
1. |
Mode
(1) |
Virgin State
A. |
The receiver as a sole part is
shipped in this state. Replacement parts should
therefore arrive in this
state. |
B. |
In this state, there is no sensor
monitoring and no DTC
monitoring. |
C. |
The state indicates that platform
specific parameters must be written to the receiver and
that sensors are
un-learned. |

|
(2) |
Normal State
A. |
In order for tire inflation state
and DTC monitoring to occur, the receiver must be in
this state. |
B. |
In this state, automatic sensor
learning is enabled. |

|
(3) |
Test State
A. |
This state is only used in
manufacturing plant to check RF transmission between
sensor and receiver.

| | |
2. |
Overview
A. |
Receives RF data from
sensor. |
B. |
Uses sensor data to decide whether to
turn on TREAD Lamp. |
C. |
Learn TPM sensor for under inflation
monitoring automatically. |
D. |
Uses sensor information, distance
travelled, 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. | |
1. |
General Function
A. |
Auto-learn takes place only once per
Ignition cycle. |
B. |
On successful completion, 4 road wheel
sensor ID's are latched into memory for
monitoring. |
C. |
Until Auto-learn completes, previously
learned sensors are monitored for under inflation / leak
warnings. | |
2. |
General Conditions to Learn New
Sensors:
A. |
Receiver must determine that it is
confident that sensor is not
temporary: |
2) |
Uses confidence reduction of
previously learned
sensors. | |
B. |
Typical time at driving continuously
over 12.4 mph(20 kph) to learn a new sensor is up to 20
minutes. | |
3. |
General Conditions to Un-Learn a sensor that
is removed:
A. |
It takes less than 20 minutes at
12.4~18.6 mph(20~30kph). |
B. |
Confidence reduction is dependent on
time which vehicle is driven at speed greater than or equal to
12.4 mph(12
kph). | | |