| Number | X-pin, colour | Description |
|---|---|---|
| X10113 | 18-pin, natural | Plug connector 3 Integrated electronic control unit (IKE) |
| X10114 | 26-pin, blue | Plug connector 4 Integrated electronic control unit (IKE) |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | E/A | Diagnostic link TXD | Diagnostic connector |
| 2 | E | Coding signal | Electronic immobilizer control unit (EWS) |
| 3 | A | Speedometer (A) output signal | DME control unit |
| 4 | Not used | ||
| 5 | Not used | ||
| 6 | Not used | ||
| 7 | A | K-bus signal line | K-bus connector |
| 8 | E/A | I-bus signal line | I-bus connector |
| 9 | M | Control unit ground | Ground connector |
| 10 | M | Control unit ground | Ground connector |
| 11 | A | Activation, tone 3 acoustic generator | Gong |
| 12 | E | Terminal R | Fuse F38 |
| 13 | A | Instrument cluster interface | AGS transmission control unit |
| 14 | E | Start position, terminal 30h | Starter |
| 15 | E | Terminal 30 | Fuse F24 |
| 16 | E | Terminal 15 | Fuse F18 |
| 17 | A | Activation, tone 2 acoustic generator | Gong |
| 18 | A | Activation, tone 1 acoustic generator | Gong |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | E | Rear left speed signal | ABS/ASC control unit |
| 2 | Not used | ||
| 3 | E | TD signal (engine speed) | DME control unit |
| 4 | E | Brake pad wear indicator | Brake pad sensor |
| 5 | E | BC remote control | Turn indicator/low beam selector |
| 6 | Not used | ||
| 7 | E | Tank content I | Electrical fuel pump (EKP I) |
| 8 | Not used | ||
| 9 | Not used | ||
| 10 | Not used | ||
| 11 | Not used | ||
| 12 | A | Sensor ground I | Electrical fuel pump (EKP I) |
| 13 | E | TI signal (injection signal) | DME control unit |
| 14 | E | Outside temperature | Temperature sensor |
| 15 | A/E | Diagnostic link | Diagnostic connector |
| 16 | A | Sensor ground II | Fuel supply sensor II |
| 17 | Not used | ||
| 18 | A | Sensor ground | Remote thermometer sensor |
| 19 | E | Coolant temperature | Remote thermometer sensor |
| 20 | A | Sensor ground | Brake pad sensor |
| 21 | Not used | ||
| 22 | A | Sensor ground | Temperature sensor |
| 23 | E | Tank content II | Fuel supply sensor II |
| 24 | Not used | ||
| 25 | E | Reversing light signal (without AGS) | Reversing light switch |
| 26 | Not used | ||