Hyundai Elantra: Description - TPMS Receiver. Description 
and Operation - Tire Pressure Monitoring System - Suspension System - Hyundai Elantra MD 2010-2018 Service manualHyundai Elantra: Description


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 / 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 A. Auto-learn takes place only once per Ignition cycle. B. On successful compl ...