Manual HVAC Systems: Description
WARNING:
To avoid injury from accidental air bag deployment, read and carefully follow all SERVICE PRECAUTIONS and DISABLING & ACTIVATING AIR BAG SYSTEM procedures in AIR BAG SYSTEM SAFETY article in GENERAL SERVICING.
System is a cycling clutch type with a fixed orifice tube. Compressor clutch control system components include A/C cycling switch, A/C pressure cut-off switch, A/C pressure relief valve, Constant Control Relay Module (CCRM), and Powertrain Control Module (PCM). See Fig 1 and Figure . Manual A/C-heater system heats or cools vehicle interior depending on function selector position and temperature selected.