Civic L4-1590cc 1.6L SOHC (VTEC) (1992)
Evaporator Temperature Sensor / Switch: Testing and Inspection
A/C Thermo Switch
Dip A/C thermo switch into a pan filled with ice water, and check for continuity between the terminals.
Cut off: 1.5 - -O.5°C (35-33°F)
Cut in: 2.5 - 5°C (36 - 41°F)
If cut off or cut in temperature is too low or too high, replace the thermo switch.