GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2001
🢒
Yukon XL - 4WD
🢒
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
Air Delivery Improper
Air Delivery Improper - Auxiliary
Air Recirculation Malfunction
Auxiliary Blower Motor Always On
Auxiliary Blower Motor Inoperative
Auxiliary Blower Motor Malfunction
Blower Motor Always On
Blower Motor Inoperative
Blower Motor Malfunction
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
Too Cold in Vehicle
Too Cold in Vehicle - Auxiliary
Too Hot in Vehicle
Too Hot in Vehicle - Auxiliary
Diagnostic Trouble Codes
Diagnostic Trouble Code (DTC) List
DTC B0159
DTC B0164
DTC B0174
DTC B0179
DTC B0184
DTC B0229
DTC B0248
DTC B0268
DTC B0408
DTC B0414
DTC B0429
DTC B0434
DTC B1020
DTC B3531
DTC B3579
DTC B3584
DTC B3761
DTC B3764
DTC U1500
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
Air Temperature Sensor Replacement - Lower Auxiliary
Air Temperature Sensor Replacement - Upper Auxiliary
Ambient Air Temperature Sensor Replacement
Auxiliary Blower Motor Processor Replacement
Auxiliary Heater and Air Conditioning Control Module Replacement
Auxiliary Heater and Air Conditioning Control Replacement - Front
Auxiliary Mode Valve Actuator Replacement
Auxiliary Temperature Valve Actuator Replacement
Blower Motor Control Processor Replacement
Duct Air Temperature Sensor Replacement - Lower
Duct Air Temperature Sensor Replacement - Upper
HVAC Control Module Replacement
Inside Air Temperature Sensor Replacement
Mode Valve Actuator Replacement
Sun Load Temperature Sensor Replacement
Temperature Valve Actuator Replacement