Service Couplers

WARNING: This page is about a different car, the 2002 Nissan Sentra. 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 an 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.

Fig 1: A/C Service Valve Operation Chart

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Identifying Service Couplers

Courtesy of NISSAN MOTOR CO., U.S.A.