Hyundai Sonata: Telemetics Unit (TMU). Repair procedures - MTS System - Body Electrical SystemHyundai Sonata: Telemetics Unit (TMU). Repair procedures

Removal

1.
Remove the audio monitor (or AVN head unit) after loosening the mounting screws.
(Refer to the BE group - "Audio Unit" or "AVN Unit")
2.
Remove the MTS unit (A) after loosening the mounting screws.

Installation

1.
Install the MTS unit.
2.
Install the audio monitor (or AVN head unit) and crash pad center fascia panel.

Inspection

1.
After replacing the TMU, connect to "call center" by pushing the Blue Link button.
2.
If Blue Link service connected successfully, and then technician can hear the "Welcome to Hyundai Bluelink" sound.
After replacing the TMU, the TMU automatically read the Vehicle Identity Number (VIN) and send it to Blue Link service center.
In this reason, technician have to test that Blue Link connect normally.

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