A21 Driver's seat memory control unit

Connector location views

NumberX-pin, colourDescription
X65012-pin, blackPlug connector Driver's seat memory control unit
X146515-pin, blackPlug connector Driver's seat memory control unit
X188403-pin, blackPlug connector Driver's seat memory control unit
X188423-pin, blackPlug connector Driver's seat memory control unit

Pin assignments at plug connector X650

PinTypeDescription / Signal typeConnection /
Measuring notes
1 Not used 
   
2APositive activation Motor, driver's seat backrest adjustmentMotor, driver's seat backrest adjustment
   
3APositive activation Motor, driver's seat height adjustmentMotor, driver's seat height adjustment
   
4APositive activation Motor, driver's seat tiltMotor, driver's seat tilt
   
5APositive activation Motor, driver's seat forward/backward adjustmentMotor, driver's seat forward/backward adjustment
   
6 Not used 
   
7 Not used 
   
8ENegative activation Motor, driver's seat backrest adjustmentMotor, driver's seat backrest adjustment
   
9ENegative activation Motor, driver's seat height adjustmentMotor, driver's seat height adjustment
   
10ENegative activation Motor, driver's seat tiltMotor, driver's seat tilt
   
11ENegative activation Motor, driver's seat forward/backward adjustmentMotor, driver's seat forward/backward adjustment
   
12 Not used 
   

Pin assignments at plug connector X1465

PinTypeDescription / Signal typeConnection /
Measuring notes
1ASignal Motor, driver's seat upward tiltMotor, driver's seat tilt
   
2ASignal Motor, driver's seat downward tiltMotor, driver's seat tilt
   
3ASignal Motor, driver's seat sled backMotor, driver's seat forward/backward adjustment
   
4ASignal Motor, driver's seat sled forwardMotor, driver's seat forward/backward adjustment
   
5ASignal Motor, driver's seat height upMotor, driver's seat height adjustment
   
6AGroundGround point
   
7ASignal Motor, driver's backrest forwardMotor, driver's seat backrest adjustment
   
8ETerminal 30Fuse F65
   
9E/AK-bus signalGeneral module control unit
   
10ASignal Motor, driver's seat height downMotor, driver's seat height adjustment
   
11 Not used 
   
12 Not used 
   
13 Not used 
   
14ASignal Motor, driver's backrest backMotor, driver's seat backrest adjustment
   
15 Not used 
   

Pin assignments at plug connector X18840

PinTypeDescription / Signal typeConnection /
Measuring notes
1MGroundDriver's lumbar support switch
   
2 Not used 
   
3ATerminal 30Driver's lumbar support switch
   

Pin assignments at plug connector X18842

PinTypeDescription / Signal typeConnection /
Measuring notes
1EGroundBackrest switch, entry facility on driver's side 2-door only
   
2EEntry facility, backrest forwardBackrest switch, entry facility on driver's side 2-door only
   
3EEntry facility, backrest backBackrest switch, entry facility on driver's side 2-door only