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Home >> Chevrolet >> 2005 >> Optra5 LS, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - 2.0L (L34 GMDAT) - Introduction And Mechanical Repairs >> Description and Operation >> Engine Control Module (ECM) Description >> Freeze Frame
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Freeze Frame

Freeze Frame is an element of the diagnostic management system which stores various vehicle information at the moment an emissions related fault is stored in memory and when the malfunction indicator lamp (MIL) is commanded ON. Freeze Frame data can help to identify the cause of a fault.

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