| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | | Terminal 1 signal | B: Terminal 1 splice |
| | | |
| 2 | | ECE Not used US as of 1995_09 Diagnosis signal TXD | B: OBDII plug |
| | | |
| 3 | | Not used | |
| | | |
| 4 | | Terminal R | B: Fuse F40 |
| | | |
| 5 | | ECE Not used US as of 1995_09 Check engine | B: Splice X8003 |
| | | |
| 6 | | Not used | |
| | | |
| 7 | | Service reminder indicator | B: Integrated instrument cluster control module (IKE) |
| | | |
| 8 | | Not used | |
| | | |
| 9 | | Not used | |
| | | |
| 10 | | Not used | |
| | | |
| 11 | | up to 1994_12 Start detection signal as of 1995_01 Not used | Generator D+ (terminal 61) signal |
| | B: Splice D+ | |
| 12 | | Generator D+ (terminal 61) signal | B: Splice D+ |
| | | |
| 13 | | Speed signal | B: Speed signal splice |
| | | |
| 14 | | Terminal 30 | B: Fuse F109 |
| | | |
| 15 | | Diagnosis signal RXD | B: Splice RXD |
| | | |
| 16 | | Terminal 15 | B: Fuse F22 |
| | | |
| 17 | | Diagnosis signal TXD | B: Splice TXD |
| | | |
| 18 | | Programming voltage signal | B: Engine control module I (DME) |
| | | |
| 19 | | B- (terminal 31) | B: Ground connection |
| | | |
| 20 | | Diagnosis signal TXD | B: Splice TXD |
| | | |