Malfunction Indicator

A time delay switch mounted on actuator will cause system power supply fuse to blow and brake warning light to come on if diaphragm remains in forward position for more than 60 seconds. Also, warning light will come on should fuse blow for other reasons or a power supply system malfunction. Control circuit solenoid is functioned through one cycle each time ignition key is turned to ON position. When cycle occurs, an audible click and cycling sound may be heard.