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Hyundai Equus: Occupant classification system

Your vehicle is equipped with an occupant classification system in the front passenger's seat.
The occupant classification system is designed to detect the presence of a properly-seated front passenger and determine if the passenger's front air bag should be enabled (may inflate) or not. The driver's front air bag is not affected or controlled by the occupant classification system.
SRS components and functions
Main components of occupant classification systemON/OFF Solenoid Valve Description and Operation
Description
ON/OFF solenoid valve is attached to the valve body and is an on/off solenoid valve that is used to change gears. ...
Input Speed Sensor Repair procedures
Inspection
1.
Check signal waveform of Input speed sensor using the GDS.
Specification: Refer to "Signal Wave Form" section.
...
Erasing HomeLink® buttons
Individual buttons cannot be erased. However, to erase all three programmed buttons:
1. Press and hold the two outer HomeLink® buttons until the indicator light begins
to flash-after 20 seconds.
...