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Heater Core Temperature Sensor

NOTE: Heater core temperature sensor should be removed from heater assembly before testing. See HEATER CORE TEMPERATURE SENSOR  under REMOVAL & INSTALLATION.

Using an ohmmeter, test all sensor terminals listed in HEATER CORE TEMPERATURE SENSOR RESISTANCE VALUES  table. Replace sensor if resistance is not within test values.

HEATER CORE TEMPERATURE SENSOR RESISTANCE VALUES

Temperature - F°(C°) Ohms
212 (100) 580-770
140 (60) 2190-2780
77 (25) 9000-11,000
68 (20) 11,130-13,830
32 (0) 28,890-36,400
14 (-10) 48,580-62,080
-4 (-20) 84,390-109,610