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Home >> Lincoln >> 2021 >> Nautilus Base, FWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Steering Column Switches >> Steering Wheel And Column Electrical Components >> Description And Operation >> Steering Wheel and Column Electrical Components - System Operation and Component Description >> Component Description >> BCM
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Component Description: BCM

The BCM controls the run/start relays and sets the vehicle ignition mode based on inputs from the ignition switch, or push button ignition switch. It communicates the ignition mode to other modules over the CAN. If a fault is detected with the ignition switch system, Diagnostic Trouble Codes (DTCs) are set in the BCM.

When the BCM is replaced, the parameter reset and PMI procedures must be carried out and at least 2 keys programmed to it.

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