A187 Driver's seat module

Connector overview

Number	X-pin, color	Description
X275	8-pin, black	Component connector Driver's seat module
X13532	26-pin, black	Component connector Driver's seat module
X18178	5-pin, black	Component connector Driver's seat module
X13536	5-pin, natural	Component connector Driver's seat module
X13896	4-pin, green	Component connector Driver's seat module
X13534	20-pin, black	Component connector Driver's seat module
X13898	4-pin, blue	Component connector Driver's seat module
X13902	4-pin, green	Component connector Driver's seat module
X13900	4-pin, green	Component connector Driver's seat module

Pin assignments X275

Pin	Type	Description / Signal type	Connection / Measuring notes
1		Not occupied

2		Not occupied

3		Not occupied

4		Not occupied

5	A/E	Bus signal	CAN-bus connector

6	A/E	Bus signal	CAN-bus connector

7	E	Supply, terminal 30	Fuse distribution box

8	M	Ground	Ground point

Pin assignments X13532

Pin	Type	Description / Signal type	Connection / Measuring notes
1	A	Signal, fan motor	Fan motor, seat cushion

2	A	Positive supply, fan motor	Fan motor, seat cushion

3	M	Ground, fan motor	Fan motor, seat cushion

4	M	Lumbar support, active seat pump, changeover signal	Lumbar support-active seat drive unit, driver

5	M	Valve block for lumbar support, negative	Valve block, driver's lumbar support

6		Not occupied

7		Not occupied

8		Not occupied

9		Not occupied

10		Not occupied

11	E	Signal, pressure sensor	Driver's active seat

12		Not occupied

13		Not occupied

14	A	Signal, fan motor	Fan motor, backrest

15	A	Positive supply, fan motor	Fan motor, backrest

16	M	Ground, fan motor	Fan motor, backrest

17	A	Signal, valve 3	Valve block, driver's lumbar support

18	A	Signal, valve 4	Valve block, driver's lumbar support

19	A	Signal, valve 1	Valve block, driver's lumbar support

20	A	Signal, valve 2	Valve block, driver's lumbar support

21	A	Lumbar support, active seat pump, positive	Lumbar support-active seat drive unit, driver

22		Not occupied

23	M	Ground Driver's active seat	Driver's active seat

24	A	Lumbar support, active seat pump, changeover signal	Lumbar support-active seat drive unit, driver

25	A	Cam motor, positive	Driver's active seat

26	E	Cam sensor signal	Driver's active seat

Pin assignments X18178

Pin	Type	Description / Signal type	Connection / Measuring notes
1	A	Signal, rapid heating area	Driver's seat cushion heating

2	E	Signal, heating area sensor	Driver's seat cushion heating

3	E	Signal, heating area sensor	Driver's seat cushion heating

4	A	Signal, rapid heating area	Driver's seat cushion heating

5	A	Signal, remaining heating area	Driver's seat cushion heating

Pin assignments X13536

Pin	Type	Description / Signal type	Connection / Measuring notes
1	A	Signal, rapid heating area	Driver's seat backrest heating

2	E	Signal, heating area sensor	Driver's seat backrest heating

3	E	Signal, heating area sensor	Driver's seat backrest heating

4	A	Signal, rapid heating area	Driver's seat backrest heating

5	A	Signal, remaining heating area	Driver's seat backrest heating

Pin assignments X13896

Pin	Type	Description / Signal type	Connection / Measuring notes
1	A	Signal, motor, seat depth adjustment	Motor, driver's seat depth adjustment

2	E	Hall sensor signal, seat depth adjustment	Motor, driver's seat depth adjustment

3	A	Signal, motor, seat depth adjustment	Motor, driver's seat depth adjustment

4	E	Hall sensor signal, seat depth adjustment	Motor, driver's seat depth adjustment

Pin assignments X13534

Pin	Type	Description / Signal type	Connection / Measuring notes
1	A	Signal, motor, seat backrest adjustment	Motor, driver's seat backrest angle adjustment

2	E	Hall sensor signal, seat backrest adjustment	Motor, driver's seat backrest angle adjustment

3	E	Hall sensor signal, seat backrest adjustment	Motor, driver's seat backrest angle adjustment

4	E	Hall sensor signal, backrest head adjustment	Motor, backrest head adjustment, driver's seat

5	E	Hall sensor signal, backrest head adjustment	Motor, backrest head adjustment, driver's seat

6		Not occupied

7		Not occupied

8	E	Hall sensor signal, head restraint adjustment	Motor, driver's seat head restraint adjustment

9	E	Hall sensor signal, head restraint adjustment	Motor, driver's seat head restraint adjustment

10	E	Hall sensor signal, backrest width adjustment	Motor, backrest width adjustment, driver's seat

11	E	Hall sensor signal, backrest width adjustment	Motor, backrest width adjustment, driver's seat

12	A	Signal Motor, backrest width adjustment, driver's seat	Motor, backrest width adjustment, driver's seat

13	A	Signal, motor, seat backrest adjustment	Motor, driver's seat backrest angle adjustment

14	A	Signal, motor, backrest head adjustment	Motor, backrest head adjustment, driver's seat

15	A	Signal, motor, backrest head adjustment	Motor, backrest head adjustment, driver's seat

16		Not occupied

17		Not occupied

18	A	Signal, motor, head restraint adjustment	Motor, driver's seat head restraint adjustment

19	A	Signal, motor, head restraint adjustment	Motor, driver's seat head restraint adjustment

20	A	Signal Motor, backrest width adjustment, driver's seat	Motor, backrest width adjustment, driver's seat

Pin assignments X13898

Pin	Type	Description / Signal type	Connection / Measuring notes
1	A	Signal, motor, seat tilt adjustment	Motor, driver's seat tilt adjustment

2	E	Hall sensor signal, seat angle adjustment	Motor, driver's seat tilt adjustment

3	A	Signal, motor, seat tilt adjustment	Motor, driver's seat tilt adjustment

4	E	Hall sensor signal, seat angle adjustment	Motor, driver's seat tilt adjustment

Pin assignments X13902

Pin	Type	Description / Signal type	Connection / Measuring notes
1	A	Signal, motor, seat forward/backward adjustment	Motor, driver's seat forward/backward adjustment

2	E	Hall sensor signal, seat forward/backward adjustment	Motor, driver's seat forward/backward adjustment

3	A	Signal, motor, seat forward/backward adjustment	Motor, driver's seat forward/backward adjustment

4	E	Hall sensor signal, seat forward/backward adjustment	Motor, driver's seat forward/backward adjustment

Pin assignments X13900

Pin	Type	Description / Signal type	Connection / Measuring notes
1	A	Signal Motor, driver's seat height adjustment	Motor, driver's seat height adjustment

2	E	Hall sensor signal, seat height adjustment	Motor, driver's seat height adjustment

3	A	Signal Motor, driver's seat height adjustment	Motor, driver's seat height adjustment

4	E	Hall sensor signal, seat height adjustment	Motor, driver's seat height adjustment