RECEIVER

1. |
Mode
(1) |
Virgin State (No TPMS sensor id's
learned)
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. |
D. |
In unlearned state when connected
in the vehicle with ignition key on the TPMS lamp will
flash at one second intervals.

| |
(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 type 1, 2, or 3
sensor learning mode can be started.

| | |
2. |
Overview
A. |
Receives RF data from
sensor. |
B. |
Uses sensor data to decide whether to
turn on TREAD Lamp. |
C. |
Uses sensor information, 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. |
D. |
Activates LFI for TPMS sensor
location. | |
LFI(Low Frequency Initiator)

1. |
Overview
A. |
Only High Line systems are fitted with
an LFI. |
B. |
The LFI is located in the wheel well of
each tire, to enable the receiver to determine the vehicle
position of each TPMS sensor for which it has a stored TPMS
sensor ID code. |
C. |
When first turned on, the receiver
activates the LFI's to wake up the TPMS sensors and get wheel
status. |
D. |
The LFI's are activated every 10 minutes
to keep the TPMS sensors awake while the key is
on. | |
2. |
Operating mode
A. |
When triggered by the receiver the LFI
broadcasts a 125 KHz signal through the tire to the TPMS
sensors to wake them up
sequentially. |
B. |
After broadcasting the LFI returns to
sleep mode until triggered again by the
receiver. |
C. |
Once the TPMS sensor has received the
125 KHz wake up signal, it broadcasts it's ID and status. This
information plus which LFI triggered it allows the receiver to
record which tire has which sensor.

| |
1. |
Type 1 learn mode
A. |
TPMS sensor learning via K-line
diagnostic bus using TPMS
Exciter. | |
2. |
Type 2 learn mode
B. |
Enter type 2 learn mode via K-line
command. |
C. |
Trigger each TPMS sensor in the
following order FL,FR,RL,RR with the LFI
wand. |
D. |
Exit type II learn
mode. | |
3. |
Type 3 learn mode (High line
only)
A. |
Enter type 3 learn mode via K-line
command. |
B. |
Receiver triggers each LFI and programs
TPMS sensors and received. |
•
|
If a vehicle equipped with TPMS is
aside the vehicle being inspecting, the TPMS sensor may
be learned in
correctly. |
•
|
If a TPMS sensor of other vehicle
is in the magnetic field of the LFI, the sensor ID may
be
learned. | | |