Home >> Volvo >> 2009 >> V70 >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Accessory USB Unit (AUU) And Central Electrical Module (CEM) Diagnostic Trouble Codes >> CEM-B10AD09 Rain Sensor. General Failure Information. Component Failures (2008-10) >> Diagnostic Trouble Code (DTC) Information CEM-B10AD09 >> Fault-Tracing (2010)