Home >> Volvo >> 2004 >> XC70 >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control Module (ECM) Diagnostic Trouble Codes (XC) - 7 Of 9 >> ECM-9070: Engine Control Module (ECM). Internal Fault. Permanent Fault (B5254T2; 2003-2004) >> Internal fault. Permanent fault