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 MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1656 (HVAC SYSTEMS - AUTOMATIC)
2004 Oldsmobile Bravada AWD
Section 1656 (HVAC Systems - Automatic)
2004 Oldsmobile Bravada AWDSECTION Section 1656 (HVAC Systems - Automatic)
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic and Routing Diagrams
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic System Check - HVAC Systems - Automatic
- Scan Tool Output Controls
- Scan Tool Data List
- Scan Tool Data Definitions
- Diagnostic Trouble Code (DTC) List
- DTC B0159
- DTC B0164
- DTC B0174
- DTC B0179
- DTC B0184
- DTC B0229
- DTC B0248
- DTC B0268
- DTC B0408
- DTC B0414
- DTC B0429
- DTC B0434
- DTC B1020
- DTC B3531
- DTC B3579
- DTC B3584
- DTC B3761
- DTC B3764
- DTC U1500
- Symptoms - HVAC Systems - Automatic
- HVAC Compressor Clutch Does Not Engage
- HVAC Compressor Clutch Does Not Disengage
- Blower Motor Always On
- Blower Motor Inoperative
- Blower Motor Malfunction
- Blower Motor Always On - Auxiliary (W/O Sunroof)
- Blower Motor Always On - Auxiliary (W/Sunroof or Heat Only)
- Blower Motor Inoperative - Auxiliary (W/O Sunroof)
- Blower Motor Inoperative - Auxiliary (W/Sunroof or Heat Only)
- Blower Motor Malfunction - Auxiliary (W/O Sunroof)
- Blower Motor Malfunction - Auxiliary (W/Sunroof or Heat Only)
- Too Hot in Vehicle
- Too Cold in Vehicle
- Too Hot in Vehicle - Auxiliary (w/o Sunroof)
- Too Hot in Vehicle - Auxiliary (w/ Sunroof)
- Too Cold in Vehicle - Auxiliary (w/o sunroof)
- Too Cold in Vehicle - Auxiliary (w/ sunroof)
- Air Delivery Improper
- Air Delivery Improper - Auxiliary (W/O Sunroof)
- Air Delivery Improper - Auxiliary (W/Sunroof)
- Air Recirculation Malfunction
- Outside Air Temperature Display Inaccurate or Inoperative
- Re-Calibrating Actuators
- Repair Instructions
- HVAC Control Module Replacement
- HVAC Control Assembly Replacement - Front Auxiliary
- HVAC Control Module Replacement - Auxiliary
- Blower Motor Control Processor Replacement
- Blower Motor Processor Replacement - Auxiliary
- Recirculation Actuator Replacement
- Mode Actuator Replacement (W/O D07)
- Mode Actuator Replacement (W/ D07)
- Air Temperature Actuator Replacement
- Air Temperature Actuator Replacement - Auxiliary
- Mode Actuator Replacement - Auxiliary (Tahoe/Yukon)
- Mode Actuator Replacement - Auxiliary (Suburban/Yukon XL)
- Air Temperature Sensor Replacement - Upper
- Air Temperature Sensor Replacement - Upper Auxiliary
- Air Temperature Sensor Replacement - Lower
- Air Temperature Sensor Replacement - Lower Auxiliary
- Ambient Air Temperature Sensor Replacement
- Inside Air Temperature Sensor Replacement
- Sun Load Sensor Replacement
- Description and Operation
- Air Delivery Description and Operation
- Notes
- HVAC Control Components
- Air Speed-Front Control
- Air Speed-Manual Auxiliary HVAC Control
- Air Speed-Automatic Auxiliary HVAC Control
- Air Distribution-Front Control
- Air Distribution-Manual Auxiliary HVAC Control
- Air Distribution-Automatic Auxiliary HVAC Control
- Recirculation Operation
- Auxiliary HVAC Configurations
- Automatic Operation
- Air Temperature Description and Operation
- Air Delivery Description and Operation
- Special Tools and Equipment
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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.