| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | M | Ground | Ground point |
| | | |
| 2 | E | Navigation bus signal line | Fuse F57 |
| | | |
| 3 | M | Ground | Interface |
| | | |
| 4 | A | Signal Interface | Interface |
| | | |
| 5 | M | Terminal 31 | Interface |
| | | |
| 6 | M | Terminal 31 | Interface |
| | | |
| 7 | A | Signal Interface | Interface |
| | | |
| 8 | A | Signal Interface | Interface |
| | | |
| 9 | A | Signal Interface | Interface |
| | | |
| 10 | M | Shield | Interface |
| | | |
| 11 | | Not used | |
| | | |
| 12 | | Not used | |
| | | |
| 13 | E | Positive input signal, microphone | Microphone |
| | | |
| 14 | A | Positive input signal, speaker | Left front speaker Top Hifi Amplifier |
| | | |
| 15 | | Not used | |
| | | |
| 16 | M | Shield | Navigation control unit |
| | | |
| 17 | | Not used | |
| | | |
| 18 | | Not used | |
| | | |
| 19 | E/A | I-bus signal line | I-bus connector |
| | | |
| 20 | E | Terminal R | Unloader relay terminal R |
| | | |
| 21 | A | Terminal R | Interface |
| | | |
| 22 | A | Signal Interface | Interface |
| | | |
| 23 | E/A | Diagnostic link TXD | Interface |
| | | |
| 24 | A | Signal Interface | Interface |
| | | |
| 25 | A | Signal Interface | Interface |
| | | |
| 26 | A | Signal Interface | Interface |
| | | |
| 27 | A | Signal Interface | Interface |
| | | |
| 28 | E/A | Signal Interface | Interface |
| | | |
| 29 | | Not used | |
| | | |
| 30 | A | Telephone mute signal | Radio |
| | | |
| 31 | M | Shield | Microphone |
| | | |
| 32 | M | Negative input signal, speaker | Left front speaker Top Hifi Amplifier |
| | | |
| 33 | | Not used | |
| | | |
| 34 | E/A | Diagnostic link TXD | Navigation control unit |
| | | |
| 35 | E/A | Diagnostic link RXD | Navigation control unit |
| | | |
| 36 | | Not used | |
| | | |
| 37 | | Not used | |
| | | |
| 38 | E | Signal, terminal 58g | Light module |
| | | |
| 39 | A | Signal, terminal 58g | Interface |
| | | |
| 40 | A | Signal Interface | Interface |
| | | |
| 41 | E/A | Diagnostic link RXD | Interface |
| | | |
| 42 | A | Signal Interface | Interface |
| | | |
| 43 | A | Signal Interface | Interface |
| | | |
| 44 | M | Shield | Interface |
| | | |
| 45 | A | Signal Interface | Interface |
| | | |
| 46 | E/A | Diagnostic link RXD | Interface |
| | | |
| 47 | | Not used | |
| | | |
| 48 | A | Signal, alarm switch | Amplifier |
| | | |
| 49 | M | Ground | Microphone |
| | | |
| 50 | | Not used | |
| | | |
| 51 | | Not used | |
| | | |
| 52 | A | Signal Navigation control unit | Navigation control unit |
| | | |
| 53 | A | Signal Navigation control unit | Navigation control unit |
| | | |
| 54 | | Not used | |
| | | |