Service Couplers
WARNING: This page is about a different car, the 2004 Nissan Maxima. 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. However, if an improper connection is attempted, discharging and contamination may occur.
SERVICE COUPLER OPERATION
| Shut-Off Valve Rotation | A/C Service Valve |
|---|---|
| Clockwise | Open |
| Counterclockwise | Close |