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 MANUALSBUICK2006TERRAZA CXL, 3.5 L, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 253 (HVAC SYSTEM - MANUAL)DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC CODE INDEX
2006 Buick Terraza CXL, 3.5 L, AWD
Diagnostic Code Index
2006 Buick Terraza CXL, 3.5 L, AWDSECTION Diagnostic Code Index
WARNING: This page is about a different car, the 2007 Chevrolet Monte Carlo and 2007 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B0158 | Outside Air Temperature Sensor Circuit |
| DTC B0223, B0233, B0248, B0268, B0408, B0418, or B0428 | Recirculate Position Command Circuit & Actuator Stuck, Air Flow & Temperature Control 1 & 2 Circuits |
| DTC P0532 or P0533 | Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit Low & High Voltage |
| 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.