Circuit Description

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The instrument panel cluster (IPC) illuminates the stability system caution indicator during the IPC bulb check or when the electronic brake control module (EBCM) sends a serial data message to the IPC commanding the indicator ON. The stability system caution indicator is used to indicate when the vehicle stability enhancement system (VSES) is disabled.

During aggressive driving conditions which repeatedly activate the VSES or traction control system (TCS), one or more of the solenoid coils may become overheated. The stability system caution indicator is displayed at this time and the EBCM disables all VSES/TCS brake pressure applications in an attempt to decrease the solenoid temperatures. Coil temperatures are estimated by the EBCM based on ambient temperature and monitored solenoid activation and may not coincide with actual solenoid temperatures. The stability system caution indicator turns OFF and normal VSES/TCS activity resumes when the EBCM determines that the solenoids have cooled sufficiently.