| Number | X-pin, colour | Description |
|---|---|---|
| X10334 | 5-pin, yellow | Component connector Steering column switch cluster |
| X1880 | 8-pin, black | Component connector Steering column switch cluster |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | A/E | Signal, byte-flight bus | Safety information module (SIM) |
| 2 | E | Supply, ISIS | Safety information module (SIM) |
| 3 | M | Ground, ISIS | Ground point |
| 4 | Not used | ||
| 5 | Not used | ||
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | M | Ground | Ground point |
| 2 | E | Supply, terminal 30 | Fuse F12 |
| 3 | A | Signal, fanfare horn | Fanfare horn, left (low-pitched) |
| 4 | A | Signal, fanfare horn | Fanfare horn, right (high-pitched) |
| 5 | Not used | ||
| 6 | A | Signal, direction indicator/dip switch | Light module |
| 7 | E | Supply, terminal 15 | Car access control unit |
| 8 | A | Signal, gear selector switch | Mechatronics (EGS) |