Kia Sorento: TPMS Sensor Description and Operation

Description

Suspension System — Tire Pressure Monitoring System / TPMS Sensor / Description and Operation / Description illustration

Function

•	TPMS sensor (Transmitter) detects the motion and sends the pressure, temperature data via RF signal to ECU.

•	By comparing ABS wheel pulses with sensor RF signal transmission locations, wheel automatic position learning is conducted to recognize the corresponding wheel position.

Configurations and Features

•	There are four (4) TPMS sensors mounted in each wheel of the vehicle.

•	The frequency conversion type is FSK, and the carrier frequency is 433.92 MHz.

Mode

It consists of off mode, stop mode, rotation mode, and learning mode.

Illustration	Function
Valve type	Snap-in type [rubber valve]
Screw	Screw T10 [Continental Certified Parts]
ASIC	Gen 6
Battery type	CR2032 HR type

TPMS Automatic Location Learning

•	Wheel angular velocity of wheels are different from each other in the following cases:

1)	Slip for each axis occurs differently.

2)	Rotation radius (the radius of curve) for each wheel is different.

3)	Tire wear, internal pressure, tire specifications, etc. for each tire are different.

•	TPMS sensor is transmitted to RF signal at only specific phase (the angle of the tire) in the learning mode.

•	TPMS receiver checks each tire phase (tire angle) information on receiving RF signals from the sensor.

•	Every time RF signals from sensor IDs 1, 2, 3, and 4 are received, the ID with the highest correlation among the phase of each collected wheel is transmitted. (In other words, each time RF signal is received, the phase of the tire is transmitted to the most constant wheel.)

•	TPMS sensor transmits the RF signal at intervals of 16 seconds in the learning mode.

TPMS Automatic Location Operating

•	After stopping or parking for more than 19 minutes, automatic learning function in every driving position is performed.

•	The sensor is converted to Parking Mode when stopped or parked for more than 15 minutes. When acceleration of over 4g (15-20 ㎞/h) is detected in Parking Mode, it is converted to First Block Mode.

TPMS Receiver On Vehicle Inspection On Vehicle Inspection 1. Save the vehicle code, VIN, and sensor ID in the receiver and check wheth...

Inspection Inspect After Installing Tire Pressure Sensor 1. The seal washers must be compressed against the outer surface of the rim hole. ...

Manuals list