The AC low pressure switch on a 2004 Pontiac Grand Am is typically located on the
accumulator/receiver drier. This component is part of the AC system's refrigeration cycle and is usually found near the firewall, on the passenger side (although it could vary slightly depending on specific trim level and options). It's often a small, cylindrical component with several wires leading to it.
However, without direct access to a repair manual specific to your 2004 Pontiac Grand Am, finding it precisely will require visual inspection. Be cautious as the refrigerant under pressure is dangerous if the system is compromised. It's best to consult a repair manual or have a qualified mechanic locate and service it.
