Signal Specification, Keyless Vehicle Module (KVM)

All values given below are between the terminals stated in column 1 and terminal #B4 (power ground). This applies unless otherwise indicated in brackets.

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

U=	DC voltage in volts (V)	-	-
U_bat =	Battery voltage (V)	-	-
U_low =	Voltage approximately 0 V	-	-

Connector A

Fig 1: Keyless Vehicle Module (KVM)

Courtesy of VOLVO CARS CORPORATION

Connector A
Breakout box terminal	Control module terminal	Signal type	Active/Not active	Miscellaneous
#C1	#A1	Signal cable inner antenna in the passenger compartment (middle) (-)	f= 125 kHz U= 300 Vpp The signal is difficult to measure.	Located under the carpet between the center console and the rear seat. Only active when searching for remote keys. Otherwise 0 V.
#C2	#A2	Signal cable inner antenna in the passenger compartment (front) (+)	f= 125 kHz U= 300 Vpp The signal is difficult to measure.	Located under the carpet in front of the center panel. Only active when searching for keys. Otherwise 0 V.
#C3	#A3	Signal cable external left-hand antenna (+)	f= 125 kHz U= 300 Vpp The signal is difficult to measure.	Placed in the outer door handle in the left-hand front door.
#C4	#A4	Reserve	-	-
#C5	#A5	Reserve	-	-
#C6	#A6	Not connected	-	-
#C7	#A7	Not connected	-	-
#C8	#A8	Not connected	-	-
#C9	#A9	Not connected	-	-
#C10	#A10	Not connected	-	-
#C11	#A11	Not connected	-	-
#C12	#A12	Not connected	-	-
#C13	#A13	Not connected	-	-
#C14	#A14	The signal cable external right-hand antenna (-)	f= 125 kHz U= 300 Vpp The signal is difficult to read	Placed in the outer door handle in the right-hand front door. (+) for C30 Only active when searching for remote keys. Otherwise 0 V.
#C15	#A15	Signal cable external left-hand antenna (-)	f= 125 kHz U= 300 Vpp The signal is difficult to measure.	Placed in the outer door handle in the left-hand front door. (+) for C30 Only active when searching for remote keys. Otherwise 0 V.
#C16	#A16	Reserve	-	-
#C17	#A17	Signal cable inner antenna in the passenger compartment (middle) (+)	f= 125 kHz U= 300 Vpp The signal is difficult to measure.	Located under the carpet between the center console and the rear seat. Only active when searching for remote keys. Otherwise 0 V.
#C18	#A18	Signal cable inner antenna passenger compartment (front) (-)	f= 125 kHz U= 300 Vpp The signal is difficult to measure.	Located under the carpet in front of the center panel. Only active when searching for keys. Otherwise 0 V.
#C19	#A19	Reserve	-	-
#C20	#A20	Reserve	-	-
#C21	#A21	Signal cable outer antenna rear (+)	f= 125 kHz U= 300 Vpp The signal is difficult to read	Located in the rear bumper. Only active when searching for remote keys. Otherwise 0 V. (-) for the C30.
#C22	#A22	Signal cable to external antenna rear (-).	f= 125 kHz U= 300 Vpp The signal is difficult to measure.	Located in the rear bumper. Only active when searching for remote keys. Otherwise 0 V. (+) for C30.
#C23	#A23	The signal cable external right-hand antenna (+)	f= 125 kHz U= 300 Vpp The signal is difficult to measure.	For the C30: Placed in the outer door handle in the right-hand front door. (-) for C30 Only active when searching for remote keys. Otherwise 0 V.

Connector B

Fig 2: Keyless Vehicle Module (KVM)

Courtesy of VOLVO CARS CORPORATION

Connector B
Breakout box terminal	Control module terminal	Signal type	Active/Not active	Miscellaneous
#B24	#B1	Reserve	-	-
#B25	#B2	- supply for quick lock left rear (+)	> 10.5 V / < 1.5 V	-
#B26	#B3	Supply for quick lock right rear (+)	> 10.5 V / < 1.5 V	-
#B27	#B4	Supply for quick lock left front (+)	> 10.5 V / < 1.5 V	Active for approximately 0.5 seconds when opening doors.
#B28	#B5	Supply for quick lock right front (+)	> 10.5 V / < 1.5 V	Active for approximately 0.5 seconds when opening doors.
#B29	#B6	Not connected	-	-
#B30	#B7	Not connected	-	-
#B31	#B8	Not connected	-	-
#B32	#B9	Not connected	-	-
#B33	#B10	Not connected	-	-
#B34	#B11	Not connected	-	-
#B35	#B12	Not connected	-	-
#B36	#B13	Not connected	-	-
#B37	#B14	Signal cable inner antenna in the passenger compartment (rear) (+)	f= 125 kHz U= 300 Vpp The signal is difficult to measure.	Located under the carpet in the cargo compartment. Only active when searching for remote keys. Otherwise 0 V. Spare on C30
#B38	#B15	Signal cable inner antenna in the passenger compartment (rear) (-)	f= 125 kHz U= 300 Vpp The signal is difficult to measure.	Only S40 and C70. Located under the carpet in the luggage compartment. Only active when searching for remote keys. Otherwise 0 V.
#B39	#B16	Reserve	-	-
#B40	#B17	Signal cable inner antenna in the passenger compartment (rear) (-)	f= 125 kHz U= 300 Vpp The signal is difficult to measure.	Only the V50. Located under the carpet in the luggage compartment. Only active when searching for remote keys. Otherwise 0 V.
#B41	#B18	Not connected	-	-
#B42	#B19	Not connected	-	-
#B43	#B20	Not connected	-	-
#B44	#B21	Not connected	-	-
#B45	#B22	Not connected	-	-
#B46	#B23	Not connected	-	-

Connector C

Fig 3: Keyless Vehicle Module (KVM)

Courtesy of VOLVO CARS CORPORATION

Connector C
Breakout box terminal	Control module terminal	Signal type	Active/Not active	Miscellaneous
#B1	#C1	Power supply, quick lock right-hand rear (-)	U_low	Not C30.
#B2	#C2	Power supply, quick lock left-hand rear (-)	U_low	Not C30.
#B3	#C3	Reserve	-	-
#B4	#C4	Ground terminal	U_low	-
#B5	#C5	Power supply	U_bat	-
#B6	#C6	Not connected	-	-
#B7	#C7	Not connected	-	-
#B8	#C8	Not connected	-	-
#B9	#C9	Not connected	-	-
#B10	#C10	Not connected	-	-
#B11	#C11	Not connected	-	-
#B12	#C12	Not connected	-	-
#B13	#C13	Not connected	-	-
#B14	#C14	Not connected	-	-
#B15	#C15	Not connected	-	-
#B16	#C16	Not connected	-	-
#B17	#C17	Not connected	-	-
#B18	#C18	Reserve	-	-
#B19	#C19	Not connected	-	-
#B20	#C20	Not connected	-	-
#B21	#C21	Reserve	-	-
#B22	#C22	Not connected	-	-
#B23	#C23	Reserve	-	-

Connector D

Fig 4: Keyless Vehicle Module (KVM)

Courtesy of VOLVO CARS CORPORATION

Connector D
Breakout box terminal	Control module terminal	Signal type	Active/Not active	Miscellaneous
#A24	#D1	Power supply quick lock left front.	> 10.5 V / < 1.5 V	Active when opening doors
#A25	#D2	Power supply quick lock right front.	> 10.5 V / < 1.5 V	Active when opening doors.
#A26	#D3	LS-CAN H	2.5-4 V The signal is difficult to measure.	During communication.
#A27	#D4	LS-CAN L	2.5-1 V The signal is difficult to measure.	During communication.
#A28	#D5	Reserve	-	-
#A29	#D6	Not connected	-	-
#A30	#D7	Not connected	-	-
#A31	#D8	Reserve	-	-
#A32	#D9	Contact breaker in quick lock left front	U_low	Open circuit, Grounded when the handle is pulled out to its limit position
#A33	#D10	Reserve	-	-
#A34	#D11	Reserve	-	-
#A35	#D12	Reserve	-	-
#A36	#D13	Reserve	-	-
#A37	#D14	Signal cable Remote Keyless Entry (RKE)	0.5 V/1.5 V	Serial communication. Signals are difficult to read.
#A38	#D15	Indication of remote control in the starter module (Key In)	-	Signal from the central electronic module (CEM) when remote key is inserted in the starter module.
#A39	#D16	Reserve	-	-
#A40	#D17	Reserve	-	-
#A41	#D18	Reserve	-	-
#A42	#D19	Reserve	-	-
#A43	#D20	Reserve	-	-
#A44	#D21	Switch quick lock right rear	f= 125 kHz U= 300 Vpp (106 V_rms ) The signal is difficult to measure.	When fault-tracing the key. Reading taken against corresponding (-) terminal 0 V not active. Not C30
#A45	#D22	Switch quick lock right front	U_low	Open circuit, Grounded when the handle is pulled out to its limit position
#A46	#D23	Reserve	-	-

Connector E

Fig 5: Keyless Vehicle Module (KVM)

Courtesy of VOLVO CARS CORPORATION

Connector E
Breakout box terminal	Control module terminal	Signal type	Active/Not active	Miscellaneous
#A1	#E1	Reserve	-	-
#A2	#E2	Outer lock button right front	U_low	Open circuit. Indicates ground connection when button is depressed.
#A3	#E3	Contact breaker at clutch pedal	U_low	Closes when the clutch pedal is depressed to 75% of length of stroke.
#A4	#E4	Switch unlocking left rear	U_low	Open circuit. Indicates ground connection when pulling out the external door handle. Not C30
#A5	#E5	Outer lock button right rear	U_low	Open circuit. Indicates ground connection when button is depressed. Not C30
#A6	#E6	Not connected	-	-
#A7	#E7	Not connected	-	-
#A8	#E8	Not connected	-	-
#A9	#E9	Not connected	-	-
#A10	#E10	Not connected	-	-
#A11	#E11	Not connected	-	-
#A12	#E12	Not connected	-	-
#A13	#E13	Not connected	-	-
#A14	#E14	Contact breaker at brake pedal.	0 V / 5 V	Signal from the central electronic module (CEM) when brake pedal is depressed.
#A15	#E15	Switch quick lock left rear	U_low	Open circuit. Grounded when the handle is pulled out to its limit position. Not C30
#A16	#E16	Reserve	-	-
#A17	#E17	External lock button left rear	U_low	Open circuit. Indicates ground connection when button is depressed. Not C30
#A18	#E18	Switch unlocking luggage compartment lid	U_low	Open circuit. Indicates ground connection when pulling out the external door handle.
#A19	#E19	Outer lock button left front	U_low	Open circuit. Indicates ground connection when button is depressed.
#A20	#E20	Switch unlocking right rear.	U_low	Open circuit. Indicates ground connection when pulling out the external door handle. Not C30
#A21	#E21	Switch unlocking left front.	U_low	Open circuit. Indicates ground connection when pulling out the external door handle.
#A22	#E22	Switch unlocking right front.	U_low	Open circuit. Indicates ground connection when pulling out the external door handle.
#A23	#E23	Reserve	-	-