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2003
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TrailBlazer 5.3 P, 4WD
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System - Self-Diagnostics - 5.3L
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Diagnostic Tests
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DTC P0351-P0358: Ignition Control Circuit
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Conditions For Setting DTC
Conditions For Setting DTC
The PCM detects the IC circuit is grounded, open, or shorted to voltage for less than 1 second.