Mode
Virgin State
The receiver as a sole part is shipped in this state. Replacement parts should therefore arrive in this state.
In this state, there is no Auto-Location, no sensor wake-up, no sensor monitoring and no DTC monitoring..
The state indicates that platform specific parameters must be written to the receiver and that sensors are un-learned.
Normal State
In order for tire inflation state and DTC monitoring to occur, the receiver must be in this state.
In this state, automatic sensor location / learning is enabled.
Overview
Sends LF command data to initiators.
Controls sensor state:
Ignition on - Normal Delayed
Ignition off - Storage.
Auto-Locates sensors.
Auto-Learns new sensors.
Receives RF data from sensor.
Uses sensor data to decide whether to turn on TREAD Lamp / wheel location LED's.
Uses sensor information, distance traveled, background noise levels, Auto-learn status, short circuit output status, vehicle battery level, internal receiver states to determine if there is a system or a vehicle fault.
General Function
Auto-locate/learn takes place only once per Ignition cycle.
On successful completion, 4 road wheel sensor ID's, together with their respective road wheel positions are latched into memory for monitoring.
Until Auto-learn completes, previously learned sensors (together with their respective locations) are monitored for under inflation / leak warnings.
Spare tire inflation / DTC state is not displayed.
General Conditions to Learn New Sensors:
Receiver must Auto-Locate 4 road sensors.
Auto-location / learning only functions when speed is more than 20 kph (approx. 15 mph).
Receiver must determine that it is confident that sensor is not temporary:
Uses vehicle speed. Uses confidence reduction of previously learned sensors. |
Typical time at driving over 20 kph to learn a new sensor is up to 10 minutes.
General Conditions to Un-Learn a sensor that is removed:
It takes less than 10 minutes at 20~30kph.
Confidence reduction is dependant on vehicle speed and the number of sensors known to the receiver.
