Standard Central Locking System (2006-2007): Signals

The tables below summarize the input and output signals to the units in the central locking system. The signal types are divided into directly connected signals, serial communication and controller area network (CAN) communication.

CENTRAL ELECTRONIC MODULE (CEM) (4/56):

Input signals	Output signals
Directly connected:	Directly connected:
Switch for reduced alarm function for disengaging deadlocking Switch for privacy locking Switch tailgate/trunk lid Switch for opening the fuel tank filler cover High/low beam switch for activating the approach lights on the steering wheel module (SWM) Indicator that the driver's door is open Indicator that the passenger door is open Indicator that the tailgate/trunk lid is open Indicator that the hood is open (cars with alarm) Signal for unlocking from the supplemental restraint system module (SRS) if the airbags are triggered.	Lock motor for the tailgate/trunk lid Lock motor for the fuel tank filler cover Indicator lamp in the switch for reduced alarm, indicates that the function is activated. Indicator LED in the doors (only C70).
Via serial communication:	Via serial communication:
Remote receiver module (RRX).	-
Via Controller Area Network (CAN) communication:	Via Controller Area Network (CAN) communication:
Infotainment control module (ICM) for customer adaptation Driver door module (DDM) for locking and unlocking commands Passenger door module (PDM) for locking and unlocking commands Engine control module (ECM) for information about the status of the engine Brake control module (BCM) for information about vehicle speed Transmission control module (TCM), indicates the position of the gear selector. Convertible Roof Module (CRM)	Infotainment control module (ICM) for customer adaptation Driver door module (DDM) for locking and unlocking commands Passenger door module (PDM) for locking and unlocking commands Phone module (PHM) for unlocking via the Volvo On Call service. Convertible Roof Module (CRM)

DRIVER DOOR MODULE (DDM) (3/126):

Input signals	Output signals
Directly connected:	Directly connected:
Indication of locked mode from the lock motor Central locking switch	Output signal for the central locking motor Output signal for the deadlock motor Output signal for the motors for central locking and deadlocking when unlocking.
Via serial communication:	Via serial communication:
Via Controller Area Network (CAN) communication:	Via Controller Area Network (CAN) communication:
Central electronic module (CEM) for locking and unlocking commands.	Central electronic module (CEM) for status information about the position of certain lock motors.

PASSENGER DOOR MODULE (PDM) (3/127):

Input signals	Output signals
Directly connected:	Directly connected:
Indication of locked mode from the lock motor Central locking switch	Output signal for the central locking motor Output signal for the deadlock motor Output signal for the motors for central locking and deadlocking when unlocking.
Via serial communication:	Via serial communication:
Via Controller Area Network (CAN) communication:	Via Controller Area Network (CAN) communication:
Central electronic module (CEM) for locking and unlocking commands.	Central electronic module (CEM) for status information about the position of certain lock motors.

DRIVER INFORMATION MODULE (DIM) (5/1):

Input signals	Output signals
Via Controller Area Network (CAN) communication:	Via Controller Area Network (CAN) communication:
Information about whether the information lamp or warning lamp must be lit Information about which text message must be displayed.	-

PHONE MODULE (PHM) (16/60) (OPTION):

Input signals	Output signals
Via Controller Area Network (CAN) communication:	Via Controller Area Network (CAN) communication:
Central electronic module (CEM) for remote unlocking via the Volvo On Call service.	Central electronic module (CEM) for remote unlocking via the Volvo On Call service.

CONVERTIBLE ROOF MODULE (CRM) (4/59)

Input signals	Output signals
Directly connected:	Directly connected:
-	Lockable storage compartment (option) (8/137-138, 8/140-141) Lock for ski hatch (8/139)
Via Controller Area Network (CAN) communication:	Via Controller Area Network (CAN) communication:
Central electronic module (CEM)	Central electronic module (CEM)