Diplomat L6-225 3.7L VIN E 1-bbl (1982)
Charge Temperature Sensor: Testing and Inspection
1. Turn ignition Off and disconnect wire from temperature switch.
2. Using an ohmmeter, connect one probe to a ground or to temperature switch ground terminal. Connect other probe to center terminal of switch.
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On a cold engine, there should be continuity with a resistance reading less than 100 ohms. If not, replace switch. The charge temperature
switch must be cooler than 60°F for this reading to be obtained.
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On a hot engine (at normal operating temperature), there should be no continuity. If there is continuity, replace temperature switch or charge
temperature switch.