Refrigerant Pressure Sensor / Switch: Service and Repair

CAUTION: A/C pressure transducer switch connector terminal contacts can be damaged by probing tools during system diagnosis and repair. Failure to use their respective mating terminals or pin gauge to check for tightness will cause contact beam spreads. This will result in loss of continuity.

O-ring replacement is required whenever the pressure transducer is serviced. Be sure to use the O-ring specified for this vehicle.

The A/C pressure transducer is screwed on to a valve on the discharge line. The transducer can be removed or installed without evacuating the refrigerant from the A/C system.

REMOVAL

Negative Battery Cable Remote Terminal:

1. Open hood and disconnect the negative battery cable remote terminal from the remote battery post.
2. Disconnect the wire harness connector from the A/C pressure transducer.

CAUTION: A slight release of pressure trapped in the fitting may be experienced. It is not necessary to discharge the refrigerant system.

3. Remove the transducer with a counterclockwise rotation using a 14 mm open-end wrench.

INSTALLATION
For installation, reverse the above procedures. Tighten pressure transducer to 6 N.m (50 in. lbs.).