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Home >> Ford >> 1990 >> Festiva LX, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Test Procedure >> Malfunction Indicator Light (Mil)

Malfunction Indicator Light (Mil)

Turn ignition switch to ON position. Connect a jumper wire between the STI connector and ground. See Figure . Observe MIL light, and record pulses to determine codes stored.