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 1428 (HVAC SYSTEMS - AUTOMATIC)
2004 Oldsmobile Bravada AWD
Section 1428 (HVAC Systems - Automatic)
2004 Oldsmobile Bravada AWDSECTION Section 1428 (HVAC Systems - Automatic)
WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic Wiring Diagrams
- HVAC Schematic Icons
- HVAC Wiring Schematics
- HVAC Schematics (Module Power, Ground, Serial Data, Blower Motor, & Coolant Bypass Valve)
- HVAC Schematics (Compressor Controls)
- HVAC Schematics (Air Delivery/Temperature Actuators)
- HVAC Schematics (Air Temperature Sensors)
- HVAC Schematics (Ambient Light/Sunload Sensor)
- HVAC Schematics (Rear Mode Control and Blower Motor Aux - Body Type VIN 3)
- HVAC Schematics (Rear HVAC with RSA-Body Type VIN 6)
- HVAC Schematics (Steering Wheel Controls)
- Component Locator
- HVAC Component Views
- Engine, Left Side
- Body Front End
- A/C Refrigerant Pressure Sensor
- Engine Compartment, Right Rear
- Coolant Bypass Valve (Body Type VIN 6)
- Instrument Panel Carrier
- Instrument Panel Carrier-Right Side
- Instrument Panel Carrier-Center Section
- Instrument Panel Carrier, Left and Right
- Instrument Panel Carrier, Cowl Side
- Instrument Panel Carrier-Air Duct
- Instrument Panel
- Instrument Panel, Center
- Steering Wheel Controls
- Lower I/P, Right Side
- Front Auxiliary Blower Motor Switch (Body Type VIN 6)
- B-Pillar, Left
- Lower Console
- HVAC Module-Auxiliary (Body Type VIN 6)
- Blower Motor Control Processor-Auxiliary (Long Wheelbase, Body Type VIN 6)
- HVAC Connector End Views
- A/C Compressor Clutch Assembly
- A/C Low Pressure Switch
- A/C Refrigerant Pressure Sensor
- Air Temperature Actuator - Auxiliary (Body Type VIN 6)
- Air Temperature Actuator - Left
- Air Temperature Actuator - Right
- Air Temperature Sensor - Lower Left
- Air Temperature Sensor - Lower Right
- Air Temperature Sensor - Upper Left
- Air Temperature Sensor - Upper Right
- Air Temperature Sensor Assembly - Inside
- Ambient Air Temperature Sensor
- Ambient Light/Sunload Sensor Assembly
- Blower Motor
- Blower Motor - Auxiliary (Body Type VIN 3)
- Blower Motor - Auxiliary (Body Type VIN 6)
- Blower Motor Control Module
- Blower Motor Control Processor - Auxiliary (Body Type VIN 6)
- Blower Motor Fuse - Auxiliary (Body Type VIN 6)
- Blower Motor Switch - Front Auxiliary
- Console Mode Actuator (Body Type VIN 6)
- Coolant Bypass Valve (Body Type VIN 6)
- Defrost Actuator
- HVAC Control Module C1
- HVAC Control Module C2
- HVAC Control Module - Auxiliary (Body Type VIN 3)
- HVAC Control Module- Auxiliary, with Rear Seat Audio (Body Type VIN 6)
- Mode Actuator
- Mode Actuator - Auxiliary (Body Type VIN 3)
- Mode Actuator - Auxiliary (Body Type VIN 6)
- Recirculation Actuator
- HVAC Component Views
- 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) Lists
- DTC B0145, B0428, or B3531: Actuator
- DTC B0150, B0433, OR B3782: Feedback Circuit Malfunction
- DTC B0159 or B0164: Air Temperature Sensor Circuit
- DTC B0174, B0179, B0510, or B0515: Discharge Air Temperature Sensor Circuit
- DTC B0183 or B0188: Sunload Sensor Circuit
- DTC B0229, B0414, B0424, B3761, or B3770: HVAC Actuator Circuit
- DTC B0248, B0263, B0268, B0408, or B0418: HVAC Actuator Circuit
- DTC B1375: Device Ignition 3 (ON) Circuit
- DTC B2815: Steering Wheel Controls Illegal Resistance Value
- DTC P0530: Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit
- 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 Valve Actuator Replacement
- Defroster Actuator Replacement
- Air Temperature Actuator Replacement - Right
- Air Temperature Actuator Replacement - Left
- Air Temperature Actuator Replacement - Auxiliary
- 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
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
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Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.