OBC wiring pinout

# OBC wiring pin out

#### Pin number

#### Function

#### Input/Output

#### Signal

1 | Horn | Output | Ground, approx. 1 Hz
2 | Gong | Output | Ground , approx. 2.5 seconds
3 | Not used |  |
4 | Remote control | Input | Ground
5 | KL R (accessory position ) | Input | Battery Voltage
6 | KL 30 Permanent memory | Input | Battery Voltage
7 | KL 15 Ignition - Start/ Run | Input | Battery Voltage
8 | KL 58K Light switch Park/ Head | Input | Battery Voltage
9 | KL 31g for dimming display | Input | Variable ground
10 | KL 31 | Input | Ground
11 | Relay box, car immobilization ignition cut out | Output | Ground
12 | Not used |  |
13 | Not used |  |
14 | Not used |  |
15 | Fuel level sender | Input | Variable resistance
16 | Ambient temp sensor | Input | Variable resistance
17 | Fuel consumption rate | Input | Frequency
18 | Fuel level reserve switch | Input | Resistance
19 | Not used |  |
20 | Not used |  |
21 | Distance signal | Input | Frequency
22 | KL 50 Ignition - Start position | Input | Battery Voltage
23 | Not used |  |
24 | Not used |  |
25 | Not used |  |
26 | Not used |  |

E30 M3 Repair Manual V2.7. Copyright ©1999-2001 Koala Motorsport & Brett Anderson