Home >> Volvo >> 2003 >> S60 Base, 2.4 58 >> Repair and Diagnosis >> Electrical >> Body Electrical >> Central Electronic Module (CEM), Rear Electronic Module (Rem), Upper Electronics Module (UEM) - Diagnostic Trouble Codes - 7 Of 13 >> CEM-6A04: Rear Right Door Locked. Signal Too Low. Permanent Fault (2001-2004) >> Signal too low. Permanent fault >> Checking Driver Door >> Replacing Control Unit