| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | M | Control unit ground | Ground connector |
| | | |
| 2 | E | Battery charge indicator lamp | Alternator |
| | | |
| 3 | E | Oil pressure indicator lamp | Oil pressure switch |
| | | |
| 4 | E | Reversing light signal (without AGS) | Reversing light switch |
| | | |
| 5 | E | Start position, terminal 30h | Starter |
| | | |
| 6 | E | TD signal (engine speed) | DME control unit |
| | | |
| 7 | E | TI signal (injection signal) | DME control unit |
| | | |
| 8 | A/E | Diagnostic link | Diagnostic connector |
| | | |
| 9 | | Not used | |
| | | |
| 10 | E | Warning lamp preheating/error signal | DDE control unit |
| | | |
| 11 | E | Brake pad wear indicator | Brake pad sensor |
| | | |
| 12 | E | Coolant temperature | Dual temperature sensor |
| | | |
| 13 | E | Sensor ground | Dual temperature sensor |
| | | |
| 14 | | Not used | |
| | | |
| 15 | E | Cruise control (tempomat) indicator lamp | Cruise control module DME |
| | | |
| 16 | M | Control unit ground | Ground connector |
| | | |
| 17 | E | ABS warning lamp | ABS/ASC control unit |
| | | |
| 18 | E | ASC warning lamp | ABS/ASC control unit |
| | | |
| 19 | | Not used | |
| | | |
| 20 | E | Terminal 30 | Fuse F24 |
| | | |
| 21 | E | Terminal 15 | Fuse F18 |
| | | |
| 22 | E | Terminal R | Fuse F40 |
| | | |
| 23 | E | Night light signal | Light module |
| | | |
| 24 | E | TI signal (injection signal) | Temperature sensor |
| | | |
| 25 | A | Sensor ground | Temperature sensor |
| | | |
| 26 | E | Fuel reserve signal (for USA only) | DME control unit |
| | | |
| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | E | BC remote control | Turn indicator/low beam selector |
| | | |
| 2 | E | Tank content I | Electrical fuel pump (EKP I) |
| | | |
| 3 | A | Sensor ground I | Electrical fuel pump (EKP I) |
| | | |
| 4 | | Not used | |
| | | |
| 5 | | Not used | |
| | | |
| 6 | E | Tank content II | Remote thermometer sensor |
| | | |
| 7 | A | Sensor ground | Remote thermometer sensor |
| | | |
| 8 | E | Airbag indicator lamp | Airbag diagnostic module |
| | | |
| 9 | | Not used | |
| | | |
| 10 | | Not used | |
| | | |
| 11 | | Not used | |
| | | |
| 12 | E/A | Diagnostic link TXD | Diagnostic connector |
| | | |
| 13 | | Not used | |
| | | |
| 14 | A | Speedometer (A) output signal | Instrument cluster |
| | | |
| 15 | | Not used | |
| | | |
| 16 | A | Activation, tone 3 acoustic generator | Gong |
| | | |
| 17 | | Not used | |
| | | |
| 18 | | Not used | |
| | | |
| 19 | E | Rear left speed signal | ABS/ASC control unit |
| | | |
| 20 | E/A | I-bus signal line | I-bus connector |
| | | |
| 21 | E | Catalytic converter overheated | Thermal switch (LA Japan) |
| | | |
| 22 | E | Hand brake indicator lamp | Parking brake switch |
| | | |
| 23 | E | Check engine | DME control unit USA |
| | | |
| 24 | | Not used | |
| | | |
| 25 | | Not used | |
| | | |
| 26 | | Not used | |
| | | |