Hyundai Elantra: 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. |
Description and Operation
Description
TREAD Lamp
-
Tire Under Inflation / Leak Warning.
1.
Turn on condition
A.
When tire pressure is below allowed threshold
B.
When rapid leak is detected by the sensor.
C.
...
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 machine .
•
The tire bead should ...
Other information:
Hyundai Elantra AD (2016-2020) Service Manual: Description and Operation
Description
The changed position of the seat by memorizing into the power
seat unit with IMS switch controlling the optimal seat position set by
the driver can be restored with the IMS switch.
It has the function of prohibiting the restoring action during driving and emergent stopping the l ...
Hyundai Elantra AD (2016-2020) Service Manual: AVN(Audio Video Navigation) head unit Repair procedures
Removal
•
Take care not to scratch the cluster fascia panel and related parts.
•
Eject all the disc before removing the AVN head unit to prevent damaging the DVD player's load mechanism.
•
Wrap the protective tape on the tool to disassemble with the scre ...
