TPMS sensor fault woes

Lowrider1976

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Got my AR 924 mounted up with some nice pirelli pzero pz4 tires last night. We used Autel TPMS sensors and all went very smoothly, until we couldn't get the scan tool to program them to the vehicle. Tried a different Autel tool today with the exact same results. It will not decode the VIN and I believe that is what is leading to this issue. Without the VIN none of the manual options are for a SHO, it claims to write and reprogram but never seems to go into "relearn" in the vehicle itself (I don't get the normal horn honk to begin). When I start it I get TPMS sensor fault with flashing interior lights. Super annoying. The car is a 2010 model that would be banded style originally. So everything seems right while in progress, but end result not communicating to the BCM.

Please help! Any thoughts or suggestions welcome.
 

Lowrider1976

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My local ford dealership was not useful in resolving this either. Tried to claim it was likely due to the tune. But the bcm had nothing to do with the tuning of the vehicle lol. Does no one really have experience with issues here?
 

Ta2dResqr

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Can you tune to stock, program TPMS and then put the tune back on? I know ForScan has trouble talking to tuned cars and requires you to manually enter the Strategy Code before you can change anything because it cannot detect the Factory Strategy Code while the car is tuned.
 

Lowrider1976

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Can you tune to stock, program TPMS and then put the tune back on? I know ForScan has trouble talking to tuned cars and requires you to manually enter the Strategy Code before you can change anything because it cannot detect the Factory Strategy Code while the car is tuned.
Possibly? The dealership in my town basically didn't want to bother trying that. I'm thinking that might be my next best thing to try too.
 

Lowrider1976

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Ok just tried reverting to stock and the Autel tool still won't decode my vin. So access to tpms service isn't available in their scan tool device. Showing a DTC referring to autolamp ground? And then faults for the 4 tpms but that is it. It's very strange stuff...
 

Ta2dResqr

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You can try this:

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

I believe ForScan may also have an option but, I would need to look to confirm that.
 

Lowrider1976

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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
After doing this above process the horn does not honk and it does not enter relearn.
I'm not sure what your supposed to do to resolve the issue at that point. Ford tech talking with another tech suggested pulling the pcm to get the strategy code if I'm not mistaken. Never really included me in that discussion... so not sure how that is used to move forward in resolving the issue. I have the strategy code in my email so I could have easily provided it. Is that the work around presumably?
 

SHOthyme

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You can try this:

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

I believe ForScan may also have an option but, I would need to look to confirm that.

Geez, that's more complicated than the Contra cheat code!
 

Texas Marauder

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I use this tool for my TPMS sensors:
(Tire Pressure Monitor Activation Tool)

You don't say if you still have access to the original sensors. If so, you can read the ID from them and program the ID to the new sensors. Also be sure that the sensors are programmed to the correct frequency, 315 not 433

This is the procedure from the Ford service manual




SECTION 204-04: Wheels and Tires













2010 Taurus Workshop Manual​
GENERAL PROCEDURES
Procedure revision date: 07/07/2009​


Tire Pressure Monitoring System (TPMS) Sensor Training — Intelligent Access (IA)​


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 Smart Junction Box (SJB). For additional information, refer to Tire Pressure Monitoring System (TPMS) Sensor Activation in this section.

NOTE: The tire pressure sensor 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, attempt to activate the same sensor with the Tire Pressure Monitor Activation Tool. If the sensor still does not respond, move the vehicle to rotate the wheels at least one-fourth turn and attempt to activate the same sensor again.

NOTE: The SJB has a 2-minute time limit between sensor responses. If the SJB 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, Intelligent Access (IA) with Push Button Start in Section 419-01B to review the procedures for achieving the various ignition states (ignition in accessory, ignition on, ignition start, ignition off) on vehicles with this feature.


  1. With the ignition OFF, press and release the brake pedal.

  1. Using the start/stop switch, position the ignition from OFF to RUN 3 times, ending in the RUN position.

  1. Press and release the brake pedal.

  1. Position the ignition to OFF position.

  1. Using the start/stop switch, position the ignition from OFF to RUN 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 180 degrees from the valve stem.
    Place the Tire Pressure Monitor Activation Tool on the LF tire (banded sensor) sidewall opposite (180 degrees) from the valve stem or (stem mounted sensor) sidewall next to 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 SJB .
    video.gif
    An animated version of this procedure is available on-line.
  1. Within 2 minutes of the horn sounding, place the Tire Pressure Monitor Activation Tool on the RF tire (banded sensor) sidewall opposite (180 degrees) from the valve stem or (stem mounted sensor) sidewall next to 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 SJB 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 SJB and document them on the applicable warranty claim.

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