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Discussion Starter #1
Hello just had car repaired $700 bill, wireless control module, sensor and key fobs replaced. 2 days later "Check TPM system" came on, and left tire shows 39 PSI, all others no reading. Now TPM shows no reading on any tire and solid triangle on dash??? Any help would be great.
 

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It looks as if your repair might have been connected with an immobiliser problem? Such problems can often be the result of a faulty TPMS transponder, usually one of the front ones. Weird but true. It is possible that the wrong components have been changed.
 

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Hello just had car repaired $700 bill, wireless control module, sensor and key fobs replaced. 2 days later "Check TPM system" came on, and left tire shows 39 PSI, all others no reading. Now TPM shows no reading on any tire and solid triangle on dash??? Any help would be great.
badasblkhemi300c,

I'm sorry to learn of the most recent issue. Have you had a chance to manually check the tire pressure in your tires?

The Check TPMS Warning system is intended to advise you if the tire pressure is dropping. If your tires are not losing air, a fault may exist with the TPM sensors. This can be caused by electronic interference that disrupts the radio signal. Some common causes are electronic devices or driving by facilities that use the same frequency as the TPM sensor.

Are there any additional codes being set?
 

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The TPM system in the 2008 Chrysler 300 operates on a 433 MHz radio frequency. The 433 MHz sensors can be easily identified by the part number.

Although additional sensors operating at 433 MHz sensors are available and are used in other applications, they are not interchangeable. Always make sure the correct sensor is being used and be sure to replace the sensor with the correct part number.

Once mounted inside a tire and wheel assembly you are not able to visually see the difference between this sensor and other 315 MHz and 433 MHz sensors. At that point, a TPM/RKE Analyzer 9936, with the Scan Tool may need to be used to identify the sensor frequency or the tire can be dismounted allowing visual inspection of the sensor body and part number.

The TPM sensors are designed for original style factory wheels. It is not recommended to install a tire pressure sensor in an aftermarket wheel (This could cause sealing and system performance issues). Do not attempt to install a tire pressure sensor in an aftermarket wheel. If aftermarket wheels are installed and do not contain tire pressure sensors, the system will not function properly and the driver will be continuously notified of a system malfunction.
 

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If you have aftermarket electronics installed in your vehicle, they can generate RFI/EMI that interferes with the TPMS signals and/or the wireless remote signals. If you have any aftermarket devices plugged in or connected, try unhooking them. Cell phone chargers, USB power adapters, Trinity or other OBDII connected tuners or monitors, mp3 players, cell phones, and HIDs are among some of the devices that can cause problems. As an example, I have a cell phone charger that will cause TPMS errors if it is plugged into one power outlet and does not cause a problem if plugged into the other outlet.
 

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Discussion Starter #6
Update TPMS

badasblkhemi300c,

I'm sorry to learn of the most recent issue. Have you had a chance to manually check the tire pressure in your tires?

The Check TPMS Warning system is intended to advise you if the tire pressure is dropping. If your tires are not losing air, a fault may exist with the TPM sensors. This can be caused by electronic interference that disrupts the radio signal. Some common causes are electronic devices or driving by facilities that use the same frequency as the TPM sensor.

Are there any additional codes being set?
No other codes. The tech reset the code but said there is not enough voltage from the sensors to communicate. The warning light on the dash is gone for now but I have no indication what my tire pressures are. I did check the pressures and I have 34 all the way around. He did say the car might relearn the pressures if enough voltage can be read.

I had the TPMS voltage output checked on each tire and found three of the ,have no voltage output. I was told that if car is close to 100k miles and your in need of tires, replace the TPMS in all the tires to avoid breaking the tires off the rim and having to replace the sensors as the batteries are not seviceable, at a later time.Sooner tahn you would think. I have 108k miles.
I have factory 18 wheels, turns out the TPMS in my all 4 wheels have very low output and all 4 need replacement. Anyone else have to replace all 4 TPMS, one for each tire. I was told they last 100k miles or 5-7 years????
 

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I'm not surprised at having to replace the TPMS units due to age only. I'm not sure they were designed to last that long in any event.

My youngest daughter has a 2007 Charger with TPMS and two of the sensors had failed with a bad battery and the third expired while a punctured tire was being removed from the rim. It was old, brittle and had almost cracked through at the base of the air tube right behind the wheel flange.
 

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He did say the car might relearn the pressures if enough voltage can be read.

I had the TPMS voltage output checked on each tire and found three of the ,have no voltage output. I was told that if car is close to 100k miles and your in need of tires, replace the TPMS in all the tires to avoid breaking the tires off the rim and having to replace the sensors as the batteries are not seviceable, at a later time.Sooner tahn you would think. I have 108k miles.
I have factory 18 wheels, turns out the TPMS in my all 4 wheels have very low output and all 4 need replacement. Anyone else have to replace all 4 TPMS, one for each tire. I was told they last 100k miles or 5-7 years????
On vehicles equipped with Tire Pressure Monitoring (TPM), one tire pressure sensor is mounted to each wheel in place of the traditional tire valve stem. Each sensor has an internal battery that lasts up to 10 years. The battery is not serviceable. At the time of battery failure, the sensor must be replaced.

The serviceable components of the tire pressure sensor are:

Sensor-To-Wheel Seal and Metal Washer
Valve Stem Cap
Valve Stem Core
Valve Stem Nut (with pressed-in washer)

Any time a sensor is installed on a wheel, a new Sensor-To-Wheel Seal , Metal Washer and Valve Stem Nut must be installed to ensure air tight sealing. A service kit is available.

The valve stem caps and cores are specifically designed for the tire pressure monitoring sensors. Although similar to standard valve stem caps and cores, they are different. The valve stem cap has a special seal inside to keep moisture and corrosion out. The valve stem core has a special nickel coating to protect from corrosion

The TPM sensor can be in one of the following operating modes:

OFF MODE – A new TPM sensor will be in this mode. In this mode the sensor does not transmit periodically on its own. By forcing a transmission from the sensor with the TPM-RKE Analyzer, it will change to the STATIONARY MODE. The sensor will also automatically change from OFF mode to the STATIONARY MODE once it experiences a great increase in pressure (i.e. installation into a wheel/tire assembly and then inflated).

WAL MODE – This is the operating mode the sensor assumes when the vehicle is driven over 15mph (24km/h), but only after the vehicle was previously parked for a duration of 18 minutes or greater. In WAL MODE the sensors transmit every 33 seconds and these transmissions contain left/right information that allows the TPM Module to determine sensor location on the vehicle. WAL MODE lasts for the first 10 minutes of consecutive driving, then NORMAL DRIVE mode ensues.

FACTORY MODE– This is a special case of WAL MODE. If a TPM sensor has just been taken out of OFF MODE, then for the first 3 minutes of the WAL period (10 minutes) the sensors transmit at an accelerated rate of every 10 seconds. After the first 20 drives, then the sensors never again transmit out of FACTORY MODE.

NORMAL MODE – This is the operating mode the sensor assumes after the first 10 minutes of a drive. In NORMAL MODE the sensors transmit every 66 seconds and cease transmitting left/right information.

SERVICE MODE– Once a vehicle stops, the sensors go into SERVICE MODE. After 18 minutes of no driving then the sensors go into the STATIONARY MODE. If the vehicle was stopped for less than 18 minutes and driving resumes, then the sensors go back to the NORMAL MODE.

STATIONARY MODE – When a vehicle has been stopped for more then 18 minutes, then the sensor is forced into STATIONARY MODE. In STATIONARY MODE the sensor never transmits any pressure information. The sensor leaves STATIONARY MODE and enters WAL MODE when the vehicle is driven above 15mph (24km/h).

Each sensor’s (transmitter) broadcast is uniquely coded so that the TPM module can monitor the state of each of the sensors on the four rotating road wheels. The TPM module can automatically learn and store the sensor’s ID while driving “within 20 minutes continuously above 15 mph (24 km/h)” after a sensor has been replaced. The vehicle must be stationary for more then 20 minutes in order to initiate the learning sequence. The TPM module can also learn the sensor's ID using a the Scan Tool.
 

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Hi Have 300c 2007 diesel european version. Did replace all tpm sensores and did follow relearn procedure

Front right is Ok
Back Right s Ok
and somehow front left preassure is reading back left and "check tpm system "
Back left preasure is reading front left
I drove more than 300miles already everytime more than 40mph for more than 30min so its not a case. Is it possible that one of transponders is faulty?? I know there are 3in d car. I had an alternator changed while ago could mechanic disconnect it? And main question.. how tpm transponder is connected with modul- wireless or have lead ??and where the lead is going if so just want to check connection regards.
 
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