Hyundai Elantra: Button Engine Start System / Start/Stop Button Repair procedures

Removal

1.	Disconnect the negative(-) battery terminal.

2.	Remove the crash ped lower panel. (Refer to Body - "Crash Ped Lower Panel")

3.	Remove the start/stop button (B) after disconnect the connector (A).

Installation

1.	Install the start/stop button.

2.	Install the crash pad lower panel.

3.	Connect the negative (-) battery terminal.

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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 ...