System Description/Design: Notes

The central locking system with keyless functionality is a distributed system. Those parts which are included in the system are:

• central electronic module (CEM)
• keyless vehicle module (KVM)
• driver door module (DDM)
• passenger door module (PDM)
• right rear door module (RDM)
• left rear door module (LDM)
• power operated tailgate module (POT)
• driver information module (DIM)
• phone module (PHM)
• infotainment control module (ICM)
• switch for valet locking
• switch for opening the fuel tank filler cover (on the light switch module (LSM))
• switch for unlocking tailgate (on the light switch module (LSM))
• lock units in doors
• lock motor at the fuel tank filler cover
• lock motor for the tailgate
• Remote keyless entry (TRX) receiver
• supplemental restraint system control module (SRS).