Home >> Volvo >> 2007 >> V70 Base, 2.5 59, AWD >> Repair and Diagnosis >> Electrical >> Body Electrical >> Central Electronic Module (CEM) & Accessory Electronic Module (AEM) Diagnostic Trouble Codes >> AEM-5F11: Relay, Engine Block Heater. Signal Too High Or Signal Missing. Permanent Fault (2001-2007) >> Signal too high / Signal missing