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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 116 (Engine Controls - Self-Diagnostics - 2.2L) >> Diagnostic Tests >> DTC P0530: A/C Refrigerant Pressure Sensor Circuit >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2002 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

If DTC P1635 is also set, a short to ground on 5-volt reference circuit may exist. Diagnose P1635 first. See DTC P1635: 5-VOLT REFERENCE 1 CIRCUIT  .

If actual A/C pressure (measured with gauge) matches scan tool reading, repair any A/C problem before proceeding with this DTC. ECM will disable A/C clutch when this DTC is set.

To locate an intermittent problem, use scan tool to monitor A/C HIGH SIDE PRESS. SENSOR voltage with ignition on, engine off. Wiggling wires while watching for a change in A/C HIGH SIDE PRESS. SENSOR voltage may locate area where an open, short to ground or short to voltage in wiring could lie.

ECM will disable A/C relay is DTC P0530 is active.

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