A/C-Heater

CIRCUIT OPERATION
The A/C-Heater System is powered by a by several fuses. Fuse 10, a 15 Amp fuse located in the fuse block, is HOT in the RUN position. This fuse powers the coil side of the A/C compressor clutch relay located in the Power Distribution Center (PDC).

A 30 Amp fuse, on circuit A16 located in the PDC, powers the solid state radiator fan relay. This fuse is HOT at all times. The 10 Amp fuse on circuit A17 located in the PDC powers the contact side of the A/C compressor clutch relay.

The A/C-Heater blower motor is protected by a 25 Amp fuse located in cavity 7 of the fuse block. This fuse in HOT in the RUN position only. When the ignition switch is in the RUN position, power is supplied to the fuse on circuit A22. The power leaves the fuse on circuit C1 and goes directly to the blower motor.

There is a 4 Amp fuse located in cavity 12 of the fuse block used for the illumination lamps in the A/C - Heater control. The fuse is HOT at all times.