Section 30 (HVAC Systems - Automatic)
WARNING: This page is about a different car, the 2004 Buick Regal and 2004 Buick Century. 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 B0332, B0333, B0337, or B0338: Outside Air Temperature Sensor Circuit
- DTC B0348: Sunload Temperature Sensor Open
- DTC B0361 or B0365: Actuator Feedback Short to GND
- DTC B0363 or B0367: Actuator Feedback Open
- DTC B0441 or B0446: Actuator Out of Range
- DTC P0530 (L36, L67): Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit
- DTC P0530 (LG8): Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit
- DTC P0645 (L36, L67): Short To Ground, Open Circuit, Or Short To Voltage On Control Circuit
- DTC P0645 (LG8): Short To Ground, Open Circuit, Or Short To Voltage On Control 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
- Too Hot in Vehicle
- Too Cold in Vehicle
- Air Delivery Improper
- Air Recirculation Malfunction
- Vacuum Control System Diagnostic
- Re-Calibrating Actuators
- Repair Instructions
- HVAC Control Module Replacement
- Blower Motor Control Processor Replacement
- Recirculation Actuator Replacement
- Mode Actuator Replacement
- Defroster Actuator Replacement
- Air Temperature Actuator Replacement - Right
- Air Temperature Actuator Replacement - Left
- Vacuum Control Assembly Replacement
- Vacuum Tank Replacement
- Aspirator Replacement
- Ambient Air Temperature Sensor Replacement
- Inside Air Temperature Sensor Replacement
- Sun Load Sensor Replacement
- Description and Operation
- Special Tools and Equipment