Service Couplers
WARNING: This page is about a different car, the 2005 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
Never attempt to connect HFC-134a (R-134a) service couplers to a CFC-12 (R-12) A/C system. The HFC-134a (R-134a) couplers will not properly connect to the CFC-12 (R-12) system. If an improper connection is attempted, discharging and contamination may occur.
A/C SERVICE VALVE OPERATION TABLE
| Shut-off valve rotation | A/C service valve |
|---|---|
| clockwise | Open |
| counterclockwise | Close |