HVAC

All Component Locator

• HVAC Component Views
• HVAC Components

All Description and Operation

• Accumulator Description
• Actuator Description
• Air Conditioning (A/C) Refrigerant Pressure Sensor Description
• Air Conditioning (A/C) System Description
• Air Distribution System Description
• Ambient Air Temperature Sensor Description
• Blower Control Module Description
• Blower Motor Description
• Compressor Description
• Condenser Description
• Control Assembly Description
• Dual Zone Air Conditioning (A/C) System Description
• Evaporator Description
• Expansion (Orifice) Tube Description
• Handling Air Conditioning (A/C) Compressor
• Handling Air Conditioning Compressor Oil
• Handling of Refrigerant Lines and Fittings
• Handling Refrigerant R-134a
• Heater Core Description
• Heater System Description
• HVAC Blower Controls Circuit Description
• HVAC Compressor Controls Circuit Description
• HVAC Temperature Controls Circuit Description
• Inside Air Temperature Sensor Description
• Maintaining Chemical Stability
• O-Ring/Flat Washer Description
• Odor Description
• Operating Modes
• Passenger Compartment Air Filter Description
• Programmer Description
• Purge Mode Description
• Refrigerant Oil Distribution
• Refrigerant R-134a
• Refrigeration System Description
• Relays and Sensors Description
• Sun Load Temperature Sensor Description

All Special Tools and Equipment

• Special Tools

All Visual Identification

• HVAC Connector End Views

Cleaning, Inspection, and Adjustment

• Compressor Leak Testing

Diagnostic Procedures

• Air Delivery and Temperature Control Check
• Blower Has High Speed Only
• Blower Motor Inoperative at Any Speed
• Blower Motor Not Running - High Current Draw Key Off
• Blower Motor Speed Erratic
• Heating Insufficient
• HVAC Compressor Clutch Does Not Disengage
• HVAC Compressor Clutch Does Not Engage
• Noise Diagnosis

Diagnostic Trouble Codes

• DTC B1310 Ambient Air Temp Sensor Open Circuit
• DTC B1317 Inside Air Temperature Sensor Fault
• DTC B1318 LH Solar Sensor Fault
• DTC B1324 A/C Pressure Condition
• DTC B1328 RH Sun Load Sensor Fault
• DTC B1330 Left Panel Discharge Sensor Fault
• DTC B1331 Right Panel Discharge Sensor Fault
• DTC B1332 Left Heater Discharge Sensor Fault
• DTC B1333 Right Heater Discharge Sensor Fault
• DTC B1334 Passenger Control Assembly Out Of Range
• DTC B1340 Air Mix Door #1 Movement Problem
• DTC B1341 Air Mix Door #2 Movement Problem
• DTC B1343 Air Inlet Door Movement Fault
• DTC B1344 Mode Door Movement Fault
• DTC B1399 Loss of KDD Communications
• DTC B1652 Loss of Keep Alive Memory (KAM)
• DTC Table

Disassembly, Overhaul, Repair, and Assembly

• Air Conditioning Clutch Coil Installation
• Air Conditioning Clutch Coil Removal
• Clutch Rotor and Bearing Removal
• Clutch Rotor and/or Bearing Install
• Compressor Clutch Plate and Hub Assembly Removal
• Compressor Clutch Plate/Hub Assembly Install
• Compressor Control Valve Assembly Install
• Compressor Control Valve Assembly Removal
• Compressor Pressure Relief Valve Installation
• Compressor Pressure Relief Valve Removal
• Compressor Shaft Seal Install
• Compressor Shaft Seal Removal

Electrical/Electronic Schematic Diagrams

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

General Diagnostic Information

• Cooling Insufficient - Air Conditioning (A/C) Inoperative
• Diagnostic System Check
• Fault Detection
• Functional Check
• Intermittents and Poor Connections
• Leak Testing
• Odor Diagnosis
• Scan Tool Diagnostics
• Self-Diagnostics
• Sensor Resistance Table
• System Performance Test

Mechanical Specifications

• Fastener Tightening Specifications

Other Specifications

• GM SPO Group Numbers
• Refrigerant Oil Distribution Specifications
• System Capacities

Removal, Installation, and Replacement

• Accumulator Tube Replacement
• Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement
• Air Conditioning (A/C) Temperature Sensor Replacement
• Air Conditioning Accumulator Replacement
• Air Conditioning Compressor Bracket Replacement
• Air Conditioning Compressor Hose Replacement
• Air Conditioning Compressor Replacement
• Air Conditioning Condenser Replacement
• Air Conditioning Evaporator Core Replacement
• Air Inlet Actuator Replacement
• Air Mix Actuator Replacement - Driver
• Air Mix Actuator Replacement - Passenger
• Ambient Temperature Sensor Replacement
• Auxiliary Air Distributor Duct Replacement
• Blower Motor and Fan Replacement
• Blower Motor Control Module Replacement
• Control Assembly Replacement
• Defroster Valve Actuator Replacement
• Evaporator Tube Replacement
• Expansion (Orifice) Tube Replacement
• Heater Core Replacement
• Heater Temperature Sensor Replacement
• Heater/Bi-Level Actuator Replacement
• HVAC Module Assembly Replacement
• Inside Air Temperature Sensor Replacement
• Mode Valve Actuator Replacement
• O-Ring Replacement
• Passenger Compartment Air Filter Replacement
• Programmer Replacement
• Refrigerant Recovery and Recharging
• Service Ports Replacement
• Sun Load Temperature Sensor Replacement
• Temperature Actuator Replacement