Home >> Volvo >> 2007 >> XC70 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Driver Door Module (DDM) & Passenger Door Module (PDM) Diagnostic Trouble Codes (XC) - 1 Of 2 >> DDM/PDM-0015 Central Locking Relay RL2_Rd4. Signal Too Low (2001-2002) >> Signal too low