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Home >> Lincoln >> 2018 >> MKZ Select, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1564 (Instrumentation, Message Center And Warning Chimes (Except Electric) (1 Of2)) >> Description And Operation >> Message Center - System Operation and Component Description >> Component Description >> Steering Wheel Switch - Message Center

Steering Wheel Switch - Message Center

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

The message center switch is the LH steering wheel switch and is comprised of 5 buttons. The message center switch uses different resistance values associated with each specific button. The IPC sends out a reference voltage to the LH steering wheel switch on the input circuit and monitors the voltage drops. The voltage drop varies depending upon the resistance of the specific button pressed, providing indication to the IPC which switch is pressed.

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