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 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.
(2)
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 learning is enabled.
(3)
Test State
•
This state is only used in manufacturing plant to check
RF transmission between sensor and receiver.
2.
Overview
•
Receives RF data from sensor.
•
Uses sensor data to decide whether to turn on TREAD Lamp.
•
Learn TPM sensor for under inflation monitoring automatically.
•
Uses sensor information, distance travelled, background noise
levels, Auto-learn status, short / open circuit output status,
vehicle battery level, internal receiver states to determine
if there is a system or a vehicle fault.
Operation
1.
General Function
•
Auto-learn takes place only once per Ignition cycle.
•
On successful completion, 4 road wheel sensor ID's are latched
into memory for monitoring.
•
Until Auto-learn completes, previously learned sensors are monitored
for under inflation / leak warnings.
2.
General Conditions to Learn New Sensors:
•
Receiver must determine that it is confident that sensor is
not temporary:
a.
Uses vehicle speed.
b.
Uses confidence reduction of previously learned sensors.
•
Typical time at driving continuously over 15.5 mph(25 kph) to
learn a new sensor is up to 20 minutes.
3.
General Conditions to Un-Learn a sensor that is removed:
•
It takes less than 20 minutes at 15.5 mph(25 mph).
•
Confidence reduction is dependent on time which vehicle is driven
at speed greater than or equal to 12.4 mph(20 kph).
The brightness of the instrument panel illumination is changed by pressing the
illumination control button (“+” or “-”) when the ignition switch or Engine Start/Stop
button is ON, or the tale lights are turned on.
If you hold the illumination control button (“+” or “-”), the br ...