Hyundai Elantra: Blind Spot Detection System / Blind Spot Detection Unit Repair procedures

Removal

1.	Disconnect the negative (-) battery terminal.

2.	Remove the rear bumper. (Refer to Body - "Rear Bumper")

Remove the BSD unit (A) after loosening the mounting nuts.

•	Take care not to separate the bracket from rear bumper when removing the BSD sensor.

Installation

1.	Install the BSD units to the rear bumper.

2.	Install the rear bumper.

Connect the negative (-) battery terminal.

•	Take care not to confuse left side (master) and right side (slave) unit when installing.

•	BSD units connector connect to the wiring connector.

Circuit Diagram ...

Circuit Diagram ...

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 ...