X21 Engine plug III

Connector overview

NumberX-pin, colorDescription
X2118-pin, BlackEngine connector III

Pin assignments at connector X21

Pin Description  B: Socket housing
S: Pin housing
1 Not usedB:
  S:
2 Not usedB:
  S:
3 Not usedB:
  S:
4 Not usedB:
  S:
5 Transmission position indicator signalB: Integrated instrument cluster control module (IKE)
  S: Transmission control module (AGS)
6 Solenoid valves +B: Park/neutral position switch
  S: Transmission control module (AGS)
7 Solenoid valvesB: Park/neutral position switch
  S: Transmission control module (AGS)
8 Not usedB:
  S:
9 Transmission influencing signalB: Cruise control module (Tempomat)
  S: Transmission control module (AGS)
10 Steptronic signal, upshiftB: Steptronic switch
  S: Transmission control module (AGS)
11 Steptronic signal, backB: Steptronic switch
  S: Transmission control module (AGS)
12 Transmission range switch position L2 signalB: Electronic drive-away protection control unit (EWS)
  S: Transmission control module (AGS)
13 Illumination switch panel signalB: Transmission range indicator light
  S: Transmission control module (AGS)
14 Not usedB:
  S:
15 Transmission range switch position L5 signalB: Program switch
  S: Transmission control module (AGS)
16 Transmission range switch position L6 signalB: Program switch
  S: Transmission control module (AGS)
17 Not usedB:
  S:
18 Kick-down switch signalB: Kick-down switch
  S: Transmission control module (AGS)