S6 Wagon L5-2226cc 2.22L DOHC Turbo (AAN) (1995)
Low Pressure Sensor / Switch: Service and Repair
Function
Switches A/C clutch -N25- OFF if system suction pressure is too low (low refrigerant charge). This switch protects the compressor if the refrigerant
system is empty.
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Switch located in right plenum.
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Switch opens (compressor OFF): 1.45 - 1.6 bar (21 - 23 psi).
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Switch closes (compressor ON): 2.9 - 3.4 bar (42 - 49 psi).
Removing And Installing
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Remove plenum tray.
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Remove electrical connector and unscrew low pressure switch -F73-. Refrigerant system remains closed (Schrader valve under switch).
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Install new O-ring -A- (8.9 mm x 1.8 mm), lubricate with refrigerant (PAG) oil and ensure proper seating in groove.
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Torque switch to 5 Nm (44 in lb).
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Install plenum tray.