Operation CHARM
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Cadillac
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1997
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DeVille d Elegance V8-4.6L VIN Y
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Repair and Diagnosis
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Lighting and Horns
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Horn
Horn
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Description and Operation
Testing and Inspection
Initial Inspection and Diagnostic Overview
Circuit Operation
Diagnostic Charts
Chart 1 Horns Inoperative
Chart 2 Horns ON All Times
Chart 3 One Horn Does Not Operate
Troubleshooting Hints
Symptom Related Diagnostic Procedures
Component Tests and General Diagnostics
Locations
"A" Note (RH Horn)
Horn D Note, RH
Horn F Note, RH
Horn "C" Note, LH
Diagrams
Diagram Information and Instructions
Cell References
Commonly Used Abbreviations
Electrostatic Discharge (ESD Sensitive Devices)
On Board Diagnostics II (OBDII) Symbol
Schematic Symbols
Supplemental Inflatable Restraint (SIR) System
Wire Color Code Identification
Wire Size Conversion Table
Diagnostic Aids
General Troubleshooting Procedures
Additional Information
Basic Knowledge Required
Checking Terminal Contacts
Detecting Electrical Intermittents
Intermittents and Poor Connections
Meter Connections
Troubleshooting Tests
Aftermarket Accessories
Probing (Frontprobe & Backprobe)
Testing For Voltage
Testing For Continuity
Testing For Voltage Drop
Testing For Short to Ground
Troubleshooting Tools
Test Light/Digital Voltmeter
Connector Test Adapters
Self-Powered Test Light
Ohmmeter
Fused Jumper Wire
Short Finder
Fuse Tester
Special Tools
Typical Electrical Repair Procedures
General Information
Connector Repair
Diode Replacement
Splicing Copper Wire Using Crimp and Seal Splice Sleeves
Splicing Copper Wire Using Splice Clips
Splicing Twisted/Shielded Cable
Terminal Repairs
Tech Tips
Electrical Diagrams
With Four Note Horn
Without Four Note Horn
Technical Service Bulletins