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2000
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LS2 Standard
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Repair and Diagnosis (Single Page)
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Heating, Ventilation & A/C (HVAC)
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HVAC Control Systems
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Manual A/C-Heater Systems
Manual A/C-Heater Systems
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HVAC Components
Specifications
Description & Operation
Notes
A/C Control Relay
Airflow Control
Blower Motor Switch
Blower Motor Resistor
Cooling Fan Logic
Notes
2.2L Engine
3.0L Engine
Compressor Clutch Pcm Control Logic
Compressor Over-Speed Protection (COSP)
Engine Coolant Temperature (2.2L Engine)
Engine Coolant Temperature (3.0L Engine)
Wide Open Throttle (WOT)
Evaporator Low Ambient Temperature Protection (ELAP)
Mode Selector
Refrigerant System
Temperature Control Selector
Adjustments
Temperature Control Cable
Trouble Shooting
Notes
A/C Compressor Inoperative
Blower Motor Inoperative
Blower Motor Operates In High Speed When Blower Switch Is Activated
Blower Motor Operates In High Speed, But Not In One Or More Of The Other Speeds
Blower Motor Operates In All Speeds Except High Speed
Symptom Tests
Notes
A/C Compressor Clutch Stays Engaged
A/C Compressor Does Not Operate
Engine Cooling Fan No. 1 Inoperative
Notes
Low Speed
Medium Speed
High Speed
Engine Cooling Fan No. 2 Inoperative
Low Speed
Medium Speed
High Speed
Mode Door Inoperative
No Outside Air Mode (Blower Motor Operates Normally)
Notes
Recirculation Indicator Light Illuminates
Recirculation Indicator Light Does Not Illuminate
No Recirculated Air Mode (Blower Motor Operates Normally)
System Tests
Notes
A/C System Performance
In Service Bay (2.2L Engine)
In Service Bay (3.0L Engine)
Road Test At 45 MPH (2.2L Engine)
Road Test At 45 MPH (3.0L Engine)
Component Tests
A/C Switch
Blower Motor Relay
Blower Motor Resistor
Blower Switch
Removal & Installation
Notes
A/C-Heater Control Panel
Removal & Installation
Blower Motor
Removal & Installation
Blower Motor Resistor
Removal & Installation
Compressor
Notes
Removal
Installation
Condenser
Notes
Removal & Installation
Evaporator Core
Removal
Installation
Heater Core
Removal
Installation
Receiver-Drier
Removal & Installation
RECIRCULATION Motor
Removal & Installation
Thermal Expansion Valve
Notes
Removal
Installation
Torque Specifications
Wiring Diagrams