17963/P1555/005461

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17963/P1555 - Boost Pressure Control: Upper Limit Exceeded

Possible Symptoms

  • Boost pressure too high
  • Reduced power output (limp mode)

Possible Causes

  • Hoses/Pipes incorrect connected, disconnected, blocked or leaking
  • Charger Pressure Control defective
    • Solenoid Valve for Boost Pressure Control (N75) defective
  • Turbocharger defective

Possible Solutions

  • Check Hoses/Pipes to/between Components
  • Check Charge Pressure Control
    • Check Solenoid Valve for Boost Pressure Control (N75)
  • Check turbocharger
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