A207 Rear compartment heater/air conditioner

Connector overview

NumberX-pin, colorDescription
X183026-pin, BlackConnector A Rear compartment heater/air conditioner
X18313-pin, BlackConnector B Rear compartment heater/air conditioner
X18323-pin, BlackConnector C Rear compartment heater/air conditioner

Pin assignments at connector X1830

PinTypeDescription / Signal typeConnection /
Measuring notes
1 Not used 
   
2ESensor signalEvaporator sensor, rear compartment air conditioning
   
3ASensors (+)Rear mixing actuator
   
4 Not used 
   
5 Not used 
   
6 Not used 
   
7ENighttime illumination signal lineTerminal 58g splice
   
8 Not used 
   
9 Not used 
   
10 Not used 
   
11 Not used 
   
12MControl module groundWater valve relay, rear compartment air conditioning
   
13MControl module groundFront shutoff valve
   
14 Not used 
   
15 Not used 
   
16 Not used 
   
17 Not used 
   
18MControl module groundShutoff valve, rear compartment air conditioning
   
19ASignal Output stage, rear compartment air conditioningOutput stage, rear compartment air conditioning
   
20EConsumer cut-off signalGeneral module
   
21MGroundGround splice
   
22MSensor groundSensor connector
   
23MGroundGround splice
   
24EVoltage supply, terminal 15Fuse F68
   
25ETerminal 30 voltage supplyRear compartment blower relay
   
26E/AK-bus signal lineGeneral module
   

Pin assignments at connector X1831

PinTypeDescription / Signal typeConnection /
Measuring notes
1 Not used 
   
2AMixing air actuator desired valueRear mixing actuator
   
3MControl module groundOutput stage, rear compartment air conditioning
   

Pin assignments at connector X1832

PinTypeDescription / Signal typeConnection /
Measuring notes
1AVoltage controlRear compartment, left footwell flap motor
   
2MActuator motors groundRear compartment, left footwell flap motor
   
3E/AMI-busRear compartment, left footwell flap motor