Chrysler uses a SchraderElectronics or VDO systemon just about every late-

model vehicle. Chrysler never useda band sensor in any of its plat-forms. On some 2004 and 2005 mod-els, Chrysler may have used twodifferent TPMS systems on a vehicleplatform depending on if the vehi-cle was equipped with AWD or if thesystem was optional or standard.On early TPMS equipped models,

the static relearn process requires arelearn procedure to be initiated onthe vehicle’s information center dis-play followed by activating eachTPMS in turns to enable each of theTPMS sensors’ unique ID numbersto be loaded into the WirelessControl Module.

The TPMS tool should be held onthe tire adjacent to the valve stemand not directly over the TPMSwhen activating the sensor. Eachtime a code has been successfullyloaded, the horn acknowledges.The best way to reprogram the

Chrysler systems is with a scan toolor TPMS specific tool. Not only is itfaster, but having the ability to con-firm that the system has been resetcan save your shop comebacks. Also,using a scan tool or TPMS tool candiagnose faulty sensors and weakbatteries.The technician should always

refer to manufacturer’s specifica-tions for proper torque require-

ments when replac-ing nuts and valvecores; use new grom-mets, nuts, plastic ornickel-plated valvecaps and electro-less,

nickel-plated valve cores when per-forming any tire service; never use abrass valve core or unplated brasscap with an aluminum TPMS sen-sor stem. Contact between dissimi-lar metals can cause galvaniccorrosion, which can lead to loss ofair pressure.

2004-08 Chrysler Pacifica AWD2005-2011 300/300C2007-2009 Aspen2008-2011 PT Cruiser2009-2011 Sebring Sedan2005-2007 Town & Country2008-2011 Avenger2007-2010 Caliber2009-2010 Challenger SRT82006-2011 Charger2007-2011 Ram/Durango Trucks2007-2010 Nitro2007-2009 Sprinter

1. Inflate all tires to cor-rect pressure specificationas indicated on the VehicleTire Placard.

2. Park vehicle with the ig-nition switch set to the offposition for 20 minutes.

3. Drive the vehicle fasterthan 15 mph for at least 20minutes. The sensor loca-tions and ID numbers will beautomatically registeredduring drive cycle.

During this reset period, the in-strument panel TPMS indicatormay be illuminated. This is normalunless the indicator is flashing. Itwill turn off after a period of drivingat a sufficient speed, usually 1-20minutes at speeds more than 15-20

mph. If your initial drive is tooshort, the process will reinitiate thenext time the vehicle is driven.ALTERNATE METHOD:

Perform the TPMS sensor ini-tialization procedure using ascan tool. This will turn off theinstrument panel TPMS light.

2002 - 2004 300M (Option)2004 - 2008 Crossfire (incl.SRT6)2002 - 2003 Caravan 4X4 1. Inflate all tires to correct pres-

sure specification as indicated onthe Vehicle Tire Placard. Calculatefor air temperature.2. Press MENU key on the elec-

tronic vehicle information centeruntil RETRAIN TIRE SENSORS-NO is displayed.3. Press STEP button until YES

appears.4. Press MENU button to select

YES, causing display to readTRAIN LEFT FRONT TIRE.5. Place activation tool on the left

front tire valve stem. The toolshould remain in place for approxi-mately five seconds until the hornsounds.6. Repeat procedure for the re-

maining sensors in this sequence:right front, right rear, left front andspare.7. After all four or five sensors

have been reset, the electronic vehi-cle information center will display:TRAINING COMPLETE. If TRAIN-ING ABORTED appears on the elec-tronic vehicle information center atany time, move the vehicle ahead atleast one foot and restart procedure.8. Press either MENU, RESET,

STEP or C/T on the electronic driv-er information center to exit thereset procedure.Learn mode will cancel if the sys-

tem is not re-trained within the al-lotted time and the procedure willhave to be repeated for all tires.

TPMS REFERENCE

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GM TPMSs y s t em s o nBuick, Pontiac,C h e v y(Chevrolet ) ,GMC Cadillacand Hummer

models are some of the easiest toservice if you have the right tools andknowledge. Starting in 2007, mostvehicles use a Schrader- or VDO-manufactured system that sharesthe same relearn procedures and be-haviors. There are exceptions, likethe Pontiac Vibe.• A GM TPMS sensor has pres-

sure, temperature and accelerationsensors. The unit also has a radiotransmitter, receiver and battery.Sensors have a 10 year /150,000 mile(240,000 km) battery life.

• The antenna and receiver are thesame ones that are used for the key-less-entry system. The antenna is typ-ically sandwiched between the layersof glass in the front or rear glass. But,

some vehicles have dedicated anten-na mounted in various places.

• The keyless entry module com-municates with the TPMS sensorsand relays the information with theBody Control Module (BCM) on theCAN BUS. If the keyless entry mod-ule is replaced, the sensors must berelearned, same with the key fobs.

• When the TPMS tool is used inactivate mode, it produces a low fre-quency transmission that activatesthe sensor. The sensor responds to alow frequency activation by trans-mitting in learn mode.

• It is best to perform the TPMSrelearn procedure away from theshop in the parking lot. This decreas-es the chance of other radio signalsinterfering with the relearn process.

• If you can not get a sensor toinitialize, try pushing the vehicle for-ward a foot or two.The signals can beblocked by components like rotors,calipers and knuckles. By reposition-ing the sensor, it may unblock thesensor. This is far more common onthe front wheels.

TPMS Sensor Matching1. Set the parking brake.

2. Turn the ignition switch toON/RUN with the engine off.

3. Press and hold the keyless Entryfob transmitter’s LOCK and UN-LOCK buttons, at the same time, forabout five seconds to start the TPMSlearn mode. The horn sounds twiceindicating the TPMS receiver isready and in learn mode.

4. Starting with the left front tire, ac-tivate the sensor by holding theTPMS tool aimed upward againstthe tire sidewall close to the wheelrim at the valve stem location. Pressand release the activate button andwait for a horn chirp.

5. Once the horn chirp has sounded,the sensor information is learned

and the turn signal in the next loca-tion to be learned will illuminate. Onmost models, the driver-side frontturn signal also comes on to indicatethat corner’s sensor is ready to belearned. Once the learn mode hasbeen enabled, each of the sensorsunique identification codes can belearned.

6. When a sensor ID has beenlearned, the module sends a serialdata message to the BCM to sound ahorn chirp. This verifies the sensorhas transmitted its ID and has re-ceived and learned it. The modulemust learn the sensor IDs in theproper sequence to determine sen-sor’s location. The first learned ID isassigned to the left front location, thesecond to right front, the third toright rear and the fourth to left rear.On most models, the turn signals willindividually illuminate indicatingwhich location is to be learned in theproper sequence.

Trouble ShootingThe learn mode will cancel if the

ignition is cycled to OFF or if morethan two minutes has elapsed forany sensor that has not beenlearned. If the learn mode is can-celled before the first sensor islearned, the original sensor IDs willbe maintained. If the learn mode iscanceled after the first sensor islearned, the following will occur:

• All stored sensor IDs will be in-validated in the RCDLR memory.

If equipped, the DIC will displaydashes instead of tire pressures. Ifthe learn mode is canceled after thefirst sensor is learned, the followingwill occur:

• All stored sensor IDs will be in-validated in the module memory.• If equipped, the DIC will display

dashes instead of tire pressures.• DTC C0775 will be set. These

conditions will now require the learnprocedure to be repeated for the sys-tem to function properly.

WWW.BRAKEANDFRONTEND.COMCircle #42 for Reader Service

From 2006-2009, Ford used band-ed sensors that are mounted in thecenter of the rim, 180º from the valvestem. In 2010, Ford reverted to thevalve stem mounted sensors.

2002-2005 Direct Systems (2006Expedition)

Ford systems use the unique IDnumbers of the sensors that have tobe registered along with their posi-tion on the car with the tire pressuremonitor ECU. This process requires the activa-

tion of the TPMS sensor using a lowfrequency radio signal tool or magnetto excite the sensor so UHF data istransmitted. The transmitted data in-cludes the TPMS ID, the pressure andtemperature. If a TPM sensor or its position on

the car is changed without reregis-tering the IDs, the TPMS warninglight will turn on and stay on untilthe IDs are reregistered.

Sensor TrainingNOTE: The tire pressure sensor

training procedure must be done inan area without radio frequency (RF)noise. RF noise is generated by elec-trical motor and appliance operation,cellular telephones and remote trans-mitters.1. Turn the ignition switch to the

OFF position. 2. Turn the ignition switch to the

RUN position three times, ending inthe RUN position. Do not wait morethan two minutes between each keycycle.3. Press and hold the brake pedal. 4. Turn the ignition switch to the

OFF position.5. Turn the ignition switch to the

RUN position three times, ending inthe RUN position. Do not wait morethan two minutes between each keycycle.6. When the message center dis-

plays “TRAIN LEFT FRONT TIRE,”place the magnet on the valve stem

of the LF tire pressure sensor. Thehorn will sound briefly to indicatethat the tire pressure sensor has beenrecognized by the TPMS module.7. Within two minutes after the

horn sounds, place the magnet on thevalve stem of the RF tire pressuresensor.NOTE: If the TPMS module does

not recognize any one of the five tirepressure sensors during the tiretraining procedure, the horn willsound twice and the message centerwil l display “TIRE TRAININGMODE INCOMPLETE” and the pro-cedure must be repeated.8. Repeat Step 7 for the RR, LR

and spare tire.When the tire training procedure

is complete, the horn will sound twiceand the message center will display“TIRE TRAINING MODE COM-PLETE.”

2006-2011 (2005 Escape, Edge andMariner)

TPMS was standard for the 2007model year. 2007-2009 models havebanded sensors, while most 2010-2011 models have sensors mountedbehind the valve stem.If the vehicle has been stationary

for more than 30 minutes, the sensorswill go into a “sleep mode” to conservebattery power. It will be necessary towake them up so they will transmitthe latest tire pressure information tothe Smart Junction Box (SJB).

Activation1. Turn the ignition switch to the

ON position.2. Position the TPMS tool against

the LF tire sidewall, 180 degrees fromthe tire valve stem. The TPMS toolmust remain in place 180 degreesfrom the valve stem for 2007-2009models with banded sensors and di-rectly below the valve stem on thesidewall for 2010-2011 models withthe valve stem mounted TPMS sen-sors.3. NOTE: The TPMS tool will pro-

vide feedback in the form of a flashinggreen light and a beep sound for eachsuccessful response from a tire pres-sure sensor. Press the test button onthe TPMS tool to activate the sensor.

Activate the sensor at least two times.4. Repeat Steps 2 and 3 for the re-

maining tires.

Relearn1. Turn the ignition switch to the

OFF position. Then, press and releasethe brake pedal.2. Cycle the ignition switch from

the OFF position to the RUN positionthree times, ending in the RUN posi-tion.3. Press and release the brake

pedal.4. Turn the ignition switch to the

OFF position.5. Turn the ignition switch from

the OFF to the RUN position threetimes, ending in the RUN position.The horn will sound once and the

indicator will flash if the trainingmode has been entered successfully.If equipped, the message center willdisplay “TRAIN LF TIRE.”6. It may take up to six seconds to

activate a tire pressure sensor. Press and release the test button

on the TPMS tool. The horn willsound briefly to indicate that the tirepressure sensor has been recognizedby the vehicle. 7.Within two minutes of the horn

sounding, place the TPMS tool on thecorrect position for the sensor and re-lease the test button to train the rightfront tire pressure sensor.8. Do not wait more than two min-

utes between training each sensor orthe Smart Junction Box (SJB) willtime out and the entire proceduremust be repeated. Repeat Step 7 forthe right rear and then left rear.The procedure is completed after

the last tire has been trained. Whenthe training procedure is complete,the message center (if equipped) willdisplay “TIRE TRAINING COM-PLETE.”For vehicles not equipped with a

message center, successful completionof the training procedure will be ver-ified by turning the ignition switch tothe OFF position without the hornsounding. If the horn sounds twicewhen the switch is turned to the OFFposition, the training procedure wasnot successful. �

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