Operational Mode

After the vehicle reaches a speed of approximately 33 km/h (20 MPH), the module will perform a dynamic check of the tire pressure transmitters. During the dynamic check, the vehicle speed may fall below 33 km/h (20 MPH) but not for longer than one minute. The LTPW module will confirm if the Radio Frequency (RF) transmissions from each tire pressure transmitters have been received.

If any component exhibits a trouble condition during the initialization or dynamic check, the LTPW module will set a DTC and illuminate the "Low Tire" warning indicator. A fault can also occur if the LTPW module (after initialization) does not receive any transmissions from the transmitter/sensor for six consecutive ignition cycles.