Hyundai Sonata: 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 Sonata LF 2014-2019 Service Manual: Intake Air Temperature Sensor (IATS) Repair procedures
Inspection 1. Turn the ignition switch OFF. 2. Disconnect the IATS connector. 3. Measure resistance between the IATS terminals 3 and 4. 4. Check that the resistance is within the specification. Specification: Refer to “Specification” ...