| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | A | Terminal 50 | Starter relay |
| | | |
| 2 | E | Terminal 30 | Fuse F114 Ignition switch |
| | | |
| 3 | | Not used | |
| | | |
| 4 | A | Signal, antitheft alarm system | Engine control module (DME) |
| | | |
| 5 | A | Signal, ring coil ignition lock | Collector ring |
| | | |
| 6 | E | Transmission range switch position L2 signal | Transmission control module (AGS) |
| | | |
| 7 | E | P/N signal | Cruise control module (Tempomat) |
| | | |
| 8 | | Not used | |
| | | |
| 9 | M | Ground | Ground splice |
| | | |
| 10 | E | Terminal 30 voltage supply | Fuse F26 |
| | | |
| 11 | E | Terminal R | Fuse F44 |
| | | |
| 12 | E | Signal, ring coil ignition lock | Collector ring |
| | | |
| 13 | E/A | K-bus signal line | Integrated instrument cluster control module (IKE) |
| | | |