| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | | TD signal | B: Connector TD signal |
| | | |
| 2 | | Not used | |
| | | |
| 3 | | Not used | |
| | | |
| 4 | | Terminal R | B: Fuse F40 |
| | | |
| 5 | | Not used | |
| | | |
| 6 | | Not used | |
| | | |
| 7 | | Service interval indicator | B: Integrated electronic control unit (IKE) |
| | | |
| 8 | | Not used | |
| | | |
| 9 | | Not used | |
| | | |
| 10 | | Not used | |
| | | |
| 11 | | Not used | |
| | | |
| 12 | | Signal, alternator D+ (terminal 61) | B: Connector D+ |
| | | |
| 13 | | Speedometer (A) output signal | B: Connector, speedometer output signal |
| | | |
| 14 | | Terminal 30 | B: Fuse carrier, engine electronics |
| | | |
| 15 | | Diagnosis signal RXD | B: EDC control unit |
| | | |
| 16 | | Terminal 15 | B: Fuse F22 |
| | | |
| 17 | | Not used | |
| | | |
| 18 | | Signal, programming voltage | B: DME control unit |
| | | |
| 19 | | B- (terminal 31) | B: Ground connection |
| | | |
| 20 | | Description | B: Socket housing |
| | | |
| 21 | | Description | B: Socket housing |
| | | |
| 22 | | Description | B: Socket housing |
| | | |