Signal Specification

General

All values specified below are between the relevant terminal and terminal #A8 (power ground).

NOTE:

It is important to check ground terminals before taking readings.

Fig 1: Identifying Connector A

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SIGNAL TABLE CONNECTOR A

Control module terminal	Signal type	Ignition off	Ignition on	Other
#A1	15 supply	U _low	U _bat	Ignition position II and III.
#A2	-	-	-	-
#A3	-	-	-	-
#A4	-	-	-	-
#A5	-	-	-	-
#A6	-	-	-	-
#A7	CAN L	-	-	During communication the voltage is 1.0-2.5 V.
#A8	Ground	U _low	U _low	-
#A9	-	-	-	-
#A10	-	-	-	-
#A11	-	-	-	-
#A12	-	-	-	-
#A13	-	-	-	-
#A14	CAN H	-	-	During communication the voltage is 2.5-4.0 V.
#A15	-	-	-	-
#A16	-	-	-	-

Fig 2: Identifying Connector B

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SIGNAL TABLE CONNECTOR B, CENTER TERMINAL

Control module terminal	Signal type	Ignition off	Ignition on	Other
#B1	Signal ground, front parking sensor	U _low	U _low	-
#B2	Voltage supply, front parking sensors	U _low	U _bat	-
#B3	-	-	-	-
#B4	-	-	-	-
#B5	Signal, parking sensor 8 (outer left front)	-	-	-
#B6	Signal, parking sensor 7 (inner left front)	-	-	-
#B7	Signal, parking sensor 6 (inner right front)	-	-	-
#B8	Signal, parking sensor 5 (outer right front)	-	-	-
#B9	-	-	-	-
#B10	-	-	-	-
#B11	-	-	-	-
#B12	-	-	-	-

Fig 3: Identifying Connector C

Courtesy of VOLVO CARS CORPORATION

SIGNAL TABLE CONNECTOR C

Control module terminal	Signal type	Ignition off	Ignition on	Other
#C1	-	-	-	-
#C2	Signal, parking sensor 3 (inner right rear)	-	-	-
#C3	Signal, parking sensor 2 (inner left rear)	-	-	-
#C4	Signal, parking sensor 4 (outer right rear)	-	-	-
#C5	Signal, parking sensor 1 (outer left rear)	-	-	-
#C6	-	-	-	-
#C7	-	-	-	-
#C8	Signal ground, rear parking sensors	U _low	U _low	-
#C9	-	-	-	-
#C10	-	-	-	-
#C11	Voltage supply, rear parking sensors	U _low	U _bat	-
#C12	-	-	-	-