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2004
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Sierra 1500 4WD V8-6.0L VIN U
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Repair and Diagnosis
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Accessories and Optional Equipment
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Antitheft and Alarm Systems
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Testing and Inspection
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Symptom Related Diagnostic Procedures
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Lights Inoperative In Alarm Mode - Content Theft Deterrent (CTD)
Lights Inoperative In Alarm Mode - Content Theft Deterrent (CTD)
Step 1:
Steps 2-3: