| Number | X-pin, colour | Description |
|---|
| X13989 | 8-pin, black | Component connector Seat module, front left |
| X13999 | 4-pin, green | Component connector Seat module, front left |
| X13997 | 4-pin, violet | Component connector Seat module, front left |
| X13987 | 5-pin, natural | Component connector Seat module, front left |
| X13995 | 4-pin, blue | Component connector Seat module, front left |
| X13534 | 20-pin, natural | Component connector Seat module, front left |
| X13985 | 5-pin, black | Component connector Seat module, front left |
| X13532 | 26-pin, black | Component connector Seat module, front left |
| X13993 | 4-pin, white | Component connector Seat module, front left |
| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | A | Signal, motor, seat forward/backward adjustment | Drive, driver's seat forward/backward adjustment |
| | | |
| 2 | E | Hall sensor signal, seat forward/backward adjustment | Drive, driver's seat forward/backward adjustment |
| | | |
| 3 | A | Signal, motor, seat forward/backward adjustment | Drive, driver's seat forward/backward adjustment |
| | | |
| 4 | E | Hall sensor signal, seat forward/backward adjustment | Drive, driver's seat forward/backward adjustment |
| | | |
| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | M | Ground Driver's seat backrest heating | 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 | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | A | Signal, motor, seat tilt adjustment | Drive, driver's seat angle adjustment |
| | | |
| 2 | E | Hall sensor signal, seat angle adjustment | Drive, driver's seat angle adjustment |
| | | |
| 3 | A | Signal, motor, seat tilt adjustment | Drive, driver's seat angle adjustment |
| | | |
| 4 | E | Hall sensor signal, seat angle adjustment | Drive, driver's seat angle adjustment |
| | | |
| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | A | Signal Drive, driver's seat backrest angle adjustment | Drive, driver's seat backrest angle adjustment |
| | | |
| 2 | E | Signal, Hall sensor | Drive, driver's seat backrest angle adjustment |
| | | |
| 3 | M | Ground, Hall sensor | Drive, driver's seat backrest angle adjustment |
| | | |
| 4 | E | Hall sensor signal, backrest head adjustment | Motor, backrest head adjustment, front left |
| | | |
| 5 | M | Ground, Hall sensor | Motor, backrest head adjustment, front left |
| | | |
| 6 | | Not used | |
| | | |
| 7 | | Not used | |
| | | |
| 8 | M | Ground, Hall sensor | Drive, driver's seat head restraint adjustment |
| | | |
| 9 | E | Hall sensor signal, head restraint adjustment | Drive, driver's seat head restraint adjustment |
| | | |
| 10 | M | Ground, Hall sensor | Motor, backrest width adjustment, front left |
| | | |
| 11 | E | Signal, Hall sensor | Motor, backrest width adjustment, front left |
| | | |
| 12 | A | Signal Motor, backrest width adjustment, front left | Motor, backrest width adjustment, front left |
| | | |
| 13 | A | Signal Drive, driver's seat backrest angle adjustment | Drive, driver's seat backrest angle adjustment |
| | | |
| 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 | Drive, driver's seat head restraint adjustment |
| | | |
| 19 | A | Signal, motor, head restraint adjustment | Drive, driver's seat head restraint adjustment |
| | | |
| 20 | A | Signal Motor, backrest width adjustment, front left | Motor, backrest width adjustment, front left |
| | | |
| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | M | Ground Driver's seat cushion heating | 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 | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | M | Ground Fan 1, seat cushion front left | Fan 1, seat cushion front left |
| | | |
| 2 | A | Supply Fan 1, seat cushion front left | Fan 1, seat cushion front left |
| | | |
| 3 | A | Signal Fan 1, seat cushion front left | Fan 1, seat cushion front left |
| | | |
| 4 | M | Motor signal, hydraulics negative | Drive for driver's seat lumbar support |
| | | |
| 5 | M | Ground Valve block, front left lumbar support | Valve block, front left lumbar support |
| | | |
| 6 | | Not used | |
| | | |
| 7 | | Not used | |
| | | |
| 8 | | Not used | |
| | | |
| 9 | | Not used | |
| | | |
| 10 | M | Ground | Active seat, front left |
| | | |
| 11 | A | Signal, pressure sensor | Active seat, front left |
| | | |
| 12 | | Not used | |
| | | |
| 13 | | Not used | |
| | | |
| 14 | A | Signal Fan 1, driver's seat backrest | Fan 1, driver's seat backrest |
| | | |
| 15 | A | Supply Fan 1, driver's seat backrest | Fan 1, driver's seat backrest |
| | | |
| 16 | M | Ground Fan 1, driver's seat backrest | Fan 1, driver's seat 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 | Motor signal, hydraulics positive | Drive for driver's seat lumbar support |
| | | |
| 22 | | Not used | |
| | | |
| 23 | M | Signal, solenoid valve, negative | Active seat, front left |
| | | |
| 24 | A | Signal, solenoid valve, positive | Active seat, front left |
| | | |
| 25 | M | Motor signal, hydraulics negative | Active seat, front left |
| | | |
| 26 | A | Motor signal, hydraulics positive | Active seat, 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 | Ground, Hall sensor | 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 |
| | | |