This OEM-style A/C Pressure & Temperature (PT) Sensor monitors both refrigerant pressure and temperature on the high-pressure side of the HVAC / heat pump system in Tesla Model 3 and Model Y. It feeds critical data to the thermal controller so the car can manage cabin cooling, battery cooling, and heat pump operation. A faulty PT sensor can cause loss of A/C, reduced fast-charging performance, or thermal system fault messages.
| Technical Specifications & Fitment | |
|---|---|
| Tesla OEM PN | 1581610-00-B (high-pressure refrigerant PT sensor), often superseded by later revisions (e.g., 1581610-00-C or later). |
| Vehicle Fitment | Tesla Model 3 2017–2024 (all trim levels, heat pump and non–heat pump where equipped) and Tesla Model Y 2020–2024 with compatible thermal system. Verify by VIN for exact fit. |
| Function | Measures refrigerant pressure and temperature on the high-pressure side of the HVAC / heat pump circuit and reports to the thermal controller for system regulation and protection. |
| Location | Mounted on the high-pressure refrigerant line or at the supermanifold assembly at the front of the vehicle (location varies slightly by build/heat pump configuration). |
| Torque Spec | Approx. 9 Nm (6.6 lb-ft) using a dedicated PT sensor socket. Always follow the latest Tesla service manual specification for your VIN. |
| Included | High-pressure PT sensor only. O-ring, A/C refrigerant, and any additional hardware or harness repairs are not included and should be sourced separately. |
| Related P/T sensors (sold separately) | Low-pressure PT sensor (1581608-00-B or later) and subcool high-pressure PT sensor (1510047-00-C or later) on some Model 3/Y heat-pump systems. |
| Installation Notes | Requires proper A/C refrigerant recovery and recharge. Sensor threads and O-ring must be lubricated with correct A/C oil, then tightened with a PT sensor socket to spec. Professional HVAC/EV service recommended. |
Replacing a PT sensor is not just a “plug-and-play” operation. The system must be placed in Service Mode, refrigerant properly recovered and recharged with an A/C machine, and the thermal system checked for additional faults. For best results, have this sensor installed and the system verified by a Tesla-experienced EV shop such as Gruber Motors.
Maintenance tip: Whenever a PT sensor is replaced, always install a new O-ring lubricated with the correct A/C oil, torque the sensor with the proper socket, and perform an A/C leak test and vacuum pull before recharging. Skipping these steps can lead to repeat leaks, incorrect readings, and recurring HVAC or battery-cooling issues.
Need help confirming fitment? Contact Gruber Motors at 623.433.8500 with your VIN for compatibility checks or to schedule professional installation and A/C service.
