Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

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Link: lemon-manuals.la

In-Vehicle Sensor

IN-VEHICLE SENSOR







The in-vehicle sensor detects the cabin temperature and sends an electric signal corresponding to the temperature to the A/C control module.
This sensor consists of an aspirator and a thermistor, the resistance of which changes in inverse proportion to the temperature. The aspirator operates by a vacuum generated in the heater unit (only when the blower unit is turned on).