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Home >> Buick >> 2002 >> Century Limited >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics - 3.1L Engine >> System Tests >> Mil On Steady >> Test Description
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Test Description

The number below refers to the step number on the diagnostic procedure.

  1. 5

    Using a test light connected to battery positive voltage, probe the MIL control circuit at the PCM.