Air Conditioning (A/C) - K Series and KV6

DESCRIPTION

General
The air conditioning (A/C) system will only operate when the engine is running. The A/C system is switched on and off by pressing the switch mounted on the centre console. When the switch is pressed, an LED mounted within the switch illuminates to inform the driver the system is operational.

The position of the rotary heater control determines the amount of warm air from the heater matrix blended with cool air from the A/C evaporator, and hence the temperature of the air output from the heater ducts.

NOTE: The blower switch must be in at least position 1 for the A/C system to operate.

The A/C system is automatically switched on when either the screen or screen/feet positions are selected via the rotary distribution control knob.

NOTE: The A/C LED will not illuminate under these conditions.

OPERATION

General
Feed from the positive battery terminal (C0192) is supplied to fusible link 1, fusible link 5, and the main relay (C0632) on an R wire. All are located within the engine compartment fuse box.

The earth path for the main relay coil (C0576 on K Series vehicles, C0578 on KV6 vehicles) is controlled by the Engine Control Module (ECM) (C0913 on K Series vehicles, C0371 on KV6 vehicles) on a WK wire. The energised main relay provides a feed to fuse 4, which is also located in the engine compartment fuse box.