Hyundai i-30: Tire Pressure Monitoring System / TPMS Sensor

Hyundai i30 (PD) 2018-2024 Service Manual / Suspension System (NON-ECS) / Tire Pressure Monitoring System / TPMS Sensor

Description and operation
Description

1.
General description
WU is a sensor placed in the tire that reports pressure and temperature.
The WU is mounted inside the wheels, fixed to the valve. The angle between the valve and the housing of the WU is variable.
This allows adaptation to various types of rims.
The Wheel Unit is made of a PCB supporting the electronic hardware and encapsulated inside a housing which is potted with polyurethane.
It is self-powered by a battery and includes all systems for parameter measurement (pressure, temperature and centrifugal acceleration and optionally rotation direction), RF transmission and LF detection.
To achieve the specified battery lifetime, the WU supports various measurement and transmission timings, depending on WU operation mode.
For RF transmission, WU uses an internal antenna.
2.
First Block Mode
: When vehicle start driving, Sensor enter Mode First Block.
Typical period of RF emissions is 16 sec. for 40 times for Auto-learning and Auto-location function.
3.
Driving Mode
: After 19 min. parking and then finishing Mode First Block mode, WU enter Driving mode.
Typical period of RF emissions are 64 sec above 4g vehicle speed.
4.
Parking Mode
: at below 3g Vehicle speed, enter Parking mode.
Typical periodicities of RF emissions are 13 hours.
Repair procedures
Replacement
1.
Remove the wheel and tire.
2.
Remove the valve core and deflate the tire.
3.
Install the wheel tire to the tire change machine.
4.
Push the tire as the illustration below.
5.
Remove the TPMS sensor by loosening the nut.
6.
Push the TPMS sensor into the valve hole on the rim.

  
•
Position sensor housing horizental to the plane of rim well.
•
Position TPMS sensor axis coaxial with rim valve holt axis.
7.
Pre-assemble the nut on the TPMS sensor.
8.
Tighten the TPMS sensor nut.
Tightening torque :
7.0 - 9.0 N.m (0.7 - 0.9 kgf.m, 5.2 - 6.6 lb.ft)

  
•
THE TPMS sensor fixing nut must not be reuesed.
•
Must asseble TPMS sensor without inclination in the right or left direction.
•
Gap between TPMS sensor housing and rim must be within 2.5 mm (0.0984 in).
•
TPMS sensor must be safe from harmful impact.
9.
Remove the tire change machine.
10.
Inject air into the tire until the beads are in the correct position.
Tier pressure :
230 kPa (3Autonomous Emergency Braking (AEB) System3 psi)

Inspection
After installing TPMS sensor test methods Thai
1.
Sealing washer on the outside rim of hole to be compressed.
2.
The lower part of the valve housing, a fixed place (no metal brackets) should be located.
3.
Housing is at least one or more points on the surface of the rim should contact.
4.
The rim of the housing mounting height shall not exceed the height of the chin.
[Faulty]

[Normally]
Diagnosis procedure by using diagnostic device
As manual for diagnosis methods by using diagnosis device, the main contents are as follows:
1.
Connect self-diagnosis connector (16pins) located in the lower of driver side crash pad to self-diagnosis device, and then turn the self-diagnosis device after key is ON.
2.
Select the "vehicle model" and "TPMS" on GDS vehicle selection screen, then select OK.
Diagnostic Procedure Using a Diagnostic Instrument
The following section describes how to diagnose faults using a diagnostic instrument.
1.
Connect the diagnostic instrument to the self-diagnostic connector (16-pin) beneath the crash pad on the side of driver's seat, and then turn on the ignition to activate the diagnostic instrument.
2.
In the GDS Vehicle Type Selection menu, select "Vehicle Type" and "TPMS" System, and then opt for "OK."
[Register Sensor Method]

  
•
Check that Write ID and Read ID are the match.
•
After successfully registering the sensor, perform "Sensor Wireless Information" to confirm that the sensor operates properly.

[Sensor Status Method]

  
•
Each entry must be checked for normal operation of each sensor.
•
After replacing the tires or sensors, check for proper operation of sensor after sensor registration process.

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