Section 136 (HVAC Systems - Manual)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. 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 - Manual
- Scan Tool Output Controls
- Scan Tool Data List
- Scan Tool Data Definitions
- Diagnostic Trouble Code (DTC) 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 6)
- Blower Motor Inoperative - Auxiliary (Body Type VIN 6)
- Blower Motor Malfunction - Auxiliary (Body Type VIN 6)
- 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 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
- Air Temperature Description and Operation
- Special Tools and Equipment