Operation CHARM: Car repair manuals for everyone.

Principles of Operation

PRINCIPLES OF OPERATION

When the multifunction switch is placed in the LH or RH TURN positions, a voltage signal from the GEM is routed to ground. When the GEM detects the multifunction switch in the LH or RH TURN position, the GEM supplies voltage to the appropriate turn lamps in a flashing manner.

When the hazard warning switch is pressed, a voltage signal from the GEM is routed to ground. When the GEM detects a request for the hazard lamps, the GEM supplies voltage to all the turn signal lamps in a flashing manner. When operating correctly, the hazard lamps flash approximately 80 times per minute.