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Home >> Chevrolet >> 1998 >> Forward Control P30, 6.5 F, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Controls - Tests W/Codes - 7.4L) >> Self-Diagnostic System >> Clearing Diagnostic Trouble Codes (DTC)

Clearing Diagnostic Trouble Codes (DTC)

WARNING: This page is about a different variant/trim than selected.

To clear DTCs from memory, either to determine if malfunction will occur again or after making necessary repairs, disconnect power supply to ECM/PCM/VCM for at least 30 seconds or clear codes using a scan tool.

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