X21 In-line connector, Engine connector III

Connector overview

NumberX-number of pinsDescription
X2118In-line connector, Engine connector III

Pin assignments at in-line connector X21

Pin Description  B: Socket housing
S: Pin housing
1 Not used 
   
2 Not used 
   
3 Not used 
   
4 Not used 
   
5 Transmission position indicator signalB: Transmission control module (AGS)
  S: Integrated instrument cluster control module (IKE)
6 Transmission range switch lock signal (negative)B: Transmission control module (AGS)
  S: Park/neutral position switch
7 Transmission range switch lock signal (positive)B: Transmission control module (AGS)
  S: Park/neutral position switch
8 Not used 
  S: ASC/DSC switch
9 ASC passive signalB: Transmission control module (AGS)
  S: Cruise control module (Tempomat)
10 Downshift signalB: Transmission control module (AGS)
  S: Steptronic switch
11 Upshift signalB: Transmission control module (AGS)
  S: Steptronic switch
12 Transmission range switch position L2 signalB: Transmission control module (AGS) / Automatic transmission range switch
  S: Electronic drive-away protection control unit (EWS II)
13 Illumination switch panel signalB: Transmission control module (AGS)
  S: Transmission range indicator light
14 Not used 
   
15 Transmission range switch position L5 signalB: Transmission control module (AGS)
  S: Program switch
16 Transmission range switch position L6 signalB: Transmission control module (AGS)
  S: Program switch
17 Not used 
   
18 Kick-down signalB: Transmission control module (AGS)
  S: Kick-down switch