A11a Heating/air conditioning system

Plug connector overview

NumberX-pin, colourDescription
X0113012-pin, blackComponent connector Heating/air conditioning system
X1879318-pin, blackComponent connector Heating/air conditioning system

Pin assignments at plug connector X01130

PinTypeDescription / Signal typeConnection /
Measuring notes
1ESignal, heat exchanger temperatureHeating heat exchanger temperature sensor
   
2 Not used 
   
3ESignal, temperature after evaporatorEvaporator temperature sensor
   
4 Not used 
   
5 Not used 
   
6MSensor groundGround connector
   
7ASignal, electric auxiliary heaterElectric auxiliary heater diesel engine
   
8 Not used 
   
9 Not used 
   
10ASupply, stepper motorsConnector X01128
   
11A/ESignal, LIN busLIN-bus connector X01129
   
12MGround, stepper motorsConnector X01131
   

Pin assignments at plug connector X18793

PinTypeDescription / Signal typeConnection /
Measuring notes
1A/ESignal, LIN busBlower output stage
   
2 Not used 
   
3ESignal, refrigerant pressure sensorCoolant pressure sensor
   
4AVoltage supply, refrigerant pressure sensorCoolant pressure sensor
   
5 Not used 
   
6A/ESignal, CAN-busConnector, CAN bus
   
7A/ESignal, CAN-busConnector, CAN bus
   
8MGround, refrigerant pressure sensorCoolant pressure sensor
   
9 Not used 
   
10ESupply, terminal 30Fuse F26
   
11ASignal, refrigerant control valveIntegrated supply module (IVM)
   
12ASignal, water valveWater valves
   
13ASignal, auxiliary water pumpAuxiliary water pump
   
14ASignal, rear window defoggerRear defogger relay
   
15ASignal, heated windscreen water jetsHeated windscreen water jets
   
16ANot used 
   
17 Not used 
   
18MGroundGround point