Gm Global Technolgoy Operations, Inc.

Kimberly A Morse-Harvey

David T Proefke

Thomas E Utter

Aaron P Creguer

Craig Atiyeh

David R Mick

Methods and apparatus are provided for an electronic control unit that can be adjusted or changed to operate in different manners for different circumstances. The apparatus includes an electronic control unit (ECU) for operation of a plurality of electronic components, such as latch motors. In one embodiment, the apparatus comprises a plurality of inputs configured to receive a connection from a plurality of handle sensors, and a plurality of outputs configured to connect to the plurality of latch motors. The ECU also comprises a conversion loop with a receptacle and a receptacle circuit. The receptacle circuit can be configured as either an open or closed circuit, and the receptacle circuit is accessible via the receptacle. The ECU is configured to operate in either a first mode or a second mode depending on whether the receptacle circuit is open or closed.

Dual function electronic control unit

Methods and systems for controlling an operational state of a vehicle having a keyless rotary ignition switch and a locking mechanism coupled to the keyless rotary ignition switch are provided. The locking mechanism is disengaged to allow the keyless rotary ignition switch to be rotated from a first position to a second position by a user when an electronic authorization is detected. The locking mechanism is engaged to prevent the keyless rotary ignition switch from being rotated from the first position to the second position by the user when no electronic authorization is detected.

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Warren, MI, United States of America

Kimberly A Morse-Harvey