A1 General module

Connector overview

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

Pin assignments at connector X253

PinTypeDescription / Signal typeConnection /
Measuring notes
1 Not used 
   
2AEngine hood signalUnderhood light switch
   
3 Not used 
   
4AInterface signal RDC/DWARDC control module
   
5AInterior protectionInterior protection control module
   
6 Not used 
   
7 Not used 
   
8AVehicle tilt signalTilt sensor
   
9 Not used 
   
10ATrunk lid open signalTrunk lid locking switch
   
11ETrunk lid open signalSwitching center
   
12APressure-sensitive finger guard system signalLeft rear window pressure-sensitive finger guard right-hand drive Right rear window pressure-sensitive finger guard
   
13ACrash signalSupplemental restraint system control module
   
14 Not used 
   
15EWiper control IWiper relay
   
16EWiper control IIWiper relay
   
17AHeadlight wash controlHeadlight washer module
   
18ASignal, child safety lockRelay, rear compartment backrest
   
19ELED controlElectrochromic rear view mirror
   
20ATilt signalTilt sensor
   
21 Not used 
   
22ARelay Unlock trunk lidRelay, unlock boot lid
   
23ESpeed signal, rearSplice X1101
   
24APressure-sensitive finger guard system signalRight rear window pressure-sensitive finger guard right-hand drive Left 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
1MTerminal 31 Ground wireGround point
   
2AOpen window signalLeft rear window motor right-hand drive Right rear window motor
   
3AEngine Unlock trunk lidZV drive rear lid Touring Trunk lid servo motor
   
4ETerminal 30Fuse F60
   
5AOpen window signalRight rear window motor right-hand drive Left rear window motor
   
6ACentral arrest signalRear doors central locking motors
   
7 Not used 
   
8 Not used 
   
9AServotronic controlElectro-hydraulic converter (Servotronic)
   
10ETerminal 30Fuse F27
   
11AMeasuring resistor, ServotronicElectro-hydraulic converter (Servotronic)
   
12AClose window signalLeft rear window motor right-hand drive Right rear window motor
   
13ACentral lock (ZV)Rear doors central locking motors
   
14AUnlock signalRear doors/tank access flap central locking motors
   
15AClose window signalRight rear window motor right-hand drive Left 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 F14
   
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
   
8 Not used 
   
9 Not used 
   
10 Not used 
   
11 Not used 
   
12E/AK-bus signal lineK-bus splice
   
13ECentral locking signalElectrochromic rear view mirror Central locking remote control
   
14MGroundGround splice
   
15EClose window signalLH rear power window switch right-hand drive RH rear power window switch
   
16EIntensive wash signalWiper/washer switch
   
17EOpen window signalRH rear power window switch right-hand drive LH rear power window switch
   
18EClose window signalRH rear power window switch right-hand drive LH rear power window switch
   
19ESoft-close automatic unlock signalSoft close trunk lid motor assembly
   
20EWipers in motion signalWiper motor
   
21 Not used 
   
22ETrunk lid open signalTrunk lid locking switch
   
23ETerminal RFuse F41
   
24EClose signalHazard switch
   
25E/AP-bus signal lineP-bus splice
   
26EOpen window signalLH rear power window switch right-hand drive RH rear power window switch