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Home >> Lincoln >> 2018 >> MKZ Select, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1161 (Information System And Entertainment System - General Information - Vehicles Without: THX Audio System) >> Description And Operation >> Information and Entertainment System - System Operation and Component Description >> Component Description >> TCU - If Equipped

TCU - If Equipped

WARNING: This page is about a different car, the 2018 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.

The TCU can be operated with the ignition in RUN, ACC, or OFF.

The TCU uses a non-serviceable internal SIM card to connect to a mobile phone network in order to send and receive data. When a subscription is active, the SIM card is associated with the ESN of the TCU, and the TCU ESN is associated with the VIN. As a result, the TCU cannot be swapped from one vehicle to another.

The TCU relies upon CAN messages to gather and send information, and to perform certain functions based upon remote commands from the mobile phone application.

The TCU requires PMI when it is replaced.

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