| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | M | Ground | Ground point |
| | | |
| 2 | E | Terminal 30 | Fuse F108 |
| | | |
| 3 | E | Supply Precharge pump, positive | Precharge pump |
| | | |
| 4 | A | Signal Precharge pump, negative | Precharge pump |
| | | |
| 5 | M | Ground | Ground point |
| | | |
| 6 | E | Terminal 30 | Fuse F30 |
| | | |
| 7 | | Not used | |
| | | |
| 8 | A | Signal rpm rate sensor | rpm rate sensor |
| | | |
| 9 | A | Signal rpm rate sensor | rpm rate sensor |
| | | |
| 10 | A | Signal rpm rate sensor | rpm rate sensor |
| | | |
| 11 | E/A | Diagnosis signal TXD | Diagnostic connector |
| | | |
| 12 | A | Signal Wheel speed sensor, front left | Wheel speed sensor, front left |
| | | |
| 13 | A | Supply Wheel speed sensor, rear left | Wheel speed sensor, rear left |
| | | |
| 14 | | Not used | |
| | | |
| 15 | A | Supply Wheel speed sensor, front right | Wheel speed sensor, front right |
| | | |
| 16 | A | Signal Wheel speed sensor, front right | Wheel speed sensor, front right |
| | | |
| 17 | E | Warning lamp signal | Instrument cluster (only for M52) Integrated electronic control unit (IKE) |
| | | |
| 18 | A | Signal Wheel speed sensor, front right | Beam throw adjustment control unit (LWR) Navigation control unit |
| | | |
| 19 | A | Signal Wheel speed sensor, rear right | DME control unit |
| | | |
| 20 | | Not used | |
| | | |
| 21 | A | Signal rpm rate sensor | rpm rate sensor |
| | | |
| 22 | | Not used | |
| | | |
| 23 | E | Signal, terminal 87 | Fuse F31 |
| | | |
| 24 | E/A | CAN-bus high | Instrument cluster (only for M52) Integrated electronic control unit (IKE) |
| | | |
| 25 | M | Ground Pressure sensor | Pressure sensor |
| | | |
| 26 | A | Signal Pressure sensor | Pressure sensor |
| | | |
| 27 | E | Signal, DSC passive button | Switching centre |
| | | |
| 28 | A | Supply ABS/ASC front left speed sensor | Wheel speed sensor, front left |
| | | |
| 29 | A | Signal ABS/ASC rear left speed sensor | Wheel speed sensor, rear left |
| | | |
| 30 | A | Supply ABS/ASC rear right speed sensor | Wheel speed sensor, rear right |
| | | |
| 31 | A | Signal Wheel speed sensor, rear right | Wheel speed sensor, rear right |
| | | |
| 32 | E | Brake light signal | Connector, brake light signal |
| | | |
| 33 | | Not used | |
| | | |
| 34 | A | Signal Wheel speed sensor, rear left | Instrument cluster (only for M52) Integrated electronic control unit (IKE) |
| | | |
| 35 | A | Signal Wheel speed sensor, front left | EDC control unit Navigation control unit |
| | | |
| 36 | E | Signal Brake fluid level | Brake fluid level switch |
| | | |
| 37 | | Not used | |
| | | |
| 38 | | Not used | |
| | | |
| 39 | E | Signal rpm rate sensor | rpm rate sensor |
| | | |
| 40 | E/A | CAN-bus low | Instrument cluster (only for M52) Integrated electronic control unit (IKE) |
| | | |
| 41 | E | Signal rpm rate sensor | rpm rate sensor |
| | | |
| 42 | A | Supply Pressure sensor | Pressure sensor |
| | | |