A/C Pressure Transducer Removal and Installation: Removal

Disconnect the negative battery cable.
Recover the refrigerant. Refer to Discharging, Adding Oil, Evacuating, and Charging Procedures for A/C System .
Release the connector lock and pull the transducer wire connector out.
Remove the transducer with a wrench.
Discard the O-ring seal.

Fig 1: Disassembled View Of A/C Pressure Transducer
Courtesy of SUZUKI OF AMERICA CORP.