| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | E | Signal, rear level sensor | Rear left level sensor |
| | | |
| 2 | E | Signal, rear level sensor | Rear right level sensor |
| | | |
| 3 | | Not occupied | |
| | | |
| 4 | | Not occupied | |
| | | |
| 5 | M | Sensor ground | Rear right level sensor |
| | | |
| 6 | M | Ground | Ground point |
| | | |
| 7 | A | Supply, level sensor | Rear right level sensor |
| | | |
| 8 | | Not occupied | |
| | | |
| 9 | | Not occupied | |
| | | |
| 10 | | Not occupied | |
| | | |
| 11 | A | Signal, rear left valve | Air supply system |
| | | |
| 12 | A | Signal, compressor pump control | Air supply system |
| | | |
| 13 | A | Signal, down valve | Air supply system |
| | | |
| 14 | | Not occupied | |
| | | |
| 15 | | Not occupied | |
| | | |
| 16 | | Not occupied | |
| | | |
| 17 | | Not occupied | |
| | | |
| 18 | M | Sensor ground | Rear left level sensor |
| | | |
| 19 | | Not occupied | |
| | | |
| 20 | A | Supply, level sensor | Rear left level sensor |
| | | |
| 21 | | Not occupied | |
| | | |
| 22 | E | Supply, terminal 30 | Fuse distribution box |
| | | |
| 23 | | Not occupied | |
| | | |
| 24 | A/E | Bus signal | CAN-bus connector |
| | | |
| 25 | A/E | Bus signal | CAN-bus connector |
| | | |
| 26 | A | Signal, rear right valve | Air supply system |
| | | |