HVAC

All Component Locator

• HVAC Component Views
• HVAC Components

All Description and Operation

• Actuator Description
• Air Conditioning (A/C) Refrigerant Pressure Sensor Description
• Air Conditioning (A/C) System Description
• Control Assembly Description
• HVAC Air Delivery/Temperature Control Circuit Description
• HVAC Blower Controls Circuit Description
• HVAC Compressor Controls Circuit Description
• Operating Modes

All Special Tools and Equipment

• Special Tools

All Visual Identification

• HVAC Connector End Views

Diagnostic Procedures

• Air Delivery Improper
• Blower Motor Does Not Operate Properly
• Cooling Insufficient - Air Conditioning (A/C) System
• Defrosting Insufficient
• Diagnostic Starting Point
• HVAC Compressor Clutch Does Not Disengage
• HVAC Compressor Clutch Does Not Engage
• Improper Control Response
• Symptoms
• Temperature Variation Between Driver and Passenger Outlets
• Too Cool in Car

Diagnostic Trouble Codes

• DTC B0233 Air Mix Door Circuit Range
• DTC B0238 Mode Door Circuit Range
• DTC B0268 Air Inlet Door Circuit Range
• DTC P1536 Engine Coolant Overtemperature - Air Conditioning (A/C) Disabled
• DTC P1540 Air Conditioning (A/C) Refrigerant Overpressure - Air Conditioning (A/C) Disabled
• DTC Table

Electrical/Electronic Schematic Diagrams

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

General Diagnostic Information

• Diagnostic System Check
• Scan Tool Data Definitions
• Scan Tool Data List

Mechanical Specifications

• Fastener Tightening Specifications

Other Specifications

• GM SPO Group Numbers

Removal, Installation, and Replacement

• Air Inlet Actuator Replacement
• Control Assembly Replacement
• Mode Valve Actuator Replacement
• Temperature Actuator Replacement