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

Kia Cadenza YG 2016-2025 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 monitor. (Refer to "AVN System" - "AVN Head Unit")

3.	Remove the TMU unit (A) after loosening the mounting screws.

4.	Disconnect the connectors (A) from the TMU unit.

Installation

1.	Install the TMU unit after connecting the connector.

2.	Install the AVN monitor.

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.

3.	Check the H/U Type from the head unit screen.

4.	Check the Model from the head unit screen.

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-- ...

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