HVAC

All Component Locator

• HVAC Component Views
• HVAC Components

All Description and Operation

• Actuator Description
• Air Conditioning (A/C) Refrigerant Pressure Sensor Description
• Ambient Air Temperature Sensor Description
• Blower Motor Description
• Control Assembly Description
• Control Assembly Description - Passenger
• Dual Zone Air Conditioning (A/C) System Description
• HVAC Air Delivery/Temperature Control Circuit Description
• HVAC Blower Controls Circuit Description
• HVAC Compressor Controls Circuit Description
• HVAC Temperature Controls Circuit Description
• Inside Air Temperature Sensor Description
• Operating Modes
• Programmer Description
• Purge Mode Description
• Relays and Sensors Description
• Sun Load Temperature Sensor Description

All Special Tools and Equipment

• Special Tools

All Visual Identification

• HVAC Connector End Views

Diagnostic Procedures

• Air Delivery Improper
• Air Delivery Improper - Auxiliary
• Air Temperature Control Inoperative
• Air Temperature Display Inaccurate
• Blower Has High Speed Only
• Blower Motor Always On
• Blower Motor Inoperative at Any Speed
• Blower Motor Not Running - High Current Draw Key Off
• Blower Motor Speed Erratic
• Diagnostic Starting Point
• Diagnostic System Check
• Diagnostic Trouble Code (DTC) Clearing
• Diagnostic Trouble Code (DTC) Displaying
• HVAC Compressor Clutch Does Not Disengage
• HVAC Compressor Clutch Does Not Engage
• Symptoms

Diagnostic Trouble Codes

• Diagnostic Trouble Code (DTC) List/Type
• DTC B1310 Ambient Air Temperature Sensor Failure
• DTC B1317 In Car Air Temperature Sensor
• DTC B1318 LH Sun Load Sensor Fault
• DTC B1321 A/C Low Side Temperature Sensor Fault
• DTC B1324 A/C Refrigerant Overpressure
• DTC B1328 RH Sun Load Sensor Fault
• DTC B1330 Left A/C Discharge Sensor Fault
• DTC B1331 Right A/C Discharge Sensor Fault
• DTC B1332 Left Heater Discharge Sensor Fault
• DTC B1333 Right Heater Discharge Sensor Fault
• DTC B1340 Air Mix Door One Movement Fault
• DTC B1341 Air Mix Door Two Movement Fault
• DTC B1343 Air Inlet Door Movement Fault
• DTC B1344 HTR/DEF/AC Door Movement Fault
• DTC B1399 Loss of KDD Communications

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

• Cooling Insufficient - Air Conditioning (A/C) Inoperative

Mechanical Specifications

• Fastener Tightening Specifications

Other Specifications

• GM SPO Group Numbers

Removal, Installation, and Replacement

• Air Conditioning (A/C) Temperature Sensor Replacement
• Air Inlet Actuator Replacement
• Air Mix Actuator Replacement - Driver
• Air Mix Actuator Replacement - Passenger
• Ambient Temperature Sensor Replacement
• Auxiliary Mode Valve Actuator Replacement
• Blower Motor Control Module Replacement
• Heater Temperature Sensor Replacement
• Inside Air Temperature Sensor Replacement
• Mode Valve Actuator Replacement
• Sun Load Temperature Sensor Replacement