A1 General Module Control Unit D X255 Connector End View
Pin Assignments At Plug Connector X255
| Pin | Type | Description /Signal type | Connection /Measuring notes |
|---|---|---|---|
| 1 | Not used | ||
| 2 | E | Signal, wiper switch 1 | Windscreen wiper switch |
| 3 | E | Signal, rear window wipe | Windscreen wiper switch |
| 4 | E | Signal, recirculating air switch | Heating/air conditioning control panel |
| 5 | E | Signal, fog light relay activation | Switch panel |
| 6 | E | Signal, high beam/headlight flasher switch | Direction indicator/low beam switch |
| 7 | E | Signal, front passenger's power window switch, open | Switch panel |
| 8 | E | Signal, rear-window defroster switch | Heating/air conditioning control panel |
| 9 | Not used | ||
| 10 | Not used | ||
| 11 | E | Signal, headlight switch | Direction indicator/low beam switch |
| 12 | Not used | ||
| 13 | E | Signal, LED for recirculating air switch | Heating/air conditioning control panel |
| 14 | A | Signal, DWA LED | Windscreen wiper switch |
| 15 | A | Signal, rear fog light | Switch panel |
| 16 | E | Signal, LED for rear-window defroster | Heating/air conditioning control panel |
| 17 | E | Signal, air conditioning switch | Heating/air conditioning control panel |
| 18 | E | Signal, windshield defroster switch | Heating/air conditioning control panel |
| 19 | E | Signal, wipe/wash, rear | Connector X13661 |
| 20 | Not used | ||
| 21 | E | Signal, wipe/wash, front | Connector X13662 |
| 22 | E | Signal, wiper switch 2 | Windscreen wiper switch |
| 23 | E | Signal, air conditioning switch | Heating/air conditioning control panel |
| 24 | E | Signal, rear fog light | Switch panel |
| 25 | E | Switch signal, passenger's window regulator closed | Switch panel |
| 26 | E | Signal, windshield defroster switch | Heating/air conditioning control panel |
| 27 | E | Signal, parking light switch | Direction indicator/low beam switch |
| 28 | E/A | K-bus signal | A2 Instrument cluster control unit |
| 29 | Not used | ||
| 30 | A | Blower control voltage | X15 Intermediate connector, instruments |
| 31 | Not used | ||
| 32 | E | Signal, left/right turn signal lamp switch | Direction indicator/low beam switch |
| 33 | E | Signal Evaporator temperature sensor | Evaporator temperature sensor |
| 34 | E | Signal, recirculating air switch with xenon headlight Supply, control module, headlight beam height control | Fresh air/air recirculation flap motor with xenon headlight Control module, headlight beam height control |
| 35 | E | Signal Evaporator temperature sensor | Evaporator temperature sensor |
| 36 | Not used | ||
| 37 | Not used | ||
| 38 | E | Signal Pushbutton, cruise control | Button pad, left |
| 39 | Not used | ||
| 40 | E | Signal, Driver's power window switch, closed | Switch panel |
| 41 | E | Signal, Driver's power window switch, open | Switch panel |
| 42 | E | Signal, centerlock button | Switch panel |
| 43 | E | Signal, hazard warning switch | Instrument cluster control module |
| 44 | E | Signal, centerlock button | Switch panel |
| 45 | Not used | ||
| 46 | E/A | K-bus signal | On-board monitor control unit |
| 47 | Not used | ||
| 48 | Not used | ||
| 49 | Not used | ||
| 50 | Not used | ||
| 51 | Not used | ||
| 52 | E | Signal, recirculating air switch with xenon headlight Supply, control module, headlight beam height control | Fresh air/air recirculation flap motor with xenon headlight Control module, headlight beam height control |
| 53 | Not used | ||
| 54 | Not used |