A11 Heating and A/C control module

Plug connector overview

NumberX-pin, colourDescription
X61026-pin, bluePlug connector 3 Heating and A/C control module
X61112-pin, naturalPlug connector 4 Heating and A/C control module
X6133-pin, naturalPlug connector 2 Heating and A/C control module
X181536-pin, blackPlug connector 5 Heating and A/C control module
X183413-pin, blackPlug connector 0 Heating and A/C control module

Pin assignments at plug connector X610

PinTypeDescription / Signal typeConnection /
Measuring notes
1EVoltage supply, terminal 15Fuse F20
   
2 Not used 
   
3E/AK-bus signal lineK-bus connector
   
4ESignal, switch off consumer loadConnector, switch off consumer load
   
5ALeft water valve activationWater valves, Left valve
   
6ARight water valve activationWater valves, Right valve
   
7ARelay activation Rear defogger relayRear defogger relay
   
8ASignal Heated windscreen washer jetsConnector, heated washer jets
   
9AAuxiliary water pump activation with independent heating Auxiliary water pump activation with latent heat accumulator:Auxiliary water pump with independent heating Connector, auxiliary water pump with latent heat accumulator:
   
10 Not used 
   
11 Not used 
   
12ESignal inputAUC sensor
   
13APositive activationAUC sensor
   
14ARelay activation Heating blower relayHeating blower relay
   
15AAir conditioning system standby signalNot used
   
16AA/C compressor signalDME control unit DDE control unit
   
17ASignal, A/C compressor relayDME control unit DDE control unit
   
18ERelay activation, auxiliary fan stage IConnector, auxiliary fan stage 1
   
19 Not used 
   
20 Not used 
   
21 Not used 
   
22AShut-down signal with latent heat accumulator:Connector, auxiliary water pump with latent heat accumulator:
   
23ENight light signalConnector, terminal 58g
   
24EVoltage supply terminal 30Fuse F23
   
25ESignal inputAUC sensor
   
26APositive activationAUC sensor
   

Pin assignments at plug connector 4 X611

PinTypeDescription / Signal typeConnection /
Measuring notes
1ASensor signalLeft heat exchanger sensor
   
2ASensor signalRight heat exchanger sensor
   
3ASensor signalEvaporator sensor
   
4ASignal Output stageOutput stage
   
5ASignal Rear mixing air actuatorRear mixing air actuator
   
6ESensor signalSensor connector
   
7EActuating signal Fresh air flap motorFresh air flap motor
   
8AActuating signal Fresh air flap motorFresh air flap motor
   
9AActuating signal Fresh air flap motorFresh air flap motor
   
10EActuating signal Fresh air flap motorFresh air flap motor
   
11ASignal Rear mixing air actuatorRear mixing air actuator
   
12 Not used 
   

Pin assignments at plug connector 2 X613

PinTypeDescription / Signal typeConnection /
Measuring notes
1APositive activationFootwell/rear compartment actuator motor
   
2EGround, actuator motorsFootwell/rear compartment actuator motor
   
3E/AMI-busFootwell/rear compartment actuator motor
   

Pin assignments at plug connector 5 X18153

PinTypeDescription / Signal typeConnection /
Measuring notes
1ASignal, independent heating ON Relay activation Relay for latent heat accumulatorReceiver, independent heating Relay for latent heat accumulator
   
2ASignal, independent heating ONIndependent heating relay
   
3AIndependent heating ON feedbackIndependent park/auxiliary heating
   
4ASensor signalNTC resistor, steering angle sensor
   
5MSensor groundNTC resistor, steering angle sensor
   
6AValve activation Shut-off valve LWSShut-off valve LWS
   

Pin assignments at plug connector 0 X18341

PinTypeDescription / Signal typeConnection /
Measuring notes
1EVoltage supply, terminal 30 for throttle actuatorFuse F9
   
2APositive supply, magnetic clutchHigh pressure switch
   
3MGroundGround connector X219