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Home >> Lincoln >> 2021 >> Navigator Base, 4WD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Passive Anti-Theft System (Pats) - Vehicles With: Phone As A Key >> Description And Operation >> Passive Anti-Theft System (PATS) - System Operation And Component Description >> Component Description >> TCU

Component Description: TCU

The TCU is the gateway between the on-board client, RFA module and the Phone as a Key Off Board Client, New Generation Service Delivery Network (SDN) to provide secure communication. Refer to: Information and Entertainment System - Overview .

The TCU requires PMI when it is replaced. Replacement of the TCU has no impact on the customer access key.