1991 Chevy Cavalier Connector Fuse Box Diagram 1991 Chevy Cavalier Connector Fuse Box Map Fuse Panel Layout Diagram Parts: EGR control, shift light on, TCC control, serial data, sensor signa, ESC signal, A/C signal, system ground, EST control, EST baypass, sensor signal, sensor ground, map signal, temperature signal, battery, fuel pump signal, fuel pump.