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Home >> Toyota >> 2011 >> Matrix Base, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (2ZR-FE) (Diagnostic Codes (P0420 - P1605) & Circuit Tests) >> SFI System >> DTC P0601: Internal Control Module Memory Check Sum Error >> Procedure
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DTC P0601: Internal Control Module Memory Check Sum Error: Procedure

  1. REPLACE ECM 
    1. Replace the ECM. Refer to REMOVAL .

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