Circuit Operation

CIRCUIT OPERATION
The instrument cluster contains the gauges and warning lamps. All gauges have magnetic movements.

When the ignition switch is in either the START or RUN position, circuit A1 from fuse 16 in the Power Distribution Center (PDC) connects to circuit A21.

Circuit A21 connects to bus bars in the fuse block that feed circuit G5 through fuse 17 and circuit F14 through fuse 18. Circuit G5 supplies battery voltage to the voltmeter, engine oil pressure gauge, and oil pressure warning lamp. Circuit F14 supplies battery voltage to the malfunction indicator lamp (check engine), engine coolant temperature gauge, speedometer, fuel gauge, and low washer fluid lamp.

Circuit E2 from fuse 20 in the fuse block feeds the illumination lamps. Circuit E1 from the headlamp switch powers fuse 20 when the parking lamps or headlamp are ON.

Circuit Z1 provides ground for the illumination lamps, gauges and warning lamps.