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 MANUALSCHEVROLET2006SUBURBAN K2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1411 (DTC INDEX)HVAC, AUTOMATIC DTCS
2006 Chevrolet Suburban K2500, 6.0 U
HVAC, Automatic DTCS
2006 Chevrolet Suburban K2500, 6.0 USECTION HVAC, Automatic DTCS
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
HVAC - AUTOMATIC DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| DTC B0159 or B0164 | Air Temperature Sensor Voltage |
| DTC B0174, B0179, B0510, or B0515 | Air Temperature Parameter Counts |
| DTC B0183 or B0188 | Sunload Sensor Signal Counts |
| DTC B0229, B0414, B0424, or B3770 | Actuator |
| DTC B0263, B0268, B0408, or B0418 | Actuator Position |
| DTC B1375 | No Voltage On The Ignition 3 Voltage Input |
| DTC P0530 | A/C Refrigerant Pressure Sensor Signal Voltage |
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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.