For 1990-2009 cars

### Circuit Operation -- Cigar Lighter/Auxiliary Outlet

The CIGAR/DLC fuse applies voltage at all times to the cigar lighter through CKT 440. The cigar lighter heats up, when pushed in, completing the circuit to ground through CKT 1450. When the heating element sufficiently heats, the cigar lighter opens the circuit.

The FRT PWR SCKT fuse applies voltage at all times to the front electric accessory plug housing through CKT 1940. When plugged in, the accessory completes the ground circuit. CKT 150 applies ground to the front electric accessory plug housing.

The RIGHT REAR PWR SCKT fuse applies voltage at all times to the rear accessory plug housing through CKT 2540. When plugged in, the accessory completes the ground circuit. CKT 850 applies ground to the rear electric accessory plug housing.