Home >> Volvo >> 2004 >> S60 Base, 2.5 59, AWD >> Repair and Diagnosis >> Electrical >> Body Electrical >> Central Electronic Module (CEM), Rear Electronic Module (Rem), Upper Electronics Module (UEM) - Diagnostic Trouble Codes - 10 Of 13 >> Rem-4A39: Fuel Level, Gas. Signal Too Low (2002-2004) >> Signal too low >> Gas pipe, checking for leaks >> Notes