Description |
1. |
Wiper Control System
When "AUTO" switch signal is received from the multi-function
switch on the right, the integrated rain sensor detects the amount of
rainfall. The sensor is installed inside the upper part of the front
window for wiper motor control.
This system automatically controls the operation duration and
speed of the wiper depending on the measured amount of rainfall even if
the driver does not operate the wiper switch. |
Functions and Operating Principles |
1. |
Detecting the amount of rainfall
The light (beam) emitted from light emitting diodes (LED) is
totally reflected on the external surface of the windshield and comes
back to the photo diodes. When there is water on the external surface of
the windshield, the light is optically separated and reflected
partially and the remaining brightness is measured by the photo diodes.
Water remaining on the windshield results in the light being not totally
reflected. The loss of brightness due to this indicates how much the
glass surface is wet. |
1. |
Dust on the measuring surface and other surfaces on the
light path (surface of light emitting diodes and photo diodes, fiber
optics, bracket, and glass surface of windshield joint area) weakens the
received light. |
2. |
Movement of windshield and bracket |
3. |
Movement of bracket due to vibration |
4. |
Damaged wiper blade |
|
1. |
Operational status of rain sensor
|
1. |
When there is ice or foreign matter in the detecting area,
integrated rain sensor cannot recognize the condition for operation
correctly. |
1. |
Rain sensor
|
Hyundai Elantra AD (2016-2020) Service Manual: Components and Components Location
Component Location
Windshield deicer system prevent windshield wiper from
freezing in the winter season. It consists of deicer in the lower part
of windshield, switch and relay. Body control module receives an input
signal from the front defroster switch, then controls relay.
When the fron ...
Hyundai Elantra AD (2016-2020) Service Manual: Immobilizer Control Unit Repair procedures
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the main crash pad assembly.
(Refer to Body - "Main Crash Pad Assembly")
3.
Discnnect the connector of the immobilizer unit and then remove the immobilizer unit (A) after loosening a nut.
Installation
1.
Install the ...