Circuit/System Description

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

The parking assist switch is part of the S26 Hazard Warning Switch. It is a normally open switch that closes when the switch is pressed. The K9 Body Control Module monitors the switch on signal circuit 2555 and the switch receives a constant ground on ground circuit 1450. When the parking assist switch is not pressed, the switch is open and signal voltage observed by the K9 Body Control Module is high. When the parking assist switch is pressed, the switch is closed and signal voltage observed by the K9 Body Control Module is low.

The parking assist indicator is part of the S26 Hazard Warning Switch. The K9 Body Control Module control the indicator with control circuit 5852 and the indicator receives a constant ground on ground circuit 1450. When the parking assist system is enabled, the K9 Body Control Module applies PWM voltage to circuit 5852, which will illuminate the indicator.