Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1512 (DTC INDEX)HVAC DTCS
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2
HVAC DTCS
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION HVAC DTCS
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
HVAC DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | DEFINITION |
|---|---|
| DTC P0530, P0532, or P0533 | Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit |
| DTC P0537 or P0538 | Evaporator Air Temperature Sensor Circuit Voltage |
| DTC P0645, P0646, or P0647 | Air Conditioning (A/C) Clutch Relay Control Circuit |
| DTC P2520 or P2521 | Air Conditioning (A/C) Request Circuit Voltage |
| DTC P255F | Air Conditioning (A/C) Request Circuit Performance |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.