XJ-6 (X300) L6-4.0L (AJ16) (1996)
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Control Module HVAC: Description and Operation
General Description
General Description
The climate control system peripherals communicate with the A/CCM via three main device categories, plus the vehicle power supply and ground
connections.
Manual inputs
Control panel
Face Vent Temperature Control
Automatic inputs
Temperature and solar sensors
Flap servo motor potentiometers
Current sensing & coolant flow valve
Power transistor feedback (fan speed control)
Compressor lock sensor (12 cylinder only)
Compressor voltage input
Instrument pack (coolant temp & road speed) (engine revolutions via engine control module)
Refrigerant pressure cut-out switch
Outputs
Blower motors (Left & Right) & associated relays
Flap servo motors
Heated front/rear screens & exterior mirror relays
Motorized in-car aspirator
Compressor clutch request to engine control module (not heater-only cars)
Circulation pump relay
Coolant flow valve
