Rear window wiper, faulty
Read the instructions below then 
start the fault diagnostic procedure.
Symptom: Rear window wiper malfunction.
 
  
 
 
  
   
    
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      Rear window wiper, faulty
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     Fault symptoms
    
   
   
    Rear window wiper malfunction.
    
    
    
     
    
    
   
   
  
   
  
  
  
   Diagnostic help
  
  
   Check fuse 8 in the car interior and fuse 4 in the engine compartment.
   
   
  
  
   The following values can be read with the diagnostic tool:
   
   
  
  
  
   
    
     
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       Windscreen washer switch.
        
        
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       Rear intermittent wiper operation switch
        
        
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       Intermittent wiper time.
        
        
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       Rear window wiper parking position
        
        
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   The following function can be activated with the diagnostic tool:
   
   
  
  
  
   
    
     
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       Rear window wiper, relay
        
        
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   Check the wiring harness
  
  
   Jiggle the wiring harness in several places and in various directions to detect intermittent open circuits and short circuits in the wiring harness. Watch the multimeter, diagnostic tool or test lamp during the check.