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 1427 (HVAC SYSTEMS - MANUAL)
2004 Oldsmobile Bravada AWD
Section 1427 (HVAC Systems - Manual)
2004 Oldsmobile Bravada AWDSECTION Section 1427 (HVAC Systems - Manual)
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 and Routing Diagrams
- Component Locator
- HVAC Component Views
- Engine, Left Side
- A/C Refrigerant Pressure Sensor
- Engine Compartment, Right Rear
- Coolant Bypass Valve (Body Type VIN 6)
- Instrument Panel Carrier
- Instrument Panel Carrier, Left and Right
- Instrument Panel Carrier, Cowl Side
- Instrument Panel, Center
- Lower I/P, Right Side
- Front Auxiliary Blower Motor Switch (Body Type VIN 6)
- 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
- Blower Motor
- Blower Motor-- Auxiliary (Body Type VIN 6)
- Blower Motor Control Processor - Auxiliary (Body Type VIN 6)
- Blower Motor Fuse - Auxiliary (Body Type VIN 6)
- Blower Motor Resistor Assembly
- Blower Motor Switch - Front Auxiliary (Body Type VIN 6)
- 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)
- Control Module-- Auxiliary (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 - Manual
- Scan Tool Output Controls
- Scan Tool Data List
- DTC B0145, B0428, or B3531: Auxiliary HAVC Actuator Circuit
- DTC B0248, B0263, B0408, or B0418: HVAC Actuator Circuit
- DTC B0414, B0424, B3761, or B3770: HVAC Actuator Circuit
- DTC B1375: Device Ignition 3 (ON) Circuit
- DTC P0530: Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit
- Symptoms - HVAC Systems - Manual
- 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 Inoperative - Auxiliary (Body Type VIN 3)
- Too Hot in Vehicle
- Too Cold in Vehicle
- Too Hot in Vehicle - Auxiliary
- Too Cold in Vehicle - Auxiliary
- Air Delivery Improper
- Air Delivery Improper - Auxiliary (With Body Type VIN 3)
- Air Delivery Improper - Auxiliary (With Body Type VIN 6)
- Air Recirculation Malfunction
- Vacuum Control System Diagnostic
- Re-Calibrating Actuators (Primary)
- Re-Calibrating Actuators (Auxiliary HVAC)
- Repair Instructions
- HVAC Control Module Replacement
- Air Temperature Actuator Replacement - Right
- Air Temperature Actuator Replacement - Left
- Defroster Actuator Replacement
- Mode Valve Actuator Replacement
- Recirculation Actuator Replacement
- HVAC Control Module Replacement Auxiliary
- Front Auxiliary Blower Motor Switch Replacement
- Air Temperature Actuator Replacement - Auxiliary
- Mode Actuator Replacement - Console
- Mode Actuator Replacement - Auxiliary
- Description and Operation
- Air Delivery Description and Operation
- Notes
- HVAC Control Components
- HVAC Control Module
- Auxiliary HVAC Control Module
- Defrost Actuator
- Mode Actuator
- Auxiliary Mode Actuator
- Auxiliary Console Mode Actuator
- Air Speed - Front Control
- Low Blower Speed
- Medium Blower Speeds
- High Blower Speed
- Air Speed - Auxiliary
- Air Distribution
- Front Defrost
- Air Distribution - Auxiliary Control
- Recirculation Operation
- Air Temperature Description and Operation
- Air Delivery Description and Operation
- Special Tools and Equipment
RENDER: 1.0x
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Recommended Tools & Savings
Use the Manual With the Right Hardware
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.