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Home >> Chevrolet >> 2003 >> Malibu LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls Self-Diagnostics - 3.1L Engine >> System Tests >> Mil Always On >> Circuit Description
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Circuit Description

Battery positive voltage is supplied directly to the Malfunction Indicator Light (MIL). The PCM turns the MIL ON by grounding the MIL control circuit.