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Home >> Toyota >> 2012 >> Prius Plug-in >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Plug-In) (Diagnostic Codes (P0505-U0293) & Circuit Tests) >> SFI System >> DTC P0606: ECM / PCM Processor >> Typical Enabling Conditions
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Typical Enabling Conditions

Monitor runs whenever the following DTCs are not stored None
All of the following conditions are met -
Auxiliary battery voltage 8 V or higher
Power switch On (IG)
Time after power switch off to on (IG) More than 0.5 seconds