| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | | Not used | |
| | | |
| 2 | A | Engine hood signal | Saloon only Underhood light switch |
| | | |
| 3 | | Not used | |
| | | |
| 4 | A | Interface signal RDC/DWA | RDC control module |
| | | |
| 5 | A | Interior protection | Saloon only Interior protection control module |
| | | |
| 6 | | Not used | |
| | | |
| 7 | | Not used | |
| | | |
| 8 | A | Vehicle tilt signal | Saloon only Tilt sensor |
| | | |
| 9 | | Not used | |
| | | |
| 10 | A | Trunk lid open signal | Trunk lid locking switch Trunk lid release switch (interior) |
| | | |
| 11 | A | Trunk lid open signal | Trunk lid release switch (interior) |
| | | |
| 12 | A | Pressure-sensitive finger guard system signal | Left rear window pressure-sensitive finger guard right-hand drive Right rear window pressure-sensitive finger guard |
| | | |
| 13 | A | Crash signal | Supplemental restraint system control module |
| | | |
| 14 | | Not used | |
| | | |
| 15 | E | Wiper control I | Wiper relay |
| | | |
| 16 | E | Wiper control II | Wiper relay |
| | | |
| 17 | A | Headlight wash control | Headlight washer module |
| | | |
| 18 | A | Intensive wash control | Headlight washer module |
| | | |
| 19 | E | LED control | Anti-theft LED indicator (DWA) |
| | | |
| 20 | A | Tilt signal | Tilt sensor |
| | | |
| 21 | | Not used | |
| | | |
| 22 | E | Relay Unlock trunk lid | Relay for rear lid motor |
| | | |
| 23 | E | Speed signal | Integrated instrument cluster control module (IKE) Instrument cluster |
| | | |
| 24 | A | Pressure-sensitive finger guard system signal | Right rear window pressure-sensitive finger guard right-hand drive Left rear window pressure-sensitive finger guard |
| | | |
| 25 | A | Intermittent wiper voltage supply | Wiper/washer switch |
| | | |
| 26 | M | Terminal 31 | Ground splice |
| | | |
| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | M | Terminal 31 Ground wire | Ground splice |
| | | |
| 2 | A | Open window signal | Left rear window motor right-hand drive Right rear window motor |
| | | |
| 3 | A | Engine Unlock trunk lid | ZV drive rear lid Touring Trunk lid servo motor |
| | | |
| 4 | E | Terminal 30 | Fuse F29 |
| | | |
| 5 | A | Open window signal | Right rear window motor right-hand drive Left rear window motor |
| | | |
| 6 | A | Lock signal | Rear doors/tank access flap central locking motors |
| | | |
| 7 | | Not used | |
| | | |
| 8 | M | Terminal 31 | Clutch signal |
| | | |
| 9 | A | Servotronic control | Electro-hydraulic converter (Servotronic) |
| | | |
| 10 | E | Terminal 30 | Fuse F6 |
| | | |
| 11 | A | Servotronic control | Electro-hydraulic converter (Servotronic) |
| | | |
| 12 | A | Close window signal | Left rear window motor right-hand drive Right rear window motor |
| | | |
| 13 | A | Central arrest signal | Rear doors central locking motors |
| | | |
| 14 | A | Unlock signal | Rear doors/tank access flap central locking motors |
| | | |
| 15 | A | Close window signal | Right rear window motor right-hand drive Left rear window motor |
| | | |
| 16 | | Not used | |
| | | |
| 17 | A | Horn signal | Anti-theft horn (DWA) |
| | | |
| 18 | A | Pump signal | Washer pump |
| | | |
| 19 | A | Consumer cut-off signal | Consumer cut-off splice |
| | | |
| 20 | A | Interior lights signal | Interior lights splice |
| | | |
| 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 | Windshield wash signal | Wiper/washer switch |
| | | |
| 4 | E | Windshield wipe signal 2 | Wiper/washer switch |
| | | |
| 5 | E | Windshield wipe signal 1 | Wiper/washer switch |
| | | |
| 6 | E | Door contact signal | Rear right door jamb switch right-hand drive Left rear door jamb switch |
| | | |
| 7 | E | Door contact signal | Left rear door jamb switch right-hand drive Rear right door jamb switch |
| | | |
| 8 | | Not used | |
| | | |
| 9 | E | Unlock signal | Lift gate lock switch |
| | | |
| 10 | A | Intensive wash control | Headlight washer module |
| | | |
| 11 | E | Trunk lid closed signal | ZV drive rear lid |
| | | |
| 12 | E/A | K-bus signal line | K-bus splice |
| | | |
| 13 | E | Central locking signal | Antenna amplifier |
| | | |
| 14 | M | Ground | Ground splice |
| | | |
| 15 | E | Close window signal | LH rear power window switch right-hand drive RH rear power window switch |
| | | |
| 16 | E | Intensive wash signal | Wiper/washer switch |
| | | |
| 17 | E | Open window signal | RH rear power window switch right-hand drive LH rear power window switch |
| | | |
| 18 | E | Close window signal | RH rear power window switch right-hand drive LH rear power window switch |
| | | |
| 19 | E | Soft-close automatic unlock signal | Soft close trunk lid motor assembly |
| | | |
| 20 | E | Wipers in motion signal | Wiper motor |
| | | |
| 21 | | Not used | |
| | | |
| 22 | E | Locked signal | Lift gate lock switch |
| | | |
| 23 | E | Terminal R | Fuse F41 |
| | | |
| 24 | E | Close signal | Global locking switch |
| | | |
| 25 | E/A | P-bus signal line | P-bus splice |
| | | |
| 26 | E | Open window signal | LH rear power window switch right-hand drive RH rear power window switch |
| | | |