Kia Cee'd: Tire Pressure Monitoring System / TPMS Sensor Description and operation

Kia Cee'd JD Service Manual / Suspension System / Tire Pressure Monitoring System / TPMS Sensor Description and operation

Description

Function

•	By detecting the pressure, temperature, acceleration, and battery condition, transmit information to ECU by a wireless RF.

•	Wheel location is recognized by comparing with Wheel Pulse of ECS(ABS) and acceleration values of the sensor.(High Line)

Structure and features

•	It is consists of 4 that one for each wheel per vehicle is equipped.

•	Frequency change way is FSK, and High Line is used in common.

Mode

•	It is consists of the initial factory mode(EOL test mode}, the stop and driving mode, and the automatic learning mode.

Features	Function
Valve Type	Clamp Type
Threaded length of the valve cam	8.4mm
Material nut	AI6061[Baolong]
Seal	SR Seal
Battery Type	CR2450 Type

TPMS Automatic location Learning

•	Wheel angular velocity of each wheel is different when the two following reasons:

1)	Slip per each axis will occurs different.

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

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

•	TPMS sensor is transmitred 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 from when receiving RF signals from the sensor.

•	RF signal of sensor ID 1,2,.3,4 is received every time, transmit to ID of the most highly correlation among the phase of each collected wheel.(RF signal reception every time, the phase of the tire is transmitted to the constant wheel.)

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

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

•	The sensor is converted into Mode Parking when stopping or parking more than 15 minutes, and Mode Parking is converted into Mode First Block when detecting acceleration over 4g(15~20km/h).

Warning Lamp

Normal Mode

Function

•	Every IGN ON time, Cluster check TPMS Unit is available to communication on the CAN line.

[Normal operation]

•	Cluster blinking for 3 seconds then off

[Wrong operation]

•	Cluster blinking for 1min then on.

Virgin mode

Function

•	TPMS is not learned sensor IDs

[Normal operation]

•	Cluster blinking for 3 seconds then off for 3second (repeat)

Low pressure lamp

Function

•	TPMS unit detect low pressure

[Normal operation]

•	There are no low pressure tire

[Low pressure lamp on operation]

•	There are low pressure tire

•	The tire pressure is below lamp on condition

Malfunction lamp

Function

•	TPMS unit detection system failure

[Normal operation]

•	There are no system failure

–	Cluster lamp off of TPMS

[Malfunction lamp on operation]

•	There are system failure

–	Cluster blinking for 1 min then on

TPMS sensors when replacing the precautions

TPMS sensors when replacing

•

Replaced the sensor should be stored in the ID of the receiver, so the sensor KEY OFF before changing the receiver must wait 19 minutes after the super-vision mode as it enters the parking location ID and learning can take place. After 25km / h or more than 10 minutes driving to the vehicle speed and location ID is saved automatically. Yeogeonsang difficult road, but the actual storage, if necessary, rapid ID TPMS sensor by using exciter's ID is entered directly. (High Line to the instructions in the case of diagnostic equipment shall comply with the location of the tire.)

Tire exchange position

•

Has changed the location of the sensor on the receiver should be recognized. Pressure sensors are also located, as is the case with the exchange before the exchange is waiting more than 19 minutes after the KEY OFF 25km / h or more, driving more than 10 minutes are saved automatically when you changed the location. In practice, however, difficult to ride fast exciter TPMS ID is stored, if necessary, using the sensor's ID is entered directly. (High Line to the instructions in the case of diagnostic equipment shall comply with the location of the tire.)

Receiver exchange position

: Diagnostic Equipment (TPMS exciter included) will conduct the following tasks.

(1)	Vehicles must enter the code.

(2)	Enter the VIN number.

(3)	Makes the sensor ID to enter.

(4)	IG ON IG OFF after 10 seconds is. ("TPMS" to determine whether the lamp lit)

Troubleshooting

TPMS Inspection method Inspection Find the inspection number by referring to the table above. ...

TPMS Sensor Repair procedures

Removal 1. Remove the valve core and deflate the tire. 2. Remove the side of the tire bead area from the wheel using tire changing ...

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