| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | E | Voltage supply, terminal 15 | Fuse F20 |
| | | |
| 2 | E | Voltage supply, terminal 15 | Fuse F20 |
| | | |
| 3 | E/A | K-bus signal line | K-bus splice |
| | | |
| 4 | E | Consumer cut-off signal | Consumer cut-off splice |
| | | |
| 5 | A | Left water valve control | Water valve assembly Left valve |
| | | |
| 6 | A | Right water valve control | Water valve assembly Right valve |
| | | |
| 7 | A | Relay control Rear defogger relay | Rear defogger relay |
| | | |
| 8 | A | Power Heated washer jets | Heated washer jets |
| | | |
| 9 | A | Auxiliary water pump control with park heating Auxiliary water pump control With latent heat accumulator: | Auxiliary water pump with park heating Connector, auxiliary water pump With latent heat accumulator: |
| | | |
| 10 | | Not used | |
| | | |
| 11 | E | Terminal 30 voltage supply | Fuse F23 |
| | | |
| 12 | | Not used | |
| | | |
| 13 | | Not used | |
| | | |
| 14 | A | Relay control Blower relay | Blower relay |
| | | |
| 15 | | Not used | |
| | | |
| 16 | A | A/C compressor signal | Engine control module (DME) DDE control module |
| | | |
| 17 | | Not used | |
| | | |
| 18 | | Not used | |
| | | |
| 19 | E | Speed signal | Splice, engine speed (TD) signal |
| | | |
| 20 | M | Control module ground | Ground splice |
| | | |
| 21 | | Not used | |
| | | |
| 22 | A | Shut-down signal With latent heat accumulator: | Connector, auxiliary water pump With latent heat accumulator: |
| | | |
| 23 | E | Nighttime illumination signal | Terminal 58g splice |
| | | |
| 24 | E | Terminal 30 voltage supply | Fuse F23 |
| | | |
| 25 | | Not used | |
| | | |
| 26 | | Not used | |
| | | |
| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | A | Park heating ON signal Relay control Relay for latent heat accumulator | Receiver, independent heating Relay for latent heat accumulator |
| | | |
| 2 | A | Control voltage Blower relay Interface on-board monitor/video module/radio Signal Changeover valve LWS | Connector, blower relay Interface on-board monitor/video module/radio Changeover valve LWS |
| | | |
| 3 | A | Park heating ON feedback signal | Park heating/ventilation control module |
| | | |
| 4 | A | Sensor signal | NTC resistor, steering angle sensor |
| | | |
| 5 | M | Sensor ground | NTC resistor, steering angle sensor |
| | | |
| 6 | A | Valve control Shutoff valve LWS | Shutoff valve LWS |
| | | |