Circuit/System Description

The solenoid valves are integral parts of the brake pressure modulator. The modulator contains an isolation solenoid valve and a dump solenoid valve for each wheel along with a traction/stability control supply solenoid valve and isolation solenoid valve for each brake circuit. The solenoid valves are not engaged during normal system operation. When the ABS, traction control or stability control operation is required the electronic brake control module turns the required solenoid valves ON. The electronic brake control module detects an over temperature condition with one or more of the solenoids due to an extended ABS, traction control or stability control event lasting more than fifteen seconds.