Tire Location And Identification

The TPMS can identify the position of the wheels on the vehicle and assign a received tire pressure sensor identification to a specific position on the vehicle, for example front left, front right, rear left and rear right. This feature is required because of the different pressure targets and thresholds that could exist between the front and rear tires.

The wheel location is performed automatically by the TPMS using an auto-location function. This function requires no manual intervention by the driver.

The TPMS can automatically detect, under all operating conditions, the following:

• One or more tire pressure sensors have been replaced
• One or more tire pressure sensors are missing or faulty
• One or more tires in use on the vehicle have exchanged position on the vehicle
• One or more incompatible tire pressure sensors have been fitted

The tire-learn and location process is ready to commence when the vehicle has been stationary or is traveling at less than 12.5 mph (20 km/h) for 15 minutes. This is known as 'parking mode'. The learn/locate process requires the vehicle to be driven at speeds of more than 12.5 mph (20 km/h) for up to 10 minutes. If the vehicle speed reduces to below 12.5 mph (20 km/h), the learn process timer is suspended until the vehicle speed increases to more than 12.5 mph (20 km/h), after which time the timer is resumed. If the vehicle speed remains below 12.5 mph (20 km/h) for more than 15 minutes, the timer is set to zero and the process starts again.