work.


Good luck, and let us know what you find out!
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The first sensor I had installed I bought from Amazon and the description read as below:

PRESSURE SENSOR TPMS12 DE8T-1A180-AA, 9L3T-1A180-AE

The Sensor had DE8T-1A180-AA on it.

The part number is the same as one you listed but doesn't work. It has been installed for almost two weeks and I have tried to register it several times.

The bag I got from Tasca has 9L3Z-1A189-A on it but the part itself has 9L3T-1A180-CA in it.

 

OK, just tried spinning the sensor in a bag and it still doesn't work. My wife has a 2012 fusion and according to Tasca has the same sensors. While In learning mode and after the front two tires of my truck I tried both tires on the drivers side of her fusion that was parked right next to my truck. Would not register either of them but quickly picked it up my driver side rear.

It will register the 3 wheels in any order I choose and without any issues but won't pick up either new sensor or either on my wife's fusion's sensors.

I am at a total loss here. Is the truck only looking for previously registered sensors and won't look for a new one?

 

Probably not what you want to hear, IMO these sensors are a waste of time and money.
In my 07 I just blacked out the Idiot Light on the instrument panel with a marker after putting new wheels/tires on it.
Like most, I have been driving for years and never needed them nor do I miss them...just check the pressure with a gage like I always have and no problems....

 

You need to have your sensors trained....than they will work. Spinning them in a bag doesn't do anything.....

 

If by "trained" you're talking about performing a relearn procedure in order to log the tire pressure sensor ID #s into the TPMS computer memory, that's exactly what he has been doing with both the air pressure change method to trigger the sensors, and also by using his TPMS-19 tool that transmits the VLF triggering signal - neither of which has worked.


Below is the procedure he's been trying using his TPMS tool:




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If he is following the video, that only works to relearn after rotations! For a new sensor sensor u must use the key on and off best I can remember! Can't remember the exact steps!

 

Quote:
Originally Posted by 14silverfx4
If he is following the video, that only works to relearn after rotations! For a new sensor sensor u must use the key on and off best I can remember! Can't remember the exact steps!


You are absolutely correct!! Thanks for pointing that out!!


I just made a video that shows the difference in the two learn modes. I'll post it up after I get it uploaded.


The "emergency flasher" method seems to only work with the 4 sensors that are currently logged into the TPMS memory.


If you install a new sensor or switch to a different set of wheels (i.e., any or all of the sensors are not currently logged into the TPMS), then you will need to do the "ignition on-off/brake" method.
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I've saw it several times, I manage a shop and my techs will try and train new sensors by the hazard switch, and it will not work. I've got a 14 and it wouldn't work on it.