GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Pontiac
🢒
2004
🢒
Bonneville
🢒
HVAC
🢒 HVAC Systems - Automatic
HVAC
All Component Locator
HVAC Component Views
All Description and Operation
Air Delivery Description and Operation
Air Temperature Description and Operation
All Special Tools and Equipment
Special Tools
All Visual Identification
HVAC Connector End Views
Diagnostic Procedures
Afterblow Enabling
Air Conditioning (A/C) System Does Not Maintain Set Temperature
Air Delivery Improper
Air Recirculation Malfunction
Blower Motor Always On
Blower Motor Inoperative
Blower Motor Malfunction
Control Head Illumination/Display Does Not Operate Properly
Diagnostic System Check - HVAC Systems - Automatic
HVAC Compressor Clutch Does Not Disengage
HVAC Compressor Clutch Does Not Engage
Outside Air Temperature Display Inaccurate or Inoperative
Symptoms - HVAC Systems - Automatic
Temperature Variation Between Driver and Passenger Outlets
Too Cold in Vehicle
Too Hot in Vehicle
Diagnostic Trouble Codes
Diagnostic Trouble Code (DTC) List
DTC B0126, B0131, B0159, B0164, B0174, or B0179
DTC B0184 or B0189
DTC B0234, B0249, B0269, or B0279
DTC B0237, B0252, B0272, or B0282
DTC B1000
DTC P0530
DTC P0532 or P0533
DTC P0645
DTC P1536
DTC P1540
DTC P1545
Electrical/Electronic Schematic Diagrams
HVAC Schematics
Electrical/Electronic Specifications
Sensor Resistance Table
General Diagnostic Information
Actuator Recalibration
Scan Tool Data Definitions
Scan Tool Data List
Scan Tool Output Controls
Mechanical Specifications
Fastener Tightening Specifications
Removal, Installation, and Replacement
Air Inlet Valve Actuator Replacement
Ambient Air Temperature Sensor Replacement
Blower Motor Control Processor Replacement
Duct Air Temperature Sensor Replacement - Lower Left Side
Duct Air Temperature Sensor Replacement - Lower Right Side
Duct Air Temperature Sensor Replacement - Upper Left Side
Duct Air Temperature Sensor Replacement - Upper Right Side
HVAC Control Module Replacement
Inside Air Temperature Sensor Aspirator Replacement
Inside Air Temperature Sensor Replacement
Mode Valve Actuator Replacement
Temperature Valve Actuator Replacement - Left Side
Temperature Valve Actuator Replacement - Right Side