Circuit/System Description

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.

The steering column has a tilt/telescoping control system that consists of a K99 Steering Column Tilt Wheel and Telescope Control Module capable of serial data communication, a steering column power assembly with positioning actuators and sensors, and a S71 Steering Column Tilt Wheel and Telescope Switch. The K99 Steering Column Tilt Wheel and Telescope Control Module will wake up either by the serial data or by the S71 Steering Column Tilt Wheel and Telescope Switch.

Two position sensors are hall effect sensors and are used by the K99 Steering Column Tilt Wheel and Telescope Control Module. The K99 Steering Column Tilt Wheel and Telescope Control Module provides a 12 V reference voltage and a ground to both the tilt and telescoping position sensors. The sensor feedback circuit voltage varies from 0 - 12 V. Each sensor is part of the actuator assembly. The K99 Steering Column Tilt Wheel and Telescope Control Module monitors the feedback voltage to determine the column position.

All DTCs and data from K99 Steering Column Tilt Wheel and Telescope Control Module is communicated through the serial data and stored in the K40D Driver Seat Adjuster Memory Module.