PL720 2WD L4-2187cc 2.2L SOHC (Z22) (1982)
Multi-Function Thermal Sensor / Switch: Testing and Inspection
1.
Remove switch and sensor from evaporator case and connect ohmmeter to switch terminals.
2.
Immerse switch sensor in an ice bath solution and gradually lower temperature of solution.
3.
Above 37-41 deg. F, meter should indicate continuity. Below 28-32 deg. F, meter should indicate no continuity.