Left Hand Drive

CIRCUIT OPERATION
The rear window defogger relay supplies power to the rear window defogger grid. Circuit F83 from fuse 10 in the fuse block supplies power to the rear window defogger relay when the ignition switch is in the RUN position.

When the operator presses the rear window defogger switch, the contacts inside the switch momentarily CLOSE and circuit C80 connects the switch to the relay This causes the relay to change state and complete a circuit to energize the coil side of the relay and start the relay timer.

Circuit F81 from fuse 18 in the fuse block supplies voltage to the coil and contact sides of the relay Circuit Z1 provides ground for the relay.

When the rear window defogger relay energizes, the contacts inside the relay CLOSE and connect circuit F81 to circuit C15. Circuit C15 splices to power the rear window defogger grid and the indicator lamp in the rear window defogger switch. Circuit Z1 provides ground for the rear window defogger grid.