Description
Temperature sensor in the air conditioning for Citroën and Peugeot vehicles.
Overview
This HVAC temperature sensor (part number 6445JW) is used in the climate control system of selected Citroën and Peugeot models to provide precise temperature feedback to the climate control unit. A correctly functioning sensor ensures stable cabin temperature, efficient air conditioning operation and accurate automatic climate regulation. The part is commonly searched and identified by the code 6445JW.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Citroën C5; Citroën Xsara Picasso; Peugeot 307
- Product Codes: 6445JW
- Other Numbers: Not Specified
Fitment And Replacement
The sensor is typically mounted in the climate system (commonly on the evaporator housing or in the dashboard airflow path depending on model and year). Replacement generally requires removal of a small trim panel or access cover to reach the sensor connector and retaining clip. Typical replacement steps for a trained mechanic or competent DIYer:
- Isolate the vehicle electrical system (disconnect the negative battery terminal) and follow general safety procedures.
- Remove the required dash trim or glovebox components to access the sensor location.
- Disconnect the sensor electrical connector and release any retaining clips or screws.
- Remove the old sensor and install the new unit, ensuring correct orientation and secure mechanical fit.
- Reconnect the connector, reassemble removed trim, reconnect the battery and verify proper climate control operation.
Installation Recommendations
- Inspect Connector And Wiring: Check for corrosion, bent pins or damaged insulation. Clean or repair wiring as needed before installing the new sensor.
- Use Dielectric Grease: A small amount of dielectric grease on the connector pins helps prevent moisture-related faults.
- Secure Mounting: Ensure the sensor is seated properly and any seals or grommets are in place to avoid air leaks that could affect readings.
- Functional Check: After installation, run the climate control through heating and cooling cycles to confirm stable temperature feedback and absence of fault codes.
Why The Part Most Commonly Fails
Failures are usually caused by environmental and electrical issues rather than mechanical wear. Common reasons include moisture ingress and corrosion at the electrical connector, contamination from dust or debris, thermal stress and gradual sensor drift. Faulty wiring or poor grounding can also produce erroneous temperature readings. Symptoms of a failing sensor include incorrect cabin temperature regulation, frequent cycling of the air conditioning compressor, inability to reach set temperature or intermittent HVAC faults.
Notes For Mechanics And DIY Enthusiasts
This sensor is often searched by its part number 6445JW. When replacing, pay special attention to connector condition and routing of wiring harnesses to prevent chafing. Because climate systems vary by model year and equipment level, verify physical fitment on the vehicle before final assembly.
Common Search Terms
6445JW, Citroën temperature sensor, Peugeot temperature sensor, HVAC sensor, Climate Control Sensor.
