Circuit/System Verification
WARNING: This page is about a different car, the 2009 Pontiac Torrent and 2009 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON, observe the scan tool A/C High Side Pressure Sensor parameter, the reading should be between 2929-269 kPa (425-39 psi).
- If the reading is not within the specified range, refer to A/C Refrigerant Pressure Sensor Malfunction .
- Observe the function of the HVAC compressor while commanding the A/C relay ON and OFF with a scan tool, the A/C compressor clutch should engage and disengage when changing between the commanded states.
- If the A/C compressor does not engage or does not disengage, refer to A/C Compressor Malfunction .