LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Saturn >> 2003 >> Ion 1 Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> System Tests >> Mil Always On >> Circuit Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit Description

Ignition voltage is supplied directly to the Malfunction Indicator Light (MIL). The Engine Control Module (ECM) turns the MIL ON by grounding the MIL control circuit.

scientia non olet · About LEMON Manuals