Signal Description, Driver's Door Module / Passenger Door Module (DDM/PDM)

General

All the values given below are between the respective terminal in column 1 and terminal #C1:13 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 (s)
PWM =	Pulse width modulated signal as a %

Driver door module (DDM), Passenger door module (PDM), control modules in rear doors

Fig 1: Driver Door Module (Ddm), Passenger Door Module (PDM), Control Modules In Rear Doors

Courtesy of VOLVO CARS CORPORATION

SIGNAL TABLE

Connector C1, front door
Breakout box terminal	Control module terminal	Signal type	Ignition off Inactive/active	Ignition on Inactive/active	Miscellaneous
#1	#C1:1	Window motor, terminal A (down)	U = 0 V	U=0 V / U=U_bat	Normally the motor is connected so that terminal A (high signal) lowers the window.
#2	#C1:2	Control module power supply	U = U_bat	U = U_bat
#3	#C1:3	Central locking	U = 0 V or U = U_bat , depending on lock command.	U = 0 V or U = U_bat , depending on lock command.	The polarity changes with locking and unlocking.
#4	#C1:4	Lock motor, common	U = 0 V or U = U_bat , depending on lock command.	U = 0 V or U = U_bat , depending on lock command.	The polarity changes with locking and unlocking.
#5	#C1:5	Lock motor, deadlocks	U = 0 V or U = U_bat , depending on lock command.	U = 0 V or U = U_bat , depending on lock command.	The polarity changes with locking and unlocking. Blocked lock position is only available on vehicles of certain types.
#6	#C1:6	Reserve
#7	#C1:7	Reserve
#8	#C1:8	Communication LIN	U = 5 - 8 V	U = 5 - 8 V	Communication with driver's door control panel. Communication with control modules in rear doors.
#9	#C1:9	Hall sensor, signal 2	Pulsed signal	Pulsed signal	Pulse's high value > 4.1 V. Pulse's low value < 1.1 V.
#10	#C1:10	Hall sensor, signal 1	Pulsed signal	Pulsed signal	Pulse's high value > 4.1 V. Pulse's low value < 1.1 V.
#11	#C1:11	Reserve
#12	#C1:12	Window motor, terminal B (up)	U = 0 V	U=0 V / U=U_bat	Normally the motor is connected so that terminal B (high signal) raises the window.
#13	#C1:13	Ground	U = 0 V	U = 0 V
#14	#C1:14	Locking feedback, ground	U = 0 V	U = 0 V
#15	#C1:15	Reserve
#16	#C1:16	Reserve
#17	#C1:17	Hall sensor, ground	U = 0 V	U = 0 V
#18	#C1:18	Reserve
#19	#C1:19	Unlocking, feedback	0 V at unlocked position U_bat in locked position	0 V at unlocked position U_bat in locked position	The control module interprets breaks in the line as the door being locked.
#20	#C1:20	Reserve
#21	#C1:21	Power supply, Hall sensor	U = 0 V	U = U_bat
#22	#C1:22	Reserve

SIGNAL TABLE

Connector C1, rear door
Breakout box terminal	Control module terminal	Signal type	Ignition off Inactive/active	Ignition on Inactive/active	Miscellaneous
#1	#C1:1	Window motor down	U = 0 V	U=0 V / U=U_bat	Normally the motor is connected so that terminal A (high signal) lowers the window.
#2	#C1:2	Control module power supply	U = U_bat	U = U_bat
#3	#C1:3	Central locking	U = 0 V or U = U_bat , depending on lock command.	U = 0 V or U = U_bat , depending on lock command.	The polarity changes with locking and unlocking.
#4	#C1:4	Lock motor, common	U = 0 V or U = U_bat , depending on lock command.	U = 0 V or U = U_bat , depending on lock command.	The polarity changes with locking and unlocking.
#5	#C1:5	Lock motor, child safety locks	U = 0 V or U = U_bat , depending on lock command.	U = 0 V or U = U_bat , depending on lock command.	The polarity changes with locking and unlocking. Child-proof lock position is only available on vehicles of certain types.
#6	#C1:6	Status door lock, LED indicator	U = 0 V / U = U_bat	U = 0 V / U = U_bat	Only certain types of vehicle.
#7	#C1:7	Control panel illumination	U = 0 V / U = U_bat	U = 0 V / U = U_bat
#8	#C1:8	Power supply, Hall sensor	U = 0 V	U = U_bat
#9	#C1:9	Hall sensor 2	Pulsed signal	Pulsed signal	Pulse's high value > 4.1 V. Pulse's low value < 1.1 V.
#10	#C1:10	Hall sensor 1	Pulsed signal	Pulsed signal	Pulse's high value > 4.1 V. Pulse's low value < 1.1 V.
#11	#C1:11	Signal from local control, window down	U=U_bat /U=0 V	U=U_bat /U=0 V	Active when operating the window down, and at automatic window operation.
#12	#C1:12	Window motor, up	U = 0 V	U=0 V / U=U_bat	Normally the motor is connected so that terminal B (high signal) raises the window.
#13	#C1:13	Ground	U = 0 V	U = 0 V
#14	#C1:14	Hall sensor, ground	U = 0 V	U = 0 V	Note. Used as common ground point for several switches.
#15	#C1:15	Lock control local, locking	U=U_bat /U=0 V	U=U_bat /U=0 V	Only certain types of vehicle.
#16	#C1:16	Reserve
#17	#C1:17	Reserve
#18	#C1:18	Reserve
#19	#C1:19	Child safety lock, feedback	U=U_bat /U=0 V	U=U_bat /U=0 V	Only certain types of vehicle. Broken circuit means that the control circuit interprets the lock as unlocked.
#20	#C1:20	Reconnecting lock	Unlocked: U = 0 V / Locked: U = U_bat	Unlocked: U = 0 V / Locked: U = U_bat	Broken circuit means that the control circuit interprets the lock as locked.
#21	#C1:21	Communication cable, LIN	U = 5 - 8 V	U = 5 - 8 V
#22	#C1:22	Signal from local control, window up	U=U_bat /U=0 V	U=U_bat /U=0 V	Active when operating the window up, and at automatic window control.

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

Fig 2: Driver Door Module (DDM), Passenger Door Module (PDM)

Courtesy of VOLVO CARS CORPORATION

Connector C2, front door
Breakout box terminal	Control module terminal	Signal type	Ignition off Inactive/active	Ignition on Inactive/active	Miscellaneous
#31	C2:1	Communication cable, CAN_H	U = 1.5 - 2.5 V	U = 1.5 - 2.5 V
#32	C2:2	Reserve
#33	C2:3	Lock indication, LED	U = 0 V / U = U_bat	U = 0 V / U = U_bat	Only certain types of vehicle.
#34	C2:4	Lighting, local control	U=0 V / U=U_bat	U=0 V / U=U_bat
#35	C2:5	Turn signal lamp (door mirrors), voltage supply	U = 0 V	U=0 V / U=U_bat
#36	C2:6	Surroundings lighting, power supply	U = 0 V	U=0 V / U=U_bat
#37	C2:7	Door mirror defroster, power supply	U = 0 V	U = 0 / U = U_bat
#38	C2:8	Door mirror, extending / Mirror motor up/down	U = 0 V	U = 0 V or U = U_bat , depending on command.	Extending rearview mirror together with signal C2:11 / Mirror motor up/down together with signal C2:9
#39	C2:9	Mirror motor, common	U = 0 V	U = 0 V or U = U_bat , depending on command.	Mirror right/left together with C2:10. Mirror up/down together with C2:8.
#40	C2:10	Mirror motor left/right	U = 0 V	U = 0 V or U = U_bat , depending on command.	Mirror right/left together with C2:9.
#41	C2:11	Door mirror, retracting	U = 0 V	U = 0 V or U = U_bat , depending on command.	Folding out/in mirror together with C2:8.
#42	C2:12	Door mirror potentiometer (up/down)	U = 0 V	U=0V-5V	Only certain types of vehicle.
#43	C2:13	Communication cable, CAN_L	U = 1.5 - 2.5 V	U = 1.5 - 2.5 V
#44	C2:14	Lock control local, locking	U=U_bat /U=0 V	U=U_bat /U=0 V	Not always used on passenger side, depending on vehicle version.
#45	C2:15	Lock control local, unlocking	U=U_bat /U=0 V	U=U_bat /U=0 V	Not always used on passenger side, depending on vehicle version.
#46	C2:16	Control window, ground (passenger side) Control panel, ground (driver's side)	U = 0 V	U = 0 V
#47	C2:17	Central locking control, ground	U = 0 V	U = 0 V	Not always used on passenger side, depending on vehicle version.
#48	C2:18	Door mirror, ground	U = 0 V	U = 0 V
#49	C2:19	Mirror potentiometer, ground	U = 0 V	U = 0 V	Only certain types of vehicle.
#50	C2:20	Reserve
#51	C2:21	Signal from local control, window down	U=U_bat /U=0 V	U=U_bat /U=0 V	Active when operating the window up, and at automatic window control. Passenger side.
#52	C2:22	Signal from local control, window up	U=U_bat /U=0 V	U=U_bat /U=0 V	Active when operating the window up, and at automatic window control. Passenger side.
#53	C2:23	Mirror potentiometer, voltage feed	U = 0 V	U = 5 V	Only certain types of vehicle.
#54	C2:24	Door mirror potentiometer left/right	U = 0 V	U=0V-5V	Only certain types of vehicle.