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• P0503

  P0503

  
  

  Diagnosis information - DME V6 DFI No vehicle speed signal

  Diagnostic conditions

• Battery positive voltage between 10 V and 16 V
• Engine temperature > 30 °C (86 °F)
• Engine speed 1480... 4520 rpm
• Vehicle speed > 20 km/h (13 mph)
• Overrun shut-off
• Brake released
  
  

  Possible fault causes

• No or incorrect signal from PSM control unit
• CAN data bus faulty