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# Kia Soul EV: Tire Pressure Monitoring System / TPMS Receiver Description and Operation

Kia Soul EV (PS EV) 2015-2020 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, automatic sensor learning is enabled.
(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.
• | Learn TPM 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

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 at driving continuously over 15.5 mph(25 kph) to learn a new sensor 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).
• | Confidence reduction is dependent on time which vehicle is driven at speed greater than or equal to 12.4 mph(20 kph).

##### 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 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 ...

##### Other information:

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