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Home >> GMC >> 1983 >> Magnavan 5.7 L, 400/M40 >> Repair and Diagnosis >> Engine Performance >> System >> Feedback Carburetor Tests W/Codes >> Exiting Diagnostic Mode

Exiting Diagnostic Mode

To exit diagnostic mode, turn ignition "OFF", then remove jumper wire from ALDL connector.

NOTE: The terms "enter diagnostics" and "exit diagnostics" will be used periodically throughout this section. Follow appropriate procedure for entering and exiting diagnostic mode when instructed to do so.
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