Heater Core Sensor: Inspection
WARNING: This page is about a different variant/trim than selected.
- Check heater core sensor.
- Measure the resistance between connector terminals.CAUTION: During inspection, be careful not to touch the sensor end in order to avoid misjudgment due to body temperature.
Preparation tool:
Circuit tester
Terminal No. Inspection conditions Standard 1 - 2 -40°C (-40°F) 151.6 - 201.1 kΩ -35°C (-31°F) 109.9 - 142.7 kΩ -30°C (-22°F) 80.55 - 102.4 kΩ -25°C (-13°F) 59.69 - 74.44 kΩ -20°C (-4°F) 44.69 - 54.69 kΩ -15°C (5°F) 33.79 - 40.61 kΩ -10°C (14°F) 25.79 - 30.45 kΩ -5°C (23°F) 19.86 - 23.06 kΩ 0°C (32°F) 15.42 - 17.61 kΩ 5°C (41°F) 12.05 - 13.55 kΩ 10°C (50°F) 9.497 - 10.52 kΩ 15°C (59°F) 7.538 - 8.229 kΩ 20°C (68°F) 6.026 - 6.487 kΩ 25°C (77°F) 4.85 - 5.15 kΩ 30°C (86°F) 3.877 - 4.172 kΩ 35°C (95°F) 3.12 - 3.4 kΩ 40°C (104°F) 2.527 - 2.788 kΩ 45°C (113°F) 2.059 - 2.299 kΩ 50°C (122°F) 1.687 - 1.905 kΩ 55°C (131°F) 1.39 - 1.588 kΩ 60°C (140°F) 1.152 - 1.33 kΩ 65°C (149°F) 0.9587 - 1.119 kΩ 70°C (158°F) 0.8021 - 0.9457 kΩ 75°C (167°F) 0.6743 - 0.8029 kΩ 80°C (176°F) 0.5693 - 0.6846 kΩ 85°C (185°F) 0.4828 - 0.586 kΩ 90°C (194°F) 0.4112 - 0.5036 kΩ 95°C (203°F) 0.3516 - 0.4345 kΩ 100°C (212°F) 0.3017 - 0.3761 kΩ 105°C (221°F) 0.26 - 0.3268 kΩ 110°C (230°F) 0.2248 - 0.2849 kΩ 115°C (239°F) 0.195 - 0.2491 kΩ 120°C (248°F) 0.1697 - 0.2186 kΩ - Replace the heater core sensor if the inspection result is not within the standard value.
- Measure the resistance between connector terminals.