| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | | Not used | |
| | | |
| 2 | E/A | CAN-bus high | CAN HIGH connector |
| | | |
| 3 | E | Signal Level switch, air suspension | Level switch, air suspension |
| | | |
| 4 | | Not used | |
| | | |
| 5 | E | Signal Level switch, air suspension | Level switch, air suspension |
| | | |
| 6 | A | Signal Air seal valve, front axle | Air seal valve, front axle |
| | | |
| 7 | A | Supply Air seal valve, front axle | Air seal valve, front axle |
| | | |
| 8 | A | Signal Air seal valve, front axle | Air seal valve, front axle |
| | | |
| 9 | A | Signal Air seal valve, rear axle | Air seal valve, rear axle |
| | | |
| 10 | A | Supply Air seal valve, rear axle | Air seal valve, rear axle |
| | | |
| 11 | A | Signal Air seal valve, rear axle | Air seal valve, rear axle |
| | | |
| 12 | A | Signal Pressure accumulator | Pressure accumulator |
| | | |
| 13 | A | Supply Pressure accumulator | Pressure accumulator |
| | | |
| 14 | E | Signal Hydraulic unit, air suspension | Hydraulic unit, air suspension |
| | | |
| 15 | E | Signal Hydraulic unit, air suspension | Hydraulic unit, air suspension |
| | | |
| 16 | A | Signal Relay, compressor, air suspension | Relay, compressor, air suspension |
| | | |
| 17 | E | Signal Hydraulic unit, air suspension | Hydraulic unit, air suspension |
| | | |
| 18 | E | Terminal 30 | Fuse F57 |
| | | |
| 19 | | Not used | |
| | | |
| 20 | E/A | CAN-bus low | CAN LOW connector |
| | | |
| 21 | E | Signal Level switch, air suspension | Level switch, air suspension |
| | | |
| 22 | E | Signal Level switch, air suspension | Level switch, air suspension |
| | | |
| 23 | | Not used | |
| | | |
| 24 | E | Signal Front right level sensor | Front right level sensor |
| | | |
| 25 | E | Signal Front left level sensor | Front left level sensor |
| | | |
| 26 | E | Signal Rear right level sensor | Rear right level sensor |
| | | |
| 27 | E | Signal Rear left level sensor | Rear left level sensor |
| | | |
| 28 | E | Signal Pressure sensor, plenum chamber | Pressure sensor, plenum chamber |
| | | |
| 29 | | Not used | |
| | | |
| 30 | | Not used | |
| | | |
| 31 | E | Signal Hydraulic unit, air suspension | Hydraulic unit, air suspension |
| | | |
| 32 | A | Supply Front left level sensor | Front left level sensor |
| | | |
| 33 | A | Supply Front right level sensor | Front right level sensor |
| | | |
| 34 | A | Supply Pressure sensor, plenum chamber | Pressure sensor, plenum chamber |
| | | |
| 35 | E | Signal Hydraulic unit, air suspension | Hydraulic unit, air suspension |
| | | |
| 36 | M | Ground | Ground connector |
| | | |
| 37 | E/A | K-bus signal line | K-bus connector |
| | | |
| 38 | E | Signal, switch off consumer load | Connector, load cutout X18121 |
| | | |
| 39 | | Not used | |
| | | |
| 40 | E | Signal Level switch, air suspension | Level switch, air suspension |
| | | |
| 41 | | Not used | |
| | | |
| 42 | M | Ground Front right level sensor | Front right level sensor |
| | | |
| 43 | M | Ground Front left level sensor | Front left level sensor |
| | | |
| 44 | M | Ground Rear right level sensor | Rear right level sensor |
| | | |
| 45 | M | Ground Rear left level sensor | Rear left level sensor |
| | | |
| 46 | M | Ground Pressure sensor, plenum chamber | Pressure sensor, plenum chamber |
| | | |
| 47 | | Not used | |
| | | |
| 48 | | Not used | |
| | | |
| 49 | E | Signal Hydraulic unit, air suspension | Hydraulic unit, air suspension |
| | | |
| 50 | A | Supply Rear right level sensor | Rear right level sensor |
| | | |
| 51 | A | Supply Rear left level sensor | Rear left level sensor |
| | | |
| 52 | | Not used | |
| | | |
| 53 | | Not used | |
| | | |
| 54 | | Not used | |
| | | |