5000CS Turbo L5-2226cc 2.22L SOHC Turbo (MC) (1987)
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Low Pressure Sensor / Switch: Description and Operation
Low Pressure Switch
Purpose and Operation
A low pressure switch is used on the suction line from the accumulator. This switch will open if the low side pressure falls below approximately 15
PSI (1 bar). This will interrupt the power supply to the A/C compressor to prevent it from being damaged.
The switch no longer must be removed to gain access to a low pressure service port. A service port is now located on the A/C compressor suction
fitting. The terminals on the low pressure switch should, however, be bridged when servicing the system.
