A81 Parking aid control unit

Plug connector overview

Number	X-pin, colour	Description
X300	12-pin, black	Plug connector Parking aid control unit
X18013	12-pin, natural	Plug connector Parking aid control unit
X18362	12-pin, blue	Plug connector Parking aid control unit

Pin	Type	Description / Signal type	Connection / Measuring notes
1	E	Terminal 15	Fuse F64

2	A	PDC loudspeaker activation	Parking aid speaker

3		Not used

4	E/A	I-bus signal line	I-bus connector

5		Not used

6	M	Control unit ground	Ground point

7	A	Visual switching signal for PDC switch	Passenger's back-rest adjustment switch

8	A	Ground for PDC loudspeaker	Parking aid speaker

9	A	Gong activation	Gong

10	A	Switching signal for PDC switch	Passenger's back-rest adjustment switch

11	A	Gong activation	Gong Japan

12		Not used

Pin	Type	Description / Signal type	Connection / Measuring notes
1	M	Ground, rear centre left converter	Rear centre left converter

2	M	Ground, rear right converter	Rear right converter

3	M	Ground, rear left converter	Rear left converter

4	A	Positive activation, rear centre right converter	Rear centre right converter

5	A	Positive activation, rear centre left converter	Rear centre left converter

6	A	Positive activation, rear right converter	Rear right converter

7	M	Ground, rear centre right converter	Rear centre right converter

8	A	Signal line, rear centre right converter	Rear centre right converter

9	A	Signal line, rear centre left converter	Rear centre left converter

10	A	Signal line, rear right converter	Rear right converter

11	A	Signal line, rear left converter	Rear left converter

12	A	Positive activation, rear left converter	Rear left converter

Pin	Type	Description / Signal type	Connection / Measuring notes
1	M	Ground, front centre left converter	Front centre left converter

2	M	Ground, front right converter	Front right converter

3	M	Ground, front left converter	Front left converter

4	A	Positive activation, front centre right converter	Front centre right converter

5	A	Positive activation, front centre left converter	Front centre left converter

6	A	Positive activation, front right converter	Front right converter

7	M	Ground, front centre right converter	Front centre right converter

8	A	Signal line, front centre right converter	Front centre right converter

9	A	Signal line, front centre left converter	Front centre left converter

10	A	Signal line, front right converter	Front right converter

11	A	Signal line, front left converter	Front left converter

12	A	Positive activation, front left converter	Front left converter