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Home >> Chevrolet >> 1999 >> Monte Carlo Z34 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Tests W/Codes - Introduction >> Self-Diagnostic System >> Clearing Diagnostic Trouble Codes (DTCS)
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Clearing Diagnostic Trouble Codes (DTCS)

To clear DTCs from memory, use scan tool, following scan tool manufacturer's instructions. Codes may also be cleared by disconnecting power supply to ECM/PCM/VCM for at least 30 seconds.

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