TPMS Codes - Fault

[MrSkunks]

@MrSkunks

They probably didn't change the TPMS sensors. I'd bring it back!!!!
Gen 2s with class C KO2s have a much lower tire psi. then a Gen 1

I would check that you have all Class E rated tires on her.
Even if you have all Class C tires you would still need 40 psi. or above.
I don't know if Forscan can actually adjust the software in the truck for this safety feature.
SCT Tuner device with Tune is the way to go.

In any case, if you have the right TPMS in the tire, here are a few things to note.

In order for the low tire symbol to turn off (reset) on a Gen 1 you need 40 to 41 psi. minimum in each tire.

Keep in mind the Gen 1 recommended tire pressure is 44 psi. (which IMHO is stupid high)
And then drive around the block, mine sometimes goes off just starting it.

Keep in mind if and when you air down you will need a Tuner to set the low tire pressure.
If you don't have the SCT Tuner device to adjust the warning threshold the light will come on at around 36-38 psi.
If you get it working, I have mine set to 30 psi.
Also I noticed once or twice if I let out 5 or more psi. in one drive cycle the light will pop up as well.
So I've been letting out 2 psi. per drive cycle till I get 38 front and 36 rear.
On KO2 class E

Here you go:
Note this is for when you don't have the tire learning tool.

https://www.tpmsdirect.com/Schrader_20315_TPMS_Relearn_a/822.htm

Ok so I just went outside and checked, it’s Class C load. What should my PSI be set to? Currently at 44psi.

I’ve tried every method to relearn, and none of the tires work. What’s weird is that when I test drove the car no light came up. Maybe I didn’t drive it fast enough or far enough. When I left the dealer, I was stuck in a lot of traffic until I got on the highway. Once I got up to speed, light went on. Not sure if this is another clue that it’s the Gen 2 sensors.

The dealer is quite far, so I would hate to drive all the way there just for them to say the TPSM system is broken and it’s not the sensors. I guess another option is to take the risk, order the sensors and have them installed locally. Does anyone have a link to the Gen 1 sensors?

Do you think turning off the TPMS system completely, which is an option in Foracan, would get rid of the light? If I even get them to work and the whole C class lower PSI situation would keep it from working, it might not even be worth the hassle.

 

[MTF]

Give the dealer a call see what they will do for you first, I mean they have to sell you a safe working truck!!!

On the Gen 2 tire pressure for the class C is 38 psi.
The link I posted sells them but you can get them anywhere.

Can't help you with the whole Forscan thing, I do not know anything about it.

 

[MrSkunks]

Give the dealer a call see what they will do for you first, I mean they have to sell you a safe working truck!!!

On the Gen 2 tire pressure for the class C is 38 psi.
The link I posted sells them but you can get them anywhere.

Can't help you with the whole Forscan thing, I do not know anything about it.

Thanks for the help. Just left my sales guy a voicemail. Will keep reaching out to them to get it fixed. Bit of drive but it’ll be worth it when that damn light stops blinking at me lol.

 

[FordTechOne]

Ok so I just went outside and checked, it’s Class C load. What should my PSI be set to? Currently at 44psi.

I’ve tried every method to relearn, and none of the tires work. What’s weird is that when I test drove the car no light came up. Maybe I didn’t drive it fast enough or far enough. When I left the dealer, I was stuck in a lot of traffic until I got on the highway. Once I got up to speed, light went on. Not sure if this is another clue that it’s the Gen 2 sensors.

The dealer is quite far, so I would hate to drive all the way there just for them to say the TPSM system is broken and it’s not the sensors. I guess another option is to take the risk, order the sensors and have them installed locally. Does anyone have a link to the Gen 1 sensors?

Do you think turning off the TPMS system completely, which is an option in Foracan, would get rid of the light? If I even get them to work and the whole C class lower PSI situation would keep it from working, it might not even be worth the hassle.

What method are you using to enter training mode and what tool did you purchase?

Here is the procedure from the Ford Workshop Manual if you haven't tried it yet:


NOTE: If the vehicle has been stationary for more than 30 minutes, the sensors will go into a "sleep mode" to conserve battery power. It will be necessary to wake them up so they will transmit the latest tire pressure information to the BCM . For additional information, refer to Tire Pressure Monitoring System (TPMS) Sensor Activation in this section.

NOTE: The Tire Pressure Monitoring System (TPMS) Training procedure must be done on a single vehicle, in an area without radio frequency noise and at least 1 m (3 ft) away from other vehicles equipped with a Tire Pressure Monitoring System (TPMS) .

Radio frequency noise is generated by electrical motors and appliance operation, cellular telephones, remote transmitters, power inverters and portable entertainment equipment.

NOTE: If a sensor does not respond to the Tire Pressure Monitor Activation Tool, move the vehicle to rotate the wheels at least one-fourth of a turn and attempt to activate the same sensor again. If the sensor still does not respond, attempt to activate the same sensor again using the customer activation tool (if available). If the sensor still fails to train, attempt to train the sensor with the vehicle doors open.

NOTE: The BCM has a 2-minute time limit between sensor responses. If the BCM does not recognize any 1 of the 4 tire pressure sensors during this time limit, the horn will sound twice and the message center (if equipped) will display TIRE NOT TRAINED REPEAT and the entire procedure must be repeated.

NOTE: For vehicles with different front and rear tire pressures (such as the E-Series and certain F-Series), the tire pressure sensors must be trained following a tire rotation. Failure to train the sensors will cause the TPMS indicator to illuminate. For vehicles with the same tire pressure for front and rear tires, tire rotation will not affect the system.

NOTE: Refer to Description and Operation, Push Button Start System Ignition Modules in Section 211-05 to review the procedures for achieving the various ignition states on vehicles with this feature.

1. NOTE:
   
   Click here to view an animated version of this procedure.
   
   Turn the ignition switch to the OFF position, then press and release the brake pedal.

1. Cycle the ignition switch from the OFF position to the RUN position 3 times, ending in the RUN position.

1. Press and release the brake pedal.

1. Turn the ignition switch to the OFF position.

1. Turn the ignition switch from the OFF position to the RUN position 3 times, ending in the RUN position.
   • The horn will sound once and the TPMS indicator will flash if the training mode has been entered successfully. If equipped, the message center will display TRAIN LF TIRE.

1. NOTE: It may take up to 6 seconds to activate a tire pressure sensor. During this time, the Tire Pressure Monitor Activation Tool must remain in place at the valve stem.
   
   Place the Tire Pressure Monitor Activation Tool on the LF tire sidewall at the valve stem. Press and release the test button on the Tire Pressure Monitor Activation Tool. The horn will sound briefly to indicate that the tire pressure sensor has been recognized by the BCM .

1. Within 2 minutes of the horn sounding, place the Tire Pressure Monitor Activation Tool on the RF tire sidewall at the valve stem and press and release the test button to train the RF tire pressure sensor.

1. NOTE: Do not wait more than 2 minutes between training each sensor or the BCM will time out and the entire procedure must be repeated.
   
   Repeat Step 7 for the RR and LR tires.
   The procedure is completed after the last tire has been trained. When the training procedure is complete, the message center (if equipped) will display TIRE TRAINING COMPLETE.
   For vehicles not equipped with a message center, successful completion of the training procedure will be verified by turning the ignition switch to the OFF position without the horn sounding. If the horn sounds twice when the switch is turned to the OFF position, the training procedure was not successful.

1. Using the scan tool, locate the updated TPMS sensor identifiers trained to the BCM and document them on the applicable warranty claim.

1. NOTE: This step is required to clear DTC C2780, cause the BCM to exit the manufacturing mode and to make sure there are no other concerns with a newly programmed BCM .
   
   If the sensors are being trained due to the installation of a new BCM , clear any DTCs and carry out the BCM On-Demand Self Test.

 

[MrSkunks]

What method are you using to enter training mode and what tool did you purchase?

I tried both that method and pressing the hazards 3 times quickly. Both entered training mode. Before this, I drove for 10 minutes to wake up the sensors and left my cell phone in the house.

See photo bellow for the tool I used. I tried all 4 tires, none of them would learn.

Dealer told me that whoever turned in the car wanted to keep the wheels that were on the car. The dealer took those off and replaced it with a set from a 2019. They don't have record of if they changed out the TPMS so it sounds like the Gen 2 sensors are in the wheels.

Someone else mentioned this would cause it not to learn. I could order some new sensors but they time I get them and install, I'm prob looking at $150. Since I'm not 100% sure this is the issue, I dont want to risk it right now. I'll just live with the light for now

If someone had a for sure way of knowing what sensors were in the car, it would save me that risk.

 

[FordTechOne]

I tried both that method and pressing the hazards 3 times quickly. Both entered training mode. Before this, I drove for 10 minutes to wake up the sensors and left my cell phone in the house.

See photo bellow for the tool I used. I tried all 4 tires, none of them would learn.

Dealer told me that whoever turned in the car wanted to keep the wheels that were on the car. The dealer took those off and replaced it with a set from a 2019. They don't have record of if they changed out the TPMS so it sounds like the Gen 2 sensors are in the wheels.

Someone else mentioned this would cause it not to learn. I could order some new sensors but they time I get them and install, I'm prob looking at $150. Since I'm not 100% sure this is the issue, I dont want to risk it right now. I'll just live with the light for now

If someone had a for sure way of knowing what sensors were in the car, it would save me that risk.

The tool you posted is the old E-Series tire rotation tool. It was never designed to train new TPMS sensors to a vehicle; only to re-train existing sensors to a new location.

Here are the tools that are specified in the Workshop Manual:

OTC 204-363
ATEQ 204-D081A

Some other modern TPMS trainers will work, but the E-Series tire rotation tool is just that...not a training tool.

 

[MTF]

@FordTechOne

So you think Gen 2 sensors will work on a gen 1

Even if the tire pressure is 38 for the Gen 2 and 44 for the Gen 1

Doing the deflate procedure you do not need the activation tool but what psi. should he start with?

https://www.tpmsdirect.com/Schrader_20315_TPMS_Relearn_a/822.htm
Schrader 20315 Rubber Valve Snap-In TPMS Relearn Procedures:
Ford, Lincoln, Mazda, Mercury

When new sensors are installed, they must be registered by deflation.

There are two different relearn procedures for vehicles without push-button start.
The third set of directions if for vehicles with push-button start.

First Procedure:
1) Drive the vehicle for at least 2 minutes above 20mph.
2) Park near an air station and keep the ignition key in the OFF position
3) Turn the ignition to the ON position, but with the engine off.
4) Turn the hazard flashers on and off three times within ten seconds, and the horn should sound. The TPMS light should be flashing letting you know that the vehicle is now in TPMS relearn mode.
5) Starting with the driver's side front tire, activate the TPM sensor by deflating the tire for 10 seconds., Wait for the horn honk to confirm that the sensor has been registered to the vehicle. It may take up to 20 seconds for the horn to honk.
6) Continue on to the passenger's side front tire, and repeat the procedure in Step 5.
7) Next, move on to the passenger's side rear tire, and repeat the procedure in Step 5.
8) Finishing with the driver's side rear tire, repeat the procedure in Step 5. Once the horn honks, turn the ignition switch to OFF to complete the TPMS relearn procedure.
9) Make sure all tires, including the spare (if equipped) are inflated to the vehicle's recommended inflation pressures.

Second Procedure:
1) Make sure all tires are inflated to the vehicle's recommended inflation pressures (found in the owner's manual on the door placard).
2) Turn the ignition switch to OFF then press and release the brake pedal.
3) Turn the ignition switch from OFF to RUN (engine OFF) 3 times, ending in the RUN position. Do this within 10 seconds.
4) Press and release the brake pedal
5) Turn the ignition switch back to OFF
6) Turn the ignition switch from OFF to RUN (engine OFF) 3 times, ending in the RUN position. Do this within 10 seconds
7) The horn should sound letting you know the vehicle has entered into TPMS relearn mode
8) Starting with the driver's side front tire, activate the TPM sensor by deflating the tire for 10 seconds. Wait for the horn honk to confirm that the sensor has been registered to the vehicle. It may take up to 20 seconds for the horn to honk
9) Once the horn sounds, move on to the passenger side front tire and repeat the process. Each tire should only take 30 seconds or less.
10) After the passenger side front tire has been learned, continue on to the passenger side rear tire and finishing with the driver's side rear tire
11) You may now turn the ignition to OFF. If the horn does not sound, the sensors were learned successfully. If the horn sounds twice, then the process must be repeated because there was a malfunction
12) Make sure all tires, including the spare (if equipped), are inflated to the vehicle's recommended inflation pressures

If your vehicle has push-button ignition:
1) Make sure all tires are inflated to the vehicle's recommended inflation pressures (found in the owner's manual on the door placard)
2) Make sure the ignition button is OFF then press and release the brake pedal
3) Hold the ignition button down for 2 seconds, release it, and then tap the button once. The vehicle should be OFF. Hold the ignition button down for another two seconds, release it, and then tap the button once
4) Hold the ignition button down for two seconds again. The vehicle should be in RUN mode, engine off
5) Press and release the brake pedal
6) Tap the ignition button once so the vehicle is OFF
7) Hold the ignition button down for 2 seconds, release it, and then tap the button once. The vehicle should be OFF. Hold the ignition button down for another two seconds, release it, and then tap the button once
8) Hold the ignition button down for two seconds again. The vehicle should be in RUN mode, engine off
9) The horn should sound letting you know the vehicle has entered into TPMS relearn mode
10) Starting with the driver;s side front tire, activate the TPM sensor by deflating the tire for 10 seconds. Wait for the horn honk to confirm that the sensor has been registered to the vehicle. It may take up to 20 seconds for the horn to honk
11) Once the horn sounds, move on to the passenger side front tire and repeat the process. Each tire should only take 30 seconds or less.
12) After the passenger side front tire has been learned, continue on to the passenger side rear tire and finishing with the driver's side rear tire
13) You may now turn the ignition to OFF. If the horn does not sound, the sensors were learned successfully. If the horn sounds twice, then the process must be repeated because there was a malfunction
14) Make sure all tires, including the spare (if equipped) are inflated to the vehicle's recommended inflation pressures

 

[pat247]

FYI: I have been running the C rated KO2's on my Gen 1 Raptor for the past two years. The first set (4) was put on by my local ford dealer and I ran them at 44 psi. They were toast at 50k miles where as the original KO's were good to 65K. I'm currently running a second set (5) of the C rated KO2's at 38 psi and incorporating the spare in the rotation. When the spare is on the ground (being used) the TPMS light is lit as that wheel does not have a sensor (yet). The spare has traveled to all four corners of the truck and is now in the spare carrier and guess what "NO TPMS Light", no tool and no relearn procedure.

I bought a new sensor for the spare on eBay and will install before the spare goes on the ground again. I'm hoping the truck just recognizes the new sensor but we will wait and see what happens.

 

[MTF]

Yes but you know you have the Gen 1 sensors in your tires.
Were trying to determine if Gen 2 sensors will work on a Gen 1, since the tires and rims came off a Gen 2

I did a quick search and the Gen 1 TPMS has a different part # then the Gen 2
So either the Gen 2 sensors won't talk to the BCM or you have to set the tires to 38 psi.
and then air down for the relearn process, it may fool the BCM.

 

[pat247]

Yes but you know you have the Gen 1 sensors in your tires.
Were trying to determine if Gen 2 sensors will work on a Gen 1, since the tires and rims came off a Gen 2

I did a quick search and the Gen 1 TPMS has a different part # then the Gen 2
So either the Gen 2 sensors won't talk to the BCM or you have to set the tires to 38 psi.
and then air down for the relearn process, it may fool the BCM.

My second set of KO2's were new truck takeoffs from a 2018 Raptor, wheels and tires minus sensors. When I researched the sensors I noticed that the Gen 1 sensors would not mount to the Gen 2 valve stems so I went a different rout and put the tires on my Gen 1 rims.

The Gen 1 has a very basic TPMS system meaning when the light comes on you have to physically check each wheel with a tire gauge to find the one that has low psi.

The Gen 2 has a more robust TPMS system that is capable of displaying individual tire pressures and will display what tire needs attention when activated.

Therefore IMHO the Gen 1 BCM is not compatible with the Gen 2 sensors. That's my SWAG and I'm sticking to it.