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• P0571

  P0571

  
  

  Diagnosis information - DME V6 DFI Brake light switch

  NOTE:

• Diagnosis checks the unambiguity of the states which are output via the brake light switch.
  This fault is set if the state [brake actuated] or [brake not actuated] is not unambiguously detected.
• The switches are located in the brake master cylinder.
• Evaluation takes place in the PSM control unit.
  
  

  Diagnostic conditions

• Ignition on
• Battery positive voltage between 10 V and 16 V
  
  

  Possible fault causes

• The fault is set in the PSM control unit; refer to this