B2950
Read the instructions below then 
start the fault diagnostic procedure.
Symptom: Error message “PARKING ASSIST FAILURE” shown on the SID when reverse is selected.
The SPA stops measurement and acoustic signals are given by the SID when the SPA shuts down.
 
  
 
 
  
  
   
   
    
    
     
     
     Sensor power supply. Shorted to ground
    
    
      
    
    
   
   
  
   Fault symptoms
  
  
  
   
    
     
      | • | Error message “PARKING ASSIST FAILURE” shown on the SID when reverse is selected. 
 
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      | • | The SPA stops measurement and acoustic signals are given by the SID when the SPA shuts down. 
 
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   Condition
  
  
   The following conditions apply for the diagnostic trouble code in question:
   
   
  
  
  
   
    
     
      | • | Ignition switch in ON position 
 
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      | • | The sensor power supply is below approx. 4 V. 
 
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   Diagnostic help
  
  
   This fault diagnosis concerns electrical faults in connection cables or distance sensors.
   
   
  
  
   For further information about readings, see
   
    Menu "Read Values"
   
   .