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Home >> Chevrolet >> 2001 >> Lumina >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls Self-Diagnostics - 3.1L >> Diagnostic Tests >> DTC P0620: Generator Performance >> Code Enable Criteria

Code Enable Criteria

PCM will run diagnostic for this DTC when engine is running. DTC will set when "L" terminal voltage is low while PCM is commanding generator on. Condition must be present for more than 10 seconds.

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