HVAC

All Component Locator

• Heater Blower Controls Component Views
• Heater Blower Controls Components

All Description and Operation

• Air Distribution System Description
• Heater Blower Controls Circuit Description
• Heater System Description
• Modes Description

All Visual Identification

• Heater Blower Controls Connector End Views

Diagnostic Procedures

• Blower Motor Inoperative at Any Speed
• Blower Motor Inoperative at High Speed Only
• Blower Motor Inoperative at Low Speed Only
• Blower Motor Inoperative at Medium Speed
• Heat Excessive
• Heating Insufficient

Electrical/Electronic Schematic Diagrams

• Heater Blower Controls Schematic References
• Heater Blower Controls Schematics

Mechanical Specifications

• Fastener Tightening Specifications

Other Specifications

• GM SPO Group Numbers

Removal, Installation, and Replacement

• Air Distributor Duct Replacement
• Air Inlet Actuator Replacement
• Blower Motor and Fan Replacement
• Blower Motor Resistor Replacement
• Blower Switch Replacement
• Control Assembly Replacement
• Heater Core Replacement
• Heater Pipes Replacement
• Heater/Vent Module Replacement
• Mode Valve Actuator Replacement
• Temperature Actuator Replacement