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 101 (HVAC SYSTEMS - AUTOMATIC)
2004 Oldsmobile Bravada AWD
Section 101 (HVAC Systems - Automatic)
2004 Oldsmobile Bravada AWDSECTION Section 101 (HVAC Systems - Automatic)
WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic Wiring 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 B0145, B0428, or B3531
- DTC B0150, B0433, Or B3782: Feedback Circuit Malfunction
- DTC B0159 or B0164
- DTC B0174, B0179, B0510, or B0515
- DTC B0183 or B0188
- DTC B0229, B0414, B0424, B3761, or B3770
- DTC B0248, B0263, B0268, B0408, or B0418
- DTC B1375
- DTC B2815
- DTC P0530
- 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 (Body Type VIN 3)
- Blower Motor Always On - Auxiliary (Body Type VIN 6)
- Blower Motor Inoperative - Auxiliary (Body Type VIN 3)
- Blower Motor Inoperative - Auxiliary (Body Type VIN 6)
- Blower Motor Malfunction - Auxiliary (Body Type VIN 3)
- Blower Motor Malfunction - Auxiliary (Body Type VIN 6)
- Too Hot in Vehicle
- Too Cold in Vehicle
- Too Hot in Vehicle - Auxiliary (VIN 3)
- Too Hot in Vehicle - Auxiliary (VIN 6)
- Too Cold in Vehicle - Auxiliary (VIN 3)
- Too Cold in Vehicle - Auxiliary (VIN 6)
- Air Delivery Improper
- Air Delivery Improper - Auxiliary (Body Type VIN 3)
- Air Delivery Improper - Auxiliary (Body Type VIN 6)
- Air Recirculation Malfunction
- Steering Wheel Controls Inoperative
- Vacuum Control System Diagnostic
- Ambient Air Temperature Update Procedure
- Re-Calibrating Actuators (Primary)
- Re-Calibrating Actuators (Auxiliary HVAC)
- Repair Instructions
- HVAC Control Module Replacement
- HVAC Control Module Replacement - Auxiliary
- Blower Motor Control Processor Replacement
- Front Auxiliary Blower Motor Switch Replacement
- Blower Motor Processor Replacement - Auxiliary
- Recirculation Actuator Replacement
- Mode Actuator Replacement
- Defroster Actuator Replacement
- Air Temperature Actuator Replacement - Right
- Air Temperature Actuator Replacement - Left
- Air Temperature Actuator Replacement - Auxiliary
- Mode Cam Replacement
- Mode Actuator Replacement - Console
- Mode Actuator Replacement - Auxiliary
- Air Temperature Sensor Replacement - Upper Right
- Air Temperature Sensor Replacement - Upper Left
- Air Temperature Sensor Replacement - Lower Left
- Air Temperature Sensor Replacement - Lower Right
- Inside Air Temperature Sensor Assembly Replacement
- Sun Load Sensor Replacement
- Description and Operation
- Air Delivery Description and Operation
- Air Temperature 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.