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 MANUALSPONTIAC2008GRAND PRIX BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 213 (HVAC SYSTEM - AUTOMATIC)DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC CODE INDEX
2008 Pontiac Grand Prix Base
Diagnostic Code Index
2008 Pontiac Grand Prix BaseSECTION Diagnostic Code Index
WARNING: This page is about a different car, the 2007 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B0159, B0164, B0174, B0179, B0510, or B0515 | Air Temperature Sensors Circuit Range/Performance |
| DTC B0184 or B0189 | Sunload Sensor 1-2 Circuit Performance |
| DTC B0249, B0269, B0409, or B0419 | Air Flow Control 3 & 7/Temperature Control 1-2 Circuit Range |
| DTC B0414, B0424, B3748, or B3749 | Air Flow Control 3 & 7/Temperature Control 1-2 Circuit |
| DTC P0530 | Air Conditioning Refrigerant Pressure Sensor Circuit |
| DTC P0645 | Air Conditioning Clutch Relay Control Circuit |
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.