Operation CHARM
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Chevrolet
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1992
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Lumina V6-191 3.1L
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Repair and Diagnosis
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Heating and Air Conditioning
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Air Door
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Air Door Actuator / Motor
Air Door Actuator / Motor
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Description and Operation
Testing and Inspection
Initial Inspection and Diagnostic Overview
System Check
With A/C
Without A/C
System Diagnosis
With A/C
Without A/C
Troubleshooting Hints
With A/C
Without A/C
Component Tests and General Diagnostics
With A/C
Test A - Solenoid
Table 1 of 2
Table 2 of 2
Test B - Heater & A/C Control Assembly Solenoid Control
Test C - Air Temperature Valve Motor
Without A/C
Test A: Solenoid Test
Test B: Heater Control Assembly Solenoid Control Test
Test C: Air Temperature Valve Motor Test
Locations
Heater/Defrost BI-Directional Vacuum Actuator
Recirculating Vent Valve Vacuum Actuator
Vent Valve Vacuum Actuator
A/C Valve Vacuum Actuator
Air Temperature Valve Motor
BI-Level Valve Vacuum Actuator
Service and Repair
Air Inlet Actuator Replace
Air Inlet Valve Replace
Temperature Valve Replace
Mode Valve Replace
Mode Valve Vacuum Actuator Replace
Diagrams
Diagram Information and Instructions
Cell References
Schematic Symbols
Wire Color Code Identification
Diagnostic Aids
Connector, Splicing and Terminal Repair
Pull-to-Seat Connectors
Push-to-Seat Connectors
General Troubleshooting Procedures
Basic Troubleshooting Guide
Checking Terminal Contacts
Intermittents and Poor Connections
Troubleshooting Tests
Troubleshooting Tools
Handling and Measuring Procedures
Wire Repair Procedures
Circuit Protection Devices
Typical Electrical Repair
Splicing Copper Wire Using Crimp and Seal Splice Sleeves
Splicing Copper Wire Using Splice Clips
Splicing Twisted/Shielded Cable
Connector Views
Electrical Diagrams
With A/C
Without A/C
Air Delivery
Temperature Controls
Vacuum and Vapor Hose Diagrams
Description and Operation
Testing and Inspection
Locations
Service and Repair
DiagramsDescription and OperationTesting and InspectionLocationsService and RepairDiagrams