| Pin | | Description | B: Socket housing S: Pin housing |
|---|
| 1 | | Not used | |
| | | |
| 2 | | Diagnosis signal TXD | B: Data link connector |
| | | S: OBDII plug |
| 3 | | CAN bus high | B: Engine control module (DME), Transmission control module (AGS) |
| | | S: ABS/ASC control module |
| 4 | | CAN bus low | B: Engine control module (DME), Transmission control module (AGS) |
| | | S: ABS/ASC control module |
| 5 | | Evaporative emission valve | B: Engine control module (DME) |
| | | S: Evaporative emission valve |
| 6 | | Engine speed signal (TD) | B: Engine control module (DME) |
| | | S: TD signal splice |
| 7 | | Injection signal (TI) | B: Engine control module (DME) |
| | | S: Integrated instrument cluster control module (IKE) |
| 8 | | Not used | |
| | | |
| 9 | | Not used | |
| | | |
| 10 | | Terminal R | B: Data link connector |
| | | S: Fuse F40 |
| 11 | | Service reminder indicator | B: Data link connector |
| | | S: Integrated instrument cluster control module (IKE) |
| 12 | | RH rear engine speed signal | B: Engine control module (DME) |
| | | S: ABS/ASC control module |
| 13 | | Not used | |
| | | |
| 14 | | Terminal 30h | B: Splice 30h |
| | | S: Integrated instrument cluster control module (IKE) |
| 15 | | Not used | |
| | | |
| 16 | | Fuel reserve II | B: Engine control module (DME) |
| | | S: Instrument cluster |
| 17 | | A/C compressor standby signal | B: A/C splice |
| | | S: Heating and A/C control module |
| 18 | | A/C compressor signal | B: Engine control module (DME) |
| | | S: Heating and A/C control module |
| 19 | | A/C compressor signal | B: Engine control module (DME) |
| | | S: Heating and A/C control module |
| 20 | | Drive-away protection | B: Engine control module (DME) |
| | | S: Electronic drive-away protection control unit (EWS II) |
| 21 | | Back-up light signal | B: Back up light switch |
| | | S: Integrated instrument cluster control module (IKE) |
| 22 | | Oil level - thermal | B: Oil level sensor |
| | | S: Light module |
| 23 | | Not used | |
| | | |
| 24 | | Malfunction indicator lamp (US only) | B: CARB splice |
| | | S: Instrument cluster |
| 25 | | Brake light signal | B: Transmission control module (AGS) |
| | | S: Terminal 54 splice |
| 26 | | Brake light test signal | B: Transmission control module (AGS) |
| | | S: Brake light switch |