‘Train’ replaced sensors on F-150 pickups
SUBJECT VEHICLE: 2009-13 Ford F-150 pickup
RELEARN PROCEDURE? Yes, see reset procedures.
SPECIAL TOOLS NEEDED? Yes, a TPMS Activation Tool (P/N 204-363).
The tire pressure monitoring system (TPMS) on 2009-13 Ford F-150 pickups monitors the air pressure in the four road tires with wheel-mounted tire pressure sensors. The sensors transmit radio frequency signals to the Smart Junction Box (SJB) approximately every 60 seconds when the vehicle speed exceeds 20 mph (32 km/h). If the vehicle is stationary for more than 30 minutes, the sensor will enter into a “sleep mode” and stop transmitting.
NOTE: If the tire pressure sensor is replaced, it will need to be trained. If the vehicle has different front and rear tire pressures, the tire pressure has to be adjusted and the TPMS sensors have to be trained after tire rotation. See reset procedures. If the vehicle has the same tire pressure on the front and rear tires, the tire pressure monitoring system is not affected by wheel and tire rotation.
Each tire pressure sensor transmission is compared against a low-pressure limit (pressure listed on vehicle certification label minus 25%, which will be about 6 psi to 9 psi). If it is determined that the tire pressure has fallen below this limit, the SJB sends a message to the instrument cluster, which then illuminates the low pressure warning indicator and displays the appropriate message(s) in the message center (if equipped).
All tire pressure sensors are battery-operated. The sensors are attached to the portion of the valve stem located inside the wheel with a T10 torx screw. Under the following conditions, the TPMS may not function properly:
• Low tire pressure;
• Tire pressure sensor is missing or damaged;
• Spare tire is installed as a road wheel;
• Incorrect tire pressure sensor is installed;
• Tire pressure sensor installed incorrectly;
• Non-OEM wheels installed (aftermarket rims);
• Non-OEM equipped run-flat tires installed; and
• Other non-OEM modifications (roll cages, service barriers, part racks, ladder racks, etc.)
Pressure monitor warning indicators
NOTE: As ambient temperature decreases by 10 degrees Fahrenheit (6 degrees Celsius), tire pressure decreases 1 psi (7 kPa). Because tire pressures fluctuate with temperature changes, tire pressures must be set when tires are at outdoor ambient temperatures. If the tire pressure drops enough to be detected by the TPMS, it will activate the low pressure warning light.
When the tire pressure warning light comes on solid and the message center displays “LOW TIRE PRESSURE,” check the air pressure of all tires and adjust to the specified cold pressure listed on the vehicle certification label (found on driver’s door or door pillar). Drive the vehicle at 20 mph (32 km/h) for at least two minutes. If the vehicle has been stationary for more than 30 minutes, a TPMS activation procedure may be needed. See tire pressure sensor activation. Make sure the warning light goes off. If the warning light stays on, there is a malfunction in the TPMS. See appropriate manufacturer service information.
When the tire pressure warning light flashes for 70 seconds and then remains illuminated, after a bulb-check has been performed and the message center displays warning messages, there is a malfunction in the TPMS. See appropriate manufacturer service information.
When the tire pressure warning light comes on solid and the message center displays “LOW TIRE PRESSURE,” check the air pressure of all tires and adjust to the specified cold pressure listed on vehicle certification label. Drive the vehicle at 20 mph (32 km/h) for at least two minutes. Make sure the warning light goes off.
The TPMS activation procedure may also be used in place of driving. See tire pressure sensor activation.
NOTE: In the following procedure, TPMS Activation Tool (P/N 204-363) must be used. NOTE: The tire pressure sensor training procedure must be done on a single vehicle, in an area without Radio Frequency (RF) noise and at least three feet (one meter) away from any other vehicle equipped with TPMS. RF noise is generated by electrical motor and appliance operation, cellular telephones and remote transmitters, power inverters and portable entertainment equipment.
1. Turn the ignition switch to the OFF position, then press and release the brake pedal.
2. Turn the ignition switch from the OFF position to the RUN position three times, ending in RUN position. Do not wait more than one minute between each key cycle.
3. Press and release the brake pedal.
4. Turn the ignition switch to the OFF position. NOTE: The horn will sound once and the tire pressure warning light will flash if train mode has been entered successfully (if equipped, the message center displays “TRAIN LF TIRE”).
5. Turn the ignition switch from the OFF position to the RUN position three times, ending in the RUN position. Do not wait more than one minute between each key cycle.
NOTE: It may take up to six seconds to activate a tire pressure sensor. During this time, the activation tool must remain against the sidewall of the tire.
NOTE: If a sensor does not respond to the activation tool, move the vehicle to rotate the wheels at least one-quarter of a turn and attempt to activate the same sensor again.
6. Place TPMS Activation Tool (P/N 204-363) on the left-front tire sidewall at the tire valve stem. Press the test button on the activation tool. The horn will sound briefly to indicate that the tire pressure sensor has been recognized by the SJB/BCM.
7. Within two minutes after the horn sounds, place the activation tool on the right-front tire sidewall 180 degrees from the valve stem for strap and cradle type sensors or at the valve stem for valve stem-mounted sensors. Repeat procedure for right-rear and left-rear tires, in that order.
8. When the tire 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 ignition is turned off, the training procedure was not successful.
9. Using the scan tool, locate the updated TPMS sensor identifiers trained to the BCM and document them on the applicable warranty claim. 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.
10. 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.
Tire pressure sensor activation
1. Turn ignition switch to the ON position.
2. Place the activation tool on the left-front tire sidewall at the tire valve stem. NOTE: A green light will flash and a beep will sound on the activation tool for each successful TPMS sensor response.
3. Press the test button on the activation tool to activate the TPMS sensor. For best results, activate each sensor twice. NOTE: If, after adjusting tire pressures and activating sensors, the tire pressure warning light is still illuminated, there is a malfunction in the TPMS. See appropriate manufacturer service information.
4. Repeat procedure for each remaining tire.
CAUTION: The tire should be demounted from the wheel using the tire changer manufacturer’s instructions. Use the following information to avoid damage during the demounting/mounting procedures.
NOTE: The use of run-flat tires (tires with steel body cord plies in the tire sidewall) when the vehicle is not originally equipped is not recommended, as it may cause the TPMS to malfunction. NOTE: If possible, use a digital tire gauge (Ford P/N 204-354, for example) any time tire pressures are measured to be sure that accurate values are obtained. Ford recommends the use of a digital or dial type tire pressure gauge rather than a stick type gauge for increased accuracy. NOTE: Tire pressure sensors are equipped with Lithium-ion batteries, and must be disposed of accordingly.
1. Remove the wheel and tire. NOTE: The valve stem is connected to the TPMS sensor. Do not pull the valve stem from the wheel, or damage to the sensor will occur.
2. Remove the valve stem core and fully deflate all air from the tire.
3. Remove the tire from the wheel following the tire manufacturer’s directions.
4. Remove the TPMS sensor from the valve in the following sequence (see Figure 1).
a. Using a T10 torx, remove the valve stem-to-TPMS sensor screw.
b. Carefully and firmly, pull the sensor straight down and separate it from the valve stem. NOTE: A new valve stem must be installed whenever a new tire or wheel is installed. NOTE: When installing a new wheel, always install a new valve stem and reuse the TPMS sensor from the previous wheel if possible. The TPMS will not have to be trained if the sensor is reused.
5. Using a suitable valve stem puller and a wood block, remove the valve stem from the wheel.
6. If the TPMS sensor is being reused, inspect it for damage and install new parts as necessary.
NOTE: To prevent TPMS sensor and valve stem damage, the valve stem must be installed onto the TPMS sensor and then installed into the wheel as an assembly.
1. Install a new valve stem onto the TPMS sensor tightening the valve stem-to-TPMS sensor screw to 13 in.-lbs. (1.5 Nm). NOTE: It is important to pull the valve stem and TPMS sensor assembly through the wheel rim hole in a direction parallel to the valve stem hole axis. If the assembly is pulled through at an angle, damage to the valve stem and sensor assembly may occur. NOTE: Use only a suitable fast-drying, corrosion-inhibiting tire bead lubricant to lubricate the tire. Use of anything other than tire bead lubricant may result in damage to the sensor.
2. Lubricate the valve stem with suitable fast-drying, corrosion-inhibiting tire bead lubricant and install the valve stem and TPMS sensor assembly into the wheel using a block of wood and a suitable valve stem installer. NOTE: Do not mount the tire at this time.
3. Make sure the valve stem rubber is fully seated against the wheel.
4. Position the wheel on the turntable of the tire machine, then lubricate and position the bottom bead of the tire on the wheel.
5. Mount the tire according to the tire manufacturer’s instructions being certain to position the machine arm at 6 o’clock with respect to the location of the valve to avoid damage to the sensor.
6. Inflate the tire to the pressure specified on the vehicle verification label located on the driver door or door pillar.
7. Install the wheel and tire.
8. If a new sensor has been installed it must be activated (see tire pressure sensor activation) and trained (see tire pressure sensor training). ■
Information for this column comes from Mitchell 1’s “Tire Pressure Monitoring Systems Guide” for domestic and import vehicles through 2013. Headquartered in Poway, Calif., Mitchell 1 has provided quality repair information solutions to the automotive industry for more than 80 years. For more information, visit www.mitchell1.com.
For more articles on TPMS, see: