Hyundai Sonata LF: BLUE LINK / BLUE LINK Unit Repair procedures

Hyundai Sonata LF 2014-2019 Service Manual / Body Electrical System / BLUE LINK / BLUE LINK Unit Repair procedures

Removal

1.	Disconnect the negative (-) battery terminal.

2.	Remove the main crash pad assembly. (Refer to Body - "Main Crash Pad Assembly")

3.	Remove the knee airbag (KAB) module. (Refer to Restraint - "Knee Airbag (KAB) Module")

4.	Remove the driver's side shower duct. (Refer to Heating, Ventilation and Air Conditioning - "Temperature Control Actuator")

5.	Remove the blue link unit after disconnect the connector and loosening the nut and screws.

Installation

1.	Install the blue link unit.

2.	install the main crash pad.

3.	Connect the negative (-) battery terminal.

Inspection

Diagnosis with GDS

The body electrocal system can be quickly diagnosed failed parts with vehicle diagnostic system (GDS) The diagnostic system (GDS) provides the following information.

(1)	Self diagnosis : Checking the failure code (DTC) and display

(2)	Current data : Checking the system input/output data state

(3)	Actuator test : Checking the system operation condition

(4)	Additional function : Other controlling such as he system option and zero point adjustment

2.	Select the "Car Model" and the system to be checked in order to check the vehicle with the tester.

3.	Select the "Telematics Unit (TMU)" to check the telematics unit.

4.	Select the "Current Data" menu to search the current state of the input/output data. The input/output data for the sensors corresponding to the TMU can be checked.

5.	To check the DTC of the TMU, select "Diagnostic trouble codes".

BLUE LINK Unit Components and Components Location

C..

BLUE LINK Remote Control Schematic Diagram

S..

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