Operation CHARM: Car repair manuals for everyone.

General Information

The Rear Heater Controlled by the Rear Heater Switch Battery Voltage is provided to the Rear Heater and A/C Relay (Rear) by HTR-A/C (Fuse 12) and BRN (141) wire. The Coil of this Relay is grounded by BLK (850) wire and it is energized when the Ignition Switch is in the RUN position. When the relay is energized, it provides Battery Voltage to the Rear Heater Switch. Fuse M2 (RR HEAT/A/C) provides Battery Voltage to RED (742) wire and the common contact of the A/C Relay (Rear). When the relay is energized the common contact and the normally open contact are connected which then provides power to the ORN (1923) wire which supplies the Rear Heater Switch.