| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | | Not used | |
| | | |
| 2 | A | Front lid signal | Saloon only Front lid contact switch |
| | | |
| 3 | | Not used | |
| | | |
| 4 | A | Interface signal RDC/DWA | RDC control unit |
| | | |
| 5 | A | Interior protection | Saloon only Interior protection control unit |
| | | |
| 6 | | Not used | |
| | | |
| 7 | | Not used | |
| | | |
| 8 | A | Vehicle inclination signal | Saloon only Tilt sensor |
| | | |
| 9 | | Not used | |
| | | |
| 10 | A | Rear lid open signal | Rear lid unlocking switch Rear lid release switch (interior) |
| | | |
| 11 | A | Rear lid open signal | Rear lid release switch (interior) |
| | | |
| 12 | A | Signal, anti-jamming system | Jamming protection switch, rear left window right-hand drive Jamming protection switch, rear right window |
| | | |
| 13 | A | Crash signal | Airbag diagnostic module |
| | | |
| 14 | | Not used | |
| | | |
| 15 | E | Wiper I activation | Wiper relay |
| | | |
| 16 | E | Wiper II activation | Wiper relay |
| | | |
| 17 | A | Headlight cleaner activation | Headlight washer module |
| | | |
| 18 | A | Intensive wash activation | Headlight washer module |
| | | |
| 19 | E | LED activation | LED display DWA |
| | | |
| 20 | A | Inclination signal | Tilt sensor |
| | | |
| 21 | | Not used | |
| | | |
| 22 | E | Relay Unlock boot lid | Relay for rear lid motor |
| | | |
| 23 | E | Speedometer (A) output signal | Integrated electronic control unit (IKE) Instrument cluster |
| | | |
| 24 | A | Signal, anti-jamming system | Jamming protection switch, rear right window right-hand drive Jamming protection switch, rear left window |
| | | |
| 25 | A | Intermittent switching supply | Windscreen wiper switch |
| | | |
| 26 | M | Terminal 31 | Ground connector |
| | | |
| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | M | Terminal 31 Power ground | Ground connector |
| | | |
| 2 | A | Open window signal | Power window motor, rear left right-hand drive Power window motor, rear right |
| | | |
| 3 | A | Engine Unlock boot lid | ZV drive rear lid Touring Boot lid servo motor |
| | | |
| 4 | E | Terminal 30 | Fuse F29 |
| | | |
| 5 | A | Open window signal | Power window motor, rear right right-hand drive Power window motor, rear left |
| | | |
| 6 | A | Lock signal | ZV motor drives, rear doors/tank flap |
| | | |
| 7 | | Not used | |
| | | |
| 8 | M | Terminal 31 | Clutch signal |
| | | |
| 9 | A | Servotronic activation | Electrohydraulic converter of servotronic |
| | | |
| 10 | E | Terminal 30 | Fuse F6 |
| | | |
| 11 | A | Servotronic activation | Electrohydraulic converter of servotronic |
| | | |
| 12 | A | Close window signal | Power window motor, rear left right-hand drive Power window motor, rear right |
| | | |
| 13 | A | Central arrest signal | ZV motor drives, rear doors |
| | | |
| 14 | A | Unlock signal | ZV motor drives, rear doors/tank flap |
| | | |
| 15 | A | Close window signal | Power window motor, rear right right-hand drive Power window motor, rear left |
| | | |
| 16 | | Not used | |
| | | |
| 17 | A | Horn signal | Antitheft horn (DWA) |
| | | |
| 18 | A | Pump signal | Washer pump |
| | | |
| 19 | A | Signal, switch off consumer load | Connector, switch off consumer load |
| | | |
| 20 | A | Interior lights signal | Connector, interior lights |
| | | |
| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | E | Terminal 30 | Fuse F55 |
| | | |
| 2 | E | Interior lights signal | Interior/reading lamp, front |
| | | |
| 3 | E | Windscreen wash signal | Windscreen wiper switch |
| | | |
| 4 | E | Windscreen wipe 2 signal | Windscreen wiper switch |
| | | |
| 5 | E | Windscreen wipe 1 signal | Windscreen wiper switch |
| | | |
| 6 | E | Door contact signal | Rear RH door contact switch right-hand drive Rear left door contact switch |
| | | |
| 7 | E | Door contact signal | Rear left door contact switch right-hand drive Rear RH door contact switch |
| | | |
| 8 | | Not used | |
| | | |
| 9 | E | Unlock signal | Rear lid lock switch |
| | | |
| 10 | A | Intensive wash activation | Headlight washer module |
| | | |
| 11 | E | Rear lid closed signal | ZV drive rear lid |
| | | |
| 12 | E/A | K-bus signal line | K-bus connector |
| | | |
| 13 | E | Central locking signal | Antenna amplifier |
| | | |
| 14 | M | Ground | Ground connector |
| | | |
| 15 | E | Close window signal | Rear left door power window switch right-hand drive Rear right door power window switch |
| | | |
| 16 | E | Intensive wash signal | Windscreen wiper switch |
| | | |
| 17 | E | Open window signal | Rear right door power window switch right-hand drive Rear left door power window switch |
| | | |
| 18 | E | Close window signal | Rear right door power window switch right-hand drive Rear left door power window switch |
| | | |
| 19 | E | Signal soft-close automatic unlock | Motor drive for rear lid servo lock |
| | | |
| 20 | E | Signal, windscreen wipers in motion | Wiper motor |
| | | |
| 21 | | Not used | |
| | | |
| 22 | E | Locked signal | Rear lid lock switch |
| | | |
| 23 | E | Terminal R | Fuse F41 |
| | | |
| 24 | E | Close signal | Central locking (ZV) switch |
| | | |
| 25 | E/A | P-bus signal line | P-bus connector |
| | | |
| 26 | E | Open window signal | Rear left door power window switch right-hand drive Rear right door power window switch |
| | | |