Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Humidity/In-Car Temperature Sensor
The humidity/in-car temperature sensor has a humidity sensor and an in-car temperature sensor. The climate control unit receives humidity information from the sensor to help control A/C compressor operation. When it is humid, the climate control unit operates an A/C compressor to prevent a windshield from being fogged. When the humidity is low enough, the climate control unit reduces the operating time for A/C compressor. A flexible hose connects the sensor case to an aspirator on the HVAC unit to detect the accuracy of temperature and humidity.
NOTE: This illustration is an example only. Appearance and structure of the actual parts may vary depending on the model.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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