Operation CHARM
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Pontiac
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1997
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Sunfire L4-2.2L VIN 4
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Repair and Diagnosis
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Powertrain Management
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Information Bus
Information Bus
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Description and Operation
Circuit Operation
Serial Data Communications
Testing and Inspection
Initial Inspection and Diagnostic Overview
System Check
Troubleshooting Hints
Symptom Related Diagnostic Procedures
- Symptom Diagnostic Charts
Chart #1 Scan Tool Can't Communicate W/One/More Modules
Chart #1 Scan Tool Does Not Communicate With a Module
- Symptom Table
Component Tests and General Diagnostics
