Circuit/System Description
WARNING: This page is about a different car, the 2012 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
The driver exterior door handle switch signal circuit provides inputs to the keyless entry control module when the driver exterior door handle switch is activated. These inputs allow the keyless entry control module to detect a driver door open request. The keyless entry control module provides a signal voltage to the driver exterior door handle switch via the driver door handle switch signal circuit. When the driver door handle is activated, the switch closes and the voltage signals from the keyless entry control module is pulled to ground.