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 2088 (HVAC SYSTEM - AUTOMATIC)DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC CODE INDEX
2006 Chevrolet Suburban K2500, 6.0 U
Diagnostic Code Index
2006 Chevrolet Suburban K2500, 6.0 USECTION Diagnostic Code Index
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B0158, B0163, B0168, B0173, B0178, B0509, B0514, B3578, or B3583 | DTC B0158 02 Outside Air Temperature Sensor Circuit Short to Ground DTC B0158 05 Outside Air Temperature Sensor Circuit Short to Battery or Open DTC B0163 02 Passenger Compartment Temp Sensor 1 Circuit Short to Ground DTC B0163 05 Passenger Compartment Temp Sensor 1 Circuit Short to Battery or Open DTC B0168 02 Passenger Compartment Temp Sensor 2 Circuit Short to Ground DTC B0168 05 Passenger Compartment Temp Sensor 2 Circuit Short to Battery or Open DTC B0173 02 Output Air Temperature Sensor 1 Circuit Short to Ground DTC B0173 05 Output Air Temperature Sensor 1 Circuit Short to Battery or Open DTC B0178 02 Output Air Temperature Sensor 2 Circuit Short to Ground DTC B0178 05 Output Air Temperature Sensor 2 Circuit Short to Battery or Open DTC B0509 02 Output Air Temperature Sensor 3 Circuit Short to Ground DTC B0509 05 Output Air Temperature Sensor 3 Circuit Short to Battery or Open DTC B0514 02 Output Air Temperature Sensor 4 Circuit Short to Ground DTC B0514 05 Output Air Temperature Sensor 4 Circuit Short to Battery or Open DTC B3578 02 Output Air Temperature Sensor 6 Circuit Short to Ground DTC B3578 05 Output Air Temperature Sensor 6 Circuit Short to Battery or Open DTC B3583 02 Output Air Temperature Sensor 7 Circuit Short to Ground DTC B3583 05 Output Air Temperature Sensor 7 Circuit Short to Battery or Open |
| DTC B0183 or B0188 | DTC B0183 02 Solar Load Sensor 1 Circuit Short to Ground DTC B0183 05 Solar Load Sensor 1 Circuit Short to Battery or Open DTC B0188 02 Solar Load Sensor 2 Circuit Short to Ground DTC B0188 05 Solar Load Sensor 2 Circuit Short to Battery or Open |
| DTC B0228, B0413, B0423, B0433, B3779, or B3782 | B0228 02 Recirculation Position Feedback Circuit Short to Ground B0228 04 Recirculation Position Feedback Circuit Open B0228 05 Recirculation Position Feedback Circuit Short to Battery or Open B0228 61 Recirculation Position Circuit Actuator Stuck B0413 02 Temperature Control 1 Feedback Circuit Short to Ground B0413 04 Temperature Control 1 Feedback Circuit Open B0413 05 Temperature Control 1 Feedback Circuit Short to Battery or Open B0413 61 Temperature Control 1 Feedback Circuit Actuator Stuck B0423 02 Temperature Control 2 Feedback Circuit Short to Ground B0423 04 Temperature Control 2 Feedback Circuit Open B0423 05 Temperature Control 2 Feedback Circuit Short to Battery or Open B0423 61 Temperature Control 2 Circuit Actuator Stuck B0433 02 Temperature Control 3 Feedback Circuit Short to Ground B0433 04 Temperature Control 3 Feedback Circuit Open B0433 05 Temperature Control 3 Feedback Circuit Short to Battery or Open B0433 61 Temperature Control 3 Circuit Actuator Stuck B3779 02 Air Flow Control 9 Feedback Circuit Short to Ground B3779 04 Air Flow Control 9 Feedback Circuit Open B3779 05 Air Flow Control 9 Feedback Circuit Short to Battery or Open B3779 61 Air Flow Control 9 Circuit Actuator Stuck B3782 02 Air Flow Control 10 Feedback Circuit Short to Ground B3782 04 Air Flow Control 10 Feedback Circuit Open B3782 05 Air Flow Control 10 Feedback Circuit Short to Battery or Open B3782 61 Air Flow Control 10 Circuit Actuator Stuck |
| DTC B1023 | DTC B1023 05 Integral Switch Performance Short to Ground DTC B1023 06 Integral Switch Performance Short to Battery or Open DTC B1023 61 Integral Switch Performance Signal Invalid |
| DTC B3844 | DTC B3844 Heater Core Pump Circuit |
| DTC B3933 | DTC B3933 02 A/C Evaporator Air Temperature Sensor Short to Ground DTC B3933 05 A/C Evaporator Temperature Sensor Circuit Short to Battery or Open |
| DTC P0532 or P0533 | DTC P0532 Air Conditioning A/C Refrigerant Pressure Sensor Circuit Low Voltage DTC P0533 Air Conditioning A/C Refrigerant Pressure Sensor Circuit High Voltage |
| DTC P0645 | DTC P0645 A/C Clutch Relay Control Circuit |
| DTC P2518 | DTC P2518 11 A/C Refrigerant Low Side Fluid Pressure Sensor Circuit Above Maximum Threshold DTC P2518 12 A/C Refrigerant Low Side Fluid Pressure Sensor Circuit Below Minimum Threshold |
RENDER: 1.0x
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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.