Kia Optima Hybrid: MTS System / Telemetics Unit (TMU) Repair procedures

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Body Electrical System / MTS System / Telemetics Unit (TMU) Repair procedures

Removal

•	Take care not to scratch the crash pad and related parts.

1.	Disconnect the negative (-) battery terminal.

2.	Remove the AVN head unit. (Refer to AVN System - "AVN Head Unit")

3.	Disconnect the TMU unit and GPS connector (A).

4.	Remove the TMU unit (B) after loosening the nuts.

Installation

1.	Install the TMU unit.

2.	Install the AVN head unit and center fascia panel.

3.	Connect the negative (-) battery terminal.

Inspection

1.	After replacing the TMU unit, access Dealer Engineering Mode in head unit. (Refer to MTS system - "TMU Dealer Engineering Mode")

2.	Check the TMU version ("App S/W") from the head unit screen. [Audio type] [AVN type]

3.	Check the H/U Type from the head unit screen. [Audio type] [AVN type]

4.	Check the Model from the head unit screen. [Audio type] [AVN type]

Telemetics Unit (TMU) Components and Components Location

Component Connector Pin Specification No.Pin NameTypeFromToDescription (Wiring Spec.)1GNDDC GroundTMUBatteryConnected to battery ground2GNDDC GroundTMUBatteryConnected to battery ground3-----4-----5-----6-----7-----8-----9-----10-----11-----12HS ...

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