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) and 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 / 0 V	U_bat / 0 V	Active when locking.
#2	A2	Locking motor, common (M2)	U_bat / 0 V	U_bat / 0 V	Active when unlocking
#3	A3	Communication cable, control modules (CAN H)	2.5-3.5 V	2.5-3.5 V
#4	A4	Signal from the control for power window mechanism, driver's door, Up.	0 V	0V/U_bat	Active when raising the window.
#5	A5	Signal from the control for power window mechanism, driver's door, Down.	0 V	0V/U_bat	Active when lowering the window.
#6	A6	Central locking control, locking	0 V	0V/U_bat
#7	A7	Central locking control, unlocking	0 V	0V/U_bat
#8	A8	Temperature sensor	0 V	U_bat / 0 V
#9	A9	Ground	0 V / 0 V	0 V / 0 V
#10	A10	Lock motor 2 (M3)	U_bat / 0 V	0V/U_bat	Active during deadlocking.
#11	A11	Ground (31SB)	0 V / 0 V	0 V / 0 V
#12	A12	Communication cable, control modules (CAN L)	1.5 - 2.5 V	1.5 - 2.5 V
#13	A13	Communication cable, control modules (LIN)	5 - 8 V	5 - 8 V
#14	A14	Ground, door lock (31D)	0 V / 0 V	0 V / 0 V
#15	A15	Status door lock (DL)	0 V at locked position, 12 V at unlocked position	0 V at locked position, 12 V at unlocked position
#16	A16	Control panel lighting	0 V	U_bat
#17	A17	Ground, temperature sensor	0 V / 0 V	0 V / 0 V
#18	A18	Power supply	U_bat	U_bat

Driver Door Module (DDM) and Passenger Door Module (PDM), connector B

Fig 2: Identifying 14-Bit Connector

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	0 V / 0 V	0 V / 0 V
#22	B2	Temperature sensor	0 V	U_bat
#23	B3	MUD (Mirror Up and Down)	0 V	U_bat / 0 V	Door mirror motor, Up / Down
#24	B4	MLR (Mirror Left and Right)	0 V	U_bat / 0 V	Door mirror motor, Left / Right
#25	B5	Turn signal lamp, door mirror	U_bat /0 V	U_bat / 0 V
#26	B6	MF (Mirror Fold)	0 V	U_bat / 0 V	Door mirror motor, retraction / deployment. Active when folding.
#27	B7	MC (Mirror Common)	0 V	U_bat / 0 V	Door mirror motor, common.
#28	B8	Door mirror potentiometer, reference voltage	0 V	5 V	Not used on all cars.
#29	B9	Door mirror potentiometer (up / down)	0V / 0V	Between 1 - 4 V	Not used on all cars.
#30	B10	Door mirror potentiometer (right / left)	0V / 0V	Between 1 - 4 V	Not used on all cars.
#31	B11	Ground, door mirror potentiometer	0 V / 0 V	0 V / 0 V	Not used on all cars.
#32	B12	Ground, door mirror heating, door mirror lighting and turn signal lamp (31M)	0 V / 0 V	0 V / 0 V
#33	B13	Door mirror lighting	U_bat / 0 V	U_bat / 0 V	Not used on all cars.
#34	B14	Door mirror heating	U_bat / 0 V	U_bat / 0 V

Driver Door Module (DDM) and Passenger Door Module (PDM), connector C

Fig 3: Identifying 14-Bit Connector

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
#21	C1	Passenger window front, up	0 V	U_bat / 0 V
#22	C2	Passenger window front, down	0 V	U_bat / 0 V
#23	C3	Window left rear door, up	0 V	U_bat / 0 V
#24	C4	Window left rear door, down	0 V	U_bat / 0 V
#25	C5	Window right rear door, up	0 V	U_bat / 0 V
#26	C6	Window right rear door, down	0 V	U_bat / 0 V
#27	C7	Ground	0 V / 0 V	0 V / 0 V
#28	C8	Comfort open close	0 V	U_bat / 0 V
#29	C9	Door mirror selector	0 V	U_bat / 0 V
#30	C10	Door mirror direction selector	0 V	U_bat / 0 V
#31	C11	Control lighting, door mirror right	0 V	U_bat / 0 V
#32	C12	Control lighting, door mirror left	0 V	U_bat / 0 V
#33	C13	Control lighting, door mirror	0 V	U_bat
#34	C14	Reference voltage 15SB	0 V	U_bat