Kia Optima: Tire Pressure Monitoring System / TPMS Receiver

Kia Optima DL3 2019-2025 Service and Repair Manual / Suspension System / Tire Pressure Monitoring System / TPMS Receiver

Description and operation

Description

TPMS Receiver : IBU (Integrated Body Control Unit) integrated management

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 Auto-Location, no sensor wake-up, 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, automatic sensor location / learning is enabled.

Overview

–	Learn TPMS sensor for under inflation monitoring automatically.

–	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

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.

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 at driving continuously over 15.5 mph (25 kph) to learn a new sensor is up to 20 minutes.

General Conditions to Un-Learn a sensor that is removed :

–	It takes less than 20 minutes at 15.5 mph (20 - 30 kph).

–	Confidence reduction is dependent on time which vehicle is driven at speed greater than or equal to 12.4 mph (20 - 30 kph).

Repair procedures

Removal

1.	Remove the Integrated Body Control Unit (IBU). (Refer to Body Electrical System - "Integrated Body Control Unit (IBU)")

Installation

1.	Install in the reverse order of removal.

Diagnosis With KDS

Vehicle Name Writing

The main contents of diagnostic method using diagnostic device are as follows:

1.	Connect self-diagnosis connector (16 pins) located in the lower driver side crash pad to self-diagnostic device, and then turn on the self-diagnostic device after key is ON.

2.	Select the "IBU-TPMS" and "Vehicle Name Writing" on KDS vehicle selection screen, then select OK. The vehicle naming (Read/Write) is automatically typed and just select the vehicle's option in the selection tab below. ※ The vehicle naming code is different as the vehicle models

Wheel Sensor ID Writing

The main contents of diagnostic method using diagnostic device are as follows:

1.	Connect self-diagnosis connector (16 pins) located in the lower driver side crash pad to self-diagnostic device, and then turn on the self-diagnostic device after key is ON.

2.	Select the "IBU-TPMS" and "Wheel Sensor ID Writing" on KDS vehicle selection screen, then select OK.

TPMS Sensor

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