| Number | X-pin, colour | Description |
|---|
| X279 | 8-pin, black | Component connector Seat module, front left |
| X13533 | 26-pin, black | Component connector Seat module, front left |
| X18179 | 5-pin, black | Component connector Seat module, front left |
| X13537 | 5-pin, natural | Component connector Seat module, front left |
| X13897 | 4-pin, green | Component connector Seat module, front left |
| X13535 | 20-pin, black | Component connector Seat module, front left |
| X13899 | 4-pin, blue | Component connector Seat module, front left |
| X13903 | 4-pin, green | Component connector Seat module, front left |
| X13901 | 4-pin, green | Component connector Seat module, front left |
| 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, front left lumbar support |
| | | |
| 6 | | Not used | |
| | | |
| 7 | | Not used | |
| | | |
| 8 | | Not used | |
| | | |
| 9 | | Not used | |
| | | |
| 10 | | Not used | |
| | | |
| 11 | E | Signal, pressure sensor | Driver's active seat |
| | | |
| 12 | | Not used | |
| | | |
| 13 | | Not used | |
| | | |
| 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, front left lumbar support |
| | | |
| 18 | A | Signal, valve 4 | Valve block, front left lumbar support |
| | | |
| 19 | A | Signal, valve 1 | Valve block, front left lumbar support |
| | | |
| 20 | A | Signal, valve 2 | Valve block, front left lumbar support |
| | | |
| 21 | A | Lumbar support, active seat pump, positive | Lumbar support-active seat drive unit, driver |
| | | |
| 22 | | Not used | |
| | | |
| 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 | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | A | Signal, rapid heating area | Seat cushion heating, front left |
| | | |
| 2 | E | Signal, heating area sensor | Seat cushion heating, front left |
| | | |
| 3 | E | Signal, heating area sensor | Seat cushion heating, front left |
| | | |
| 4 | A | Signal, rapid heating area | Seat cushion heating, front left |
| | | |
| 5 | A | Signal, remaining heating area | Seat cushion heating, front left |
| | | |
| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | A | Signal, rapid heating area | Seat backrest heating, front left |
| | | |
| 2 | E | Signal, heating area sensor | Seat backrest heating, front left |
| | | |
| 3 | E | Signal, heating area sensor | Seat backrest heating, front left |
| | | |
| 4 | A | Signal, rapid heating area | Seat backrest heating, front left |
| | | |
| 5 | A | Signal, remaining heating area | Seat backrest heating, front left |
| | | |
| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | A | Signal, motor, seat depth adjustment | Motor, seat depth adjustment, front left |
| | | |
| 2 | E | Hall sensor signal, seat depth adjustment | Motor, seat depth adjustment, front left |
| | | |
| 3 | A | Signal, motor, seat depth adjustment | Motor, seat depth adjustment, front left |
| | | |
| 4 | E | Hall sensor signal, seat depth adjustment | Motor, seat depth adjustment, front left |
| | | |
| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | A | Signal, motor, seat backrest adjustment | Motor, backrest angle adjustment, front left |
| | | |
| 2 | E | Hall sensor signal, seat backrest adjustment | Motor, backrest angle adjustment, front left |
| | | |
| 3 | E | Hall sensor signal, seat backrest adjustment | Motor, backrest angle adjustment, front left |
| | | |
| 4 | E | Hall sensor signal, backrest head adjustment | Motor, backrest head adjustment, front left |
| | | |
| 5 | E | Hall sensor signal, backrest head adjustment | Motor, backrest head adjustment, front left |
| | | |
| 6 | | Not used | |
| | | |
| 7 | | Not used | |
| | | |
| 8 | E | Hall sensor signal, head restraint adjustment | Motor, head restraint adjustment, front left |
| | | |
| 9 | E | Hall sensor signal, head restraint adjustment | Motor, head restraint adjustment, front left |
| | | |
| 10 | E | Hall sensor signal, backrest width adjustment | Motor, backrest width adjustment, front left |
| | | |
| 11 | E | Hall sensor signal, backrest width adjustment | Motor, backrest width adjustment, front left |
| | | |
| 12 | A | Signal Motor, backrest width adjustment, front left | Motor, backrest width adjustment, front left |
| | | |
| 13 | A | Signal, motor, seat backrest adjustment | Motor, backrest angle adjustment, front left |
| | | |
| 14 | A | Signal, motor, backrest head adjustment | Motor, backrest head adjustment, front left |
| | | |
| 15 | A | Signal, motor, backrest head adjustment | Motor, backrest head adjustment, front left |
| | | |
| 16 | | Not used | |
| | | |
| 17 | | Not used | |
| | | |
| 18 | A | Signal, motor, head restraint adjustment | Motor, head restraint adjustment, front left |
| | | |
| 19 | A | Signal, motor, head restraint adjustment | Motor, head restraint adjustment, front left |
| | | |
| 20 | A | Signal Motor, backrest width adjustment, front left | Motor, backrest width adjustment, front left |
| | | |
| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | A | Signal, motor, seat tilt adjustment | Motor, seat tilt adjustment, front left |
| | | |
| 2 | E | Hall sensor signal, seat angle adjustment | Motor, seat tilt adjustment, front left |
| | | |
| 3 | A | Signal, motor, seat tilt adjustment | Motor, seat tilt adjustment, front left |
| | | |
| 4 | E | Hall sensor signal, seat angle adjustment | Motor, seat tilt adjustment, front left |
| | | |
| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | A | Signal, motor, seat forward/backward adjustment | Motor, seat forward/backward adjustment, front left |
| | | |
| 2 | E | Hall sensor signal, seat forward/backward adjustment | Motor, seat forward/backward adjustment, front left |
| | | |
| 3 | A | Signal, motor, seat forward/backward adjustment | Motor, seat forward/backward adjustment, front left |
| | | |
| 4 | E | Hall sensor signal, seat forward/backward adjustment | Motor, seat forward/backward adjustment, front left |
| | | |
| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | A | Signal Motor, seat height adjustment, front left | Motor, seat height adjustment, front left |
| | | |
| 2 | E | Hall sensor signal, seat height adjustment | Motor, seat height adjustment, front left |
| | | |
| 3 | A | Signal Motor, seat height adjustment, front left | Motor, seat height adjustment, front left |
| | | |
| 4 | E | Hall sensor signal, seat height adjustment | Motor, seat height adjustment, front left |
| | | |