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Home >> Lexus >> 1993 >> ES 300 Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Control Unit >> Fail-Safe Function
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Fail-Safe Function

If the ECM determines there is a malfunction from signals received, the ECM will control fuel injection and ignition timing at predetermined levels as a back-up function to make it possible to continue vehicle operation.