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Home >> GMC >> 1998 >> Forward Control 6.5 Y, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 6.5L Turbo Diesel >> Self-Diagnostic System >> Special Tools (Diagnostic)

Special Tools (Diagnostic)

Special scan tools, plugged into the DLC, are used to read DTC(s) and check voltages in system on serial data line. Scan tools can save a great deal of time. Refer to scan tool manufacturer's instructions.