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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 (2014-2025) / 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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