Signal Specification

General

All the values given below are between the respective terminal in column 1 and terminal #A9 in column 2 (power ground) unless otherwise stated in brackets after the table entry.

NOTE:

It is important to connect the breakout box and check the ground terminals before taking readings.

U=	DC voltage in volts (V)	U_AC =	AC voltage in volts (V)
U_bat =	Battery voltage (V)	f =	Frequency in Hertz (Hz)
U_low =	Voltage approximately 0 V	t =	Time in seconds

Driver door module (DDM) connector A, Passenger door module (PDM) connector A

Fig 1: Identifying Door Module Connector A

Courtesy of VOLVO CARS CORPORATION

SIGNAL TABLE CONNECTOR A

Terminal Breakout box	Terminal Control module	Signal type	Ignition off Active/not active	Ignition on Active/not active	Other
#1	A1	Lock motor 1 (M1)	U_bat /U_low	U_bat /U_low	Active when locking.
#2	A2	Locking motor, common (M2)	U_bat /U_low	U_bat /U_low	Active when unlocking.
#3	A3	Communication cable, control modules (CAN H)	U = 2.5-3.5 V	U = 2.5-3.5 V
#4	A4	Signal from the control for power window mechanism, Up.	U_low	U_bat /U_low	Only Passenger door module (PDM), not connected on the Driver door module (DDM). Active when raising the window.
#5	A5	Signal from the control for power window mechanism, Down	U_low	U_bat /U_low	Only Passenger door module (PDM), not connected on the Driver door module (DDM). Active when lowering the window.
#6	A6	Central locking control, locking	U_low	U_bat /U_low
#7	A7	Central locking control, unlocking	U_low	U_bat /U_low
#8	A8	Temperature sensor	U_low	U_bat /U_low
#9	A9	Ground	U_low	U_low
#10	A10	Lock motor 2 (M3)	U_bat /U_low	U_low / U_bat	Active during deadlocking.
#11	A11	Ground (31SB)	U_low	U_low
#12	A12	Communication cable, control modules (CAN L)	U = 1.5 - 2.5 V	U = 1.5 - 2.5 V
#13	A13	Communication cable, control modules (LIN)	U = 5 - 8 V	U = 5 - 8 V	Control modules in rear doors, control panel in driver's door.
#14	A14	Control panel driver's door, voltage supply	U_low	U_bat	Not connected on the Passenger door module (PDM).
#15	A15	Status door lock (DL)	U_low in locked position U_bat in unlocked position	U_low in locked position U_bat in unlocked position
#16	A16	Control panel lighting	U_low	U_bat
#17	A17	Ground, temperature sensor	U_low	U_low
#18	A18	Power supply control module	U_bat	U_bat

Driver door module (DDM) connector B, passenger door module (PDM) connector B

Fig 2: Identifying Door Module Connector B

Courtesy of VOLVO CARS CORPORATION

SIGNAL TABLE, CONNECTOR B

Terminal Breakout box	Terminal Control module	Signal type	Ignition off Active/not active	Ignition on Active/not active	Other
#21	B1	Ground, temperature sensor	U_low	U_low
#22	B2	Temperature sensor	U_low	U_bat
#23	B3	Control module camera, voltage supply	U_low	U_bat
#24	B4	Communication cable, control modules (LIN)	U_low	U_bat /U_low	Control module camera.
#25	B5	Reserve
#26	B6	Reserve
#27	B7	MC (Mirror Common)	U_low	U_bat /U_low	Door mirror motor, common.
#28	B8	MUD (Mirror Up and Down)	U_low	U_bat /U_low	Door mirror motor, Up / Down.
#29	B9	MLR (Mirror Left and Right)	U_low	U_bat /U_low	Door mirror motor, Left / Right.
#30	B10	MF (Mirror Fold)	U_low	U_bat /U_low
#31	B11	Door mirror heating	U_bat /U_low	U_bat /U_low
#32	B12	Ground, door mirror heating, door mirror lighting and turn signal lamp (31M)		U_low
#33	B13	Door mirror lighting	U_bat /U_low	U_bat /U_low	Not used on all vehicles.
#34	B14	Turn signal lamp, door mirror	U_bat /U_low	U_bat /U_low

Driver door module (DDM) connector C

Fig 3: Identifying Door Module Connector B

Courtesy of VOLVO CARS CORPORATION

SIGNAL TABLE CONNECTOR C

Terminal Breakout box	Terminal Control module	Signal type	Ignition off Active/not active	Ignition on Active/not active	Other
#21	C1	Reserve
#22	C2	Reserve
#23	C3	Door mirror potentiometer, reference voltage	U_low	U = 5 V	Not used on all vehicles.
#24	C4	Reserve
#25	C5	Ground, door mirror potentiometer	U_low	U_low	Not used on all vehicles.
#26	C6	Reserve
#27	C7	Reserve
#28	C8	Reserve
#29	C9	Reserve
#30	C10	Door mirror potentiometer (right / left)	U_low	U = 1 - 4 V	Not used on all vehicles.
#31	C11	Reserve
#32	C12	Door mirror potentiometer (up / down)	U_low	U = 1 - 4 V	Not used on all vehicles.
#33	C13	Reserve
#34	C14	Reserve

Control module left rear door/right rear door (S40 / V50 / C70)

Fig 4: Identifying Door Module Connector A

Courtesy of VOLVO CARS CORPORATION

SIGNAL TABLE CONNECTOR A

Breakout box terminal	Control module terminal	Signal type	Ignition off Active/Not active	Ignition on Active/Not active	Other
#1	#A1	Lock motor, child safety locks	U_bat /U_low	U_bat /U_low	Active when locking the child-proof locks. Does not apply to C70.
#2	#A2	Lock motor 2 (M3)	U_bat /U_low	U_bat /U_low	Active during deadlocking. Does not apply to C70.
#3	#A3	Switch child-proof locks, input signal	U_low	U_bat /U_low	Does not apply to C70.
#4	#A4	Switch double lock, input signal	U_low	U_bat /U_low	Does not apply to C70.
#5	#A5	Control panel lighting	U_low	U_bat	Does not apply to C70.
#6	#A6	LIN			Communication with control modules in front doors.
#7	#A7	Signal from the control for power window mechanism, Up.	U_low	U_bat /U_low	Does not apply to C70.
#8	#A8	Signal from the control for power window mechanism, Down	U_low	U_bat /U_low	Does not apply to C70.
#9	#A9	Ground	U_low	U_low
#10	#A10	Lock motor 1 (M1)	U_bat /U_low	U_bat /U_low	Active when locking. Does not apply to C70.
#11	#A11	Locking motor, common (M2)	U_bat /U_low	U_bat /U_low	Active when unlocking. Does not apply to C70.
#12	#A12	Ground 31 SB	U_low	U_low
#13	#A13	Ground 31D	U_low	U_low
#14	#A14	Reserve
#15	#A15	Reserve
#16	#A16	Reserve
#17	#A17	Reserve
#18	#A18	Power supply control module	U_bat	U_bat