Circuit/System Description
WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
For an overview of the component/system, refer to:Automatic HVAC Description and Operation
| Circuit | Description |
|---|---|
| 5 V Reference | Regulated voltage supplied by the control module. |
| Signal - A/C High Side Pressure Sensor | The control module input circuit has an internal resistance connected to ground. |
| Low Reference | Grounded through the control module. |
| Component | Description |
|---|---|
| B1 A/C Refrigerant Pressure Sensor | The pressure sensor is a 3 wire piezoelectric pressure transducer. |
| K20 Engine Control Module | The control module contains a microprocessor used to process input data to control outputs. |