Operational Mode

After the vehicle reaches a speed of 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 TPM module will confirm if the Radio Frequency (RF) transmissions from each tire pressure transmitters have been received.

If any component exhibits a fault condition during the initialization or dynamic check, the TPM module will set a DTC and enable the "Lo Tire" LCD message. A fault can also occur if the TPM module (after initialization) does not receive any transmissions from the transmitter/sensor for six consecutive ignition cycles