HVAC

All Component Locator

• HVAC Component Views
• HVAC Components

All Description and Operation

• Ambient Air Temperature Sensor Description
• Automatic Air Conditioning (A/C) System Description
• Blower Control Module Description
• Control Assembly Description
• Dual Zone Air Conditioning (A/C) System Description
• Inside Air Temperature Sensor Description
• Sun Load Temperature Sensor Description
• Vacuum Electrical Solenoid Description

All Special Tools and Equipment

• Special Tools

All Visual Identification

• HVAC Connector End Views

Diagnostic Procedures

• Air Delivery Improper
• Air Recirculation Always On
• Air Recirculation Inoperative
• Air Recirculation Malfunction
• Air Temperature Control Inoperative
• Air Temperature Control Inoperative - Passenger
• Blower Motor Always On
• Blower Motor Inoperative
• Blower Motor Inoperative at Any Speed
• Blower Motor Inoperative in Auto Mode
• Blower Motor Malfunction
• Defrost Air Inoperative
• Diagnostic Starting Point
• Diagnostic System Check
• Heated Air Inoperative
• HVAC Compressor Clutch Does Not Disengage
• HVAC Compressor Clutch Does Not Engage
• Instrument Panel Outlets Inoperative
• Symptoms
• Symptoms - HVAC Systems - Automatic
• Too Cold in Vehicle
• Too Hot in Vehicle

Diagnostic Trouble Codes

• DTC B0332 Outside Air Temp Sensor Short to Ground
• DTC B0333 Outside Air Temperature Sensor Open
• DTC B0337 Inside Air Temp Sensor Short to GND
• DTC B0338 Inside Air Temperature Sensor Open
• DTC B0348 Sunload Temperature Sensor Open
• DTC B0361 Left Actuator Feedback Short to GND
• DTC B0363 Left Actuator Feedback Open
• DTC B0365 Right Actuator Feedback Short to GND
• DTC B0367 Right Actuator Feedback Open
• DTC B0441 Left Actuator Out of Range
• DTC B0446 Right Actuator Out of Range
• DTC Table

Electrical/Electronic Schematic Diagrams

• HVAC Air Delivery/Temperature Control Schematics
• HVAC Blower Control Schematics
• HVAC Compressor Control Schematics
• HVAC Schematic Icons

Electrical/Electronic Specifications

• Sensor Resistance Table

General Diagnostic Information

• Vacuum Test

Mechanical Specifications

• Fastener Tightening Specifications

Other Specifications

• GM SPO Group Numbers

Removal, Installation, and Replacement

• Air Inlet Actuator Replacement
• Ambient Temperature Sensor Replacement
• Blower Motor Control Module Replacement
• Control Assembly Replacement
• Defroster Valve Actuator Replacement
• Inside Air Temperature Sensor Replacement
• Mode Valve Actuator Replacement
• Sun Load Temperature Sensor Replacement
• Temperature Actuator Replacement
• Vacuum Electrical Solenoid Replacement