Relay unit, radiator fans (706e), Z19DTR
 
  
 
 
  
   
    
     |  | Relay unit, radiator fans (706e), Z19DTR | 
   
  
  
  
   Relay unit containing relays and resistors and thermal fuse.
   
   
   
   
   
   
   
  
  
   
   
    
     
     
     
    
    
     
      | Pin No. | Signal type | Description | 
     
      | 3 | +30 | Power supply 37RH from fuse holder 748. | 
     
      | 6 | +30 | Power supply 37LH from fuse holder 748. | 
     
      | 2 | Power ground | Grounding of 37LH in grounding point G2. | 
     
      | 7 | Power ground | Grounding of 37RH in grounding point G2. | 
     
      | 4, 8 and 5 | Control. Ground = active | Grounded by ECM. The pin is grounded differently depending on the current fan stage. | 
    
   
   
   
  
  
   
   
  
  
  
   
    
     
      | • | Power supply 
 
   
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      | • | Control 
 
   
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