Home › Volvo › 2012 › C30 T-5 R-Design, Automatic Trans › Repair and Diagnosis › Engine Performance › System › Engine Control Module (ECM) Diagnostic Trouble Codes - 8 Of 8 › ECM-985C: Engine Control Module (ECM), Fuel Shut-Off System. Internal Fault (B5254T3; 2007-2008) › Internal Fault