A1 General module

Connector overview

NumberX-pin, colorDescription
X25326-pin, blackConnector B General module
X25420-pin, blackConnector C General module
X33226-pin, naturalConnector A General module

Pin assignments at connector X253

PinTypeDescription / Signal typeConnection /
Measuring notes
1ADriver's door contact signalDriver's door jamb switch
   
2AEngine hood signalUnderhood light switch
   
3 Not used 
   
4 Not used 
   
5EInterior protectionInterior protection control module
   
6 Not used 
   
7 Not used 
   
8AVehicle tilt signalTilt sensor
   
9 Not used 
   
10ATrunk lid open signalTrunk lid locking switch
   
11ATrunk lid open signalTrunk lid release switch (interior)
   
12APressure-sensitive finger guard system signalLeft rear window pressure-sensitive finger guard
   
13ACrash signalInertia fuel shutoff switch
   
14ADrive-away protectionElectronic drive-away protection control unit (EWS)
   
15EWiper control IWiper relay I
   
16EWiper control IIWiper relay II
   
17EHeadlight wash controlHeadlight washer module
   
18AIntensive wash controlHeadlight washer module
   
19ELED controlElectrochromic rear view mirror
   
20ATilt signalTilt sensor
   
21 Not used 
   
22 Not used 
   
23ESpeed signalIntegrated instrument cluster control module (IKE)
   
24APressure-sensitive finger guard system signalRight rear window pressure-sensitive finger guard
   
25AIntermittent wiper voltage supplyWiper/washer switch
   
26MTerminal 31Ground splice
   

Pin assignments at connector X254

PinTypeDescription / Signal typeConnection /
Measuring notes
1MGroundGround
   
2AOpen window signalLeft rear window motor
   
3ASoft-close motor signalSoft close trunk lid motor assembly
   
4ETerminal 30Fuse F27
   
5AOpen window signalRight rear window motor
   
6ALock signalRear doors/tank access flap central locking motors
   
7 Not used 
   
8MControl module groundGround splice
   
9AServotronic controlElectro-hydraulic converter (Servotronic)
   
10ETerminal 30Fuse F4
   
11AServotronic controlElectro-hydraulic converter (Servotronic)
   
12AClose window signalLeft rear window motor
   
13ACentral arrest signalRear doors central locking motors
   
14AUnlock signalRear doors/tank access flap central locking motors
   
15AClose window signalRight rear window motor
   
16 Not used 
   
17AHorn signalAnti-theft horn (DWA)
   
18APump signalWasher pump
   
19AConsumer cut-off signalConsumer cut-off splice
   
20AInterior lights signalInterior lights splice
   

Pin assignments at connector X332

PinTypeDescription / Signal typeConnection /
Measuring notes
1ETerminal 30Fuse F11
   
2EInterior lights signalInterior/reading lamp, front
   
3EWindshield wash signalWiper/washer switch
   
4EWindshield wipe signal 2Wiper/washer switch
   
5EWindshield wipe signal 1Wiper/washer switch
   
6EDoor contact signalRear right door jamb switch
right-hand drive Left rear door jamb switch  
7EDoor contact signalLeft rear door jamb switch
right-hand drive Rear right door jamb switch  
8EDoor contact signalPassenger's door jamb switch
   
9EUnlock signalLift gate lock switch
   
10AIntensive wash controlHeadlight washer module
   
11ETrunk lid closed signalZV drive rear lid
   
12E/AK-bus signal lineK-bus splice
   
13ECentral locking signalCentral locking remote control
   
14MGroundGround splice
   
15EClose window signalLH rear power window switch
   
16EIntensive wash signalWiper/washer switch
   
17EOpen window signalRH rear power window switch
   
18EClose window signalRH rear power window switch
   
19ESoft-close automatic unlock signalSoft close trunk lid motor assembly
   
20EWipers in motion signalWiper motor
   
21 Not used 
   
22ELocked signalLift gate lock switch
   
23ETerminal RFuse F38
   
24EClose signalGlobal locking switch
   
25E/AP-bus signal lineP-bus splice
   
26EOpen window signalLH rear power window switch