Kia Optima Hybrid: Tire Pressure Monitoring System / TPMS Receiver Description and Operation

General Function
Auto-locate/learn takes place only once per Ignition cycle.
On successful completion, 4 road wheel sensor ID''s, together with their respective road wheel positions are latched into memory for monitoring.
Until Auto-learn completes, previously learned sensors (together with their respective locations) are monitored for under inflation / leak warnings.
Spare tire inflation / DTC state is not displayed.
General Conditions to Learn New Sensors:
Receiver must Auto-Locate 4 road sensors.
Auto-location / learning only functions when speed is more than 20 kph (approx. 15 mph).
Receiver must determine that it is confident that sensor is not temporary:
Uses vehicle speed.
Uses confidence reduction of previously learned sensors.
Typical time at driving over 20 kph to learn a new sensor is up to 10 minutes.
General Conditions to Un-Learn a sensor that is removed:
It takes less than 10 minutes at 20~30kph.
Confidence reduction is dependant on vehicle speed and the number of sensors known to the receiver.
TPMS Receiver Schematic Diagrams

Circuit Diagram Connector pin number Pin NO.DiscriptionRemark1-2-3ECU battery terminal4-5CAN_High6CAN_Low7-8-9Ground10-11-12-13-14-15-16-17-18Ignition ON19-20- ...

TPMS Receiver Repair procedures

Replacement     When the receiver first arrives for replacement: a. It will be in Virgin State. b. It will not be configured for any specific platform. c. It will not have any sensor ID''s memorized. ...

Other information:

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