Kia Sedona: TPMS Receiver Description and Operation - Tire Pressure Monitoring System - Suspension System - Kia Sedona YP Service ManualKia Sedona: TPMS Receiver Description and Operation

Third generation YP (2014-2020) / Kia Sedona YP Service Manual / Suspension System / Tire Pressure Monitoring System / TPMS Receiver Description and Operation

Description

1.
Mode
(1)
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 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, sensor monitoring and DTC monitoring are not available.
(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.
Learns TPM sensor for automatic under-inflation monitoring.
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 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 to learn a new sensor while driving continuously at over 15.5 mph (25 kph) 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).
At vehicle speeds in excess of 20 km/h, it can take up to 19 minutes to learn a new sensor.
TPMS Sensor Repair procedures
Removal 1. Remove the tire. (Refer to Tires/Wheels - "Tire") 2. Remove the screw with torx driver (A).     • When installing the bead brake, make sure tha ...

TPMS Receiver Schematic Diagrams
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