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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 988 (HVAC System - Manual) >> Diagnostic Information and Procedures >> DTC P0532 or P0533 >> Circuit/System Verification

Circuit/System Verification

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Ignition ON, observe the scan tool A/C Pressure Sensor parameter. The reading should be between 0.1 volts (1 psi) and 4.90 volts (425 psi) and change with A/C refrigerant pressure changes.

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