The SRS is virtually maintenancefree and there are no parts you can safely service by yourself. If the SRS air bag warning light does not illuminate when the ignition switch is in the ON position, or continuously remains on, have your vehicle immediately inspected by an authorized HYUNDAI dealer.
Any work on the SRS system, such as removing, installing, repairing, or any work on the steering wheel, the front passenger's panel, front seats and roof rails must be performed by an authorized HYUNDAI dealer. Improper handling of the SRS system may result in serious personal injury.
WARNING
To reduce the risk of serious injury or death, take the following precautions:
Hyundai Elantra AD (2016-2020) Service Manual: Mic Repair procedures
Inspection
1.
Disconnector the negative (-) battery terminal.
2.
Remove the overhead console lamp.
(Refer to Body Electrical System - "Overhead Console Lamp")
3.
Remove the overhead console cover after loosening the screws.
4.
Check the continuity of between terminals. ...
Hyundai Elantra AD (2016-2020) Service Manual: Ambient Temperature Sensor Description and Operation
Description
The ambient temperature sensor is located at the front of the
condenser and detects ambient air temperature. It is a negative type
thermistor; resistance will increase with lower temperature, and
decrease with higher temperature.
The sensor output will be used for discharge tem ...