5000CS Turbo L5-2226cc 2.22L SOHC Turbo (MC) (1987)
Evaporator Temperature Sensor / Switch: Description and Operation
A/C Thermostat
Purpose and Operation
The thermostat measures the temperature of the evaporator via a capillary tube. It controls the power supply to the pull-in coil (terminal 86) of the
compressor clutch relay.
When evaporator temperature falls below 32°F (0°C), the thermostat switch will open. The compressor clutch relay will then open and switch the
compressor off to prevent evaporator "ice-up"