Park Position Detect Switch

The park position detect switch is hardwired to the IPC through a single signal circuit. The park position detect switch is hardwired to a separate ground circuit through the selector lever. The IPC provides a reference voltage to the park position detect switch. When the selector lever is in PARK (P), the park position detect switch closes to ground, pulling the reference voltage low. When the selector lever is moved out of PARK (P), the park position detect switch sends the reference voltage high.